./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--mtd--ubi--ubi.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bc791b3-5314-47a5-981b-4964c919e921/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bc791b3-5314-47a5-981b-4964c919e921/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bc791b3-5314-47a5-981b-4964c919e921/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bc791b3-5314-47a5-981b-4964c919e921/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--mtd--ubi--ubi.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bc791b3-5314-47a5-981b-4964c919e921/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bc791b3-5314-47a5-981b-4964c919e921/bin/utaipan-I9t0OCRTmS --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 653bbac28ac5777df45378e95c3d4d049df50356a6a758af8df299c50637b77a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:36:44,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:36:44,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:36:44,083 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:36:44,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:36:44,084 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:36:44,086 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:36:44,088 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:36:44,090 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:36:44,091 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:36:44,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:36:44,093 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:36:44,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:36:44,095 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:36:44,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:36:44,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:36:44,103 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:36:44,107 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:36:44,108 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:36:44,114 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:36:44,115 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:36:44,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:36:44,121 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:36:44,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:36:44,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:36:44,125 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:36:44,125 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:36:44,126 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:36:44,127 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:36:44,128 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:36:44,128 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:36:44,129 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:36:44,130 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:36:44,131 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:36:44,132 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:36:44,132 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:36:44,133 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:36:44,134 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:36:44,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:36:44,143 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:36:44,143 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:36:44,144 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bc791b3-5314-47a5-981b-4964c919e921/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 08:36:44,183 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:36:44,183 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:36:44,183 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:36:44,184 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:36:44,184 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:36:44,184 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:36:44,185 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:36:44,185 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:36:44,185 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:36:44,185 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:36:44,185 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:36:44,185 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:36:44,186 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:36:44,186 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:36:44,189 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:36:44,190 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:36:44,190 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:36:44,190 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:36:44,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:36:44,191 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:36:44,191 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:36:44,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:36:44,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:36:44,193 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:36:44,193 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:36:44,194 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:36:44,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:36:44,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:36:44,195 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:36:44,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:36:44,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:36:44,196 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:36:44,196 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:36:44,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:36:44,196 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:36:44,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:36:44,197 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:36:44,198 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:36:44,198 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bc791b3-5314-47a5-981b-4964c919e921/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bc791b3-5314-47a5-981b-4964c919e921/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 653bbac28ac5777df45378e95c3d4d049df50356a6a758af8df299c50637b77a [2022-11-19 08:36:44,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:36:44,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:36:44,513 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:36:44,515 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:36:44,516 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:36:44,517 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bc791b3-5314-47a5-981b-4964c919e921/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--mtd--ubi--ubi.ko-entry_point.cil.out.i [2022-11-19 08:36:44,612 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bc791b3-5314-47a5-981b-4964c919e921/bin/utaipan-I9t0OCRTmS/data/40fa309b1/0e672efca5d649fa925b2f69b6130e6b/FLAG2b0fb95af [2022-11-19 08:36:45,823 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:36:45,824 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bc791b3-5314-47a5-981b-4964c919e921/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--mtd--ubi--ubi.ko-entry_point.cil.out.i [2022-11-19 08:36:45,901 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bc791b3-5314-47a5-981b-4964c919e921/bin/utaipan-I9t0OCRTmS/data/40fa309b1/0e672efca5d649fa925b2f69b6130e6b/FLAG2b0fb95af [2022-11-19 08:36:46,047 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bc791b3-5314-47a5-981b-4964c919e921/bin/utaipan-I9t0OCRTmS/data/40fa309b1/0e672efca5d649fa925b2f69b6130e6b [2022-11-19 08:36:46,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:36:46,050 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:36:46,051 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:36:46,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:36:46,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:36:46,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:36:46" (1/1) ... [2022-11-19 08:36:46,059 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44f0b928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:46, skipping insertion in model container [2022-11-19 08:36:46,059 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:36:46" (1/1) ... [2022-11-19 08:36:46,065 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:36:46,306 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:36:46,990 WARN L1258 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4269] [2022-11-19 08:36:46,990 WARN L1258 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4270-4271] [2022-11-19 08:36:47,478 WARN L234 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_8bc791b3-5314-47a5-981b-4964c919e921/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--mtd--ubi--ubi.ko-entry_point.cil.out.i[125841,125854] [2022-11-19 08:36:53,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:36:53,527 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:36:53,697 WARN L1258 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4269] [2022-11-19 08:36:53,697 WARN L1258 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4270-4271] [2022-11-19 08:36:53,703 WARN L234 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_8bc791b3-5314-47a5-981b-4964c919e921/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--mtd--ubi--ubi.ko-entry_point.cil.out.i[125841,125854] [2022-11-19 08:36:54,698 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:36:54,964 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:36:54,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:54 WrapperNode [2022-11-19 08:36:54,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:36:54,966 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:36:54,966 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:36:54,966 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:36:54,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:54" (1/1) ... [2022-11-19 08:36:55,269 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:54" (1/1) ... [2022-11-19 08:36:56,161 INFO L138 Inliner]: procedures = 600, calls = 14474, calls flagged for inlining = 262, calls inlined = 250, statements flattened = 29455 [2022-11-19 08:36:56,162 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:36:56,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:36:56,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:36:56,164 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:36:56,190 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:54" (1/1) ... [2022-11-19 08:36:56,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:54" (1/1) ... [2022-11-19 08:36:56,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:54" (1/1) ... [2022-11-19 