./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_fs-autofs4-autofs4.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d845c7-6f63-46b3-90c5-95b5c0c306cb/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d845c7-6f63-46b3-90c5-95b5c0c306cb/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d845c7-6f63-46b3-90c5-95b5c0c306cb/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d845c7-6f63-46b3-90c5-95b5c0c306cb/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d845c7-6f63-46b3-90c5-95b5c0c306cb/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d845c7-6f63-46b3-90c5-95b5c0c306cb/bin/utaipan-7li7fVZpFI --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 371146a21f508450d2917c35c74c2cfe0e1080bf9001699397599cb4eb3a0e88 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:14:46,958 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:14:46,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:14:47,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:14:47,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:14:47,007 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:14:47,010 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:14:47,014 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:14:47,016 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:14:47,022 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:14:47,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:14:47,026 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:14:47,026 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:14:47,029 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:14:47,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:14:47,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:14:47,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:14:47,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:14:47,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:14:47,047 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:14:47,049 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:14:47,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:14:47,053 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:14:47,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:14:47,062 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:14:47,063 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:14:47,063 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:14:47,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:14:47,066 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:14:47,067 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:14:47,068 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:14:47,069 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:14:47,071 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:14:47,073 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:14:47,074 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:14:47,074 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:14:47,075 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:14:47,075 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:14:47,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:14:47,076 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:14:47,077 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:14:47,078 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d845c7-6f63-46b3-90c5-95b5c0c306cb/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:14:47,119 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:14:47,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:14:47,123 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:14:47,124 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:14:47,124 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:14:47,125 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:14:47,125 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:14:47,125 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:14:47,125 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:14:47,126 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:14:47,127 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:14:47,127 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:14:47,127 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:14:47,127 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:14:47,127 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:14:47,128 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:14:47,128 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:14:47,128 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:14:47,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:14:47,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:14:47,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:14:47,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:14:47,130 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:14:47,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:14:47,130 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:14:47,130 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:14:47,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:14:47,132 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:14:47,132 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:14:47,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:14:47,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:14:47,133 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:14:47,133 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:14:47,134 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:14:47,134 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:14:47,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:14:47,134 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:14:47,134 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:14:47,135 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d845c7-6f63-46b3-90c5-95b5c0c306cb/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d845c7-6f63-46b3-90c5-95b5c0c306cb/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 371146a21f508450d2917c35c74c2cfe0e1080bf9001699397599cb4eb3a0e88 [2022-11-03 02:14:47,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:14:47,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:14:47,514 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:14:47,516 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:14:47,516 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:14:47,518 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d845c7-6f63-46b3-90c5-95b5c0c306cb/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i [2022-11-03 02:14:47,596 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d845c7-6f63-46b3-90c5-95b5c0c306cb/bin/utaipan-7li7fVZpFI/data/07e6859c2/54c703696c6843f989a75c24d7265129/FLAG95f8f1a96 [2022-11-03 02:14:48,651 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:14:48,652 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d845c7-6f63-46b3-90c5-95b5c0c306cb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i [2022-11-03 02:14:48,707 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d845c7-6f63-46b3-90c5-95b5c0c306cb/bin/utaipan-7li7fVZpFI/data/07e6859c2/54c703696c6843f989a75c24d7265129/FLAG95f8f1a96 [2022-11-03 02:14:48,965 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d845c7-6f63-46b3-90c5-95b5c0c306cb/bin/utaipan-7li7fVZpFI/data/07e6859c2/54c703696c6843f989a75c24d7265129 [2022-11-03 02:14:48,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:14:48,970 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:14:48,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:14:48,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:14:48,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:14:48,976 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:14:48" (1/1) ... [2022-11-03 02:14:48,978 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@329668ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:48, skipping insertion in model container [2022-11-03 02:14:48,978 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:14:48" (1/1) ... [2022-11-03 02:14:48,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:14:49,117 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:14:52,887 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_07d845c7-6f63-46b3-90c5-95b5c0c306cb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402539,402552] [2022-11-03 02:14:52,891 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_07d845c7-6f63-46b3-90c5-95b5c0c306cb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402684,402697] [2022-11-03 02:14:52,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:14:52,998 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:14:53,489 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_07d845c7-6f63-46b3-90c5-95b5c0c306cb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402539,402552] [2022-11-03 02:14:53,490 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_07d845c7-6f63-46b3-90c5-95b5c0c306cb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402684,402697] [2022-11-03 02:14:53,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:14:53,702 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:14:53,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:53 WrapperNode [2022-11-03 02:14:53,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:14:53,704 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:14:53,704 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:14:53,704 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:14:53,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:53" (1/1) ... [2022-11-03 02:14:53,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:53" (1/1) ... [2022-11-03 02:14:54,141 INFO L138 Inliner]: procedures = 551, calls = 3616, calls flagged for inlining = 270, calls inlined = 246, statements flattened = 8919 [2022-11-03 02:14:54,142 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:14:54,143 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:14:54,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:14:54,144 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:14:54,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:53" (1/1) ... [2022-11-03 