./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1641a488-4d7b-4a75-a98f-6ed308806fee/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1641a488-4d7b-4a75-a98f-6ed308806fee/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1641a488-4d7b-4a75-a98f-6ed308806fee/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1641a488-4d7b-4a75-a98f-6ed308806fee/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1641a488-4d7b-4a75-a98f-6ed308806fee/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1641a488-4d7b-4a75-a98f-6ed308806fee/bin/utaipan-EQgc7hIp5V --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c727ee56ff8cf558c3dc08b64ebc267261ea17bdfb88e50734daf71ad89adc7d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:07:39,919 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:07:39,921 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:07:39,973 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:07:39,974 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:07:39,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:07:39,981 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:07:39,986 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:07:39,989 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:07:39,996 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:07:39,998 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:07:40,000 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:07:40,000 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:07:40,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:07:40,006 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:07:40,011 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:07:40,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:07:40,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:07:40,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:07:40,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:07:40,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:07:40,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:07:40,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:07:40,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:07:40,040 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:07:40,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:07:40,041 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:07:40,044 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:07:40,044 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:07:40,046 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:07:40,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:07:40,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:07:40,051 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:07:40,052 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:07:40,054 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:07:40,054 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:07:40,055 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:07:40,055 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:07:40,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:07:40,057 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:07:40,057 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:07:40,058 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1641a488-4d7b-4a75-a98f-6ed308806fee/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 02:07:40,107 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:07:40,107 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:07:40,108 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:07:40,108 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:07:40,109 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:07:40,109 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:07:40,109 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:07:40,110 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:07:40,110 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:07:40,110 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:07:40,110 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:07:40,111 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:07:40,111 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:07:40,111 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:07:40,111 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:07:40,112 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:07:40,112 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:07:40,112 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:07:40,113 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:07:40,113 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:07:40,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:07:40,114 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:07:40,114 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:07:40,114 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:07:40,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:07:40,115 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:07:40,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:07:40,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:07:40,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:07:40,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:07:40,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:07:40,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:07:40,117 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:07:40,117 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:07:40,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:07:40,117 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:07:40,118 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:07:40,118 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:07:40,118 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1641a488-4d7b-4a75-a98f-6ed308806fee/bin/utaipan-EQgc7hIp5V/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1641a488-4d7b-4a75-a98f-6ed308806fee/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c727ee56ff8cf558c3dc08b64ebc267261ea17bdfb88e50734daf71ad89adc7d [2021-11-23 02:07:40,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:07:40,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:07:40,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:07:40,423 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:07:40,423 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:07:40,425 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1641a488-4d7b-4a75-a98f-6ed308806fee/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i [2021-11-23 02:07:40,505 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1641a488-4d7b-4a75-a98f-6ed308806fee/bin/utaipan-EQgc7hIp5V/data/f0e58f49c/596008a6ef2e494aafa76407eef2f566/FLAG1d5f8283c [2021-11-23 02:07:41,462 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:07:41,463 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1641a488-4d7b-4a75-a98f-6ed308806fee/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i [2021-11-23 02:07:41,518 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1641a488-4d7b-4a75-a98f-6ed308806fee/bin/utaipan-EQgc7hIp5V/data/f0e58f49c/596008a6ef2e494aafa76407eef2f566/FLAG1d5f8283c [2021-11-23 02:07:41,900 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1641a488-4d7b-4a75-a98f-6ed308806fee/bin/utaipan-EQgc7hIp5V/data/f0e58f49c/596008a6ef2e494aafa76407eef2f566 [2021-11-23 02:07:41,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:07:41,904 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:07:41,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:07:41,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:07:41,921 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:07:41,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:07:41" (1/1) ... [2021-11-23 02:07:41,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@493ec24f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:41, skipping insertion in model container [2021-11-23 02:07:41,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:07:41" (1/1) ... [2021-11-23 02:07:41,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:07:42,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:07:45,049 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1641a488-4d7b-4a75-a98f-6ed308806fee/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[328445,328458] [2021-11-23 02:07:45,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1641a488-4d7b-4a75-a98f-6ed308806fee/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[328590,328603] [2021-11-23 02:07:45,081 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:07:45,133 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:07:45,589 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1641a488-4d7b-4a75-a98f-6ed308806fee/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[328445,328458] [2021-11-23 02:07:45,590 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1641a488-4d7b-4a75-a98f-6ed308806fee/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[328590,328603] [2021-11-23 02:07:45,594 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:07:45,772 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:07:45,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:45 WrapperNode [2021-11-23 02:07:45,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:07:45,774 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:07:45,774 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:07:45,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:07:45,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:45" (1/1) ... [2021-11-23 02:07:45,899 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:45" (1/1) ... [2021-11-23 02:07:46,085 INFO L137 Inliner]: procedures = 388, calls = 2109, calls flagged for inlining = 154, calls inlined = 135, statements flattened = 4340 [2021-11-23 02:07:46,086 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:07:46,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:07:46,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:07:46,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:07:46,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:45" (1/1) ... [2021-11-23 02:07:46,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:45" (1/1) ... [2021-11-23 02:07:46,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:45" (1/1) ... [2021-11-23 02:07:46,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:45" (1/1) ... [2021-11-23 02:07:46,342 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:45" (1/1) ... [2021-11-23 02:07:46,381 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:45" (1/1) ... [2021-11-23 02:07:46,409 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:45" (1/1) ... [2021-11-23 