08:36:56,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:54" (1/1) ... [2022-11-19 08:36:57,457 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:54" (1/1) ... [2022-11-19 08:36:57,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:54" (1/1) ... [2022-11-19 08:36:57,643 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:54" (1/1) ... [2022-11-19 08:36:57,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:54" (1/1) ... [2022-11-19 08:36:57,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:36:57,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:36:57,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:36:57,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:36:57,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:54" (1/1) ... [2022-11-19 08:36:57,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:36:57,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bc791b3-5314-47a5-981b-4964c919e921/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:36:57,885 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bc791b3-5314-47a5-981b-4964c919e921/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:36:57,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bc791b3-5314-47a5-981b-4964c919e921/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:36:57,934 INFO L130 BoogieDeclarations]: Found specification of procedure volume_sysfs_init [2022-11-19 08:36:57,934 INFO L138 BoogieDeclarations]: Found implementation of procedure volume_sysfs_init [2022-11-19 08:36:57,934 INFO L130 BoogieDeclarations]: Found specification of procedure self_check_ec_hdr [2022-11-19 08:36:57,935 INFO L138 BoogieDeclarations]: Found implementation of procedure self_check_ec_hdr [2022-11-19 08:36:57,935 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_eba_unmap_leb [2022-11-19 08:36:57,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_eba_unmap_leb [2022-11-19 08:36:57,936 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-19 08:36:57,936 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2022-11-19 08:36:57,936 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2022-11-19 08:36:57,936 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_create [2022-11-19 08:36:57,936 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_create [2022-11-19 08:36:57,936 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_resize_volume [2022-11-19 08:36:57,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_resize_volume [2022-11-19 08:36:57,937 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_free_internal_volumes [2022-11-19 08:36:57,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_free_internal_volumes [2022-11-19 08:36:57,937 INFO L130 BoogieDeclarations]: Found specification of procedure __schedule_ubi_work [2022-11-19 08:36:57,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __schedule_ubi_work [2022-11-19 08:36:57,938 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_volume_notify [2022-11-19 08:36:57,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_volume_notify [2022-11-19 08:36:57,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-19 08:36:57,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-19 08:36:57,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 08:36:57,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 08:36:57,939 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_detach_mtd_dev [2022-11-19 08:36:57,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_detach_mtd_dev [2022-11-19 08:36:57,939 INFO L130 BoogieDeclarations]: Found specification of procedure put_mtd_device [2022-11-19 08:36:57,939 INFO L138 BoogieDeclarations]: Found implementation of procedure put_mtd_device [2022-11-19 08:36:57,940 INFO L130 BoogieDeclarations]: Found specification of procedure erase_block [2022-11-19 08:36:57,940 INFO L138 BoogieDeclarations]: Found implementation of procedure erase_block [2022-11-19 08:36:57,940 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_pending [2022-11-19 08:36:57,940 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_pending [2022-11-19 08:36:57,940 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2022-11-19 08:36:57,941 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2022-11-19 08:36:57,941 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-19 08:36:57,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-19 08:36:57,941 INFO L130 BoogieDeclarations]: Found specification of procedure class_remove_file [2022-11-19 08:36:57,941 INFO L138 BoogieDeclarations]: Found implementation of procedure class_remove_file [2022-11-19 08:36:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_init [2022-11-19 08:36:57,942 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_init [2022-11-19 08:36:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_eba_read_leb [2022-11-19 08:36:57,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_eba_read_leb [2022-11-19 08:36:57,943 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_do_get_device_info [2022-11-19 08:36:57,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_do_get_device_info [2022-11-19 08:36:57,943 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_cdev_ioctl [2022-11-19 08:36:57,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_cdev_ioctl [2022-11-19 08:36:57,944 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_sysfs_close [2022-11-19 08:36:57,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_sysfs_close [2022-11-19 08:36:57,945 INFO L130 BoogieDeclarations]: Found specification of procedure vtbl_check [2022-11-19 08:36:57,945 INFO L138 BoogieDeclarations]: Found implementation of procedure vtbl_check [2022-11-19 08:36:57,945 INFO L130 BoogieDeclarations]: Found specification of procedure ubiblock_remove [2022-11-19 08:36:57,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ubiblock_remove [2022-11-19 08:36:57,946 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_read_vid_hdr [2022-11-19 08:36:57,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_read_vid_hdr [2022-11-19 08:36:57,946 INFO L130 BoogieDeclarations]: Found specification of procedure ctrl_cdev_ioctl [2022-11-19 08:36:57,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ctrl_cdev_ioctl [2022-11-19 08:36:57,947 INFO L130 BoogieDeclarations]: Found specification of procedure ubiblock_cleanup [2022-11-19 08:36:57,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ubiblock_cleanup [2022-11-19 08:36:57,947 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-11-19 08:36:57,948 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-11-19 08:36:57,948 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_compare_lebs [2022-11-19 08:36:57,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_compare_lebs [2022-11-19 08:36:57,948 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_wl_get_fm_peb [2022-11-19 08:36:57,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_wl_get_fm_peb [2022-11-19 08:36:57,948 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-19 08:36:57,949 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-19 08:36:57,949 INFO L130 BoogieDeclarations]: Found specification of procedure __init_rwsem [2022-11-19 08:36:57,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_rwsem [2022-11-19 08:36:57,950 INFO L130 BoogieDeclarations]: Found specification of procedure vol_cdev_ioctl [2022-11-19 08:36:57,950 INFO L138 BoogieDeclarations]: Found implementation of procedure vol_cdev_ioctl [2022-11-19 08:36:57,950 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_update_fastmap [2022-11-19 08:36:57,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_update_fastmap [2022-11-19 08:36:57,951 INFO L130 BoogieDeclarations]: Found specification of procedure is_error_sane [2022-11-19 08:36:57,951 INFO L138 BoogieDeclarations]: Found implementation of procedure is_error_sane [2022-11-19 08:36:57,951 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_write_vid_hdr [2022-11-19 08:36:57,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_write_vid_hdr [2022-11-19 08:36:57,952 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_vid_hdr [2022-11-19 08:36:57,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_vid_hdr [2022-11-19 08:36:57,953 INFO L130 BoogieDeclarations]: Found specification of procedure rb_next [2022-11-19 08:36:57,953 INFO L138 BoogieDeclarations]: Found implementation of procedure rb_next [2022-11-19 08:36:57,953 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_check_volume [2022-11-19 08:36:57,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_check_volume [2022-11-19 08:36:57,953 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 08:36:57,954 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_calc_data_len [2022-11-19 08:36:57,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_calc_data_len [2022-11-19 08:36:57,954 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_read_data [2022-11-19 08:36:57,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_read_data [2022-11-19 08:36:57,955 INFO L130 BoogieDeclarations]: Found specification of procedure dfs_file_write [2022-11-19 08:36:57,955 INFO L138 BoogieDeclarations]: Found implementation of procedure dfs_file_write [2022-11-19 08:36:57,956 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_wl_close [2022-11-19 08:36:57,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_wl_close [2022-11-19 08:36:57,956 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_free_vid_hdr [2022-11-19 08:36:57,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_free_vid_hdr [2022-11-19 08:36:57,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:36:57,957 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-19 08:36:57,957 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-19 08:36:57,957 INFO L130 BoogieDeclarations]: Found specification of procedure rb_link_node [2022-11-19 08:36:57,957 INFO L138 BoogieDeclarations]: Found implementation of procedure rb_link_node [2022-11-19 08:36:57,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_7 [2022-11-19 08:36:57,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_7 [2022-11-19 08:36:57,958 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_find_av [2022-11-19 08:36:57,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_find_av [2022-11-19 08:36:57,958 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-19 08:36:57,958 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-19 08:36:57,959 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2022-11-19 08:36:57,959 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2022-11-19 08:36:57,959 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-19 08:36:57,960 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-19 08:36:57,963 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_ubi_work [2022-11-19 08:36:57,963 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_ubi_work [2022-11-19 08:36:57,963 INFO L130 BoogieDeclarations]: Found specification of procedure do_sync_erase___0 [2022-11-19 08:36:57,964 INFO L138 BoogieDeclarations]: Found implementation of procedure do_sync_erase___0 [2022-11-19 08:36:57,965 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-19 08:36:57,965 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-19 08:36:57,966 INFO L130 BoogieDeclarations]: Found specification of procedure dev_attribute_show [2022-11-19 08:36:57,966 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_attribute_show [2022-11-19 08:36:57,967 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-19 08:36:57,971 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-19 08:36:57,972 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_ec_hdr [2022-11-19 08:36:57,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_ec_hdr [2022-11-19 08:36:57,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 08:36:57,972 INFO L130 BoogieDeclarations]: Found specification of procedure self_check_not_bad [2022-11-19 08:36:57,973 INFO L138 BoogieDeclarations]: Found implementation of procedure self_check_not_bad [2022-11-19 08:36:57,973 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-19 08:36:57,973 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-19 08:36:57,973 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_div_by_eb [2022-11-19 08:36:57,973 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_div_by_eb [2022-11-19 08:36:57,973 INFO L130 BoogieDeclarations]: Found specification of procedure find_dev_nolock [2022-11-19 08:36:57,973 INFO L138 BoogieDeclarations]: Found implementation of procedure find_dev_nolock [2022-11-19 08:36:57,974 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-11-19 08:36:57,974 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-11-19 08:36:57,974 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-19 08:36:57,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-19 08:36:57,974 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_calculate_reserved [2022-11-19 08:36:57,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_calculate_reserved [2022-11-19 08:36:57,975 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_debugfs_exit_dev [2022-11-19 08:36:57,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_debugfs_exit_dev [2022-11-19 08:36:57,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 08:36:57,975 INFO L130 BoogieDeclarations]: Found specification of procedure validate_vid_hdr [2022-11-19 08:36:57,975 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_vid_hdr [2022-11-19 08:36:57,975 INFO L130 BoogieDeclarations]: Found specification of procedure find_mean_wl_entry [2022-11-19 08:36:57,975 INFO L138 BoogieDeclarations]: Found implementation of procedure find_mean_wl_entry [2022-11-19 08:36:57,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:36:57,976 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2022-11-19 08:36:57,976 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2022-11-19 08:36:57,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 08:36:57,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 08:36:57,976 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_write_data [2022-11-19 08:36:57,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_write_data [2022-11-19 08:36:57,977 INFO L130 BoogieDeclarations]: Found specification of procedure prot_queue_add [2022-11-19 08:36:57,977 INFO L138 BoogieDeclarations]: Found implementation of procedure prot_queue_add [2022-11-19 08:36:57,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-19 08:36:57,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-19 08:36:57,977 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_open_volume_nm [2022-11-19 08:36:57,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_open_volume_nm [2022-11-19 08:36:57,978 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2022-11-19 08:36:57,978 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2022-11-19 08:36:57,978 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2022-11-19 08:36:57,978 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2022-11-19 08:36:57,978 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_write [2022-11-19 08:36:57,978 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_write [2022-11-19 08:36:57,979 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2022-11-19 08:36:57,979 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2022-11-19 08:36:57,979 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-19 08:36:57,979 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-19 08:36:57,979 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-19 08:36:57,979 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-19 08:36:57,980 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2022-11-19 08:36:57,980 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2022-11-19 08:36:57,980 INFO L130 BoogieDeclarations]: Found specification of procedure new_fm_vhdr [2022-11-19 08:36:57,980 INFO L138 BoogieDeclarations]: Found implementation of procedure new_fm_vhdr [2022-11-19 08:36:57,980 INFO L130 BoogieDeclarations]: Found specification of procedure yield [2022-11-19 08:36:57,980 INFO L138 BoogieDeclarations]: Found implementation of procedure yield [2022-11-19 08:36:57,980 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64_rem [2022-11-19 08:36:57,981 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64_rem [2022-11-19 08:36:57,981 INFO L130 BoogieDeclarations]: Found specification of procedure find_wl_entry [2022-11-19 08:36:57,981 INFO L138 BoogieDeclarations]: Found implementation of procedure find_wl_entry [2022-11-19 08:36:57,981 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoint [2022-11-19 08:36:57,981 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoint [2022-11-19 08:36:57,981 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dbg_chk_io [2022-11-19 08:36:57,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dbg_chk_io [2022-11-19 08:36:57,983 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_cur_bytes [2022-11-19 08:36:57,983 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_cur_bytes [2022-11-19 08:36:57,983 INFO L130 BoogieDeclarations]: Found specification of procedure __vmalloc [2022-11-19 08:36:57,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __vmalloc [2022-11-19 08:36:57,983 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_is_bad [2022-11-19 08:36:57,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_is_bad [2022-11-19 08:36:57,984 INFO L130 BoogieDeclarations]: Found specification of procedure vol_id2idx [2022-11-19 08:36:57,984 INFO L138 BoogieDeclarations]: Found implementation of procedure vol_id2idx [2022-11-19 08:36:57,984 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_attach_mtd_dev [2022-11-19 08:36:57,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_attach_mtd_dev [2022-11-19 08:36:57,984 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2022-11-19 08:36:57,985 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2022-11-19 08:36:57,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:36:57,985 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_update_reserved [2022-11-19 08:36:57,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_update_reserved [2022-11-19 08:36:57,985 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_wl_put_fm_peb [2022-11-19 08:36:57,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_wl_put_fm_peb [2022-11-19 08:36:57,986 INFO L130 BoogieDeclarations]: Found specification of procedure in_wl_tree [2022-11-19 08:36:57,986 INFO L138 BoogieDeclarations]: Found implementation of procedure in_wl_tree [2022-11-19 08:36:57,986 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_ai [2022-11-19 08:36:57,986 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_ai [2022-11-19 08:36:57,986 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2022-11-19 08:36:57,986 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2022-11-19 08:36:57,986 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_wl_get_peb [2022-11-19 08:36:57,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_wl_get_peb [2022-11-19 08:36:57,987 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-19 08:36:57,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-19 08:36:57,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:36:57,987 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_ai [2022-11-19 08:36:57,987 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_ai [2022-11-19 08:36:57,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:36:57,988 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2022-11-19 08:36:57,988 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2022-11-19 08:36:57,988 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 08:36:57,988 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_aeb [2022-11-19 08:36:57,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_aeb [2022-11-19 08:36:57,988 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_av [2022-11-19 08:36:57,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_av [2022-11-19 08:36:57,989 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-19 08:36:57,989 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-19 08:36:57,989 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-19 08:36:57,989 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-19 08:36:57,989 INFO L130 BoogieDeclarations]: Found specification of procedure write_leb [2022-11-19 08:36:57,990 INFO L138 BoogieDeclarations]: Found implementation of procedure write_leb [2022-11-19 08:36:57,990 INFO L130 BoogieDeclarations]: Found specification of procedure rb_erase [2022-11-19 08:36:57,990 INFO L138 BoogieDeclarations]: Found implementation of procedure rb_erase [2022-11-19 08:36:57,991 INFO L130 BoogieDeclarations]: Found specification of procedure _cond_resched [2022-11-19 08:36:57,991 INFO L138 BoogieDeclarations]: Found implementation of procedure _cond_resched [2022-11-19 08:36:57,992 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_erase [2022-11-19 08:36:57,992 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_erase [2022-11-19 08:36:57,992 INFO L130 BoogieDeclarations]: Found specification of procedure prot_queue_del [2022-11-19 08:36:57,992 INFO L138 BoogieDeclarations]: Found implementation of procedure prot_queue_del [2022-11-19 08:36:57,992 INFO L130 BoogieDeclarations]: Found specification of procedure validate_ec_hdr [2022-11-19 08:36:57,993 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_ec_hdr [2022-11-19 08:36:57,997 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_get_compat [2022-11-19 08:36:57,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_get_compat [2022-11-19 08:36:57,997 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dbg_chk_gen [2022-11-19 08:36:57,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dbg_chk_gen [2022-11-19 08:36:57,997 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_remove_av [2022-11-19 08:36:57,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_remove_av [2022-11-19 08:36:57,998 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-11-19 08:36:57,998 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-11-19 08:36:57,998 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_get_device [2022-11-19 08:36:57,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_get_device [2022-11-19 08:36:58,000 INFO L130 BoogieDeclarations]: Found specification of procedure rb_first [2022-11-19 08:36:58,000 INFO L138 BoogieDeclarations]: Found implementation of procedure rb_first [2022-11-19 08:36:58,000 INFO L130 BoogieDeclarations]: Found specification of procedure self_check_vid_hdr [2022-11-19 08:36:58,000 INFO L138 BoogieDeclarations]: Found implementation of procedure self_check_vid_hdr [2022-11-19 08:36:58,001 INFO L130 BoogieDeclarations]: Found specification of procedure device_unregister [2022-11-19 08:36:58,001 INFO L138 BoogieDeclarations]: Found implementation of procedure device_unregister [2022-11-19 08:36:58,001 INFO L130 BoogieDeclarations]: Found specification of procedure leb_write_lock [2022-11-19 08:36:58,001 INFO L138 BoogieDeclarations]: Found implementation of procedure leb_write_lock [2022-11-19 08:36:58,001 INFO L130 BoogieDeclarations]: Found specification of procedure kern_path [2022-11-19 08:36:58,001 INFO L138 BoogieDeclarations]: Found implementation of procedure kern_path [2022-11-19 08:36:58,001 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-19 08:36:58,002 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-19 08:36:58,002 INFO L130 BoogieDeclarations]: Found specification of procedure rb_insert_color [2022-11-19 08:36:58,002 INFO L138 BoogieDeclarations]: Found implementation of procedure rb_insert_color [2022-11-19 08:36:58,002 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_read [2022-11-19 08:36:58,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_read [2022-11-19 08:36:58,002 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-19 08:36:58,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-19 08:36:58,003 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_change_vtbl_record [2022-11-19 08:36:58,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_change_vtbl_record [2022-11-19 08:36:58,003 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 08:36:58,003 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 08:36:58,003 INFO L130 BoogieDeclarations]: Found specification of procedure vol_cdev_write [2022-11-19 08:36:58,003 INFO L138 BoogieDeclarations]: Found implementation of procedure vol_cdev_write [2022-11-19 08:36:58,003 INFO L130 BoogieDeclarations]: Found specification of procedure uif_close [2022-11-19 08:36:58,004 INFO L138 BoogieDeclarations]: Found implementation of procedure uif_close [2022-11-19 08:36:58,004 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2022-11-19 08:36:58,004 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2022-11-19 08:36:58,004 INFO L130 BoogieDeclarations]: Found specification of procedure ubiblock_remove_all [2022-11-19 08:36:58,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ubiblock_remove_all [2022-11-19 08:36:58,004 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_eba_atomic_leb_change [2022-11-19 08:36:58,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_eba_atomic_leb_change [2022-11-19 08:36:58,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:36:58,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:36:58,005 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-19 08:36:58,005 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-19 08:36:58,005 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_ro_mode [2022-11-19 08:36:58,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_ro_mode [2022-11-19 08:36:58,006 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-19 08:36:58,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-19 08:36:58,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-19 08:36:58,006 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-19 08:36:58,006 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2022-11-19 08:36:58,006 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2022-11-19 08:36:58,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 08:36:58,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 08:36:58,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 08:36:58,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 08:36:58,007 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-19 08:36:58,007 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-19 08:36:58,007 INFO L130 BoogieDeclarations]: Found specification of procedure scan_all [2022-11-19 08:36:58,008 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_all [2022-11-19 08:36:58,008 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-11-19 08:36:58,008 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-11-19 08:36:58,008 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_flash [2022-11-19 08:36:58,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_flash [2022-11-19 08:36:58,008 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_is_fm_block [2022-11-19 08:36:58,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_is_fm_block [2022-11-19 08:36:58,009 INFO L130 BoogieDeclarations]: Found specification of procedure blk_fetch_request [2022-11-19 08:36:58,009 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_fetch_request [2022-11-19 08:36:58,009 INFO L130 BoogieDeclarations]: Found specification of procedure leb_write_unlock [2022-11-19 08:36:58,009 INFO L138 BoogieDeclarations]: Found implementation of procedure leb_write_unlock [2022-11-19 08:36:58,009 INFO L130 BoogieDeclarations]: Found specification of procedure device_register [2022-11-19 08:36:58,009 INFO L138 BoogieDeclarations]: Found implementation of procedure device_register [2022-11-19 08:36:58,009 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_sync_erase [2022-11-19 08:36:58,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_sync_erase [2022-11-19 08:36:58,010 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-19 08:36:58,010 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-19 08:36:58,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-19 08:36:58,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-19 08:36:58,010 INFO L130 BoogieDeclarations]: Found specification of procedure idx2vol_id [2022-11-19 08:36:58,011 INFO L138 BoogieDeclarations]: Found implementation of procedure idx2vol_id [2022-11-19 08:36:58,011 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2022-11-19 08:36:58,011 INFO L138 BoogieDeclarations]: Found implementation of procedure strsep [2022-11-19 08:36:58,011 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2022-11-19 08:36:58,011 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2022-11-19 08:36:58,011 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2022-11-19 08:36:58,011 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2022-11-19 08:36:58,012 INFO L130 BoogieDeclarations]: Found specification of procedure vol_attribute_show [2022-11-19 08:36:58,012 INFO L138 BoogieDeclarations]: Found implementation of procedure vol_attribute_show [2022-11-19 08:36:58,012 INFO L130 BoogieDeclarations]: Found specification of procedure self_check_peb_ec_hdr [2022-11-19 08:36:58,012 INFO L138 BoogieDeclarations]: Found implementation of procedure self_check_peb_ec_hdr [2022-11-19 08:36:58,012 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_vol_info [2022-11-19 08:36:58,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_vol_info [2022-11-19 08:36:58,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 08:36:58,013 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 08:36:58,013 INFO L130 BoogieDeclarations]: Found specification of procedure get_peb_for_wl [2022-11-19 08:36:58,013 INFO L138 BoogieDeclarations]: Found implementation of procedure get_peb_for_wl [2022-11-19 08:36:58,013 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 08:36:58,013 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 08:36:58,013 INFO L130 BoogieDeclarations]: Found specification of procedure path_put [2022-11-19 08:36:58,014 INFO L138 BoogieDeclarations]: Found implementation of procedure path_put [2022-11-19 08:36:58,014 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR_OR_NULL [2022-11-19 08:36:58,014 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR_OR_NULL [2022-11-19 08:36:58,014 INFO L130 BoogieDeclarations]: Found specification of procedure blocking_notifier_call_chain [2022-11-19 08:36:58,014 INFO L138 BoogieDeclarations]: Found implementation of procedure blocking_notifier_call_chain [2022-11-19 08:36:58,014 INFO L130 BoogieDeclarations]: Found specification of procedure create_vtbl [2022-11-19 08:36:58,014 INFO L138 BoogieDeclarations]: Found implementation of procedure create_vtbl [2022-11-19 08:36:58,015 INFO L130 BoogieDeclarations]: Found specification of procedure prandom_u32 [2022-11-19 08:36:58,015 INFO L138 BoogieDeclarations]: Found implementation of procedure prandom_u32 [2022-11-19 08:36:58,015 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-19 08:36:58,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-19 08:36:58,015 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64 [2022-11-19 08:36:58,015 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64 [2022-11-19 08:36:58,015 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2022-11-19 08:36:58,016 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2022-11-19 08:36:58,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:36:58,016 INFO L130 BoogieDeclarations]: Found specification of procedure do_work [2022-11-19 08:36:58,016 INFO L138 BoogieDeclarations]: Found implementation of procedure do_work [2022-11-19 08:36:58,016 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 08:36:58,016 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 08:36:58,017 INFO L130 BoogieDeclarations]: Found specification of procedure self_check_in_wl_tree [2022-11-19 08:36:58,017 INFO L138 BoogieDeclarations]: Found implementation of procedure self_check_in_wl_tree [2022-11-19 08:36:58,017 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_open_volume [2022-11-19 08:36:58,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_open_volume [2022-11-19 08:36:58,017 