02:14:54,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:53" (1/1) ... [2022-11-03 02:14:54,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:53" (1/1) ... [2022-11-03 02:14:54,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:53" (1/1) ... [2022-11-03 02:14:54,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:53" (1/1) ... [2022-11-03 02:14:54,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:53" (1/1) ... [2022-11-03 02:14:54,519 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:53" (1/1) ... [2022-11-03 02:14:54,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:53" (1/1) ... [2022-11-03 02:14:54,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:14:54,592 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:14:54,592 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:14:54,592 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:14:54,593 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:53" (1/1) ... [2022-11-03 02:14:54,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:14:54,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d845c7-6f63-46b3-90c5-95b5c0c306cb/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:14:54,628 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d845c7-6f63-46b3-90c5-95b5c0c306cb/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:14:54,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d845c7-6f63-46b3-90c5-95b5c0c306cb/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:14:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_evict_inode [2022-11-03 02:14:54,744 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_evict_inode [2022-11-03 02:14:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure dput [2022-11-03 02:14:54,744 INFO L138 BoogieDeclarations]: Found implementation of procedure dput [2022-11-03 02:14:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:14:54,744 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:14:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_unlink [2022-11-03 02:14:54,745 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_unlink [2022-11-03 02:14:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_get_inode [2022-11-03 02:14:54,745 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_get_inode [2022-11-03 02:14:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-03 02:14:54,745 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-03 02:14:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:14:54,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:14:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_lseek [2022-11-03 02:14:54,746 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_lseek [2022-11-03 02:14:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure do_expire_wait [2022-11-03 02:14:54,746 INFO L138 BoogieDeclarations]: Found implementation of procedure do_expire_wait [2022-11-03 02:14:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-03 02:14:54,747 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-03 02:14:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure dget [2022-11-03 02:14:54,747 INFO L138 BoogieDeclarations]: Found implementation of procedure dget [2022-11-03 02:14:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure lock_release [2022-11-03 02:14:54,747 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_release [2022-11-03 02:14:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure current_kernel_time [2022-11-03 02:14:54,748 INFO L138 BoogieDeclarations]: Found implementation of procedure current_kernel_time [2022-11-03 02:14:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2022-11-03 02:14:54,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2022-11-03 02:14:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_expire_indirect [2022-11-03 02:14:54,749 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_expire_indirect [2022-11-03 02:14:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure new_encode_dev [2022-11-03 02:14:54,749 INFO L138 BoogieDeclarations]: Found implementation of procedure new_encode_dev [2022-11-03 02:14:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure managed_dentry_clear_managed [2022-11-03 02:14:54,749 INFO L138 BoogieDeclarations]: Found implementation of procedure managed_dentry_clear_managed [2022-11-03 02:14:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure from_kgid_munged [2022-11-03 02:14:54,750 INFO L138 BoogieDeclarations]: Found implementation of procedure from_kgid_munged [2022-11-03 02:14:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure follow_down_one [2022-11-03 02:14:54,750 INFO L138 BoogieDeclarations]: Found implementation of procedure follow_down_one [2022-11-03 02:14:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_show_options [2022-11-03 02:14:54,750 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_show_options [2022-11-03 02:14:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure __autofs4_add_expiring [2022-11-03 02:14:54,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __autofs4_add_expiring [2022-11-03 02:14:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-03 02:14:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_expire_wait [2022-11-03 02:14:54,752 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_expire_wait [2022-11-03 02:14:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_dev_ioctl [2022-11-03 02:14:54,752 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_dev_ioctl [2022-11-03 02:14:54,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 02:14:54,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 02:14:54,754 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-03 02:14:54,754 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-03 02:14:54,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 02:14:54,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 02:14:54,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:14:54,755 INFO L130 BoogieDeclarations]: Found specification of procedure d_count [2022-11-03 02:14:54,755 INFO L138 BoogieDeclarations]: Found implementation of procedure d_count [2022-11-03 02:14:54,755 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-03 02:14:54,756 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-03 02:14:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_63 [2022-11-03 02:14:54,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_63 [2022-11-03 02:14:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure from_kuid_munged [2022-11-03 02:14:54,757 INFO L138 BoogieDeclarations]: Found implementation of procedure from_kuid_munged [2022-11-03 02:14:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-03 02:14:54,757 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-03 02:14:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 02:14:54,770 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 02:14:54,770 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2022-11-03 02:14:54,770 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2022-11-03 02:14:54,771 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_oz_mode [2022-11-03 02:14:54,771 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_oz_mode [2022-11-03 02:14:54,772 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_do_expire_multi [2022-11-03 02:14:54,772 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_do_expire_multi [2022-11-03 02:14:54,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_NOT_ARG_SIGN [2022-11-03 02:14:54,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_NOT_ARG_SIGN [2022-11-03 02:14:54,772 INFO L130 BoogieDeclarations]: Found specification of procedure __task_pid_nr_ns [2022-11-03 02:14:54,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __task_pid_nr_ns [2022-11-03 02:14:54,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_57 [2022-11-03 02:14:54,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_57 [2022-11-03 02:14:54,773 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 02:14:54,773 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 02:14:54,774 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_sbi [2022-11-03 02:14:54,774 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_sbi [2022-11-03 02:14:54,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 02:14:54,774 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-03 02:14:54,775 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-03 02:14:54,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_siglock_of_sighand_struct [2022-11-03 02:14:54,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_siglock_of_sighand_struct [2022-11-03 02:14:54,776 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_new_ino [2022-11-03 02:14:54,776 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_new_ino [2022-11-03 02:14:54,776 INFO L130 BoogieDeclarations]: Found specification of procedure simple_empty [2022-11-03 02:14:54,777 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_empty [2022-11-03 02:14:54,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 02:14:54,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 02:14:54,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 02:14:54,777 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_can_expire [2022-11-03 02:14:54,778 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_can_expire [2022-11-03 02:14:54,778 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dentry_ino [2022-11-03 02:14:54,778 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dentry_ino [2022-11-03 02:14:54,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:14:54,778 INFO L130 BoogieDeclarations]: Found specification of procedure fget [2022-11-03 02:14:54,778 INFO L138 BoogieDeclarations]: Found implementation of procedure fget [2022-11-03 02:14:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-03 02:14:54,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-03 02:14:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_open [2022-11-03 02:14:54,779 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_open [2022-11-03 02:14:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 02:14:54,780 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 02:14:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_rmdir [2022-11-03 02:14:54,781 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_rmdir [2022-11-03 02:14:54,783 INFO L130 BoogieDeclarations]: Found specification of procedure may_umount [2022-11-03 02:14:54,784 INFO L138 BoogieDeclarations]: Found implementation of procedure may_umount [2022-11-03 02:14:54,784 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_dev_ioctl_exit [2022-11-03 02:14:54,784 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_dev_ioctl_exit [2022-11-03 02:14:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-03 02:14:54,785 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-03 02:14:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 02:14:54,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 02:14:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 02:14:54,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 02:14:54,792 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_open [2022-11-03 02:14:54,792 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_open [2022-11-03 02:14:54,792 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-03 02:14:54,792 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-03 02:14:54,792 INFO L130 BoogieDeclarations]: Found specification of procedure clear_nlink [2022-11-03 02:14:54,792 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_nlink [2022-11-03 02:14:54,793 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_type_trigger [2022-11-03 02:14:54,793 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_type_trigger [2022-11-03 02:14:54,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:14:54,793 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2022-11-03 02:14:54,793 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2022-11-03 02:14:54,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-03 02:14:54,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-03 02:14:54,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 02:14:54,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 02:14:54,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-11-03 02:14:54,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-11-03 02:14:54,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-03 02:14:54,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-03 02:14:54,794 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2022-11-03 02:14:54,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-03 02:14:54,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-03 02:14:54,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:14:54,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 02:14:54,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 02:14:54,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:14:54,795 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 02:14:54,796 INFO L130 BoogieDeclarations]: Found specification of procedure simple_positive [2022-11-03 02:14:54,796 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_positive [2022-11-03 02:14:54,796 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-03 02:14:54,796 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-03 02:14:54,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-03 02:14:54,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-03 02:14:54,796 INFO L130 BoogieDeclarations]: Found specification of procedure path_get [2022-11-03 02:14:54,797 INFO L138 BoogieDeclarations]: Found implementation of procedure path_get [2022-11-03 02:14:54,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-03 02:14:54,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-03 02:14:54,797 INFO L130 BoogieDeclarations]: Found specification of procedure dget_dlock [2022-11-03 02:14:54,797 INFO L138 BoogieDeclarations]: Found implementation of procedure dget_dlock [2022-11-03 02:14:54,797 INFO L130 BoogieDeclarations]: Found specification of procedure d_lookup [2022-11-03 02:14:54,797 INFO L138 BoogieDeclarations]: Found implementation of procedure d_lookup [2022-11-03 02:14:54,797 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-03 02:14:54,798 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-03 02:14:54,798 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-03 02:14:54,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-03 02:14:54,798 INFO L130 BoogieDeclarations]: Found specification of procedure recalc_sigpending [2022-11-03 02:14:54,798 INFO L138 BoogieDeclarations]: Found implementation of procedure recalc_sigpending [2022-11-03 02:14:54,814 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-03 02:14:54,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-03 02:14:54,814 INFO L130 BoogieDeclarations]: Found specification of procedure d_drop [2022-11-03 02:14:54,815 INFO L138 BoogieDeclarations]: Found implementation of procedure d_drop [2022-11-03 02:14:54,815 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_mount [2022-11-03 02:14:54,815 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_mount [2022-11-03 02:14:54,815 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_type_indirect [2022-11-03 02:14:54,815 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_type_indirect [2022-11-03 02:14:54,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:14:54,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:14:54,816 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_mount_wait [2022-11-03 02:14:54,816 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_mount_wait [2022-11-03 02:14:54,816 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-03 02:14:54,816 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-03 02:14:54,816 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_ioctl [2022-11-03 02:14:54,816 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_ioctl [2022-11-03 02:14:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-03 02:14:54,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-03 02:14:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure complete_all [2022-11-03 02:14:54,818 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_all [2022-11-03 02:14:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2022-11-03 02:14:54,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2022-11-03 02:14:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 02:14:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 02:14:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_wait_release [2022-11-03 02:14:54,819 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_wait_release [2022-11-03 02:14:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:14:54,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:14:54,820 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_ioctl_unlocked [2022-11-03 02:14:54,820 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_ioctl_unlocked [2022-11-03 02:14:54,820 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2022-11-03 02:14:54,820 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2022-11-03 02:14:54,820 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-03 02:14:54,820 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-03 02:14:54,820 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_compat_ioctl [2022-11-03 02:14:54,821 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_compat_ioctl [2022-11-03 02:14:54,821 INFO L130 BoogieDeclarations]: Found specification of procedure read_seqretry [2022-11-03 02:14:54,821 INFO L138 BoogieDeclarations]: Found implementation of procedure read_seqretry [2022-11-03 02:14:54,821 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-11-03 02:14:54,821 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-11-03 02:14:54,821 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-03 02:14:54,822 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-03 02:14:54,822 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_readdir [2022-11-03 02:14:54,822 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_readdir [2022-11-03 02:14:54,822 INFO L130 BoogieDeclarations]: Found specification of procedure d_instantiate [2022-11-03 02:14:54,822 INFO L138 BoogieDeclarations]: Found implementation of procedure d_instantiate [2022-11-03 02:14:54,822 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 02:14:54,822 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 02:14:54,823 INFO L130 BoogieDeclarations]: Found specification of procedure may_umount_tree [2022-11-03 02:14:54,823 INFO L138 BoogieDeclarations]: Found implementation of procedure may_umount_tree [2022-11-03 02:14:54,823 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-03 02:14:54,823 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-03 02:14:54,823 INFO L130 BoogieDeclarations]: Found specification of procedure simple_statfs [2022-11-03 02:14:54,823 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_statfs [2022-11-03 02:14:54,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 02:14:54,823 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 02:14:54,824 INFO L130 BoogieDeclarations]: Found specification of procedure get_task_pid [2022-11-03 02:14:54,824 INFO L138 BoogieDeclarations]: Found implementation of procedure get_task_pid [2022-11-03 02:14:54,824 INFO L130 BoogieDeclarations]: Found specification of procedure path_put [2022-11-03 02:14:54,824 INFO L138 BoogieDeclarations]: Found implementation of procedure path_put [2022-11-03 02:14:54,824 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_mount_busy [2022-11-03 02:14:54,824 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_mount_busy [2022-11-03 02:14:54,824 INFO L130 BoogieDeclarations]: Found specification of procedure d_unhashed [2022-11-03 02:14:54,825 INFO L138 BoogieDeclarations]: Found implementation of procedure d_unhashed [2022-11-03 02:14:54,825 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-03 02:14:54,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-03 02:14:54,825 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_kill_sb [2022-11-03 02:14:54,825 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_kill_sb [2022-11-03 02:14:54,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:14:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 02:14:54,830 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 