02:07:46,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:07:46,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:07:46,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:07:46,442 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:07:46,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:45" (1/1) ... [2021-11-23 02:07:46,451 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:07:46,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1641a488-4d7b-4a75-a98f-6ed308806fee/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:07:46,483 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1641a488-4d7b-4a75-a98f-6ed308806fee/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:07:46,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1641a488-4d7b-4a75-a98f-6ed308806fee/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:07:46,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_97 [2021-11-23 02:07:46,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_97 [2021-11-23 02:07:46,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 02:07:46,536 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 02:07:46,536 INFO L130 BoogieDeclarations]: Found specification of procedure RxCurCount [2021-11-23 02:07:46,536 INFO L138 BoogieDeclarations]: Found implementation of procedure RxCurCount [2021-11-23 02:07:46,536 INFO L130 BoogieDeclarations]: Found specification of procedure irda_setup_dma [2021-11-23 02:07:46,537 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_setup_dma [2021-11-23 02:07:46,537 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-23 02:07:46,537 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-23 02:07:46,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 02:07:46,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 02:07:46,537 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-23 02:07:46,538 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-23 02:07:46,538 INFO L130 BoogieDeclarations]: Found specification of procedure CheckRegBit [2021-11-23 02:07:46,538 INFO L138 BoogieDeclarations]: Found implementation of procedure CheckRegBit [2021-11-23 02:07:46,538 INFO L130 BoogieDeclarations]: Found specification of procedure via_remove_one [2021-11-23 02:07:46,538 INFO L138 BoogieDeclarations]: Found implementation of procedure via_remove_one [2021-11-23 02:07:46,538 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_speed [2021-11-23 02:07:46,539 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_speed [2021-11-23 02:07:46,539 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2021-11-23 02:07:46,539 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2021-11-23 02:07:46,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-23 02:07:46,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-23 02:07:46,539 INFO L130 BoogieDeclarations]: Found specification of procedure SetPulseWidth [2021-11-23 02:07:46,540 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPulseWidth [2021-11-23 02:07:46,540 INFO L130 BoogieDeclarations]: Found specification of procedure Tdelay [2021-11-23 02:07:46,540 INFO L138 BoogieDeclarations]: Found implementation of procedure Tdelay [2021-11-23 02:07:46,540 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-11-23 02:07:46,540 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-11-23 02:07:46,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-23 02:07:46,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-23 02:07:46,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:07:46,541 INFO L130 BoogieDeclarations]: Found specification of procedure ClkTx [2021-11-23 02:07:46,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ClkTx [2021-11-23 02:07:46,542 INFO L130 BoogieDeclarations]: Found specification of procedure WriteLPCReg [2021-11-23 02:07:46,542 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteLPCReg [2021-11-23 02:07:46,542 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-23 02:07:46,543 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-23 02:07:46,543 INFO L130 BoogieDeclarations]: Found specification of procedure CommonInit [2021-11-23 02:07:46,543 INFO L138 BoogieDeclarations]: Found implementation of procedure CommonInit [2021-11-23 02:07:46,543 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-23 02:07:46,543 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-23 02:07:46,543 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_dongle_speed [2021-11-23 02:07:46,544 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_dongle_speed [2021-11-23 02:07:46,544 INFO L130 BoogieDeclarations]: Found specification of procedure ReadLPCReg [2021-11-23 02:07:46,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadLPCReg [2021-11-23 02:07:46,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:07:46,546 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma [2021-11-23 02:07:46,546 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma [2021-11-23 02:07:46,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_via_ircc_cb [2021-11-23 02:07:46,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_via_ircc_cb [2021-11-23 02:07:46,546 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_receive [2021-11-23 02:07:46,547 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_receive [2021-11-23 02:07:46,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:07:46,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-23 02:07:46,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-23 02:07:46,547 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_close [2021-11-23 02:07:46,548 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_close [2021-11-23 02:07:46,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:07:46,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 02:07:46,549 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 02:07:46,549 INFO L130 BoogieDeclarations]: Found specification of procedure CkRxRecv [2021-11-23 02:07:46,549 INFO L138 BoogieDeclarations]: Found implementation of procedure CkRxRecv [2021-11-23 02:07:46,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-23 02:07:46,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-23 02:07:46,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-23 02:07:46,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-23 02:07:46,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-23 02:07:46,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-23 02:07:46,551 INFO L130 BoogieDeclarations]: Found specification of procedure irda_get_next_speed [2021-11-23 02:07:46,551 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_get_next_speed [2021-11-23 02:07:46,551 INFO L130 BoogieDeclarations]: Found specification of procedure ReadReg [2021-11-23 02:07:46,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadReg [2021-11-23 02:07:46,552 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_open [2021-11-23 02:07:46,552 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_open [2021-11-23 02:07:46,552 INFO L130 BoogieDeclarations]: Found specification of procedure WriteRegBit [2021-11-23 02:07:46,552 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteRegBit [2021-11-23 02:07:46,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:07:46,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-23 02:07:46,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-23 02:07:46,553 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Indx [2021-11-23 02:07:46,554 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Indx [2021-11-23 02:07:46,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:07:46,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-23 02:07:46,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-23 02:07:46,554 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-23 02:07:46,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-23 02:07:46,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:07:46,556 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:07:46,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:07:46,556 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:07:46,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:07:46,557 INFO L130 BoogieDeclarations]: Found specification of procedure WriteReg [2021-11-23 02:07:46,557 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteReg [2021-11-23 02:07:46,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-23 02:07:46,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-23 02:07:46,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-23 02:07:46,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-23 02:07:46,558 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-23 02:07:46,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-23 02:07:46,558 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-23 02:07:46,558 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-23 02:07:46,559 INFO L130 BoogieDeclarations]: Found specification of procedure SetBaudRate [2021-11-23 02:07:46,559 INFO L138 BoogieDeclarations]: Found implementation of procedure SetBaudRate [2021-11-23 02:07:46,559 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Byte [2021-11-23 02:07:46,559 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Byte [2021-11-23 02:07:46,559 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-23 02:07:46,560 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-23 02:07:46,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-23 02:07:46,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-23 02:07:46,564 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_open [2021-11-23 02:07:46,564 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_open [2021-11-23 02:07:46,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:07:46,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:07:46,566 INFO L130 BoogieDeclarations]: Found specification of procedure ResetChip [2021-11-23 02:07:46,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ResetChip [2021-11-23 02:07:46,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:07:46,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:07:46,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 02:07:46,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 02:07:46,574 INFO L130 BoogieDeclarations]: Found specification of procedure irda_device_txqueue_empty [2021-11-23 02:07:46,574 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_device_txqueue_empty [2021-11-23 02:07:46,574 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2021-11-23 02:07:46,574 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2021-11-23 02:07:46,575 INFO L130 BoogieDeclarations]: Found specification of procedure Sdelay [2021-11-23 02:07:46,575 INFO L138 BoogieDeclarations]: Found implementation of procedure