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_check_pattern [2022-11-19 08:36:58,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_check_pattern [2022-11-19 08:36:58,017 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_is_bitflip [2022-11-19 08:36:58,018 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_is_bitflip [2022-11-19 08:36:58,018 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_eba_write_leb [2022-11-19 08:36:58,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_eba_write_leb [2022-11-19 08:36:58,018 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2022-11-19 08:36:58,018 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2022-11-19 08:36:58,018 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-11-19 08:36:58,018 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-11-19 08:36:58,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:36:58,019 INFO L130 BoogieDeclarations]: Found specification of procedure vol_cdev_fsync [2022-11-19 08:36:58,019 INFO L138 BoogieDeclarations]: Found implementation of procedure vol_cdev_fsync [2022-11-19 08:36:58,019 INFO L130 BoogieDeclarations]: Found specification of procedure get_mtd_device [2022-11-19 08:36:58,019 INFO L138 BoogieDeclarations]: Found implementation of procedure get_mtd_device [2022-11-19 08:36:58,019 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_put_device [2022-11-19 08:36:58,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_put_device [2022-11-19 08:36:58,020 INFO L130 BoogieDeclarations]: Found specification of procedure assign_aeb_to_av [2022-11-19 08:36:58,020 INFO L138 BoogieDeclarations]: Found implementation of procedure assign_aeb_to_av [2022-11-19 08:36:58,020 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-19 08:36:58,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-19 08:36:58,020 INFO L130 BoogieDeclarations]: Found specification of procedure clear_update_marker [2022-11-19 08:36:58,020 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_update_marker [2022-11-19 08:36:58,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-19 08:36:58,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-19 08:36:58,021 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2022-11-19 08:36:58,021 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2022-11-19 08:36:58,021 INFO L130 BoogieDeclarations]: Found specification of procedure scan_peb [2022-11-19 08:36:58,021 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_peb [2022-11-19 08:36:58,021 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2022-11-19 08:36:58,022 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2022-11-19 08:36:58,022 INFO L130 BoogieDeclarations]: Found specification of procedure validate_vid_hdr___0 [2022-11-19 08:36:58,022 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_vid_hdr___0 [2022-11-19 08:36:58,022 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_zalloc_vid_hdr___3 [2022-11-19 08:36:58,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_zalloc_vid_hdr___3 [2022-11-19 08:36:58,022 INFO L130 BoogieDeclarations]: Found specification of procedure ubiblock_create [2022-11-19 08:36:58,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ubiblock_create [2022-11-19 08:36:58,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 08:36:58,023 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_zalloc_vid_hdr___0 [2022-11-19 08:36:58,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_zalloc_vid_hdr___0 [2022-11-19 08:36:58,023 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-19 08:36:58,023 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-19 08:36:58,023 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_zalloc_vid_hdr___4 [2022-11-19 08:36:58,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_zalloc_vid_hdr___4 [2022-11-19 08:36:58,024 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_self_check_all_ff [2022-11-19 08:36:58,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_self_check_all_ff [2022-11-19 08:36:58,024 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2022-11-19 08:36:58,024 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2022-11-19 08:36:58,024 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_is_eccerr [2022-11-19 08:36:58,024 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_is_eccerr [2022-11-19 08:36:58,025 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_close_volume [2022-11-19 08:36:58,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_close_volume [2022-11-19 08:36:58,025 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_wl_put_peb [2022-11-19 08:36:58,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_wl_put_peb [2022-11-19 08:36:58,025 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-19 08:36:58,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-19 08:36:58,026 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2022-11-19 08:36:58,026 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2022-11-19 08:36:58,026 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-19 08:36:58,026 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-19 08:36:58,026 INFO L130 BoogieDeclarations]: Found specification of procedure get_capacity [2022-11-19 08:36:58,026 INFO L138 BoogieDeclarations]: Found implementation of procedure get_capacity [2022-11-19 08:36:58,026 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-19 08:36:58,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-19 08:36:58,027 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-19 08:36:58,027 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-19 08:36:58,027 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_wear_leveling [2022-11-19 08:36:58,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_wear_leveling [2022-11-19 08:36:58,027 INFO L130 BoogieDeclarations]: Found specification of procedure leb_read_unlock [2022-11-19 08:36:58,027 INFO L138 BoogieDeclarations]: Found implementation of procedure leb_read_unlock [2022-11-19 08:36:58,028 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-19 08:36:58,028 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-19 08:36:58,028 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_next_sqnum [2022-11-19 08:36:58,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_next_sqnum [2022-11-19 08:36:58,028 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_read_ec_hdr [2022-11-19 08:36:58,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_read_ec_hdr [2022-11-19 08:36:58,028 INFO L130 BoogieDeclarations]: Found specification of procedure bio_has_data [2022-11-19 08:36:58,029 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_has_data [2022-11-19 08:36:58,029 INFO L130 BoogieDeclarations]: Found specification of procedure ltree_add_entry [2022-11-19 08:36:58,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ltree_add_entry [2022-11-19 08:36:58,029 INFO L130 BoogieDeclarations]: Found specification of procedure volume_sysfs_close [2022-11-19 08:36:58,029 INFO L138 BoogieDeclarations]: Found implementation of procedure volume_sysfs_close [2022-11-19 08:36:58,029 INFO L130 BoogieDeclarations]: Found specification of procedure revoke_exclusive [2022-11-19 08:36:58,029 INFO L138 BoogieDeclarations]: Found implementation of procedure revoke_exclusive [2022-11-19 08:36:58,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-19 08:36:58,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-19 08:36:58,030 INFO L130 BoogieDeclarations]: Found specification of procedure return_unused_pool_pebs [2022-11-19 08:36:58,030 INFO L138 BoogieDeclarations]: Found implementation of procedure return_unused_pool_pebs [2022-11-19 08:36:58,030 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-19 08:36:58,030 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-19 08:36:58,030 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2022-11-19 08:36:58,031 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2022-11-19 08:36:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_vtbl_record [2022-11-19 08:36:58,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_vtbl_record [2022-11-19 08:36:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2022-11-19 08:36:58,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2022-11-19 08:36:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure erase_worker [2022-11-19 08:36:58,031 INFO L138 BoogieDeclarations]: Found implementation of procedure erase_worker [2022-11-19 08:36:58,032 INFO L130 BoogieDeclarations]: Found specification of procedure do_sync_erase [2022-11-19 08:36:58,032 INFO L138 BoogieDeclarations]: Found implementation of procedure do_sync_erase [2022-11-19 08:36:58,032 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_add_to_av [2022-11-19 08:36:58,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_add_to_av [2022-11-19 08:36:58,032 INFO L130 BoogieDeclarations]: Found specification of procedure get_device [2022-11-19 08:36:58,032 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device [2022-11-19 08:36:58,033 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2022-11-19 08:36:58,033 INFO L138 BoogieDeclarations]: Found implementation of procedure strnlen [2022-11-19 08:36:58,033 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 08:36:58,033 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 08:36:58,033 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2022-11-19 08:36:58,033 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2022-11-19 08:36:58,033 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2022-11-19 08:36:58,034 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2022-11-19 08:36:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:36:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure is_power_of_2 [2022-11-19 08:36:58,034 INFO L138 BoogieDeclarations]: Found implementation of procedure is_power_of_2 [2022-11-19 08:36:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_remove_volume [2022-11-19 08:36:58,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_remove_volume [2022-11-19 08:36:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-19 08:36:58,035 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-19 08:36:58,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 08:36:58,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 08:36:58,035 INFO L130 BoogieDeclarations]: Found specification of procedure ltree_lookup [2022-11-19 08:36:58,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ltree_lookup [2022-11-19 08:36:58,035 INFO L130 BoogieDeclarations]: Found specification of procedure ubiblock_getgeo [2022-11-19 08:36:58,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ubiblock_getgeo [2022-11-19 08:36:58,036 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2022-11-19 