02:14:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure generic_read_dir [2022-11-03 02:14:54,830 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_read_dir [2022-11-03 02:14:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-03 02:14:54,831 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-03 02:14:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure managed_dentry_set_managed [2022-11-03 02:14:54,831 INFO L138 BoogieDeclarations]: Found implementation of procedure managed_dentry_set_managed [2022-11-03 02:14:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:14:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-11-03 02:14:54,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-11-03 02:14:54,833 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2022-11-03 02:14:54,833 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2022-11-03 02:14:54,833 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-03 02:14:54,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-03 02:14:54,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:14:54,834 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-03 02:14:54,834 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-03 02:14:54,834 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 02:14:54,834 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 02:14:54,834 INFO L130 BoogieDeclarations]: Found specification of procedure find_autofs_mount [2022-11-03 02:14:54,834 INFO L138 BoogieDeclarations]: Found implementation of procedure find_autofs_mount [2022-11-03 02:14:54,834 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-03 02:14:54,834 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-03 02:14:54,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 02:14:54,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 02:14:54,835 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_close [2022-11-03 02:14:54,835 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_close [2022-11-03 02:14:54,835 INFO L130 BoogieDeclarations]: Found specification of procedure ns_of_pid [2022-11-03 02:14:54,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_of_pid [2022-11-03 02:14:54,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 02:14:54,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 02:14:54,836 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-03 02:14:54,836 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-03 02:14:54,836 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_clean_ino [2022-11-03 02:14:54,836 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_clean_ino [2022-11-03 02:14:54,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_86 [2022-11-03 02:14:54,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_86 [2022-11-03 02:14:54,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_64 [2022-11-03 02:14:54,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_64 [2022-11-03 02:14:54,837 INFO L130 BoogieDeclarations]: Found specification of procedure kern_path_mountpoint [2022-11-03 02:14:54,837 INFO L138 BoogieDeclarations]: Found implementation of procedure kern_path_mountpoint [2022-11-03 02:14:54,837 INFO L130 BoogieDeclarations]: Found specification of procedure get_next_positive_dentry [2022-11-03 02:14:54,837 INFO L138 BoogieDeclarations]: Found implementation of procedure get_next_positive_dentry [2022-11-03 02:14:54,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_58 [2022-11-03 02:14:54,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_58 [2022-11-03 02:14:54,837 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 02:14:54,838 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 02:14:54,838 INFO L130 BoogieDeclarations]: Found specification of procedure __managed_dentry_set_managed [2022-11-03 02:14:54,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __managed_dentry_set_managed [2022-11-03 02:14:54,838 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_wait [2022-11-03 02:14:54,838 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_wait [2022-11-03 02:14:54,838 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_find_wait [2022-11-03 02:14:54,838 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_find_wait [2022-11-03 02:14:54,839 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-11-03 02:14:54,839 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-11-03 02:14:54,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_exit_autofs4_fs_8_2 [2022-11-03 02:14:54,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_exit_autofs4_fs_8_2 [2022-11-03 02:14:54,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:14:54,839 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dentry_release [2022-11-03 02:14:54,839 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dentry_release [2022-11-03 02:14:54,839 INFO L130 BoogieDeclarations]: Found specification of procedure task_pgrp_nr [2022-11-03 02:14:54,840 INFO L138 BoogieDeclarations]: Found implementation of procedure task_pgrp_nr [2022-11-03 02:14:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:14:54,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:14:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_87 [2022-11-03 02:14:54,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_87 [2022-11-03 02:14:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure uid_eq [2022-11-03 02:14:54,840 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_eq [2022-11-03 02:14:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_symlink [2022-11-03 02:14:54,841 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_symlink [2022-11-03 02:14:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2022-11-03 02:14:54,841 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2022-11-03 02:14:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure lock_acquire [2022-11-03 02:14:54,841 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_acquire [2022-11-03 02:14:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-03 02:14:54,841 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-03 02:14:54,854 INFO L130 BoogieDeclarations]: Found specification of procedure d_mountpoint [2022-11-03 02:14:54,854 INFO L138 BoogieDeclarations]: Found implementation of procedure d_mountpoint [2022-11-03 02:14:54,854 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-03 02:14:54,854 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-03 02:14:54,855 INFO L130 BoogieDeclarations]: Found specification of procedure have_submounts [2022-11-03 02:14:54,855 INFO L138 BoogieDeclarations]: Found implementation of procedure have_submounts [2022-11-03 02:14:54,855 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-11-03 02:14:54,855 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-11-03 02:14:54,855 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-03 02:14:54,855 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-03 02:14:54,855 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-03 02:14:54,856 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-03 02:14:54,856 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-03 02:14:54,856 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-03 02:14:54,856 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_prepare_pipe [2022-11-03 02:14:54,856 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_prepare_pipe [2022-11-03 02:14:54,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 02:14:54,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 02:14:54,857 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_del_active [2022-11-03 02:14:54,857 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_del_active [2022-11-03 02:14:54,857 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 02:14:54,857 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 02:14:54,857 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 02:14:54,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 02:14:54,857 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-11-03 02:14:54,857 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-11-03 02:14:54,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:14:54,858 INFO L130 BoogieDeclarations]: Found specification of procedure d_add [2022-11-03 02:14:54,858 INFO L138 BoogieDeclarations]: Found implementation of procedure d_add [2022-11-03 02:14:54,858 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_catatonic_mode [2022-11-03 02:14:54,858 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_catatonic_mode [2022-11-03 02:14:54,858 INFO L130 BoogieDeclarations]: Found specification of procedure gid_eq [2022-11-03 02:14:54,858 INFO L138 BoogieDeclarations]: Found implementation of procedure gid_eq [2022-11-03 02:14:54,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 02:14:54,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 02:14:54,859 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-03 02:14:54,859 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2022-11-03 02:14:54,859 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2022-11-03 02:14:56,235 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:14:56,239 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:14:56,590 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:14:57,363 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint switch_break: call ULTIMATE.dealloc(~#descriptor~12#1.base, ~#descriptor~12#1.offset);havoc ~#descriptor~12#1.base, ~#descriptor~12#1.offset; [2022-11-03 02:15:05,544 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 02:15:05,795 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:15:07,805 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:15:07,806 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-03 02:15:07,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:15:07 BoogieIcfgContainer [2022-11-03 02:15:07,813 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:15:07,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:15:07,816 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:15:07,819 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:15:07,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:14:48" (1/3) ... [2022-11-03 02:15:07,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3465a5d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:15:07, skipping insertion in model container [2022-11-03 02:15:07,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:53" (2/3) ... [2022-11-03 02:15:07,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3465a5d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:15:07, skipping insertion in model container [2022-11-03 02:15:07,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:15:07" (3/3) ... [2022-11-03 02:15:07,824 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i [2022-11-03 02:15:07,844 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:15:07,844 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:15:07,982 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:15:07,993 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46b677c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:15:07,993 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:15:08,008 INFO L276 IsEmpty]: Start isEmpty. Operand has 2631 states, 1544 states have (on average 1.3128238341968912) internal successors, (2027), 1594 states have internal predecessors, (2027), 922 states have call successors, (922), 165 states have call predecessors, (922), 164 states have return successors, (911), 905 states have call predecessors, (911), 911 states have call successors, (911) [2022-11-03 02:15:08,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2022-11-03 02:15:08,093 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:15:08,094 INFO L195 NwaCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:15:08,095 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:15:08,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:15:08,100 INFO L85 PathProgramCache]: Analyzing trace with hash 601217078, now seen corresponding path program 1 times [2022-11-03 02:15:08,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:15:08,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876112425] [2022-11-03 02:15:08,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:08,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:15:08,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:15:09,499 INFO L134 CoverageAnalysis]: Checked inductivity of 7665 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7665 trivial. 0 not checked. [2022-11-03 02:15:09,500 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:15:09,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876112425] [2022-11-03 02:15:09,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876112425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:15:09,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:15:09,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:15:09,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498457769] [2022-11-03 02:15:09,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:15:09,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:15:09,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:15:09,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:15:09,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:15:09,556 INFO L87 Difference]: Start difference. First operand has 2631 states, 1544 states have (on average 1.3128238341968912) internal successors, (2027), 1594 states have internal predecessors, (2027), 922 states have call successors, (922), 165 states have call predecessors, (922), 164 states have return successors, (911), 905 states have call predecessors, (911), 911 states have call successors, (911) Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2022-11-03 02:15:11,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:15,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:17,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:18,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:15:18,411 INFO L93 Difference]: Finished difference Result 7224 states and 10638 transitions. [2022-11-03 02:15:18,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:15:18,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) Word has length 531 [2022-11-03 02:15:18,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:15:18,464 INFO L225 Difference]: With dead ends: 7224 [2022-11-03 02:15:18,465 INFO L226 Difference]: Without dead ends: 4619 [2022-11-03 02:15:18,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:15:18,489 INFO L413 NwaCegarLoop]: 5189 mSDtfsCounter, 2987 mSDsluCounter, 3808 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2989 SdHoareTripleChecker+Valid, 8620 SdHoareTripleChecker+Invalid, 939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:15:18,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2989 Valid, 8620 Invalid, 939 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 929 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2022-11-03 02:15:18,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4619 states. [2022-11-03 02:15:18,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4619 to 4615. [2022-11-03 02:15:18,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4615 states, 2730 states have (on average 1.3054945054945055) internal successors, (3564), 2810 states have internal predecessors, (3564), 1577 states have call successors, (1577), 307 states have call predecessors, (1577), 307 states have return successors, (1579), 1564 states have call predecessors, (1579), 1577 states have call successors, (1579) [2022-11-03 02:15:18,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4615 states to 4615 states and 6720 transitions. [2022-11-03 02:15:18,857 INFO L78 Accepts]: Start accepts. Automaton has 4615 states and 6720 transitions. Word has length 531 [2022-11-03 02:15:18,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:15:18,862 INFO L495 AbstractCegarLoop]: Abstraction has 4615 states and 6720 transitions. [2022-11-03 02:15:18,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2022-11-03 02:15:18,863 INFO L276 IsEmpty]: Start isEmpty. Operand 4615 states and 6720 transitions. [2022-11-03 02:15:18,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2022-11-03 02:15:18,903 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:15:18,903 INFO L195 NwaCegarLoop]: trace histogram [46, 44, 44, 44, 44, 44, 44, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:15:18,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:15:18,904 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:15:18,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:15:18,905 INFO L85 PathProgramCache]: Analyzing trace with hash 2125938919, now seen corresponding path program 1 times [2022-11-03 02:15:18,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:15:18,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80200705] [2022-11-03 02:15:18,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:18,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:15:19,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:15:19,808 INFO L134 CoverageAnalysis]: Checked inductivity of 7764 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7761 trivial. 0 not checked. [2022-11-03 02:15:19,809 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:15:19,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80200705] [2022-11-03 02:15:19,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80200705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:15:19,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:15:19,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:15:19,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079578084] [2022-11-03 02:15:19,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:15:19,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:15:19,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:15:19,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:15:19,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:15:19,815 INFO L87 Difference]: Start difference. First operand 4615 states and 6720 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2022-11-03 02:15:22,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:24,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:26,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:28,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:29,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:15:29,584 INFO L93 Difference]: Finished difference Result 11131 states and 16179 transitions. [2022-11-03 02:15:29,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:15:29,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) Word has length 549 [2022-11-03 02:15:29,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:15:29,642 INFO L225 Difference]: With dead ends: 11131 [2022-11-03 02:15:29,642 INFO L226 Difference]: Without dead ends: 6605 [2022-11-03 02:15:29,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:15:29,673 INFO L413 NwaCegarLoop]: 4903 mSDtfsCounter, 2896 mSDsluCounter, 3694 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2901 SdHoareTripleChecker+Valid, 8230 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:15:29,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2901 Valid, 8230 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 908 Invalid, 3 Unknown, 0 Unchecked, 9.3s Time] [2022-11-03 02:15:29,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6605 states. [2022-11-03 02:15:30,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6605 to 6602. [2022-11-03 02:15:30,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6602 states, 3903 states have (on average 1.3038688188572893) internal successors, (5089), 4014 states have internal predecessors, (5089), 2243 states have call successors, (2243), 455 states have call predecessors, (2243), 455 states have return successors, (2250), 2224 states have call predecessors, (2250), 2243 states have call successors, (2250) [2022-11-03 02:15:30,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6602 states to 6602 states and 9582 transitions. [2022-11-03 02:15:30,093 INFO L78 Accepts]: Start accepts. Automaton has 6602 states and 9582 transitions. Word has length 549 [2022-11-03 02:15:30,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:15:30,094 INFO L495 AbstractCegarLoop]: Abstraction has 6602 states and 9582 transitions. [2022-11-03 02:15:30,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2022-11-03 02:15:30,095 INFO L276 IsEmpty]: Start isEmpty. Operand 6602 states and 9582 transitions. [2022-11-03 02:15:30,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2022-11-03 02:15:30,127 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:15:30,127 INFO L195 NwaCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:15:30,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:15:30,128 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:15:30,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:15:30,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1415040863, now seen corresponding path program 1 times [2022-11-03 02:15:30,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:15:30,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143847896] [2022-11-03 02:15:30,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:30,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:15:30,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:15:30,984 INFO L134 CoverageAnalysis]: Checked inductivity of 7660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7660 trivial. 0 not checked. [2022-11-03 02:15:30,984 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:15:30,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143847896] [2022-11-03 02:15:30,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143847896] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:15:30,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:15:30,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:15:30,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988875644] [2022-11-03 02:15:30,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:15:30,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:15:30,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:15:30,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:15:30,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:15:31,000 INFO L87 Difference]: Start difference. First operand 6602 states and 9582 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-03 02:15:33,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:37,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:39,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:15:39,570 INFO L93 Difference]: Finished difference Result 17231 states and 24958 transitions. [2022-11-03 02:15:39,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:15:39,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 544 [2022-11-03 02:15:39,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:15:39,653 INFO L225 Difference]: With dead ends: 17231 [2022-11-03 02:15:39,654 INFO L226 Difference]: Without dead ends: 10718 [2022-11-03 02:15:39,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:15:39,699 INFO L413 NwaCegarLoop]: 5059 mSDtfsCounter, 3211 mSDsluCounter, 3723 mSDsCounter, 0 mSdLazyCounter, 946 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3213 SdHoareTripleChecker+Valid, 8410 SdHoareTripleChecker+Invalid, 961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 946 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:15:39,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3213 Valid, 8410 Invalid, 961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 946 Invalid, 2 Unknown, 0 Unchecked, 7.9s Time] [2022-11-03 02:15:39,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10718 states. [2022-11-03 02:15:40,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10718 to 10712. [2022-11-03 02:15:40,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10712 states, 6350 states have (on average 1.3022047244094488) internal successors, (8269), 6534 states have internal predecessors, (8269), 3596 states have call successors, (3596), 765 states have call predecessors, (3596), 765 states have return successors, (3609), 3565 states have call predecessors, (3609), 3596 states have call successors, (3609) [2022-11-03 02:15:40,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10712 states to 10712 states and 15474 transitions. [2022-11-03 02:15:40,444 INFO L78 Accepts]: Start accepts. Automaton has 10712 states and 15474 transitions. Word has length 544 [2022-11-03 02:15:40,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:15:40,446 INFO L495 AbstractCegarLoop]: Abstraction has 10712 states and 15474 transitions. [2022-11-03 02:15:40,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-03 02:15:40,447 INFO L276 IsEmpty]: Start isEmpty. Operand 10712 states and 15474 transitions. [2022-11-03 02:15:40,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2022-11-03 02:15:40,472 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:15:40,472 INFO L195 NwaCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:15:40,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:15:40,473 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:15:40,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:15:40,474 INFO L85 PathProgramCache]: Analyzing trace with hash 2051201321, now seen corresponding path program 1 times [2022-11-03 02:15:40,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:15:40,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310642945] [2022-11-03 02:15:40,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:40,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:15:40,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:15:41,067 INFO L134 CoverageAnalysis]: Checked inductivity of 7660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7660 trivial. 0 not checked. [2022-11-03 02:15:41,067 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:15:41,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310642945] [2022-11-03 02:15:41,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310642945] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:15:41,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:15:41,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:15:41,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146391217] [2022-11-03 02:15:41,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:15:41,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:15:41,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:15:41,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:15:41,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:15:41,070 INFO L87 Difference]: Start difference. First operand 10712 states and 15474 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-03 02:15:43,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:47,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:48,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:15:48,123 INFO L93 Difference]: Finished difference Result 28038 states and 40357 transitions. [2022-11-03 02:15:48,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:15:48,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 546 [2022-11-03 02:15:48,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:15:48,244 INFO L225 Difference]: With dead ends: 28038 [2022-11-03 02:15:48,245 INFO L226 Difference]: Without dead ends: 17415 [2022-11-03 02:15:48,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:15:48,306 INFO L413 NwaCegarLoop]: 5110 mSDtfsCounter, 3195 mSDsluCounter, 3722 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3199 SdHoareTripleChecker+Valid, 8457 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:15:48,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3199 Valid, 8457 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 959 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-11-03 02:15:48,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17415 states. [2022-11-03 02:15:49,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17415 to 17411. [2022-11-03 02:15:49,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17411 states, 10362 states have (on average 1.2996525767226403) internal successors, (13467), 10675 states have internal predecessors, (13467), 5734 states have call successors, (5734), 1314 states have call predecessors, (5734), 1314 states have return successors, (5762), 5681 states have call predecessors, (5762), 5734 states have call successors, (5762) [2022-11-03 02:15:49,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17411 states to 17411 states and 24963 transitions. [2022-11-03 02:15:49,326 INFO L78 Accepts]: Start accepts. Automaton has 17411 states and 24963 transitions. Word has length 546 [2022-11-03 02:15:49,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:15:49,328 INFO L495 AbstractCegarLoop]: Abstraction has 17411 states and 24963 transitions. [2022-11-03 02:15:49,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-03 02:15:49,328 INFO L276 IsEmpty]: Start isEmpty. Operand 17411 states and 24963 transitions. [2022-11-03 02:15:49,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 560 [2022-11-03 02:15:49,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:15:49,357 INFO L195 NwaCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:15:49,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:15:49,357 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:15:49,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:15:49,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1134255638, now seen corresponding path program 1 times [2022-11-03 02:15:49,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:15:49,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344723102] [2022-11-03 02:15:49,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:49,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:15:49,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:15:50,001 INFO L134 CoverageAnalysis]: Checked inductivity of 7660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7660 trivial. 