Sdelay [2021-11-23 02:07:46,575 INFO L130 BoogieDeclarations]: Found specification of procedure SetSIR [2021-11-23 02:07:46,575 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSIR [2021-11-23 02:07:46,575 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-23 02:07:46,575 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-23 02:07:46,575 INFO L130 BoogieDeclarations]: Found specification of procedure SetMaxRxPacketSize [2021-11-23 02:07:46,576 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMaxRxPacketSize [2021-11-23 02:07:46,576 INFO L130 BoogieDeclarations]: Found specification of procedure GetRecvByte [2021-11-23 02:07:46,576 INFO L138 BoogieDeclarations]: Found implementation of procedure GetRecvByte [2021-11-23 02:07:46,576 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-23 02:07:46,576 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-23 02:07:46,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:07:46,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:07:46,577 INFO L130 BoogieDeclarations]: Found specification of procedure hwreset [2021-11-23 02:07:46,577 INFO L138 BoogieDeclarations]: Found implementation of procedure hwreset [2021-11-23 02:07:46,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:07:46,577 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-23 02:07:46,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-23 02:07:46,577 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-11-23 02:07:46,578 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-11-23 02:07:46,578 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-23 02:07:46,578 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-23 02:07:46,578 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-23 02:07:46,578 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-23 02:07:46,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-23 02:07:46,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-23 02:07:46,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-23 02:07:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-23 02:07:46,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-23 02:07:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-23 02:07:46,579 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_xmit [2021-11-23 02:07:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_xmit [2021-11-23 02:07:46,580 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-23 02:07:46,580 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-23 02:07:46,580 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-23 02:07:46,580 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-23 02:07:46,580 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-23 02:07:46,580 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-23 02:07:46,580 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-23 02:07:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-23 02:07:46,581 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-23 02:07:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-23 02:07:46,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:07:46,581 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-11-23 02:07:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-11-23 02:07:46,581 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendByte [2021-11-23 02:07:46,582 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendByte [2021-11-23 02:07:46,582 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-11-23 02:07:46,582 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-11-23 02:07:46,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 02:07:46,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 02:07:46,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2021-11-23 02:07:46,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2021-11-23 02:07:46,583 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendPreambleCount [2021-11-23 02:07:46,583 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendPreambleCount [2021-11-23 02:07:46,583 INFO L130 BoogieDeclarations]: Found specification of procedure InitCard [2021-11-23 02:07:46,583 INFO L138 BoogieDeclarations]: Found implementation of procedure InitCard [2021-11-23 02:07:46,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-23 02:07:46,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-23 02:07:46,583 INFO L130 BoogieDeclarations]: Found specification of procedure SetTimer [2021-11-23 02:07:46,584 INFO L138 BoogieDeclarations]: Found implementation of procedure SetTimer [2021-11-23 02:07:46,584 INFO L130 BoogieDeclarations]: Found specification of procedure ActClk [2021-11-23 02:07:46,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ActClk [2021-11-23 02:07:46,584 INFO L130 BoogieDeclarations]: Found specification of procedure request_dma [2021-11-23 02:07:46,584 INFO L138 BoogieDeclarations]: Found implementation of procedure request_dma [2021-11-23 02:07:46,584 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-23 02:07:46,584 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-23 02:07:46,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:07:46,585 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2021-11-23 02:07:46,585 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2021-11-23 02:07:46,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-23 02:07:46,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-23 02:07:46,585 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2021-11-23 02:07:46,586 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2021-11-23 02:07:47,307 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:07:47,314 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:07:47,547 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 02:07:51,211 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 02:07:51,879 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:07:53,167 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:07:53,167 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 02:07:53,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:07:53 BoogieIcfgContainer [2021-11-23 02:07:53,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:07:53,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:07:53,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:07:53,178 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:07:53,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:07:41" (1/3) ... [2021-11-23 02:07:53,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6facdbff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:07:53, skipping insertion in model container [2021-11-23 02:07:53,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:45" (2/3) ... [2021-11-23 02:07:53,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6facdbff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:07:53, skipping insertion in model container [2021-11-23 02:07:53,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:07:53" (3/3) ... [2021-11-23 02:07:53,181 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i [2021-11-23 02:07:53,186 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:07:53,187 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:07:53,261 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:07:53,278 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:07:53,282 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:07:53,355 INFO L276 IsEmpty]: Start isEmpty. Operand has 1559 states, 807 states have (on average 1.241635687732342) internal successors, (1002), 831 states have internal predecessors, (1002), 660 states have call successors, (660), 92 states have call predecessors, (660), 91 states have return successors, (656), 644 states have call predecessors, (656), 656 states have call successors, (656) [2021-11-23 02:07:53,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-23 02:07:53,391 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:07:53,392 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:07:53,392 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:07:53,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:07:53,398 INFO L85 PathProgramCache]: Analyzing trace with hash 737644416, now seen corresponding path program 1 times [2021-11-23 02:07:53,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:07:53,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336427267] [2021-11-23 02:07:53,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:07:53,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:07:53,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:07:54,065 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2021-11-23 02:07:54,066 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:07:54,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336427267] [2021-11-23 02:07:54,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336427267] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:07:54,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:07:54,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:07:54,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350615166] [2021-11-23 02:07:54,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:07:54,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:07:54,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:07:54,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:07:54,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:07:54,123 INFO L87 Difference]: Start difference. First operand has 1559 states, 807 states have (on average 1.241635687732342) internal successors, (1002), 831 states have internal predecessors, (1002), 660 states have call successors, (660), 92 states have call predecessors, (660), 91 states have return successors, (656), 644 states have call predecessors, (656), 656 states have call successors, (656) Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-23 02:07:56,048 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:07:57,966 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:08:00,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:08:00,708 INFO L93 Difference]: Finished difference Result 4334 states and 6480 transitions. [2021-11-23 02:08:00,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:08:00,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 127 [2021-11-23 02:08:00,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:08:00,770 INFO L225 Difference]: With dead ends: 4334 [2021-11-23 02:08:00,770 INFO L226 Difference]: Without dead ends: 2729 [2021-11-23 02:08:00,796 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:08:00,802 INFO L933 BasicCegarLoop]: 2720 mSDtfsCounter, 1852 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1852 SdHoareTripleChecker+Valid, 4818 