08:36:58,036 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2022-11-19 08:36:58,036 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2022-11-19 08:36:58,036 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2022-11-19 08:36:58,036 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-19 08:36:58,036 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-19 08:36:58,037 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_wl_flush [2022-11-19 08:36:58,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_wl_flush [2022-11-19 08:36:58,037 INFO L130 BoogieDeclarations]: Found specification of procedure add_to_list [2022-11-19 08:36:58,037 INFO L138 BoogieDeclarations]: Found implementation of procedure add_to_list [2022-11-19 08:36:58,037 INFO L130 BoogieDeclarations]: Found specification of procedure self_check_volumes [2022-11-19 08:36:58,037 INFO L138 BoogieDeclarations]: Found implementation of procedure self_check_volumes [2022-11-19 08:36:58,037 INFO L130 BoogieDeclarations]: Found specification of procedure kill_volumes [2022-11-19 08:36:58,038 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_volumes [2022-11-19 08:36:58,038 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dbg_is_bgt_disabled [2022-11-19 08:36:58,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dbg_is_bgt_disabled [2022-11-19 08:36:58,038 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_notify_all [2022-11-19 08:36:58,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_notify_all [2022-11-19 08:36:58,038 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2022-11-19 08:36:58,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2022-11-19 08:36:58,039 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_write [2022-11-19 08:36:58,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_write [2022-11-19 08:36:58,039 INFO L130 BoogieDeclarations]: Found specification of procedure imajor [2022-11-19 08:36:58,039 INFO L138 BoogieDeclarations]: Found implementation of procedure imajor [2022-11-19 08:36:58,039 INFO L130 BoogieDeclarations]: Found specification of procedure scan_pool [2022-11-19 08:36:58,039 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_pool [2022-11-19 08:36:58,040 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-19 08:36:58,040 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-19 08:36:58,040 INFO L130 BoogieDeclarations]: Found specification of procedure add_aeb [2022-11-19 08:36:58,040 INFO L138 BoogieDeclarations]: Found implementation of procedure add_aeb [2022-11-19 08:36:58,040 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_read [2022-11-19 08:36:58,040 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_read [2022-11-19 08:36:58,040 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_debugfs_exit [2022-11-19 08:36:58,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_debugfs_exit [2022-11-19 08:36:58,041 INFO L130 BoogieDeclarations]: Found specification of procedure get_exclusive [2022-11-19 08:36:58,041 INFO L138 BoogieDeclarations]: Found implementation of procedure get_exclusive [2022-11-19 08:36:58,041 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_major2num [2022-11-19 08:36:58,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_major2num [2022-11-19 08:36:58,041 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_do_get_volume_info [2022-11-19 08:36:58,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_do_get_volume_info [2022-11-19 08:36:58,042 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_free [2022-11-19 08:36:58,042 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_free [2022-11-19 08:36:58,042 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2022-11-19 08:36:58,042 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2022-11-19 08:36:58,042 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-19 08:36:58,042 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-19 08:36:58,042 INFO L130 BoogieDeclarations]: Found specification of procedure no_llseek [2022-11-19 08:36:58,043 INFO L138 BoogieDeclarations]: Found implementation of procedure no_llseek [2022-11-19 08:36:58,043 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_get_volume_info [2022-11-19 08:36:58,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_get_volume_info [2022-11-19 08:36:58,043 INFO L130 BoogieDeclarations]: Found specification of procedure tree_destroy [2022-11-19 08:36:58,043 INFO L138 BoogieDeclarations]: Found implementation of procedure tree_destroy [2022-11-19 08:36:58,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:36:58,043 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_write_ec_hdr [2022-11-19 08:36:58,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_write_ec_hdr [2022-11-19 08:36:58,044 INFO L130 BoogieDeclarations]: Found specification of procedure find_anchor_wl_entry [2022-11-19 08:36:58,044 INFO L138 BoogieDeclarations]: Found implementation of procedure find_anchor_wl_entry [2022-11-19 08:36:58,044 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-11-19 08:36:58,044 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-11-19 08:36:58,044 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-11-19 08:36:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-11-19 08:36:58,045 INFO L130 BoogieDeclarations]: Found specification of procedure ubiblock_notify [2022-11-19 08:36:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ubiblock_notify [2022-11-19 08:36:58,045 INFO L130 BoogieDeclarations]: Found specification of procedure wl_tree_add [2022-11-19 08:36:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure wl_tree_add [2022-11-19 08:37:00,624 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:37:00,634 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:37:01,092 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 08:43:42,085 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:43:49,490 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:43:49,490 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 08:43:49,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:43:49 BoogieIcfgContainer [2022-11-19 08:43:49,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:43:49,516 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:43:49,516 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:43:49,524 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:43:49,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:36:46" (1/3) ... [2022-11-19 08:43:49,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5409e782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:43:49, skipping insertion in model container [2022-11-19 08:43:49,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:54" (2/3) ... [2022-11-19 08:43:49,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5409e782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:43:49, skipping insertion in model container [2022-11-19 08:43:49,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:43:49" (3/3) ... [2022-11-19 08:43:49,529 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--mtd--ubi--ubi.ko-entry_point.cil.out.i [2022-11-19 08:43:49,556 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:43:49,556 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:43:49,787 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:43:49,801 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@194faea3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:43:49,802 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:43:49,836 INFO L276 IsEmpty]: Start isEmpty. Operand has 7883 states, 4852 states have (on average 1.362118713932399) internal successors, (6609), 5127 states have internal predecessors, (6609), 2765 states have call successors, (2765), 265 states have call predecessors, (2765), 264 states have return successors, (2735), 2680 states have call predecessors, (2735), 2735 states have call successors, (2735) [2022-11-19 08:43:49,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-11-19 08:43:49,903 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:43:49,905 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:43:49,905 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:43:49,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:43:49,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1920717173, now seen corresponding path program 1 times [2022-11-19 08:43:49,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:43:49,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641766485] [2022-11-19 08:43:49,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:43:49,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:43:51,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:43:52,601 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2022-11-19 08:43:52,601 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:43:52,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641766485] [2022-11-19 08:43:52,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641766485] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:43:52,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:43:52,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:43:52,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234879599] [2022-11-19 08:43:52,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:43:52,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:43:52,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:43:52,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:43:52,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:43:52,704 INFO L87 Difference]: Start difference. First operand has 7883 states, 4852 states have (on average 1.362118713932399) internal successors, (6609), 5127 states have internal predecessors, (6609), 2765 states have call successors, (2765), 265 states have call predecessors, (2765), 264 states have return successors, (2735), 2680 states have call predecessors, (2735), 2735 states have call successors, (2735) 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, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-19 08:43:55,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:43:59,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:44:01,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:44:03,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:44:09,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:44:18,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:44:18,637 INFO L93 Difference]: Finished difference Result 22433 states and 34963 transitions. [2022-11-19 08:44:18,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:44:18,640 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, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 277 [2022-11-19 08:44:18,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:44:18,799 INFO L225 Difference]: With dead ends: 22433 [2022-11-19 08:44:18,799 INFO L226 Difference]: Without dead ends: 14545 [2022-11-19 08:44:18,921 INFO L412 NwaCegarLoop]: 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 [2022-11-19 08:44:18,931 INFO L413 NwaCegarLoop]: 15314 mSDtfsCounter, 10388 mSDsluCounter, 11369 mSDsCounter, 0 mSdLazyCounter, 1435 mSolverCounterSat, 14 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10388 SdHoareTripleChecker+Valid, 26683 SdHoareTripleChecker+Invalid, 1453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1435 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:44:18,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10388 Valid, 26683 Invalid, 1453 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [14 Valid, 1435 Invalid, 4 Unknown, 0 Unchecked, 24.7s Time] [2022-11-19 08:44:18,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14545 states. [2022-11-19 08:44:20,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14545 to 14517. [2022-11-19 08:44:20,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14517 states, 8972 states have (on average 1.3571110120374499) internal successors, (12176), 9433 states have internal predecessors, (12176), 5041 states have call successors, (5041), 505 states have call predecessors, (5041), 503 states have return successors, (5058), 4928 states have call predecessors, (5058), 5039 states have call successors, (5058) [2022-11-19 08:44:20,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14517 states to 14517 states and 22275 transitions. [2022-11-19 08:44:20,732 INFO L78 Accepts]: Start accepts. Automaton has 14517 states and 22275 transitions. Word has length 277 [2022-11-19 08:44:20,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:44:20,734 INFO L495 AbstractCegarLoop]: Abstraction has 14517 states and 22275 transitions. [2022-11-19 08:44:20,734 INFO L496 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, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-19 08:44:20,735 INFO L276 IsEmpty]: Start isEmpty. Operand 14517 states and 22275 transitions. [2022-11-19 08:44:20,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-11-19 08:44:20,764 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:44:20,764 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:44:20,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:44:20,765 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:44:20,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:44:20,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1055681214, now seen corresponding path program 1 times [2022-11-19 08:44:20,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:44:20,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328157236] [2022-11-19 08:44:20,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:44:20,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:44:21,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:44:22,520 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2022-11-19 08:44:22,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:44:22,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328157236] [2022-11-19 08:44:22,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328157236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:44:22,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:44:22,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:44:22,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452227809] [2022-11-19 08:44:22,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:44:22,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:44:22,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:44:22,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:44:22,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:44:22,532 INFO L87 Difference]: Start difference. First operand 14517 states and 22275 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-11-19 08:44:24,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:44:27,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:44:32,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:44:41,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:44:41,091 INFO L93 Difference]: Finished difference Result 35316 states and 53940 transitions. [2022-11-19 08:44:41,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:44:41,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 299 [2022-11-19 08:44:41,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:44:41,268 INFO L225 Difference]: With dead ends: 35316 [2022-11-19 08:44:41,268 INFO L226 Difference]: Without dead ends: 20876 [2022-11-19 08:44:41,479 INFO L412 NwaCegarLoop]: 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 [2022-11-19 08:44:41,488 INFO L413 NwaCegarLoop]: 12532 mSDtfsCounter, 11145 mSDsluCounter, 7533 mSDsCounter, 0 mSdLazyCounter, 1068 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11150 SdHoareTripleChecker+Valid, 20065 SdHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1068 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:44:41,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11150 Valid, 20065 Invalid, 1071 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1068 Invalid, 3 Unknown, 0 Unchecked, 17.0s Time] [2022-11-19 08:44:41,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20876 states. [2022-11-19 08:44:43,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20876 to 20862. [2022-11-19 08:44:43,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20862 states, 12745 states have (on average 1.3473519027069438) internal successors, (17172), 13442 states have internal predecessors, (17172), 7287 states have call successors, (7287), 832 states have call predecessors, (7287), 829 states have return successors, (7300), 7115 states have call predecessors, (7300), 7285 states have call successors, (7300) [2022-11-19 08:44:43,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20862 states to 20862 states and 31759 transitions. [2022-11-19 08:44:43,590 INFO L78 Accepts]: Start accepts. Automaton has 20862 states and 31759 transitions. Word has length 299 [2022-11-19 08:44:43,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:44:43,593 INFO L495 AbstractCegarLoop]: Abstraction has 20862 states and 31759 transitions. [2022-11-19 08:44:43,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-11-19 08:44:43,593 INFO L276 IsEmpty]: Start isEmpty. Operand 20862 states and 31759 transitions. [2022-11-19 08:44:43,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2022-11-19 08:44:43,605 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:44:43,606 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 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] [2022-11-19 08:44:43,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:44:43,607 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:44:43,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:44:43,619 INFO L85 PathProgramCache]: Analyzing trace with hash 14558631, now seen corresponding path program 1 times [2022-11-19 08:44:43,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:44:43,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784721293] [2022-11-19 08:44:43,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:44:43,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:44:44,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:44:45,259 INFO L134 CoverageAnalysis]: Checked inductivity of 3123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3123 trivial. 0 not checked. [2022-11-19 08:44:45,259 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:44:45,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784721293] [2022-11-19 08:44:45,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784721293] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:44:45,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:44:45,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:44:45,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488712382] [2022-11-19 08:44:45,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:44:45,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:44:45,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:44:45,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:44:45,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:44:45,263 INFO L87 Difference]: Start difference. First operand 20862 states and 31759 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-19 08:44:47,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:44:50,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:44:52,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:44:57,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:44:59,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:45:01,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:45:09,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:45:10,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:45:10,528 INFO L93 Difference]: Finished difference Result 62326 states and 94888 transitions. [2022-11-19 08:45:10,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:45:10,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 308 [2022-11-19 08:45:10,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:45:10,964 INFO L225 Difference]: With dead ends: 62326 [2022-11-19 08:45:10,965 INFO L226 Difference]: Without dead ends: 41541 [2022-11-19 08:45:11,089 INFO L412 NwaCegarLoop]: 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 [2022-11-19 08:45:11,094 INFO L413 NwaCegarLoop]: 16125 mSDtfsCounter, 11128 mSDsluCounter, 10693 mSDsCounter, 0 mSdLazyCounter, 1451 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11128 SdHoareTripleChecker+Valid, 26818 SdHoareTripleChecker+Invalid, 1455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1451 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:45:11,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11128 Valid, 26818 Invalid, 1455 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1451 Invalid, 3 Unknown, 0 Unchecked, 23.5s Time] [2022-11-19 08:45:11,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41541 states. [2022-11-19 08:45:15,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41541 to 41537. [2022-11-19 08:45:15,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41537 states, 25381 states have (on average 1.347898033962413) internal successors, (34211), 26774 states have internal predecessors, (34211), 14500 states have call successors, (14500), 1660 states have call predecessors, (14500), 1655 states have return successors, (14528), 14158 states have call predecessors, (14528), 14498 states have call successors, (14528) [2022-11-19 