0 not checked. [2022-11-03 02:15:50,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:15:50,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344723102] [2022-11-03 02:15:50,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344723102] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:15:50,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:15:50,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:15:50,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693872532] [2022-11-03 02:15:50,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:15:50,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:15:50,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:15:50,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:15:50,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:15:50,006 INFO L87 Difference]: Start difference. First operand 17411 states and 24963 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) [2022-11-03 02:15:52,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:55,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:57,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:59,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:00,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:16:00,790 INFO L93 Difference]: Finished difference Result 47940 states and 68670 transitions. [2022-11-03 02:16:00,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:16:00,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) Word has length 559 [2022-11-03 02:16:00,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:16:00,977 INFO L225 Difference]: With dead ends: 47940 [2022-11-03 02:16:00,977 INFO L226 Difference]: Without dead ends: 30618 [2022-11-03 02:16:01,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:16:01,058 INFO L413 NwaCegarLoop]: 5082 mSDtfsCounter, 3062 mSDsluCounter, 3723 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3065 SdHoareTripleChecker+Valid, 8430 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 957 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:16:01,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3065 Valid, 8430 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 957 Invalid, 3 Unknown, 0 Unchecked, 9.6s Time] [2022-11-03 02:16:01,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30618 states. [2022-11-03 02:16:02,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30618 to 30610. [2022-11-03 02:16:02,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30610 states, 18218 states have (on average 1.2954770007684708) internal successors, (23601), 18792 states have internal predecessors, (23601), 10040 states have call successors, (10040), 2353 states have call predecessors, (10040), 2351 states have return successors, (10102), 9931 states have call predecessors, (10102), 10040 states have call successors, (10102) [2022-11-03 02:16:02,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30610 states to 30610 states and 43743 transitions. [2022-11-03 02:16:02,948 INFO L78 Accepts]: Start accepts. Automaton has 30610 states and 43743 transitions. Word has length 559 [2022-11-03 02:16:02,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:16:02,949 INFO L495 AbstractCegarLoop]: Abstraction has 30610 states and 43743 transitions. [2022-11-03 02:16:02,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) [2022-11-03 02:16:02,950 INFO L276 IsEmpty]: Start isEmpty. Operand 30610 states and 43743 transitions. [2022-11-03 02:16:02,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 603 [2022-11-03 02:16:02,988 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:16:02,989 INFO L195 NwaCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:16:02,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:16:02,989 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:16:02,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:16:02,990 INFO L85 PathProgramCache]: Analyzing trace with hash 218001604, now seen corresponding path program 1 times [2022-11-03 02:16:02,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:16:02,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854943842] [2022-11-03 02:16:02,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:02,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:16:03,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:03,663 INFO L134 CoverageAnalysis]: Checked inductivity of 7704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7704 trivial. 0 not checked. [2022-11-03 02:16:03,664 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:16:03,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854943842] [2022-11-03 02:16:03,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854943842] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:16:03,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:16:03,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:16:03,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497477320] [2022-11-03 02:16:03,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:16:03,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:16:03,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:16:03,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:16:03,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:16:03,667 INFO L87 Difference]: Start difference. First operand 30610 states and 43743 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2022-11-03 02:16:06,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:09,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:11,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:13,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:16:13,044 INFO L93 Difference]: Finished difference Result 84022 states and 119719 transitions. [2022-11-03 02:16:13,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:16:13,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) Word has length 602 [2022-11-03 02:16:13,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:16:13,535 INFO L225 Difference]: With dead ends: 84022 [2022-11-03 02:16:13,535 INFO L226 Difference]: Without dead ends: 53501 [2022-11-03 02:16:13,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:16:13,785 INFO L413 NwaCegarLoop]: 4704 mSDtfsCounter, 2964 mSDsluCounter, 3757 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2966 SdHoareTripleChecker+Valid, 8079 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:16:13,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2966 Valid, 8079 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 884 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-11-03 02:16:13,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53501 states. [2022-11-03 02:16:16,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53501 to 53467. [2022-11-03 02:16:16,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53467 states, 31808 states have (on average 1.291719064386318) internal successors, (41087), 32759 states have internal predecessors, (41087), 17389 states have call successors, (17389), 4273 states have call predecessors, (17389), 4269 states have return successors, (17515), 17200 states have call predecessors, (17515), 17389 states have call successors, (17515) [2022-11-03 02:16:17,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53467 states to 53467 states and 75991 transitions. [2022-11-03 02:16:17,347 INFO L78 Accepts]: Start accepts. Automaton has 53467 states and 75991 transitions. Word has length 602 [2022-11-03 02:16:17,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:16:17,348 INFO L495 AbstractCegarLoop]: Abstraction has 53467 states and 75991 transitions. [2022-11-03 02:16:17,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2022-11-03 02:16:17,348 INFO L276 IsEmpty]: Start isEmpty. Operand 53467 states and 75991 transitions. [2022-11-03 02:16:17,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 600 [2022-11-03 02:16:17,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:16:17,407 INFO L195 NwaCegarLoop]: trace histogram [49, 44, 44, 44, 44, 44, 44, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:16:17,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:16:17,407 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:16:17,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:16:17,408 INFO L85 PathProgramCache]: Analyzing trace with hash -183757121, now seen corresponding path program 1 times [2022-11-03 02:16:17,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:16:17,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572848448] [2022-11-03 02:16:17,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:17,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:16:17,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:18,204 INFO L134 CoverageAnalysis]: Checked inductivity of 8096 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8089 trivial. 0 not checked. [2022-11-03 02:16:18,204 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:16:18,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572848448] [2022-11-03 02:16:18,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572848448] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:16:18,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:16:18,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:16:18,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977500767] [2022-11-03 02:16:18,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:16:18,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:16:18,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:16:18,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:16:18,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:16:18,208 INFO L87 Difference]: Start difference. First operand 53467 states and 75991 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2022-11-03 02:16:20,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:22,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:27,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:29,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:16:29,741 INFO L93 Difference]: Finished difference Result 130621 states and 185610 transitions. [2022-11-03 02:16:29,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:16:29,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) Word has length 599 [2022-11-03 02:16:29,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:16:30,281 INFO L225 Difference]: With dead ends: 130621 [2022-11-03 02:16:30,281 INFO L226 Difference]: Without dead ends: 77383 [2022-11-03 02:16:30,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:16:30,739 INFO L413 NwaCegarLoop]: 6002 mSDtfsCounter, 2945 mSDsluCounter, 3742 mSDsCounter, 0 mSdLazyCounter, 1123 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2947 SdHoareTripleChecker+Valid, 9368 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1123 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:16:30,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2947 Valid, 9368 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1123 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2022-11-03 02:16:30,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77383 states. [2022-11-03 02:16:33,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77383 to 77349. [2022-11-03 02:16:33,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77349 states, 46077 states have (on average 1.2927273911061918) internal successors, (59565), 47424 states have internal predecessors, (59565), 25036 states have call successors, (25036), 6241 states have call predecessors, (25036), 6235 states have return successors, (25218), 24741 states have call predecessors, (25218), 25036 states have call successors, (25218) [2022-11-03 02:16:34,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77349 states to 77349 states and 109819 transitions. [2022-11-03 02:16:34,732 INFO L78 Accepts]: Start accepts. Automaton has 77349 states and 109819 transitions. Word has length 599 [2022-11-03 02:16:34,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:16:34,733 INFO L495 AbstractCegarLoop]: Abstraction has 77349 states and 109819 transitions. [2022-11-03 02:16:34,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2022-11-03 02:16:34,733 INFO L276 IsEmpty]: Start isEmpty. Operand 77349 states and 109819 transitions. [2022-11-03 02:16:34,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2022-11-03 02:16:34,803 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:16:34,803 INFO L195 NwaCegarLoop]: trace histogram [49, 44, 44, 44, 44, 44, 44, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:16:34,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:16:34,803 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:16:34,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:16:34,804 INFO L85 PathProgramCache]: Analyzing trace with hash -347327508, now seen corresponding path program 1 times [2022-11-03 02:16:34,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:16:34,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851984931] [2022-11-03 02:16:34,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:34,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:16:34,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:35,408 INFO L134 CoverageAnalysis]: Checked inductivity of 8053 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8050 trivial. 0 not checked. [2022-11-03 02:16:35,408 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:16:35,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851984931] [2022-11-03 02:16:35,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851984931] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:16:35,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:16:35,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:16:35,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753665846] [2022-11-03 02:16:35,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:16:35,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:16:35,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:16:35,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:16:35,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:16:35,411 INFO L87 Difference]: Start difference. First operand 77349 states and 109819 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (75), 2 states have call predecessors, (75), 1 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2022-11-03 02:16:38,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:40,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:44,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:48,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:16:48,673 INFO L93 Difference]: Finished difference Result 187262 states and 265727 transitions. [2022-11-03 02:16:48,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:16:48,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (75), 2 states have call predecessors, (75), 1 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) Word has length 609 [2022-11-03 02:16:48,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:16:49,317 INFO L225 Difference]: With dead ends: 187262 [2022-11-03 02:16:49,317 INFO L226 Difference]: Without dead ends: 110142 [2022-11-03 02:16:49,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:16:49,807 INFO L413 NwaCegarLoop]: 6238 mSDtfsCounter, 3192 mSDsluCounter, 3712 mSDsCounter, 0 mSdLazyCounter, 1170 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3196 SdHoareTripleChecker+Valid, 9575 SdHoareTripleChecker+Invalid, 1182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1170 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:16:49,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3196 Valid, 9575 Invalid, 1182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1170 Invalid, 3 Unknown, 0 Unchecked, 8.8s Time] [2022-11-03 02:16:49,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110142 states. [2022-11-03 02:16:54,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110142 to 110132. [2022-11-03 02:16:54,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110132 states, 65695 states have (on average 1.2916660324225588) internal successors, (84856), 67638 states have internal predecessors, (84856), 35421 states have call successors, (35421), 9027 states have call predecessors, (35421), 9015 states have return successors, (35703), 34984 states have call predecessors, (35703), 35421 states have call successors, (35703) [2022-11-03 02:16:54,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110132 states to 110132 states and 155980 transitions. [2022-11-03 02:16:54,831 INFO L78 Accepts]: Start accepts. Automaton has 110132 states and 155980 transitions. Word has length 609 [2022-11-03 02:16:54,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:16:54,832 INFO L495 AbstractCegarLoop]: Abstraction has 110132 states and 155980 transitions. [2022-11-03 02:16:54,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (75), 2 states have call predecessors, (75), 1 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2022-11-03 02:16:54,832 INFO L276 IsEmpty]: Start isEmpty. Operand 110132 states and 155980 transitions. [2022-11-03 02:16:54,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 612 [2022-11-03 02:16:54,900 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:16:54,901 INFO L195 NwaCegarLoop]: trace histogram [49, 44, 44, 44, 44, 44, 44, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:16:54,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:16:54,901 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:16:54,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:16:54,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1578866986, now seen corresponding path program 1 times [2022-11-03 02:16:54,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:16:54,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596691438] [2022-11-03 02:16:54,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:54,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:16:55,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:55,886 INFO L134 CoverageAnalysis]: Checked inductivity of 8053 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8050 trivial. 0 not checked. [2022-11-03 02:16:55,887 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:16:55,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596691438] [2022-11-03 02:16:55,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596691438] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:16:55,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:16:55,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:16:55,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426176872] [2022-11-03 02:16:55,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:16:55,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:16:55,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:16:55,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:16:55,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:16:55,890 INFO L87 Difference]: Start difference. First operand 110132 states and 155980 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 3 states have call successors, (75), 2 states have call predecessors, (75), 1 states have return successors, (69), 3 states have call predecessors, (69), 3 states have call successors, (69) [2022-11-03 02:16:58,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:02,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:04,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:08,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:12,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:17:12,747 INFO L93 Difference]: Finished difference Result 264665 states and 374516 transitions. [2022-11-03 02:17:12,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:17:12,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 3 states have call successors, (75), 2 states have call predecessors, (75), 1 states have return successors, (69), 3 states have call predecessors, (69), 3 states have call successors, (69) Word has length 611 [2022-11-03 02:17:12,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:17:13,632 INFO L225 Difference]: With dead ends: 264665 [2022-11-03 02:17:13,632 INFO L226 Difference]: Without dead ends: 154762 [2022-11-03 02:17:13,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:17:13,974 INFO L413 NwaCegarLoop]: 6257 mSDtfsCounter, 3206 mSDsluCounter, 3712 mSDsCounter, 0 mSdLazyCounter, 1164 mSolverCounterSat, 9 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3213 SdHoareTripleChecker+Valid, 9598 SdHoareTripleChecker+Invalid, 1177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1164 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:17:13,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3213 Valid, 9598 Invalid, 1177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1164 Invalid, 4 Unknown, 0 Unchecked, 10.8s Time] [2022-11-03 02:17:14,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154762 states.