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:08:00,805 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1852 Valid, 4818 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2021-11-23 02:08:00,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2729 states. [2021-11-23 02:08:01,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2729 to 2725. [2021-11-23 02:08:01,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2725 states, 1416 states have (on average 1.2337570621468927) internal successors, (1747), 1462 states have internal predecessors, (1747), 1143 states have call successors, (1143), 166 states have call predecessors, (1143), 165 states have return successors, (1160), 1116 states have call predecessors, (1160), 1143 states have call successors, (1160) [2021-11-23 02:08:01,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2725 states to 2725 states and 4050 transitions. [2021-11-23 02:08:01,245 INFO L78 Accepts]: Start accepts. Automaton has 2725 states and 4050 transitions. Word has length 127 [2021-11-23 02:08:01,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:08:01,247 INFO L470 AbstractCegarLoop]: Abstraction has 2725 states and 4050 transitions. [2021-11-23 02:08:01,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-23 02:08:01,249 INFO L276 IsEmpty]: Start isEmpty. Operand 2725 states and 4050 transitions. [2021-11-23 02:08:01,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-23 02:08:01,275 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:08:01,276 INFO L514 BasicCegarLoop]: trace histogram [8, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 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] [2021-11-23 02:08:01,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:08:01,277 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:08:01,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:08:01,278 INFO L85 PathProgramCache]: Analyzing trace with hash 806473264, now seen corresponding path program 1 times [2021-11-23 02:08:01,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:08:01,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810427767] [2021-11-23 02:08:01,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:01,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:08:01,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:01,708 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2021-11-23 02:08:01,708 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:08:01,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810427767] [2021-11-23 02:08:01,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810427767] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:08:01,709 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:08:01,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:08:01,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782684396] [2021-11-23 02:08:01,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:08:01,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:08:01,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:08:01,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:08:01,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:08:01,719 INFO L87 Difference]: Start difference. First operand 2725 states and 4050 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-23 02:08:04,045 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:08:05,768 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:08:09,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:08:09,623 INFO L93 Difference]: Finished difference Result 7256 states and 10798 transitions. [2021-11-23 02:08:09,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:08:09,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 181 [2021-11-23 02:08:09,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:08:09,675 INFO L225 Difference]: With dead ends: 7256 [2021-11-23 02:08:09,676 INFO L226 Difference]: Without dead ends: 4542 [2021-11-23 02:08:09,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:08:09,704 INFO L933 BasicCegarLoop]: 2568 mSDtfsCounter, 1571 mSDsluCounter, 2213 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1571 SdHoareTripleChecker+Valid, 4598 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:08:09,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1571 Valid, 4598 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2021-11-23 02:08:09,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4542 states. [2021-11-23 02:08:10,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4542 to 4538. [2021-11-23 02:08:10,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4538 states, 2346 states have (on average 1.2310315430520034) internal successors, (2888), 2414 states have internal predecessors, (2888), 1913 states have call successors, (1913), 279 states have call predecessors, (1913), 278 states have return successors, (1930), 1876 states have call predecessors, (1930), 1913 states have call successors, (1930) [2021-11-23 02:08:10,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4538 states to 4538 states and 6731 transitions. [2021-11-23 02:08:10,235 INFO L78 Accepts]: Start accepts. Automaton has 4538 states and 6731 transitions. Word has length 181 [2021-11-23 02:08:10,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:08:10,236 INFO L470 AbstractCegarLoop]: Abstraction has 4538 states and 6731 transitions. [2021-11-23 02:08:10,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-23 02:08:10,236 INFO L276 IsEmpty]: Start isEmpty. Operand 4538 states and 6731 transitions. [2021-11-23 02:08:10,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-11-23 02:08:10,257 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:08:10,257 INFO L514 BasicCegarLoop]: trace histogram [11, 7, 7, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2021-11-23 02:08:10,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:08:10,258 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:08:10,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:08:10,258 INFO L85 PathProgramCache]: Analyzing trace with hash -404910037, now seen corresponding path program 1 times [2021-11-23 02:08:10,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:08:10,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003347479] [2021-11-23 02:08:10,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:10,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:08:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:10,558 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2021-11-23 02:08:10,558 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:08:10,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003347479] [2021-11-23 02:08:10,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003347479] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:08:10,564 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:08:10,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:08:10,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042237483] [2021-11-23 02:08:10,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:08:10,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:08:10,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:08:10,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:08:10,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:08:10,568 INFO L87 Difference]: Start difference. First operand 4538 states and 6731 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-23 02:08:13,189 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:08:15,848 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:08:17,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:08:17,885 INFO L93 Difference]: Finished difference Result 10882 states and 16159 transitions. [2021-11-23 02:08:17,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:08:17,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 225 [2021-11-23 02:08:17,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:08:17,964 INFO L225 Difference]: With dead ends: 10882 [2021-11-23 02:08:17,964 INFO L226 Difference]: Without dead ends: 6355 [2021-11-23 02:08:17,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:08:18,000 INFO L933 BasicCegarLoop]: 3507 mSDtfsCounter, 1580 mSDsluCounter, 2196 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1580 SdHoareTripleChecker+Valid, 5521 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:08:18,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1580 Valid, 5521 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2021-11-23 02:08:18,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6355 states. [2021-11-23 02:08:18,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6355 to 6351. [2021-11-23 02:08:18,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6351 states, 3275 states have (on average 1.2299236641221374) internal successors, (4028), 3365 states have internal predecessors, (4028), 2683 states have call successors, (2683), 393 states have call predecessors, (2683), 392 states have return successors, (2700), 2636 states have call predecessors, (2700), 2683 states have call successors, (2700) [2021-11-23 02:08:18,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6351 states to 6351 states and 9411 transitions. [2021-11-23 02:08:18,637 INFO L78 Accepts]: Start accepts. Automaton has 6351 states and 9411 transitions. Word has length 225 [2021-11-23 02:08:18,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:08:18,640 INFO L470 AbstractCegarLoop]: Abstraction has 6351 states and 9411 transitions. [2021-11-23 02:08:18,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-23 02:08:18,641 INFO L276 IsEmpty]: Start isEmpty. Operand 6351 states and 9411 transitions. [2021-11-23 02:08:18,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-11-23 02:08:18,670 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:08:18,670 INFO L514 BasicCegarLoop]: trace histogram [13, 11, 11, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:08:18,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:08:18,675 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:08:18,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:08:18,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1311790589, now seen corresponding path program 1 times [2021-11-23 02:08:18,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:08:18,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552210023] [2021-11-23 02:08:18,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:18,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:08:18,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:19,092 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2021-11-23 02:08:19,092 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:08:19,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552210023] [2021-11-23 02:08:19,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552210023] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:08:19,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:08:19,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:08:19,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603723344] [2021-11-23 02:08:19,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:08:19,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:08:19,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:08:19,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:08:19,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:08:19,095 INFO L87 Difference]: Start difference. First operand 6351 states and 9411 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-23 02:08:22,339 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:08:23,815 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:08:25,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:08:25,325 INFO L93 Difference]: Finished difference Result 14682 states and 21752 transitions. [2021-11-23 02:08:25,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:08:25,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 287 [2021-11-23 02:08:25,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:08:25,418 INFO L225 Difference]: With dead ends: 14682 [2021-11-23 02:08:25,419 INFO L226 Difference]: Without dead ends: 8342 [2021-11-23 02:08:25,466 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:08:25,470 INFO L933 BasicCegarLoop]: 3578 mSDtfsCounter, 2013 mSDsluCounter, 1883 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2013 SdHoareTripleChecker+Valid, 5305 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:08:25,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2013 Valid, 5305 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2021-11-23 02:08:25,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8342 states. [2021-11-23 02:08:26,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8342 to 8338. [2021-11-23 02:08:26,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8338 states, 4298 states have (on average 1.2291763610981852) internal successors, (5283), 4415 states have internal predecessors, (5283), 3514 states have call successors, (3514), 527 states have call predecessors, (3514), 525 states have return successors, (3531), 3453 states have call predecessors, (3531), 3514 states have call successors, (3531) [2021-11-23 02:08:26,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8338 states to 8338 states and 12328 transitions. [2021-11-23 02:08:26,198 INFO L78 Accepts]: Start accepts. Automaton has 8338 states and 12328 transitions. Word has length 287 [2021-11-23 02:08:26,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:08:26,200 INFO L470 AbstractCegarLoop]: Abstraction has 8338 states and 12328 transitions. [2021-11-23 02:08:26,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-23 02:08:26,200 INFO L276 IsEmpty]: Start isEmpty. Operand 8338 states and 12328 transitions. [2021-11-23 02:08:26,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2021-11-23 02:08:26,234 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:08:26,235 INFO L514 BasicCegarLoop]: trace histogram [13, 11, 11, 8, 7, 7, 7, 7, 7, 7, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-23 02:08:26,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:08:26,235 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:08:26,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:08:26,236 INFO L85 PathProgramCache]: Analyzing trace with hash 387094490, now seen corresponding path program 1 times [2021-11-23 02:08:26,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:08:26,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569795594] [2021-11-23 02:08:26,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:26,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:08:26,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:26,606 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2021-11-23 02:08:26,607 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:08:26,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569795594] [2021-11-23 02:08:26,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569795594] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:08:26,607 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:08:26,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:08:26,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764603563] [2021-11-23 02:08:26,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:08:26,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:08:26,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:08:26,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:08:26,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:08:26,609 INFO L87 Difference]: Start difference. First operand 8338 states and 12328 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-23 02:08:28,499 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:08:33,432 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:08:34,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:08:34,996 INFO L93 Difference]: Finished difference Result 24619 states and 36411 transitions. [2021-11-23 02:08:34,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:08:34,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 314 [2021-11-23 02:08:34,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:08:35,126 INFO L225 Difference]: With dead ends: 24619 [2021-11-23 02:08:35,127 INFO L226 Difference]: Without dead ends: 16292 [2021-11-23 02:08:35,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:08:35,174 INFO L933 BasicCegarLoop]: 2640 mSDtfsCounter, 1992 mSDsluCounter, 2240 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1992 SdHoareTripleChecker+Valid, 4687 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:08:35,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1992 Valid, 4687 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 393 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2021-11-23 02:08:35,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16292 states. [2021-11-23 02:08:36,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16292 to 16290. [2021-11-23 02:08:36,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16290 states, 8398 states have (on average 1.2305310788282924) internal successors, (10334), 8621 states have internal predecessors, (10334), 6859 states have call successors, (6859), 1035 states have call predecessors, (6859), 1032 states have return successors, (6895), 6743 states have call predecessors, (6895), 6859 states have call successors, (6895) [2021-11-23 02:08:36,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16290 states to 16290 states and 24088 transitions. [2021-11-23 02:08:36,743 INFO L78 Accepts]: Start accepts. Automaton has 16290 states and 24088 transitions. Word has length 314 [2021-11-23 02:08:36,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:08:36,744 INFO L470 AbstractCegarLoop]: Abstraction has 16290 states and 24088 transitions. [2021-11-23 02:08:36,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-23 02:08:36,745 INFO L276 IsEmpty]: Start isEmpty. Operand 16290 states and 24088 transitions. [2021-11-23 02:08:36,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2021-11-23 02:08:36,782 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:08:36,783 INFO L514 BasicCegarLoop]: trace histogram [13, 11, 11, 8, 7, 7, 7, 7, 7, 7, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-23 02:08:36,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:08:36,783 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:08:36,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:08:36,784 INFO L85 PathProgramCache]: Analyzing trace with hash -982150899, now seen corresponding path program 1 times [2021-11-23 02:08:36,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:08:36,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498597504] [2021-11-23 02:08:36,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:36,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:08:36,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:37,205 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2021-11-23 02:08:37,206 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:08:37,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498597504] [2021-11-23 02:08:37,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498597504] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:08:37,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177969004] [2021-11-23 02:08:37,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:37,207 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:08:37,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1641a488-4d7b-4a75-a98f-6ed308806fee/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:08:37,213 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1641a488-4d7b-4a75-a98f-6ed308806fee/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:08:37,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1641a488-4d7b-4a75-a98f-6ed308806fee/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:08:38,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:38,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 4096 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-23 02:08:38,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:09:00,379 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2021-11-23 02:09:00,380 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:09:00,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177969004] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:09:00,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:09:00,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2021-11-23 02:09:00,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90696223] [2021-11-23 02:09:00,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:09:00,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:09:00,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:09:00,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:09:00,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-23 02:09:00,383 INFO L87 Difference]: Start difference. First operand 16290 states and 24088 transitions. Second operand has 6 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (51), 1 states have call predecessors, (51), 2 states have return successors, (48), 2 states have call predecessors, (48), 1 states have call successors, (48) [2021-11-23 02:09:03,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:09:05,267 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:09:06,880 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:09:08,560 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:09:09,745 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:09:19,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:09:19,212 INFO L93 Difference]: Finished difference Result 28635 states and 42369 transitions. [2021-11-23 02:09:19,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:09:19,212 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (51), 1 states have call predecessors, (51), 2 states have return successors, (48), 2 states have call predecessors, (48), 1 states have call successors, (48) Word has length 318 [2021-11-23 02:09:19,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:09:19,435 INFO L225 Difference]: With dead ends: 28635 [2021-11-23 02:09:19,436 INFO L226 Difference]: Without dead ends: 28633 [2021-11-23 02:09:19,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-11-23 02:09:19,463 INFO L933 BasicCegarLoop]: 3064 mSDtfsCounter, 1501 mSDsluCounter, 9571 mSDsCounter, 0 mSdLazyCounter, 2031 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 11823 SdHoareTripleChecker+Invalid, 2032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:09:19,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1502 Valid, 11823 Invalid, 2032 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2031 Invalid, 0 Unknown, 0 Unchecked, 17.7s Time] [2021-11-23 02:09:19,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28633 states. [2021-11-23 02:09:22,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28633 to 28613. [2021-11-23 02:09:22,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28613 states, 14706 states have (on average 1.2301101591187271) internal successors, (18090), 15144 states have internal predecessors, (18090), 12092 states have call successors, (12092), 1836 states have call predecessors, (12092), 1814 states have return successors, (12164), 11820 states have call predecessors, (12164), 12092 states have call successors, (12164) [2021-11-23 02:09:22,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28613 states to 28613 states and 42346 transitions. [2021-11-23 02:09:22,341 INFO L78 Accepts]: Start accepts. Automaton has 28613 states and 42346 transitions. Word has length 318 [2021-11-23 02:09:22,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:09:22,343 INFO L470 AbstractCegarLoop]: Abstraction has 28613 states and 42346 transitions. [2021-11-23 02:09:22,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (51), 1 states have call predecessors, (51), 2 states have return successors, (48), 2 states have call predecessors, (48), 1 states have call successors, (48) [2021-11-23 02:09:22,343 INFO L276 IsEmpty]: Start isEmpty. Operand 28613 states and 42346 transitions. [2021-11-23 02:09:22,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2021-11-23 02:09:22,407 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:09:22,408 INFO L514 BasicCegarLoop]: trace histogram [15, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-23 02:09:22,451 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1641a488-4d7b-4a75-a98f-6ed308806fee/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-23 02:09:22,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1641a488-4d7b-4a75-a98f-6ed308806fee/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:09:22,634 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:09:22,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:09:22,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1534964272, now seen corresponding path program 1 times [2021-11-23 02:09:22,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:09:22,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420135345] [2021-11-23 02:09:22,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:09:22,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:09:22,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:09:22,973 INFO L134 CoverageAnalysis]: Checked inductivity of 626 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2021-11-23 02:09:22,974 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:09:22,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420135345] [2021-11-23 02:09:22,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420135345] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:09:22,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:09:22,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:09:22,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460890296] [2021-11-23 02:09:22,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:09:22,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:09:22,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:09:22,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:09:22,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:09:22,978 INFO L87 Difference]: Start difference. First operand 28613 states and 42346 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-23 02:09:24,671 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:09:26,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:09:28,909 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:09:30,882 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:09:31,910 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:09:34,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:09:34,750 INFO L93 Difference]: Finished difference Result 63529 states and 94127 transitions. [2021-11-23 02:09:34,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:09:34,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 330 [2021-11-23 02:09:34,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:09:35,025 INFO L225 Difference]: With dead ends: 63529 [2021-11-23 02:09:35,025 INFO L226 Difference]: Without dead ends: 34927 [2021-11-23 02:09:35,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:09:35,196 INFO L933 BasicCegarLoop]: 3508 mSDtfsCounter, 1589 mSDsluCounter, 2205 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1589 SdHoareTripleChecker+Valid, 5530 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:09:35,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1589 Valid, 5530 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 562 Invalid, 1 Unknown, 0 Unchecked, 9.7s Time] [2021-11-23 02:09:35,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34927 states. [2021-11-23 02:09:38,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34927 to 34917. [2021-11-23 02:09:38,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34917 states, 17940 states have (on average 1.2305462653288741) internal successors, (22076), 18464 states have internal predecessors, (22076), 14768 states have call successors, (14768), 2234 states have call predecessors, (14768), 2208 states have return successors, (14840), 14446 states have call predecessors, (14840), 14768 states have call successors, (14840) [2021-11-23 02:09:38,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34917 states to 34917 states and 51684 transitions. [2021-11-23 02:09:38,737 INFO L78 Accepts]: Start accepts. Automaton has 34917 states and 51684 transitions. Word has length 330 [2021-11-23 02:09:38,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:09:38,738 INFO L470 AbstractCegarLoop]: Abstraction has 34917 states and 51684 transitions. [2021-11-23 02:09:38,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-23 02:09:38,738 INFO L276 IsEmpty]: Start isEmpty. Operand 34917 states and 51684 transitions. [2021-11-23 02:09:38,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2021-11-23 02:09:38,811 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:09:38,811 INFO L514 BasicCegarLoop]: trace histogram [14, 13, 13, 8, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:09:38,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 02:09:38,812 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:09:38,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:09:38,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1035810999, now seen corresponding path program 1 times [2021-11-23 02:09:38,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:09:38,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292277781] [2021-11-23 02:09:38,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:09:38,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:09:38,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:09:39,067 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 656 trivial. 0 not checked. [2021-11-23 02:09:39,067 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:09:39,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292277781] [2021-11-23 02:09:39,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292277781] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:09:39,068 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:09:39,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:09:39,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466032674] [2021-11-23 02:09:39,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:09:39,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:09:39,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:09:39,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:09:39,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:09:39,071 INFO L87 Difference]: Start difference. First operand 34917 states and 51684 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2021-11-23 02:09:45,538 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:09:47,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:09:47,215 INFO L93 Difference]: Finished difference Result 69658 states and 102616 transitions. [2021-11-23 02:09:47,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:09:47,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) Word has length 368 [2021-11-23 02:09:47,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:09:47,588 INFO L225 Difference]: With dead ends: 69658 [2021-11-23 02:09:47,588 INFO L226 Difference]: Without dead ends: 34752 [2021-11-23 02:09:47,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:09:47,750 INFO L933 BasicCegarLoop]: 2666 mSDtfsCounter, 2059 mSDsluCounter, 2213 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2059 SdHoareTripleChecker+Valid, 4694 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:09:47,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2059 Valid, 4694 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2021-11-23 02:09:47,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34752 states. [2021-11-23 02:09:49,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34752 to 34742. [2021-11-23 02:09:49,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34742 states, 18425 states have (on average 1.221438263229308) internal successors, (22505), 18979 states have internal predecessors, (22505), 14048 states have call successors, (14048), 2306 states have call predecessors, (14048), 2268 states have return successors, (14186), 13670 states have call predecessors, (14186), 14048 states have call successors, (14186) [2021-11-23 02:09:50,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34742 states to 34742 states and 50739 transitions. [2021-11-23 02:09:50,079 INFO L78 Accepts]: Start accepts. Automaton has 34742 states and 50739 transitions. Word has length 368 [2021-11-23 02:09:50,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:09:50,080 INFO L470 AbstractCegarLoop]: Abstraction has 34742 states and 50739 transitions. [2021-11-23 02:09:50,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2021-11-23 02:09:50,080 INFO L276 IsEmpty]: Start isEmpty. Operand 34742 states and 50739 transitions. [2021-11-23 02:09:50,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2021-11-23 02:09:50,092 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:09:50,092 INFO L514 BasicCegarLoop]: trace histogram [17, 14, 14, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:09:50,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 02:09:50,093 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:09:50,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:09:50,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1062874566, now seen corresponding path program 1 times [2021-11-23 02:09:50,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:09:50,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795529899] [2021-11-23 02:09:50,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:09:50,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:09:50,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:09:50,372 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 724 trivial. 0 not checked. [2021-11-23 02:09:50,372 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:09:50,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795529899] [2021-11-23 02:09:50,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795529899] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:09:50,373 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:09:50,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:09:50,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092875931] [2021-11-23 02:09:50,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:09:50,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:09:50,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:09:50,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:09:50,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:09:50,376 INFO L87 Difference]: Start difference. First operand 34742 states and 50739 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-23 02:09:53,014 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:09:54,462 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:09:58,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:10:04,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:10:04,113 INFO L93 Difference]: Finished difference Result 75829 states and 110687 transitions. [2021-11-23 02:10:04,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:10:04,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) Word has length 366 [2021-11-23 02:10:04,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:10:04,373 INFO L225 Difference]: With dead ends: 75829 [2021-11-23 02:10:04,373 INFO L226 Difference]: Without dead ends: 41116 [2021-11-23 02:10:04,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:10:04,537 INFO L933 BasicCegarLoop]: 3536 mSDtfsCounter, 1652 mSDsluCounter, 9913 mSDsCounter, 0 mSdLazyCounter, 1204 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1658 SdHoareTripleChecker+Valid, 12629 SdHoareTripleChecker+Invalid, 1208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1204 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:10:04,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1658 Valid, 12629 Invalid, 1208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1204 Invalid, 1 Unknown, 0 Unchecked, 11.5s Time] [2021-11-23 02:10:04,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41116 states. [2021-11-23 02:10:06,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41116 to 41072. [2021-11-23 02:10:06,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41072 states, 21766 states have (on average 1.2237434530919784) internal successors, (26636), 22501 states have internal predecessors, (26636), 16550 states have call successors, (16550), 2795 states have call predecessors, (16550), 2755 states have return successors, (16706), 16049 states have call predecessors, (16706), 16550 states have call successors, (16706) [2021-11-23 02:10:07,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41072 states to 41072 states and 59892 transitions. [2021-11-23 02:10:07,189 INFO L78 Accepts]: Start accepts. Automaton has 41072 states and 59892 transitions. Word has length 366 [2021-11-23 02:10:07,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:10:07,191 INFO L470 AbstractCegarLoop]: Abstraction has 41072 states and 59892 transitions. [2021-11-23 02:10:07,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-23 02:10:07,192 INFO L276 IsEmpty]: Start isEmpty. Operand 41072 states and 59892 transitions. [2021-11-23 02:10:07,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2021-11-23 02:10:07,204 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:10:07,207 INFO L514 BasicCegarLoop]: trace histogram [17, 14, 14, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:10:07,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 02:10:07,208 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:10:07,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:10:07,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1605111313, now seen corresponding path program 1 times [2021-11-23 02:10:07,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:10:07,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087974485] [2021-11-23 02:10:07,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:10:07,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:10:07,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:10:07,461 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 724 trivial. 0 not checked. [2021-11-23 02:10:07,461 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:10:07,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087974485] [2021-11-23 02:10:07,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087974485] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:10:07,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:10:07,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:10:07,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556114753] [2021-11-23 02:10:07,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:10:07,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:10:07,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:10:07,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:10:07,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:10:07,464 INFO L87 Difference]: Start difference. First operand 41072 states and 59892 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-23 02:10:10,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:10:12,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:10:14,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:10:20,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:10:20,700 INFO L93 Difference]: Finished difference Result 87437 states and 127577 transitions. [2021-11-23 02:10:20,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:10:20,701 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) Word has length 367 [2021-11-23 02:10:20,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:10:20,988 INFO L225 Difference]: With dead ends: 87437 [2021-11-23 02:10:20,988 INFO L226 Difference]: Without dead ends: 46394 [2021-11-23 02:10:21,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:10:21,180 INFO L933 BasicCegarLoop]: 3476 mSDtfsCounter, 1530 mSDsluCounter, 9783 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1536 SdHoareTripleChecker+Valid, 12453 SdHoareTripleChecker+Invalid, 1209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:10:21,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1536 Valid, 12453 Invalid, 1209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1199 Invalid, 2 Unknown, 0 Unchecked, 11.2s Time] [2021-11-23 02:10:21,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46394 states. [2021-11-23 02:10:23,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46394 to 46350. [2021-11-23 02:10:23,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46350 states, 24563 states have (on average 1.223506900622888) internal successors, (30053), 25373 states have internal predecessors, (30053), 18674 states have call successors, (18674), 3144 states have call predecessors, (18674), 3112 states have return successors, (18842), 18138 states have call predecessors, (18842), 18674 states have call successors, (18842) [2021-11-23 02:10:24,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46350 states to 46350 states and 67569 transitions. [2021-11-23 02:10:24,331 INFO L78 Accepts]: Start accepts. Automaton has 46350 states and 67569 transitions. Word has length 367 [2021-11-23 02:10:24,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:10:24,334 INFO L470 AbstractCegarLoop]: Abstraction has 46350 states and 67569 transitions. [2021-11-23 02:10:24,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-23 02:10:24,334 INFO L276 IsEmpty]: Start isEmpty. Operand 46350 states and 67569 transitions. [2021-11-23 02:10:24,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2021-11-23 02:10:24,346 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:10:24,346 INFO L514 BasicCegarLoop]: trace histogram [17, 14, 14, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:10:24,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 02:10:24,346 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:10:24,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:10:24,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1330809289, now seen corresponding path program 1 times [2021-11-23 02:10:24,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:10:24,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476011008] [2021-11-23 02:10:24,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:10:24,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:10:24,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:10:24,586 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 724 trivial. 0 not checked. [2021-11-23 02:10:24,587 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:10:24,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476011008] [2021-11-23 02:10:24,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476011008] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:10:24,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:10:24,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:10:24,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652925002] [2021-11-23 02:10:24,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:10:24,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:10:24,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:10:24,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:10:24,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:10:24,590 INFO L87 Difference]: Start difference. First operand 46350 states and 67569 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-23 02:10:27,219 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:10:32,016 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:10:35,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:10:35,581 INFO L93 Difference]: Finished difference Result 97909 states and 142883 transitions. [2021-11-23 02:10:35,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:10:35,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) Word has length 368 [2021-11-23 02:10:35,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:10:36,052 INFO L225 Difference]: With dead ends: 97909 [2021-11-23 02:10:36,053 INFO L226 Difference]: Without dead ends: 51588 [2021-11-23 02:10:36,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:10:36,242 INFO L933 BasicCegarLoop]: 3476 mSDtfsCounter, 1519 mSDsluCounter, 9788 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 12459 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:10:36,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1525 Valid, 12459 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1205 Invalid, 1 Unknown, 0 Unchecked, 8.8s Time] [2021-11-23 02:10:36,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51588 states. [2021-11-23 02:10:39,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51588 to 51544. [2021-11-23 02:10:39,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51544 states, 27324 states have (on average 1.2236129410042453) internal successors, (33434), 28209 states have internal predecessors, (33434), 20786 states have call successors, (20786), 3469 states have call predecessors, (20786), 3433 states have return successors, (20954), 20203 states have call predecessors, (20954), 20786 states have call successors, (20954) [2021-11-23 02:10:39,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51544 states to 51544 states and 75174 transitions. [2021-11-23 02:10:39,473 INFO L78 Accepts]: Start accepts. Automaton has 51544 states and 75174 transitions. Word has length 368 [2021-11-23 02:10:39,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:10:39,474 INFO L470 AbstractCegarLoop]: Abstraction has 51544 states and 75174 transitions. [2021-11-23 02:10:39,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-23 02:10:39,474 INFO L276 IsEmpty]: Start isEmpty. Operand 51544 states and 75174 transitions. [2021-11-23 02:10:39,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2021-11-23 02:10:39,490 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:10:39,490 INFO L514 BasicCegarLoop]: trace histogram [18, 14, 14, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:10:39,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-23 02:10:39,491 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:10:39,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:10:39,491 INFO L85 PathProgramCache]: Analyzing trace with hash -909443615, now seen corresponding path program 1 times [2021-11-23 02:10:39,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:10:39,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123399909] [2021-11-23 02:10:39,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:10:39,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:10:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:10:39,699 INFO L134 CoverageAnalysis]: Checked inductivity of 865 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 790 trivial. 0 not checked. [2021-11-23 02:10:39,699 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:10:39,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123399909] [2021-11-23 02:10:39,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123399909] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:10:39,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:10:39,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:10:39,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55368423] [2021-11-23 02:10:39,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:10:39,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:10:39,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:10:39,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:10:39,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:10:39,702 INFO L87 Difference]: Start difference. First operand 51544 states and 75174 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-23 02:10:41,844 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:10:43,398 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:10:45,247 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:10:46,935 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:10:50,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:10:50,899 INFO L93 Difference]: Finished difference Result 109117 states and 159175 transitions. [2021-11-23 02:10:50,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:10:50,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 379 [2021-11-23 02:10:50,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:10:51,236 INFO L225 Difference]: With dead ends: 109117 [2021-11-23 02:10:51,236 INFO L226 Difference]: Without dead ends: 57602 [2021-11-23 02:10:51,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:10:51,416 INFO L933 BasicCegarLoop]: 3302 mSDtfsCounter, 1692 mSDsluCounter, 2208 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1692 SdHoareTripleChecker+Valid, 5327 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:10:51,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1692 Valid, 5327 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2021-11-23 02:10:51,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57602 states. [2021-11-23 02:10:54,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57602 to 57588. [2021-11-23 02:10:54,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57588 states, 30483 states have (on average 1.2255683495718925) internal successors, (37359), 31541 states have internal predecessors, (37359), 23236 states have call successors, (23236), 3914 states have call predecessors, (23236), 3868 states have return successors, (23404), 22522 states have call predecessors, (23404), 23236 states have call successors, (23404) [2021-11-23 02:10:55,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57588 states to 57588 states and 83999 transitions. [2021-11-23 02:10:55,333 INFO L78 Accepts]: Start accepts. Automaton has 57588 states and 83999 transitions. Word has length 379 [2021-11-23 02:10:55,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:10:55,334 INFO L470 AbstractCegarLoop]: Abstraction has 57588 states and 83999 transitions. [2021-11-23 02:10:55,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-23 02:10:55,334 INFO L276 IsEmpty]: Start isEmpty. Operand 57588 states and 83999 transitions. [2021-11-23 02:10:55,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2021-11-23 02:10:55,361 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:10:55,361 INFO L514 BasicCegarLoop]: trace histogram [18, 14, 14, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:10:55,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-23 02:10:55,362 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:10:55,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:10:55,362 INFO L85 PathProgramCache]: Analyzing trace with hash 578247368, now seen corresponding path program 1 times [2021-11-23 02:10:55,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:10:55,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386244857] [2021-11-23 02:10:55,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:10:55,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:10:55,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:10:55,616 INFO L134 CoverageAnalysis]: Checked inductivity of 888 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2021-11-23 02:10:55,616 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:10:55,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386244857] [2021-11-23 02:10:55,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386244857] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:10:55,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:10:55,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:10:55,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121930301] [2021-11-23 02:10:55,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:10:55,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:10:55,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:10:55,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:10:55,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:10:55,619 INFO L87 Difference]: Start difference. First operand 57588 states and 83999 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-23 02:10:57,224 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:10:59,140 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:11:00,596 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:11:06,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:11:06,964 INFO L93 Difference]: Finished difference Result 120593 states and 176027 transitions. [2021-11-23 02:11:06,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:11:06,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 386 [2021-11-23 02:11:06,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:11:07,303 INFO L225 Difference]: With dead ends: 120593 [2021-11-23 02:11:07,303 INFO L226 Difference]: Without dead ends: 63034 [2021-11-23 02:11:07,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:11:07,503 INFO L933 BasicCegarLoop]: 3498 mSDtfsCounter, 1576 mSDsluCounter, 2211 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1576 SdHoareTripleChecker+Valid, 5526 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:11:07,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1576 Valid, 5526 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2021-11-23 02:11:07,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63034 states.