08:45:15,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41537 states to 41537 states and 63239 transitions. [2022-11-19 08:45:15,964 INFO L78 Accepts]: Start accepts. Automaton has 41537 states and 63239 transitions. Word has length 308 [2022-11-19 08:45:15,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:45:15,970 INFO L495 AbstractCegarLoop]: Abstraction has 41537 states and 63239 transitions. [2022-11-19 08:45:15,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-19 08:45:15,971 INFO L276 IsEmpty]: Start isEmpty. Operand 41537 states and 63239 transitions. [2022-11-19 08:45:15,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2022-11-19 08:45:15,998 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:45:15,999 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 41, 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] [2022-11-19 08:45:15,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:45:16,000 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:45:16,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:45:16,001 INFO L85 PathProgramCache]: Analyzing trace with hash 554663465, now seen corresponding path program 1 times [2022-11-19 08:45:16,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:45:16,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314351980] [2022-11-19 08:45:16,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:45:16,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:45:16,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:45:18,311 INFO L134 CoverageAnalysis]: Checked inductivity of 3290 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3283 trivial. 0 not checked. [2022-11-19 08:45:18,311 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:45:18,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314351980] [2022-11-19 08:45:18,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314351980] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:45:18,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:45:18,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:45:18,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582803856] [2022-11-19 08:45:18,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:45:18,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:45:18,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:45:18,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:45:18,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:45:18,314 INFO L87 Difference]: Start difference. First operand 41537 states and 63239 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-19 08:45:20,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:45:24,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:45:28,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:45:31,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:45:40,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:45:40,140 INFO L93 Difference]: Finished difference Result 124453 states and 189487 transitions. [2022-11-19 08:45:40,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:45:40,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) Word has length 333 [2022-11-19 08:45:40,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:45:40,670 INFO L225 Difference]: With dead ends: 124453 [2022-11-19 08:45:40,670 INFO L226 Difference]: Without dead ends: 82993 [2022-11-19 08:45:40,912 INFO L412 NwaCegarLoop]: 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 [2022-11-19 08:45:40,913 INFO L413 NwaCegarLoop]: 13289 mSDtfsCounter, 11232 mSDsluCounter, 10588 mSDsCounter, 0 mSdLazyCounter, 1253 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11235 SdHoareTripleChecker+Valid, 23877 SdHoareTripleChecker+Invalid, 1257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1253 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:45:40,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11235 Valid, 23877 Invalid, 1257 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1253 Invalid, 3 Unknown, 0 Unchecked, 18.0s Time] [2022-11-19 08:45:41,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82993 states. [2022-11-19 08:45:47,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82993 to 82981. [2022-11-19 08:45:47,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82981 states, 50714 states have (on average 1.3480695665891076) internal successors, (68366), 53499 states have internal predecessors, (68366), 28960 states have call successors, (28960), 3315 states have call predecessors, (28960), 3306 states have return successors, (29018), 28278 states have call predecessors, (29018), 28958 states have call successors, (29018) [2022-11-19 08:45:48,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82981 states to 82981 states and 126344 transitions. [2022-11-19 08:45:48,965 INFO L78 Accepts]: Start accepts. Automaton has 82981 states and 126344 transitions. Word has length 333 [2022-11-19 08:45:48,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:45:48,966 INFO L495 AbstractCegarLoop]: Abstraction has 82981 states and 126344 transitions. [2022-11-19 08:45:48,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-19 08:45:48,967 INFO L276 IsEmpty]: Start isEmpty. Operand 82981 states and 126344 transitions. [2022-11-19 08:45:48,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2022-11-19 08:45:48,994 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:45:48,995 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:45:48,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:45:48,995 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:45:48,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:45:48,996 INFO L85 PathProgramCache]: Analyzing trace with hash -100747823, now seen corresponding path program 1 times [2022-11-19 08:45:48,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:45:48,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564278653] [2022-11-19 08:45:48,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:45:48,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:45:49,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:45:50,605 INFO L134 CoverageAnalysis]: Checked inductivity of 2818 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2818 trivial. 0 not checked. [2022-11-19 08:45:50,605 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:45:50,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564278653] [2022-11-19 08:45:50,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564278653] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:45:50,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:45:50,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:45:50,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255054168] [2022-11-19 08:45:50,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:45:50,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:45:50,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:45:50,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:45:50,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:45:50,612 INFO L87 Difference]: Start difference. First operand 82981 states and 126344 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-19 08:45:52,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:45:54,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:45:58,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:46:02,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:46:12,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:46:13,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:46:13,986 INFO L93 Difference]: Finished difference Result 165473 states and 251865 transitions. [2022-11-19 08:46:13,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:46:13,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 334 [2022-11-19 08:46:13,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:46:15,024 INFO L225 Difference]: With dead ends: 165473 [2022-11-19 08:46:15,025 INFO L226 Difference]: Without dead ends: 82569 [2022-11-19 08:46:15,444 INFO L412 NwaCegarLoop]: 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 [2022-11-19 08:46:15,445 INFO L413 NwaCegarLoop]: 13765 mSDtfsCounter, 11140 mSDsluCounter, 7420 mSDsCounter, 0 mSdLazyCounter, 1167 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11147 SdHoareTripleChecker+Valid, 21185 SdHoareTripleChecker+Invalid, 1171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1167 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:46:15,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11147 Valid, 21185 Invalid, 1171 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1167 Invalid, 3 Unknown, 0 Unchecked, 18.5s Time] [2022-11-19 08:46:15,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82569 states. [2022-11-19 08:46:22,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82569 to 82517. [2022-11-19 08:46:22,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82517 states, 50406 states have (on average 1.347200730071817) internal successors, (67907), 53175 states have internal predecessors, (67907), 28796 states have call successors, (28796), 3323 states have call predecessors, (28796), 3314 states have return successors, (28826), 28122 states have call predecessors, (28826), 28794 states have call successors, (28826) [2022-11-19 08:46:24,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82517 states to 82517 states and 125529 transitions. [2022-11-19 08:46:24,240 INFO L78 Accepts]: Start accepts. Automaton has 82517 states and 125529 transitions. Word has length 334 [2022-11-19 08:46:24,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:46:24,242 INFO L495 AbstractCegarLoop]: Abstraction has 82517 states and 125529 transitions. [2022-11-19 08:46:24,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-19 08:46:24,243 INFO L276 IsEmpty]: Start isEmpty. Operand 82517 states and 125529 transitions. [2022-11-19 08:46:24,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2022-11-19 08:46:24,282 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:46:24,282 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 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] [2022-11-19 08:46:24,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:46:24,283 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:46:24,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:46:24,284 INFO L85 PathProgramCache]: Analyzing trace with hash -629104393, now seen corresponding path program 1 times [2022-11-19 08:46:24,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:46:24,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479752460] [2022-11-19 08:46:24,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:46:24,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:46:24,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat