./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/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_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/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_ca2013c1-6ba0-4a96-8c33-4156532dc384/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 7437c6fbbfb5f62948bcf71bcd273ee75a8686136d3aade9bfd2c415a67f0e82 --- 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 02:11:37,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:11:37,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:11:37,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:11:37,140 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:11:37,141 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:11:37,142 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:11:37,144 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:11:37,146 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:11:37,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:11:37,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:11:37,149 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:11:37,149 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:11:37,150 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:11:37,151 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:11:37,152 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:11:37,153 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:11:37,154 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:11:37,155 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:11:37,157 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:11:37,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:11:37,160 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:11:37,161 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:11:37,162 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:11:37,165 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:11:37,165 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:11:37,166 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:11:37,167 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:11:37,167 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:11:37,168 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:11:37,168 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:11:37,169 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:11:37,170 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:11:37,171 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:11:37,172 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:11:37,172 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:11:37,173 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:11:37,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:11:37,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:11:37,174 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:11:37,175 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:11:37,176 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:11:37,199 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:11:37,199 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:11:37,200 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:11:37,200 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:11:37,201 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:11:37,201 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:11:37,201 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:11:37,201 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:11:37,202 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:11:37,202 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:11:37,202 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:11:37,202 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:11:37,203 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:11:37,203 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:11:37,203 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:11:37,203 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:11:37,204 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:11:37,204 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:11:37,205 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:11:37,205 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:11:37,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:11:37,205 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:11:37,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:11:37,206 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:11:37,206 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:11:37,206 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:11:37,207 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:11:37,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:11:37,207 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:11:37,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:11:37,208 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:11:37,208 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:11:37,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:11:37,208 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:11:37,209 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:11:37,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:11:37,209 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:11:37,209 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:11:37,209 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_ca2013c1-6ba0-4a96-8c33-4156532dc384/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7437c6fbbfb5f62948bcf71bcd273ee75a8686136d3aade9bfd2c415a67f0e82 [2022-11-03 02:11:37,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:11:37,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:11:37,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:11:37,466 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:11:37,471 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:11:37,481 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-03 02:11:37,550 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/data/0d3969e3c/a362fd6d6e63426eaa61bd18efddf27a/FLAG7c7d4c602 [2022-11-03 02:11:38,866 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:11:38,868 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-03 02:11:38,958 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/data/0d3969e3c/a362fd6d6e63426eaa61bd18efddf27a/FLAG7c7d4c602 [2022-11-03 02:11:39,426 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/data/0d3969e3c/a362fd6d6e63426eaa61bd18efddf27a [2022-11-03 02:11:39,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:11:39,431 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:11:39,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:11:39,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:11:39,439 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:11:39,440 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:11:39" (1/1) ... [2022-11-03 02:11:39,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f8ceee3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:39, skipping insertion in model container [2022-11-03 02:11:39,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:11:39" (1/1) ... [2022-11-03 02:11:39,449 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:11:39,699 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:11:48,221 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_ca2013c1-6ba0-4a96-8c33-4156532dc384/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[901817,901830] [2022-11-03 02:11:48,224 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_ca2013c1-6ba0-4a96-8c33-4156532dc384/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[901983,901996] [2022-11-03 02:11:48,224 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_ca2013c1-6ba0-4a96-8c33-4156532dc384/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[902147,902160] [2022-11-03 02:11:48,225 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_ca2013c1-6ba0-4a96-8c33-4156532dc384/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[902312,902325] [2022-11-03 02:11:48,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:11:48,372 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:11:49,345 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_ca2013c1-6ba0-4a96-8c33-4156532dc384/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[901817,901830] [2022-11-03 02:11:49,345 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_ca2013c1-6ba0-4a96-8c33-4156532dc384/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[901983,901996] [2022-11-03 02:11:49,346 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_ca2013c1-6ba0-4a96-8c33-4156532dc384/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[902147,902160] [2022-11-03 02:11:49,346 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_ca2013c1-6ba0-4a96-8c33-4156532dc384/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[902312,902325] [2022-11-03 02:11:49,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:11:49,881 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:11:49,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:49 WrapperNode [2022-11-03 02:11:49,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:11:49,883 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:11:49,883 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:11:49,884 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:11:49,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:49" (1/1) ... [2022-11-03 02:11:50,369 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:49" (1/1) ... [2022-11-03 02:11:51,298 INFO L138 Inliner]: procedures = 716, calls = 16179, calls flagged for inlining = 391, calls inlined = 338, statements flattened = 29245 [2022-11-03 02:11:51,311 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:11:51,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:11:51,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:11:51,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:11:51,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:49" (1/1) ... [2022-11-03 02:11:51,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:49" (1/1) ... [2022-11-03 02:11:51,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:49" (1/1) ... [2022-11-03 02:11:51,704 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:49" (1/1) ... [2022-11-03 02:11:52,604 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:49" (1/1) ... [2022-11-03 02:11:52,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:49" (1/1) ... [2022-11-03 02:11:52,938 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:49" (1/1) ... [2022-11-03 02:11:52,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:49" (1/1) ... [2022-11-03 02:11:53,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:11:53,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:11:53,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:11:53,194 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:11:53,195 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:49" (1/1) ... [2022-11-03 02:11:53,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:11:53,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:11:53,222 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:11:53,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:11:53,266 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-03 02:11:53,267 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-03 02:11:53,267 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_fc_after_link_up [2022-11-03 02:11:53,267 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_fc_after_link_up [2022-11-03 02:11:53,267 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-03 02:11:53,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-03 02:11:53,267 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_collision_dist [2022-11-03 02:11:53,331 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_collision_dist [2022-11-03 02:11:53,331 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_ee_clk [2022-11-03 02:11:53,331 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_ee_clk [2022-11-03 02:11:53,331 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-11-03 02:11:53,331 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-11-03 02:11:53,331 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-03 02:11:53,331 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-03 02:11:53,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:11:53,332 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:11:53,332 INFO L130 BoogieDeclarations]: Found specification of procedure reg_pattern_test [2022-11-03 02:11:53,332 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_pattern_test [2022-11-03 02:11:53,332 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-03 02:11:53,332 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-03 02:11:53,332 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 02:11:53,332 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 02:11:53,332 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-03 02:11:53,332 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-03 02:11:53,333 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_eeprom [2022-11-03 02:11:53,333 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_eeprom [2022-11-03 02:11:53,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:11:53,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:11:53,333 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_manageability [2022-11-03 02:11:53,333 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_manageability [2022-11-03 02:11:53,333 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_in_ee_bits [2022-11-03 02:11:53,333 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_in_ee_bits [2022-11-03 02:11:53,333 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down_and_stop [2022-11-03 02:11:53,333 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down_and_stop [2022-11-03 02:11:53,334 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-03 02:11:53,334 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-03 02:11:53,334 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-11-03 02:11:53,334 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-11-03 02:11:53,334 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-03 02:11:53,334 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-03 02:11:53,334 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_unmap_and_free_tx_resource [2022-11-03 02:11:53,334 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_unmap_and_free_tx_resource [2022-11-03 02:11:53,334 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-03 02:11:53,334 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-03 02:11:53,335 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_get_info [2022-11-03 02:11:53,335 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_get_info [2022-11-03 02:11:53,335 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 02:11:53,335 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 02:11:53,335 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-03 02:11:53,335 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-03 02:11:53,335 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_do_read_eeprom [2022-11-03 02:11:53,335 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_do_read_eeprom [2022-11-03 02:11:53,335 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_rctl [2022-11-03 02:11:53,336 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_rctl [2022-11-03 02:11:53,336 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-03 02:11:53,336 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-03 02:11:53,336 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set [2022-11-03 02:11:53,336 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set [2022-11-03 02:11:53,336 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2022-11-03 02:11:53,336 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2022-11-03 02:11:53,336 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 02:11:53,336 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 02:11:53,336 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset [2022-11-03 02:11:53,337 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset [2022-11-03 02:11:53,337 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2022-11-03 02:11:53,337 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2022-11-03 02:11:53,337 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_eeprom_params [2022-11-03 02:11:53,337 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_eeprom_params [2022-11-03 02:11:53,337 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2022-11-03 02:11:53,337 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2022-11-03 02:11:53,337 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-03 02:11:53,337 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-03 02:11:53,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 02:11:53,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 02:11:53,338 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 02:11:53,338 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 02:11:53,338 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-03 02:11:53,338 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-03 02:11:53,338 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 02:11:53,338 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 02:11:53,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 02:11:53,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 02:11:53,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-03 02:11:53,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-03 02:11:53,341 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 02:11:53,342 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 02:11:53,342 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-03 02:11:53,342 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-03 02:11:53,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:11:53,343 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-03 02:11:53,343 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-03 02:11:53,343 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg [2022-11-03 02:11:53,343 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg [2022-11-03 02:11:53,343 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_speed_and_duplex [2022-11-03 02:11:53,343 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_speed_and_duplex [2022-11-03 02:11:53,344 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_standby_eeprom [2022-11-03 02:11:53,344 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_standby_eeprom [2022-11-03 02:11:53,344 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_bit [2022-11-03 02:11:53,344 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_bit [2022-11-03 02:11:53,345 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-03 02:11:53,345 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-03 02:11:53,345 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure_rx [2022-11-03 02:11:53,345 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure_rx [2022-11-03 02:11:53,346 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 02:11:53,346 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 02:11:53,349 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_hw_dev [2022-11-03 02:11:53,350 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_hw_dev [2022-11-03 02:11:53,350 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_stats [2022-11-03 02:11:53,350 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_stats [2022-11-03 02:11:53,350 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_validate_option [2022-11-03 02:11:53,351 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_validate_option [2022-11-03 02:11:53,351 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 02:11:53,352 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 02:11:53,352 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 02:11:53,356 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 02:11:53,356 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link [2022-11-03 02:11:53,356 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link [2022-11-03 02:11:53,356 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_irq [2022-11-03 02:11:53,356 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_irq [2022-11-03 02:11:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 02:11:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-03 02:11:53,357 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-03 02:11:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_link [2022-11-03 02:11:53,357 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_link [2022-11-03 02:11:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_vlan_mode [2022-11-03 02:11:53,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_vlan_mode [2022-11-03 02:11:53,358 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset [2022-11-03 02:11:53,358 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset [2022-11-03 02:11:53,358 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 02:11:53,358 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 02:11:53,358 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_dsp_after_link_change [2022-11-03 02:11:53,359 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_dsp_after_link_change [2022-11-03 02:11:53,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 02:11:53,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 02:11:53,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 02:11:53,359 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_maybe_stop_tx [2022-11-03 02:11:53,360 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_maybe_stop_tx [2022-11-03 02:11:53,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:11:53,360 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 02:11:53,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 02:11:53,360 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shutdown [2022-11-03 02:11:53,360 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shutdown [2022-11-03 02:11:53,360 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2022-11-03 02:11:53,361 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2022-11-03 02:11:53,361 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_used [2022-11-03 02:11:53,361 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_used [2022-11-03 02:11:53,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 02:11:53,361 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 02:11:53,361 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_disable_receiver [2022-11-03 02:11:53,361 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_disable_receiver [2022-11-03 02:11:53,362 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_kill_vid [2022-11-03 02:11:53,362 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_kill_vid [2022-11-03 02:11:53,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-03 02:11:53,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-03 02:11:53,362 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_force_mac_fc [2022-11-03 02:11:53,362 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_force_mac_fc [2022-11-03 02:11:53,362 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-03 02:11:53,363 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-03 02:11:53,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 02:11:53,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 02:11:53,363 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2022-11-03 02:11:53,363 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2022-11-03 02:11:53,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 02:11:53,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 02:11:53,364 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_leave_82542_rst [2022-11-03 02:11:53,364 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_leave_82542_rst [2022-11-03 02:11:53,364 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_has_link [2022-11-03 02:11:53,364 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_has_link [2022-11-03 02:11:53,365 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-03 02:11:53,365 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-03 02:11:53,366 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 02:11:53,366 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 02:11:53,366 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2022-11-03 02:11:53,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2022-11-03 02:11:53,366 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_tx_resources [2022-11-03 02:11:53,366 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_tx_resources [2022-11-03 02:11:53,366 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-03 02:11:53,367 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-03 02:11:53,367 INFO L130 BoogieDeclarations]: Found specification of procedure pci_wake_from_d3 [2022-11-03 02:11:53,367 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_wake_from_d3 [2022-11-03 02:11:53,367 INFO L130 BoogieDeclarations]: Found specification of procedure reg_set_and_check [2022-11-03 02:11:53,368 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_set_and_check [2022-11-03 02:11:53,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:11:53,368 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_netpoll [2022-11-03 02:11:53,368 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_netpoll [2022-11-03 02:11:53,368 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-03 02:11:53,368 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-03 02:11:53,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:11:53,369 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-03 02:11:53,369 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-03 02:11:53,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 02:11:53,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 02:11:53,369 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 02:11:53,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 02:11:53,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:11:53,370 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_rx_mode [2022-11-03 02:11:53,370 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_rx_mode [2022-11-03 02:11:53,370 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 02:11:53,371 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-03 02:11:53,371 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-03 02:11:53,371 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:11:53,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:11:53,371 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_open [2022-11-03 02:11:53,372 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_open [2022-11-03 02:11:53,372 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-03 02:11:53,372 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-03 02:11:53,372 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_hw_reset [2022-11-03 02:11:53,373 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_hw_reset [2022-11-03 02:11:53,373 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_vfta [2022-11-03 02:11:53,373 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_vfta [2022-11-03 02:11:53,374 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-03 02:11:53,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-03 02:11:53,374 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_remove [2022-11-03 02:11:53,374 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_remove [2022-11-03 02:11:53,374 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_ee_bits [2022-11-03 02:11:53,374 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_ee_bits [2022-11-03 02:11:53,375 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure [2022-11-03 02:11:53,375 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure [2022-11-03 02:11:53,375 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-03 02:11:53,375 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-03 02:11:53,375 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-03 02:11:53,375 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-03 02:11:53,375 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 02:11:53,375 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 02:11:53,376 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_cable_length [2022-11-03 02:11:53,376 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_cable_length [2022-11-03 02:11:53,376 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-03 02:11:53,376 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-03 02:11:53,376 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_ee_clk [2022-11-03 02:11:53,376 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_ee_clk [2022-11-03 02:11:53,376 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_rx_resources [2022-11-03 02:11:53,378 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_rx_resources [2022-11-03 02:11:53,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-03 02:11:53,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-03 02:11:53,382 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_add_vid [2022-11-03 02:11:53,382 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_add_vid [2022-11-03 02:11:53,382 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2022-11-03 02:11:53,382 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2022-11-03 02:11:53,382 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2022-11-03 02:11:53,382 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2022-11-03 02:11:53,382 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-03 02:11:53,382 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-03 02:11:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_write [2022-11-03 02:11:53,386 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_write [2022-11-03 02:11:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-03 02:11:53,387 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-03 02:11:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_resume [2022-11-03 02:11:53,387 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_resume [2022-11-03 02:11:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-03 02:11:53,387 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-03 02:11:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 02:11:53,387 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 02:11:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom [2022-11-03 02:11:53,388 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom [2022-11-03 02:11:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_enter_82542_rst [2022-11-03 02:11:53,388 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_enter_82542_rst [2022-11-03 02:11:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_acquire_eeprom [2022-11-03 02:11:53,388 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_acquire_eeprom [2022-11-03 02:11:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-03 02:11:53,388 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-03 02:11:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:11:53,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:11:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_down_phy [2022-11-03 02:11:53,389 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_down_phy [2022-11-03 02:11:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-03 02:11:53,389 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-03 02:11:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2022-11-03 02:11:53,390 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2022-11-03 02:11:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_spi_eeprom_ready [2022-11-03 02:11:53,390 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_spi_eeprom_ready [2022-11-03 02:11:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_clear_mwi [2022-11-03 02:11:53,390 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_clear_mwi [2022-11-03 02:11:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-03 02:11:53,390 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-03 02:11:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_up_phy [2022-11-03 02:11:53,391 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_up_phy [2022-11-03 02:11:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 02:11:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 02:11:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:11:53,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:11:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-03 02:11:53,391 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-03 02:11:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-03 02:11:53,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-03 02:11:53,392 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-03 02:11:53,392 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-03 02:11:53,392 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg_ex [2022-11-03 02:11:53,392 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg_ex [2022-11-03 02:11:53,392 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-03 02:11:53,392 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-03 02:11:53,393 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-03 02:11:53,393 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-03 02:11:53,393 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-03 02:11:53,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-03 02:11:53,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-03 02:11:53,393 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_resume [2022-11-03 02:11:53,393 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_resume [2022-11-03 02:11:53,393 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-03 02:11:53,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-03 02:11:53,394 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-03 02:11:53,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-03 02:11:53,394 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_polarity [2022-11-03 02:11:53,394 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_polarity [2022-11-03 02:11:53,394 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-03 02:11:53,394 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-03 02:11:53,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 02:11:53,395 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 02:11:53,395 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-03 02:11:53,395 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-03 02:11:53,395 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_mdi_clk [2022-11-03 02:11:53,395 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_mdi_clk [2022-11-03 02:11:53,395 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_mac_to_phy [2022-11-03 02:11:53,395 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_mac_to_phy [2022-11-03 02:11:53,395 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom_len [2022-11-03 02:11:53,396 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom_len [2022-11-03 02:11:53,396 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 02:11:53,396 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 02:11:53,396 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2022-11-03 02:11:53,396 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2022-11-03 02:11:53,396 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_rx_resources [2022-11-03 02:11:53,396 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_rx_resources [2022-11-03 02:11:53,396 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-11-03 02:11:53,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-11-03 02:11:53,397 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-03 02:11:53,397 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-03 02:11:53,397 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_close [2022-11-03 02:11:53,397 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_close [2022-11-03 02:11:53,397 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset_clk_and_crs [2022-11-03 02:11:53,397 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset_clk_and_crs [2022-11-03 02:11:53,398 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-03 02:11:53,398 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-03 02:11:53,398 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 02:11:53,398 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 02:11:53,398 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-03 02:11:53,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-03 02:11:53,398 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-03 02:11:53,398 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-03 02:11:53,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:11:53,399 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 02:11:53,399 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 02:11:53,399 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-03 02:11:53,399 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-03 02:11:53,399 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 02:11:53,399 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 02:11:53,399 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_regs_len [2022-11-03 02:11:53,400 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_regs_len [2022-11-03 02:11:53,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:11:53,400 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-03 02:11:53,400 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-03 02:11:53,400 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-03 02:11:53,400 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-03 02:11:53,400 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2022-11-03 02:11:53,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2022-11-03 02:11:53,401 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_tx_resources [2022-11-03 02:11:53,401 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_tx_resources [2022-11-03 02:11:53,401 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_setup_autoneg [2022-11-03 02:11:53,401 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_setup_autoneg [2022-11-03 02:11:53,401 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_mng_vlan [2022-11-03 02:11:53,401 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_mng_vlan [2022-11-03 02:11:53,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:11:53,402 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_media_type [2022-11-03 02:11:53,402 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_media_type [2022-11-03 02:11:53,402 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_eeprom [2022-11-03 02:11:53,402 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_eeprom [2022-11-03 02:11:53,402 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_filter_on_off [2022-11-03 02:11:53,402 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_filter_on_off [2022-11-03 02:11:53,402 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-03 02:11:53,402 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-03 02:11:53,403 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_nway_reset [2022-11-03 02:11:53,404 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_nway_reset [2022-11-03 02:11:53,404 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-03 02:11:53,404 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-03 02:11:53,404 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_phy_loopback [2022-11-03 02:11:53,404 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_phy_loopback [2022-11-03 02:11:53,404 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 02:11:53,404 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 02:11:53,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-03 02:11:53,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-03 02:11:53,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 02:11:53,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 02:11:53,405 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-03 02:11:53,405 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-03 02:11:53,405 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_all_rx_rings [2022-11-03 02:11:53,405 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_all_rx_rings [2022-11-03 02:11:53,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-03 02:11:53,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-03 02:11:53,406 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_enable [2022-11-03 02:11:53,406 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_enable [2022-11-03 02:11:53,406 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_up [2022-11-03 02:11:53,406 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_up [2022-11-03 02:11:53,406 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_tx_timeout [2022-11-03 02:11:53,406 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_tx_timeout [2022-11-03 02:11:53,406 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reinit_locked [2022-11-03 02:11:53,407 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reinit_locked [2022-11-03 02:11:53,407 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_bit [2022-11-03 02:11:53,407 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_bit [2022-11-03 02:11:53,407 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_phy_reg [2022-11-03 02:11:53,407 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_phy_reg [2022-11-03 02:11:53,407 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_rx_resources [2022-11-03 02:11:53,407 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_rx_resources [2022-11-03 02:11:53,408 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_mdi_clk [2022-11-03 02:11:53,408 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_mdi_clk [2022-11-03 02:11:53,408 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-03 02:11:53,408 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-03 02:11:53,408 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-03 02:11:53,408 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-03 02:11:53,408 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 02:11:53,408 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 02:11:53,409 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_copper_link_rtl_setup [2022-11-03 02:11:53,409 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_copper_link_rtl_setup [2022-11-03 02:11:53,409 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-11-03 02:11:53,409 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-11-03 02:11:53,409 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_eeprom [2022-11-03 02:11:53,409 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_eeprom [2022-11-03 02:11:53,409 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_desc_rings [2022-11-03 02:11:53,409 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_desc_rings [2022-11-03 02:11:53,410 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_set_mwi [2022-11-03 02:11:53,410 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_set_mwi [2022-11-03 02:11:53,410 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-03 02:11:53,410 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-03 02:11:53,410 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 02:11:53,410 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 02:11:53,410 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_polarity_reversal_workaround [2022-11-03 02:11:53,410 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_polarity_reversal_workaround [2022-11-03 02:11:53,411 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-03 02:11:53,411 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-03 02:11:53,411 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-03 02:11:53,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-03 02:11:53,411 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 02:11:53,411 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 02:11:53,411 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_link_test [2022-11-03 02:11:53,411 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_link_test [2022-11-03 02:11:53,412 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_mdi_bits [2022-11-03 02:11:53,412 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_mdi_bits [2022-11-03 02:11:53,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:11:53,412 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_64k_bound [2022-11-03 02:11:53,412 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_64k_bound [2022-11-03 02:11:53,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:11:53,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:11:53,412 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_spd_dplx [2022-11-03 02:11:53,413 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_spd_dplx [2022-11-03 02:11:53,413 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2022-11-03 02:11:53,413 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2022-11-03 02:11:53,413 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down [2022-11-03 02:11:53,413 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down [2022-11-03 02:11:53,413 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 02:11:53,413 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 02:11:53,413 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_init_script [2022-11-03 02:11:53,414 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_init_script [2022-11-03 02:11:53,414 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-03 02:11:53,414 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-03 02:11:53,414 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-03 02:11:53,414 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-03 02:11:53,414 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_request_irq [2022-11-03 02:11:53,414 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_request_irq [2022-11-03 02:11:53,414 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-03 02:11:53,415 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-03 02:11:53,415 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_eeprom [2022-11-03 02:11:53,415 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_eeprom [2022-11-03 02:11:53,415 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw [2022-11-03 02:11:53,415 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw [2022-11-03 02:11:53,415 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_disable [2022-11-03 02:11:53,415 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_disable [2022-11-03 02:11:53,415 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-11-03 02:11:53,416 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-11-03 02:11:53,416 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-03 02:11:53,416 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-03 02:11:53,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_17 [2022-11-03 02:11:53,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_17 [2022-11-03 02:11:53,416 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_tx_ring [2022-11-03 02:11:53,416 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_tx_ring [2022-11-03 02:11:53,416 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_shutdown [2022-11-03 02:11:53,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_shutdown [2022-11-03 02:11:53,420 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_tx_resources [2022-11-03 02:11:53,420 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_tx_resources [2022-11-03 02:11:53,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 02:11:53,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 02:11:53,421 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-03 02:11:53,421 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-03 02:11:53,421 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-03 02:11:53,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-03 02:11:53,421 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-03 02:11:53,422 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-03 02:11:53,422 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_manageability [2022-11-03 02:11:53,422 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_manageability [2022-11-03 02:11:53,422 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-11-03 02:11:53,422 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-11-03 02:11:53,422 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-03 02:11:53,422 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-03 02:11:53,422 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_wol_exclusion [2022-11-03 02:11:53,423 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_wol_exclusion [2022-11-03 02:11:53,423 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 02:11:53,423 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 02:11:53,423 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-03 02:11:53,423 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-03 02:11:53,423 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-03 02:11:53,423 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-03 02:11:53,424 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-03 02:11:53,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:11:53,424 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-11-03 02:11:53,424 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-11-03 02:11:53,424 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_rx_ring [2022-11-03 02:11:53,424 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_rx_ring [2022-11-03 02:11:53,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 02:11:53,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 02:11:53,425 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-03 02:11:55,631 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:11:55,636 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:11:57,139 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:13:03,037 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:13:12,016 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:13:12,017 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-03 02:13:12,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:13:12 BoogieIcfgContainer [2022-11-03 02:13:12,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:13:12,029 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:13:12,030 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:13:12,033 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:13:12,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:11:39" (1/3) ... [2022-11-03 02:13:12,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be01ae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:13:12, skipping insertion in model container [2022-11-03 02:13:12,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:49" (2/3) ... [2022-11-03 02:13:12,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be01ae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:13:12, skipping insertion in model container [2022-11-03 02:13:12,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:13:12" (3/3) ... [2022-11-03 02:13:12,040 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-03 02:13:12,062 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:13:12,063 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:13:12,258 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:13:12,268 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;@6b1fa909, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:13:12,270 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:13:12,294 INFO L276 IsEmpty]: Start isEmpty. Operand has 6544 states, 4177 states have (on average 1.3356475939669619) internal successors, (5579), 4283 states have internal predecessors, (5579), 2125 states have call successors, (2125), 243 states have call predecessors, (2125), 242 states have return successors, (2121), 2108 states have call predecessors, (2121), 2121 states have call successors, (2121) [2022-11-03 02:13:12,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-03 02:13:12,304 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:13:12,305 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-03 02:13:12,306 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:13:12,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:13:12,313 INFO L85 PathProgramCache]: Analyzing trace with hash -2041861748, now seen corresponding path program 1 times [2022-11-03 02:13:12,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:13:12,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756540080] [2022-11-03 02:13:12,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:13:12,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:13:13,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:13:16,737 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 02:13:16,737 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:13:16,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756540080] [2022-11-03 02:13:16,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756540080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:13:16,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:13:16,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:13:16,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877649344] [2022-11-03 02:13:16,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:13:16,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:13:16,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:13:16,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:13:16,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:13:16,810 INFO L87 Difference]: Start difference. First operand has 6544 states, 4177 states have (on average 1.3356475939669619) internal successors, (5579), 4283 states have internal predecessors, (5579), 2125 states have call successors, (2125), 243 states have call predecessors, (2125), 242 states have return successors, (2121), 2108 states have call predecessors, (2121), 2121 states have call successors, (2121) Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 02:13:19,994 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 02:13:22,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:13:35,002 WARN L539 Checker$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 02:13:37,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:13:39,379 WARN L539 Checker$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 02:13:42,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:13:51,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:13:53,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:13:56,924 WARN L539 Checker$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 02:13:59,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:14:01,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:14:03,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:14:05,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:14:08,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:14:08,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:14:08,412 INFO L93 Difference]: Finished difference Result 14909 states and 22271 transitions. [2022-11-03 02:14:08,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:14:08,416 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 35 [2022-11-03 02:14:08,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:14:08,736 INFO L225 Difference]: With dead ends: 14909 [2022-11-03 02:14:08,736 INFO L226 Difference]: Without dead ends: 8369 [2022-11-03 02:14:08,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:14:08,808 INFO L413 NwaCegarLoop]: 9674 mSDtfsCounter, 2590 mSDsluCounter, 30738 mSDsCounter, 0 mSdLazyCounter, 3235 mSolverCounterSat, 2 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2597 SdHoareTripleChecker+Valid, 37992 SdHoareTripleChecker+Invalid, 3250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3235 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:14:08,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2597 Valid, 37992 Invalid, 3250 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3235 Invalid, 13 Unknown, 0 Unchecked, 50.7s Time] [2022-11-03 02:14:08,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8369 states. [2022-11-03 02:14:09,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8369 to 8360. [2022-11-03 02:14:09,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8360 states, 5227 states have (on average 1.3168165295580638) internal successors, (6883), 5376 states have internal predecessors, (6883), 2737 states have call successors, (2737), 398 states have call predecessors, (2737), 395 states have return successors, (2731), 2716 states have call predecessors, (2731), 2731 states have call successors, (2731) [2022-11-03 02:14:09,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8360 states to 8360 states and 12351 transitions. [2022-11-03 02:14:09,982 INFO L78 Accepts]: Start accepts. Automaton has 8360 states and 12351 transitions. Word has length 35 [2022-11-03 02:14:09,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:14:09,984 INFO L495 AbstractCegarLoop]: Abstraction has 8360 states and 12351 transitions. [2022-11-03 02:14:09,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 02:14:09,985 INFO L276 IsEmpty]: Start isEmpty. Operand 8360 states and 12351 transitions. [2022-11-03 02:14:09,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-03 02:14:09,989 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:14:09,989 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:14:09,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:14:09,990 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:14:09,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:14:09,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1745534704, now seen corresponding path program 1 times [2022-11-03 02:14:09,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:14:09,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397384699] [2022-11-03 02:14:09,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:14:09,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:14:10,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:14:13,368 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 02:14:13,368 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:14:13,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397384699] [2022-11-03 02:14:13,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397384699] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:14:13,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:14:13,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:14:13,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964683368] [2022-11-03 02:14:13,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:14:13,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:14:13,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:14:13,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:14:13,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:14:13,372 INFO L87 Difference]: Start difference. First operand 8360 states and 12351 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 02:14:16,798 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 02:14:24,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:14:32,958 WARN L539 Checker$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 02:14:35,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:14:37,278 WARN L539 Checker$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 02:14:41,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:14:56,073 WARN L539 Checker$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 02:14:58,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:01,074 WARN L539 Checker$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 02:15:03,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:03,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:15:03,570 INFO L93 Difference]: Finished difference Result 11222 states and 16703 transitions. [2022-11-03 02:15:03,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:15:03,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 40 [2022-11-03 02:15:03,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:15:03,676 INFO L225 Difference]: With dead ends: 11222 [2022-11-03 02:15:03,677 INFO L226 Difference]: Without dead ends: 11218 [2022-11-03 02:15:03,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:15:03,686 INFO L413 NwaCegarLoop]: 10749 mSDtfsCounter, 6287 mSDsluCounter, 32921 mSDsCounter, 0 mSdLazyCounter, 3316 mSolverCounterSat, 2 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6290 SdHoareTripleChecker+Valid, 41198 SdHoareTripleChecker+Invalid, 3328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3316 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:15:03,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6290 Valid, 41198 Invalid, 3328 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3316 Invalid, 10 Unknown, 0 Unchecked, 49.5s Time] [2022-11-03 02:15:03,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11218 states. [2022-11-03 02:15:04,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11218 to 11210. [2022-11-03 02:15:04,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11210 states, 7094 states have (on average 1.323935720327037) internal successors, (9392), 7263 states have internal predecessors, (9392), 3650 states have call successors, (3650), 468 states have call predecessors, (3650), 465 states have return successors, (3646), 3629 states have call predecessors, (3646), 3644 states have call successors, (3646) [2022-11-03 02:15:04,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11210 states to 11210 states and 16688 transitions. [2022-11-03 02:15:04,688 INFO L78 Accepts]: Start accepts. Automaton has 11210 states and 16688 transitions. Word has length 40 [2022-11-03 02:15:04,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:15:04,689 INFO L495 AbstractCegarLoop]: Abstraction has 11210 states and 16688 transitions. [2022-11-03 02:15:04,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 02:15:04,689 INFO L276 IsEmpty]: Start isEmpty. Operand 11210 states and 16688 transitions. [2022-11-03 02:15:04,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-03 02:15:04,691 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:15:04,691 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:15:04,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:15:04,692 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:15:04,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:15:04,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1177714636, now seen corresponding path program 1 times [2022-11-03 02:15:04,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:15:04,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002590857] [2022-11-03 02:15:04,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:04,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:15:05,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:15:07,713 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-03 02:15:07,713 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:15:07,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002590857] [2022-11-03 02:15:07,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002590857] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:15:07,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:15:07,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:15:07,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109647874] [2022-11-03 02:15:07,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:15:07,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:15:07,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:15:07,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:15:07,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:15:07,716 INFO L87 Difference]: Start difference. First operand 11210 states and 16688 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-03 02:15:11,116 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 02:15:15,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:26,262 WARN L539 Checker$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 02:15:28,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:30,635 WARN L539 Checker$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 02:15:35,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:45,660 WARN L539 Checker$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 02:15:47,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:50,697 WARN L539 Checker$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 02:15:52,964 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 02:15:53,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:15:53,336 INFO L93 Difference]: Finished difference Result 11218 states and 16699 transitions. [2022-11-03 02:15:53,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:15:53,338 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 45 [2022-11-03 02:15:53,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:15:53,443 INFO L225 Difference]: With dead ends: 11218 [2022-11-03 02:15:53,444 INFO L226 Difference]: Without dead ends: 11173 [2022-11-03 02:15:53,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:15:53,459 INFO L413 NwaCegarLoop]: 10749 mSDtfsCounter, 6283 mSDsluCounter, 32917 mSDsCounter, 0 mSdLazyCounter, 3307 mSolverCounterSat, 2 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6285 SdHoareTripleChecker+Valid, 41200 SdHoareTripleChecker+Invalid, 3318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3307 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:15:53,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6285 Valid, 41200 Invalid, 3318 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3307 Invalid, 9 Unknown, 0 Unchecked, 45.0s Time] [2022-11-03 02:15:53,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11173 states. [2022-11-03 02:15:54,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11173 to 11167. [2022-11-03 02:15:54,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11167 states, 7071 states have (on average 1.3242822797341254) internal successors, (9364), 7238 states have internal predecessors, (9364), 3632 states have call successors, (3632), 464 states have call predecessors, (3632), 463 states have return successors, (3631), 3614 states have call predecessors, (3631), 3629 states have call successors, (3631) [2022-11-03 02:15:54,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11167 states to 11167 states and 16627 transitions. [2022-11-03 02:15:54,514 INFO L78 Accepts]: Start accepts. Automaton has 11167 states and 16627 transitions. Word has length 45 [2022-11-03 02:15:54,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:15:54,514 INFO L495 AbstractCegarLoop]: Abstraction has 11167 states and 16627 transitions. [2022-11-03 02:15:54,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-03 02:15:54,515 INFO L276 IsEmpty]: Start isEmpty. Operand 11167 states and 16627 transitions. [2022-11-03 02:15:54,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-11-03 02:15:54,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:15:54,548 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 8, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:15:54,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:15:54,548 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:15:54,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:15:54,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1346056353, now seen corresponding path program 1 times [2022-11-03 02:15:54,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:15:54,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198881071] [2022-11-03 02:15:54,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:54,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:15:55,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:00,650 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2022-11-03 02:16:00,651 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:16:00,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198881071] [2022-11-03 02:16:00,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198881071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:16:00,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:16:00,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:16:00,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381973959] [2022-11-03 02:16:00,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:16:00,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:16:00,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:16:00,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:16:00,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:16:00,654 INFO L87 Difference]: Start difference. First operand 11167 states and 16627 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-11-03 02:16:03,961 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 02:16:06,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:16,940 WARN L539 Checker$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 02:16:18,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:21,271 WARN L539 Checker$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 02:16:25,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:32,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:35,592 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 02:16:36,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:16:36,399 INFO L93 Difference]: Finished difference Result 22780 states and 33971 transitions. [2022-11-03 02:16:36,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:16:36,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 242 [2022-11-03 02:16:36,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:16:36,481 INFO L225 Difference]: With dead ends: 22780 [2022-11-03 02:16:36,481 INFO L226 Difference]: Without dead ends: 11627 [2022-11-03 02:16:36,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:16:36,578 INFO L413 NwaCegarLoop]: 9242 mSDtfsCounter, 289 mSDsluCounter, 19840 mSDsCounter, 0 mSdLazyCounter, 2465 mSolverCounterSat, 90 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 27463 SdHoareTripleChecker+Invalid, 2562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 2465 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:16:36,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 27463 Invalid, 2562 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [90 Valid, 2465 Invalid, 7 Unknown, 0 Unchecked, 35.0s Time] [2022-11-03 02:16:36,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11627 states. [2022-11-03 02:16:37,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11627 to 11171. [2022-11-03 02:16:37,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11171 states, 7075 states have (on average 1.3240989399293286) internal successors, (9368), 7242 states have internal predecessors, (9368), 3632 states have call successors, (3632), 464 states have call predecessors, (3632), 463 states have return successors, (3631), 3614 states have call predecessors, (3631), 3629 states have call successors, (3631) [2022-11-03 02:16:37,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11171 states to 11171 states and 16631 transitions. [2022-11-03 02:16:37,706 INFO L78 Accepts]: Start accepts. Automaton has 11171 states and 16631 transitions. Word has length 242 [2022-11-03 02:16:37,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:16:37,706 INFO L495 AbstractCegarLoop]: Abstraction has 11171 states and 16631 transitions. [2022-11-03 02:16:37,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-11-03 02:16:37,707 INFO L276 IsEmpty]: Start isEmpty. Operand 11171 states and 16631 transitions. [2022-11-03 02:16:37,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-11-03 02:16:37,725 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:16:37,726 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 8, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:16:37,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:16:37,726 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:16:37,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:16:37,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1784626607, now seen corresponding path program 1 times [2022-11-03 02:16:37,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:16:37,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987992976] [2022-11-03 02:16:37,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:37,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:16:38,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:46,868 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 449 trivial. 0 not checked. [2022-11-03 02:16:46,868 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:16:46,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987992976] [2022-11-03 02:16:46,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987992976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:16:46,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:16:46,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:16:46,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97309936] [2022-11-03 02:16:46,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:16:46,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:16:46,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:16:46,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:16:46,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:16:46,872 INFO L87 Difference]: Start difference. First operand 11171 states and 16631 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-03 02:16:52,041 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 02:17:03,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:05,568 WARN L539 Checker$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 02:17:07,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:12,887 WARN L539 Checker$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 02:17:16,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:24,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:28,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:30,854 WARN L539 Checker$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 02:17:33,162 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 02:17:33,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:17:33,544 INFO L93 Difference]: Finished difference Result 17692 states and 26427 transitions. [2022-11-03 02:17:33,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:17:33,546 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) Word has length 259 [2022-11-03 02:17:33,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:17:33,629 INFO L225 Difference]: With dead ends: 17692 [2022-11-03 02:17:33,630 INFO L226 Difference]: Without dead ends: 11179 [2022-11-03 02:17:33,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:17:33,682 INFO L413 NwaCegarLoop]: 8980 mSDtfsCounter, 0 mSDsluCounter, 29321 mSDsCounter, 0 mSdLazyCounter, 3216 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35906 SdHoareTripleChecker+Invalid, 3225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3216 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:17:33,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35906 Invalid, 3225 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 3216 Invalid, 9 Unknown, 0 Unchecked, 46.1s Time] [2022-11-03 02:17:33,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11179 states. [2022-11-03 02:17:34,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11179 to 11179. [2022-11-03 02:17:34,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11179 states, 7081 states have (on average 1.323824318599068) internal successors, (9374), 7248 states have internal predecessors, (9374), 3632 states have call successors, (3632), 464 states have call predecessors, (3632), 465 states have return successors, (3649), 3616 states have call predecessors, (3649), 3629 states have call successors, (3649) [2022-11-03 02:17:34,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11179 states to 11179 states and 16655 transitions. [2022-11-03 02:17:34,825 INFO L78 Accepts]: Start accepts. Automaton has 11179 states and 16655 transitions. Word has length 259 [2022-11-03 02:17:34,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:17:34,826 INFO L495 AbstractCegarLoop]: Abstraction has 11179 states and 16655 transitions. [2022-11-03 02:17:34,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-03 02:17:34,826 INFO L276 IsEmpty]: Start isEmpty. Operand 11179 states and 16655 transitions. [2022-11-03 02:17:34,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-11-03 02:17:34,844 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:17:34,845 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:17:34,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:17:34,846 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:17:34,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:17:34,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1625800679, now seen corresponding path program 1 times [2022-11-03 02:17:34,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:17:34,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228432397] [2022-11-03 02:17:34,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:34,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:17:35,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:38,916 INFO L134 CoverageAnalysis]: Checked inductivity of 557 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 557 trivial. 0 not checked. [2022-11-03 02:17:38,916 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:17:38,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228432397] [2022-11-03 02:17:38,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228432397] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:17:38,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:17:38,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:17:38,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105374966] [2022-11-03 02:17:38,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:17:38,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:17:38,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:17:38,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:17:38,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:17:38,919 INFO L87 Difference]: Start difference. First operand 11179 states and 16655 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-11-03 02:17:43,099 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 02:17:51,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:56,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:58,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:00,311 WARN L539 Checker$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 02:18:02,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:07,701 WARN L539 Checker$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 02:18:15,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:19,531 WARN L539 Checker$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 02:18:25,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:28,092 WARN L539 Checker$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 02:18:30,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:32,140 WARN L539 Checker$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 02:18:34,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:36,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:38,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:41,172 WARN L539 Checker$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 02:18:41,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:18:41,538 INFO L93 Difference]: Finished difference Result 15875 states and 23640 transitions. [2022-11-03 02:18:41,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:18:41,539 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 272 [2022-11-03 02:18:41,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:18:41,658 INFO L225 Difference]: With dead ends: 15875 [2022-11-03 02:18:41,659 INFO L226 Difference]: Without dead ends: 15873 [2022-11-03 02:18:41,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:18:41,679 INFO L413 NwaCegarLoop]: 10473 mSDtfsCounter, 6901 mSDsluCounter, 32310 mSDsCounter, 0 mSdLazyCounter, 3211 mSolverCounterSat, 2 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6905 SdHoareTripleChecker+Valid, 40376 SdHoareTripleChecker+Invalid, 3228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3211 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:18:41,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6905 Valid, 40376 Invalid, 3228 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3211 Invalid, 15 Unknown, 0 Unchecked, 61.9s Time] [2022-11-03 02:18:41,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15873 states. [2022-11-03 02:18:43,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15873 to 15867. [2022-11-03 02:18:43,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15867 states, 10071 states have (on average 1.3253897328964352) internal successors, (13348), 10301 states have internal predecessors, (13348), 5130 states have call successors, (5130), 664 states have call predecessors, (5130), 665 states have return successors, (5154), 5109 states have call predecessors, (5154), 5124 states have call successors, (5154) [2022-11-03 02:18:43,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15867 states to 15867 states and 23632 transitions. [2022-11-03 02:18:43,199 INFO L78 Accepts]: Start accepts. Automaton has 15867 states and 23632 transitions. Word has length 272 [2022-11-03 02:18:43,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:18:43,202 INFO L495 AbstractCegarLoop]: Abstraction has 15867 states and 23632 transitions. [2022-11-03 02:18:43,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-11-03 02:18:43,203 INFO L276 IsEmpty]: Start isEmpty. Operand 15867 states and 23632 transitions. [2022-11-03 02:18:43,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-11-03 02:18:43,222 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:18:43,222 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:18:43,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:18:43,223 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:18:43,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:18:43,224 INFO L85 PathProgramCache]: Analyzing trace with hash -187340427, now seen corresponding path program 1 times [2022-11-03 02:18:43,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:18:43,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773947596] [2022-11-03 02:18:43,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:18:43,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:18:43,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:18:47,207 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 557 trivial. 0 not checked. [2022-11-03 02:18:47,207 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:18:47,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773947596] [2022-11-03 02:18:47,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773947596] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:18:47,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:18:47,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:18:47,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866486193] [2022-11-03 02:18:47,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:18:47,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:18:47,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:18:47,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:18:47,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:18:47,211 INFO L87 Difference]: Start difference. First operand 15867 states and 23632 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-11-03 02:18:50,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:53,484 WARN L539 Checker$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 02:18:57,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:03,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:05,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:07,675 WARN L539 Checker$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 02:19:10,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:15,903 WARN L539 Checker$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 02:19:26,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:33,778 WARN L539 Checker$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 02:19:36,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:38,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:40,732 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 02:19:41,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:19:41,113 INFO L93 Difference]: Finished difference Result 15879 states and 23643 transitions. [2022-11-03 02:19:41,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:19:41,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 277 [2022-11-03 02:19:41,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:19:41,237 INFO L225 Difference]: With dead ends: 15879 [2022-11-03 02:19:41,238 INFO L226 Difference]: Without dead ends: 15875 [2022-11-03 02:19:41,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:19:41,260 INFO L413 NwaCegarLoop]: 10476 mSDtfsCounter, 6896 mSDsluCounter, 32308 mSDsCounter, 0 mSdLazyCounter, 3213 mSolverCounterSat, 2 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6899 SdHoareTripleChecker+Valid, 40379 SdHoareTripleChecker+Invalid, 3226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3213 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:19:41,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6899 Valid, 40379 Invalid, 3226 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3213 Invalid, 11 Unknown, 0 Unchecked, 53.2s Time] [2022-11-03 02:19:41,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15875 states. [2022-11-03 02:19:42,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15875 to 15869. [2022-11-03 02:19:42,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15869 states, 10073 states have (on average 1.325225851285615) internal successors, (13349), 10302 states have internal predecessors, (13349), 5130 states have call successors, (5130), 665 states have call predecessors, (5130), 665 states have return successors, (5154), 5109 states have call predecessors, (5154), 5124 states have call successors, (5154) [2022-11-03 02:19:42,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15869 states to 15869 states and 23633 transitions. [2022-11-03 02:19:42,819 INFO L78 Accepts]: Start accepts. Automaton has 15869 states and 23633 transitions. Word has length 277 [2022-11-03 02:19:42,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:19:42,820 INFO L495 AbstractCegarLoop]: Abstraction has 15869 states and 23633 transitions. [2022-11-03 02:19:42,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-11-03 02:19:42,820 INFO L276 IsEmpty]: Start isEmpty. Operand 15869 states and 23633 transitions. [2022-11-03 02:19:42,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-11-03 02:19:42,841 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:19:42,841 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 9, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:19:42,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:19:42,842 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:19:42,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:19:42,843 INFO L85 PathProgramCache]: Analyzing trace with hash -589277754, now seen corresponding path program 1 times [2022-11-03 02:19:42,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:19:42,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266603999] [2022-11-03 02:19:42,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:19:42,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:19:43,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:19:46,169 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 577 trivial. 0 not checked. [2022-11-03 02:19:46,170 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:19:46,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266603999] [2022-11-03 02:19:46,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266603999] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:19:46,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:19:46,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:19:46,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750404996] [2022-11-03 02:19:46,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:19:46,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:19:46,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:19:46,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:19:46,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:19:46,173 INFO L87 Difference]: Start difference. First operand 15869 states and 23633 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-11-03 02:19:49,090 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 02:19:52,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:04,266 WARN L539 Checker$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 02:20:06,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:08,661 WARN L539 Checker$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 02:20:13,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:16,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:18,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:24,742 WARN L539 Checker$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 02:20:27,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:30,743 WARN L539 Checker$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 02:20:32,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:35,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:37,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:39,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:39,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:20:39,969 INFO L93 Difference]: Finished difference Result 16814 states and 24990 transitions. [2022-11-03 02:20:39,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:20:39,970 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 288 [2022-11-03 02:20:39,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:20:40,066 INFO L225 Difference]: With dead ends: 16814 [2022-11-03 02:20:40,066 INFO L226 Difference]: Without dead ends: 16771 [2022-11-03 02:20:40,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:20:40,083 INFO L413 NwaCegarLoop]: 10101 mSDtfsCounter, 3877 mSDsluCounter, 31574 mSDsCounter, 0 mSdLazyCounter, 3231 mSolverCounterSat, 2 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3881 SdHoareTripleChecker+Valid, 39256 SdHoareTripleChecker+Invalid, 3246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3231 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:20:40,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3881 Valid, 39256 Invalid, 3246 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3231 Invalid, 13 Unknown, 0 Unchecked, 53.1s Time] [2022-11-03 02:20:40,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16771 states. [2022-11-03 02:20:41,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16771 to 16771. [2022-11-03 02:20:41,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16771 states, 10620 states have (on average 1.3221280602636536) internal successors, (14041), 10861 states have internal predecessors, (14041), 5432 states have call successors, (5432), 716 states have call predecessors, (5432), 718 states have return successors, (5459), 5413 states have call predecessors, (5459), 5429 states have call successors, (5459) [2022-11-03 02:20:41,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16771 states to 16771 states and 24932 transitions. [2022-11-03 02:20:41,480 INFO L78 Accepts]: Start accepts. Automaton has 16771 states and 24932 transitions. Word has length 288 [2022-11-03 02:20:41,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:20:41,481 INFO L495 AbstractCegarLoop]: Abstraction has 16771 states and 24932 transitions. [2022-11-03 02:20:41,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-11-03 02:20:41,482 INFO L276 IsEmpty]: Start isEmpty. Operand 16771 states and 24932 transitions. [2022-11-03 02:20:41,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 631 [2022-11-03 02:20:41,635 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:20:41,636 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 14, 8, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:20:41,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:20:41,637 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:20:41,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:20:41,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1093942826, now seen corresponding path program 1 times [2022-11-03 02:20:41,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:20:41,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760004855] [2022-11-03 02:20:41,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:20:41,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:20:42,755 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:20:42,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [591469094] [2022-11-03 02:20:42,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:20:42,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:20:42,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:20:42,759 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:20:42,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:20:50,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:20:51,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 21961 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 02:20:51,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:20:51,229 INFO L134 CoverageAnalysis]: Checked inductivity of 847 backedges. 293 proven. 0 refuted. 0 times theorem prover too weak. 554 trivial. 0 not checked. [2022-11-03 02:20:51,229 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:20:51,229 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:20:51,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760004855] [2022-11-03 02:20:51,230 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:20:51,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591469094] [2022-11-03 02:20:51,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591469094] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:20:51,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:20:51,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:20:51,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424582405] [2022-11-03 02:20:51,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:20:51,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:20:51,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:20:51,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:20:51,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:20:51,234 INFO L87 Difference]: Start difference. First operand 16771 states and 24932 transitions. Second operand has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 3 states have call successors, (108), 2 states have call predecessors, (108), 2 states have return successors, (106), 3 states have call predecessors, (106), 3 states have call successors, (106) [2022-11-03 02:20:54,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:02,945 WARN L539 Checker$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 02:21:04,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:07,212 WARN L539 Checker$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 02:21:10,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:16,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:19,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:21,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:22,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:21:22,543 INFO L93 Difference]: Finished difference Result 24618 states and 36834 transitions. [2022-11-03 02:21:22,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:21:22,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 3 states have call successors, (108), 2 states have call predecessors, (108), 2 states have return successors, (106), 3 states have call predecessors, (106), 3 states have call successors, (106) Word has length 630 [2022-11-03 02:21:22,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:21:22,638 INFO L225 Difference]: With dead ends: 24618 [2022-11-03 02:21:22,639 INFO L226 Difference]: Without dead ends: 18101 [2022-11-03 02:21:22,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 629 GetRequests, 628 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 02:21:22,689 INFO L413 NwaCegarLoop]: 10214 mSDtfsCounter, 1135 mSDsluCounter, 10037 mSDsCounter, 0 mSdLazyCounter, 1755 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1621 SdHoareTripleChecker+Valid, 19453 SdHoareTripleChecker+Invalid, 1762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1755 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:21:22,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1621 Valid, 19453 Invalid, 1762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1755 Invalid, 6 Unknown, 0 Unchecked, 30.6s Time] [2022-11-03 02:21:22,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18101 states. [2022-11-03 02:21:24,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18101 to 16776. [2022-11-03 02:21:24,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16776 states, 10624 states have (on average 1.3221009036144578) internal successors, (14046), 10865 states have internal predecessors, (14046), 5433 states have call successors, (5433), 716 states have call predecessors, (5433), 718 states have return successors, (5460), 5414 states have call predecessors, (5460), 5430 states have call successors, (5460) [2022-11-03 02:21:24,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16776 states to 16776 states and 24939 transitions. [2022-11-03 02:21:24,370 INFO L78 Accepts]: Start accepts. Automaton has 16776 states and 24939 transitions. Word has length 630 [2022-11-03 02:21:24,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:21:24,372 INFO L495 AbstractCegarLoop]: Abstraction has 16776 states and 24939 transitions. [2022-11-03 02:21:24,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 3 states have call successors, (108), 2 states have call predecessors, (108), 2 states have return successors, (106), 3 states have call predecessors, (106), 3 states have call successors, (106) [2022-11-03 02:21:24,373 INFO L276 IsEmpty]: Start isEmpty. Operand 16776 states and 24939 transitions. [2022-11-03 02:21:24,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 675 [2022-11-03 02:21:24,483 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:21:24,483 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 8, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:21:24,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:21:24,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:21:24,699 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:21:24,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:21:24,700 INFO L85 PathProgramCache]: Analyzing trace with hash -970687540, now seen corresponding path program 1 times [2022-11-03 02:21:24,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:21:24,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534684486] [2022-11-03 02:21:24,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:21:24,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:21:25,822 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:21:25,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1602278010] [2022-11-03 02:21:25,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:21:25,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:21:25,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:21:25,824 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:21:25,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:21:34,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:21:34,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 22437 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:21:34,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:21:34,301 INFO L134 CoverageAnalysis]: Checked inductivity of 959 backedges. 221 proven. 0 refuted. 0 times theorem prover too weak. 738 trivial. 0 not checked. [2022-11-03 02:21:34,301 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:21:34,301 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:21:34,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534684486] [2022-11-03 02:21:34,302 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:21:34,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602278010] [2022-11-03 02:21:34,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602278010] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:21:34,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:21:34,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:21:34,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174049113] [2022-11-03 02:21:34,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:21:34,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:21:34,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:21:34,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:21:34,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:21:34,306 INFO L87 Difference]: Start difference. First operand 16776 states and 24939 transitions. Second operand has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 2 states have call successors, (112), 2 states have call predecessors, (112), 2 states have return successors, (110), 2 states have call predecessors, (110), 2 states have call successors, (110) [2022-11-03 02:21:37,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:41,390 WARN L539 Checker$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 02:21:48,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:53,085 WARN L539 Checker$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 02:21:55,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:57,404 WARN L539 Checker$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 02:22:01,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:22:08,736 WARN L539 Checker$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 02:22:11,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:22:13,783 WARN L539 Checker$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 02:22:16,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:22:18,878 WARN L539 Checker$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 02:22:19,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:19,233 INFO L93 Difference]: Finished difference Result 29712 states and 44307 transitions. [2022-11-03 02:22:19,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:22:19,234 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 2 states have call successors, (112), 2 states have call predecessors, (112), 2 states have return successors, (110), 2 states have call predecessors, (110), 2 states have call successors, (110) Word has length 674 [2022-11-03 02:22:19,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:19,317 INFO L225 Difference]: With dead ends: 29712 [2022-11-03 02:22:19,318 INFO L226 Difference]: Without dead ends: 17598 [2022-11-03 02:22:19,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 675 GetRequests, 672 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:22:19,388 INFO L413 NwaCegarLoop]: 9428 mSDtfsCounter, 449 mSDsluCounter, 19891 mSDsCounter, 0 mSdLazyCounter, 2502 mSolverCounterSat, 113 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 27703 SdHoareTripleChecker+Invalid, 2626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 2502 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:19,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 27703 Invalid, 2626 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [113 Valid, 2502 Invalid, 11 Unknown, 0 Unchecked, 44.0s Time] [2022-11-03 02:22:19,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17598 states. [2022-11-03 02:22:20,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17598 to 16780. [2022-11-03 02:22:20,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16780 states, 10628 states have (on average 1.3219796763266842) internal successors, (14050), 10869 states have internal predecessors, (14050), 5433 states have call successors, (5433), 716 states have call predecessors, (5433), 718 states have return successors, (5460), 5414 states have call predecessors, (5460), 5430 states have call successors, (5460) [2022-11-03 02:22:20,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16780 states to 16780 states and 24943 transitions. [2022-11-03 02:22:20,530 INFO L78 Accepts]: Start accepts. Automaton has 16780 states and 24943 transitions. Word has length 674 [2022-11-03 02:22:20,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:20,530 INFO L495 AbstractCegarLoop]: Abstraction has 16780 states and 24943 transitions. [2022-11-03 02:22:20,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 2 states have call successors, (112), 2 states have call predecessors, (112), 2 states have return successors, (110), 2 states have call predecessors, (110), 2 states have call successors, (110) [2022-11-03 02:22:20,531 INFO L276 IsEmpty]: Start isEmpty. Operand 16780 states and 24943 transitions. [2022-11-03 02:22:20,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2022-11-03 02:22:20,621 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:20,622 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 8, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:22:20,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-03 02:22:20,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-03 02:22:20,823 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:20,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:20,824 INFO L85 PathProgramCache]: Analyzing trace with hash -12143506, now seen corresponding path program 1 times [2022-11-03 02:22:20,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:22:20,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240316871] [2022-11-03 02:22:20,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:20,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:22:22,134 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:22:22,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1129784678] [2022-11-03 02:22:22,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:22,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:22:22,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:22:22,136 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:22:22,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:22:30,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:30,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 22696 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:22:30,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:30,740 INFO L134 CoverageAnalysis]: Checked inductivity of 993 backedges. 223 proven. 0 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2022-11-03 02:22:30,740 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:30,740 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:22:30,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240316871] [2022-11-03 02:22:30,741 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:22:30,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129784678] [2022-11-03 02:22:30,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129784678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:30,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:30,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:22:30,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901107145] [2022-11-03 02:22:30,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:30,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:22:30,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:22:30,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:22:30,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:22:30,745 INFO L87 Difference]: Start difference. First operand 16780 states and 24943 transitions. Second operand has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 2 states have call successors, (114), 2 states have call predecessors, (114), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2022-11-03 02:22:34,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:22:35,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:22:46,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:22:47,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:22:48,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:22:50,840 WARN L539 Checker$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 02:22:52,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:22:55,166 WARN L539 Checker$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 02:22:59,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:07,053 WARN L539 Checker$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 02:23:10,395 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 02:23:11,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:11,689 INFO L93 Difference]: Finished difference Result 29240 states and 43565 transitions. [2022-11-03 02:23:11,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:23:11,690 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 2 states have call successors, (114), 2 states have call predecessors, (114), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) Word has length 692 [2022-11-03 02:23:11,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:11,759 INFO L225 Difference]: With dead ends: 29240 [2022-11-03 02:23:11,759 INFO L226 Difference]: Without dead ends: 17122 [2022-11-03 02:23:11,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 693 GetRequests, 690 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:23:11,803 INFO L413 NwaCegarLoop]: 9231 mSDtfsCounter, 329 mSDsluCounter, 19681 mSDsCounter, 0 mSdLazyCounter, 2442 mSolverCounterSat, 123 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 27312 SdHoareTripleChecker+Invalid, 2571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 2442 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:11,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 27312 Invalid, 2571 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [123 Valid, 2442 Invalid, 6 Unknown, 0 Unchecked, 40.1s Time] [2022-11-03 02:23:11,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17122 states. [2022-11-03 02:23:12,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17122 to 16784. [2022-11-03 02:23:12,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16784 states, 10632 states have (on average 1.3218585402558314) internal successors, (14054), 10873 states have internal predecessors, (14054), 5433 states have call successors, (5433), 716 states have call predecessors, (5433), 718 states have return successors, (5460), 5414 states have call predecessors, (5460), 5430 states have call successors, (5460) [2022-11-03 02:23:12,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16784 states to 16784 states and 24947 transitions. [2022-11-03 02:23:12,875 INFO L78 Accepts]: Start accepts. Automaton has 16784 states and 24947 transitions. Word has length 692 [2022-11-03 02:23:12,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:12,876 INFO L495 AbstractCegarLoop]: Abstraction has 16784 states and 24947 transitions. [2022-11-03 02:23:12,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 2 states have call successors, (114), 2 states have call predecessors, (114), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2022-11-03 02:23:12,877 INFO L276 IsEmpty]: Start isEmpty. Operand 16784 states and 24947 transitions. [2022-11-03 02:23:12,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 696 [2022-11-03 02:23:12,971 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:12,972 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 8, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:23:13,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:13,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-03 02:23:13,199 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:13,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:13,200 INFO L85 PathProgramCache]: Analyzing trace with hash 2065073641, now seen corresponding path program 1 times [2022-11-03 02:23:13,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:13,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214301168] [2022-11-03 02:23:13,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:13,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:14,253 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:23:14,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1518323204] [2022-11-03 02:23:14,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:14,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:23:14,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:23:14,255 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:23:14,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 02:23:22,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:22,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 22742 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:23:23,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:23,074 INFO L134 CoverageAnalysis]: Checked inductivity of 993 backedges. 253 proven. 0 refuted. 0 times theorem prover too weak. 740 trivial. 0 not checked. [2022-11-03 02:23:23,074 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:23,075 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:23,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214301168] [2022-11-03 02:23:23,075 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:23:23,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518323204] [2022-11-03 02:23:23,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1518323204] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:23,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:23,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:23:23,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894018038] [2022-11-03 02:23:23,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:23,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:23:23,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:23,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:23:23,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:23:23,079 INFO L87 Difference]: Start difference. First operand 16784 states and 24947 transitions. Second operand has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 2 states have call successors, (114), 2 states have call predecessors, (114), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2022-11-03 02:23:27,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:29,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:31,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:35,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:43,528 WARN L539 Checker$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 02:23:44,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:46,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:48,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:51,213 WARN L539 Checker$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 02:23:54,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:57,873 WARN L539 Checker$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 02:24:01,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:08,204 WARN L539 Checker$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 02:24:09,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:14,217 WARN L539 Checker$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 02:24:16,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:18,652 WARN L539 Checker$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 02:24:18,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:18,975 INFO L93 Difference]: Finished difference Result 29904 states and 44618 transitions. [2022-11-03 02:24:18,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:24:18,976 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 2 states have call successors, (114), 2 states have call predecessors, (114), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) Word has length 695 [2022-11-03 02:24:18,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:19,058 INFO L225 Difference]: With dead ends: 29904 [2022-11-03 02:24:19,058 INFO L226 Difference]: Without dead ends: 17782 [2022-11-03 02:24:19,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 696 GetRequests, 693 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:24:19,112 INFO L413 NwaCegarLoop]: 9567 mSDtfsCounter, 473 mSDsluCounter, 20214 mSDsCounter, 0 mSdLazyCounter, 2565 mSolverCounterSat, 109 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 28126 SdHoareTripleChecker+Invalid, 2686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 2565 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:19,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 28126 Invalid, 2686 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [109 Valid, 2565 Invalid, 12 Unknown, 0 Unchecked, 55.0s Time] [2022-11-03 02:24:19,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17782 states. [2022-11-03 02:24:20,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17782 to 16788. [2022-11-03 02:24:20,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16788 states, 10636 states have (on average 1.3217374952989847) internal successors, (14058), 10877 states have internal predecessors, (14058), 5433 states have call successors, (5433), 716 states have call predecessors, (5433), 718 states have return successors, (5460), 5414 states have call predecessors, (5460), 5430 states have call successors, (5460) [2022-11-03 02:24:20,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16788 states to 16788 states and 24951 transitions. [2022-11-03 02:24:20,217 INFO L78 Accepts]: Start accepts. Automaton has 16788 states and 24951 transitions. Word has length 695 [2022-11-03 02:24:20,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:20,218 INFO L495 AbstractCegarLoop]: Abstraction has 16788 states and 24951 transitions. [2022-11-03 02:24:20,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 2 states have call successors, (114), 2 states have call predecessors, (114), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2022-11-03 02:24:20,218 INFO L276 IsEmpty]: Start isEmpty. Operand 16788 states and 24951 transitions. [2022-11-03 02:24:20,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 715 [2022-11-03 02:24:20,290 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:20,291 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 8, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:24:20,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 02:24:20,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:24:20,492 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:20,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:20,493 INFO L85 PathProgramCache]: Analyzing trace with hash 161943251, now seen corresponding path program 1 times [2022-11-03 02:24:20,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:20,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589388372] [2022-11-03 02:24:20,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:20,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:21,361 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:24:21,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [444499420] [2022-11-03 02:24:21,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:21,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:24:21,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:24:21,362 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:24:21,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2013c1-6ba0-4a96-8c33-4156532dc384/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 02:24:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:29,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 22855 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:24:29,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:29,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1019 backedges. 253 proven. 0 refuted. 0 times theorem prover too weak. 766 trivial. 0 not checked. [2022-11-03 02:24:29,986 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:29,987 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:29,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589388372] [2022-11-03 02:24:29,987 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:24:29,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444499420] [2022-11-03 02:24:29,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444499420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:29,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:29,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:24:29,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544493932] [2022-11-03 02:24:29,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:29,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:24:29,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:29,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:24:29,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:24:29,991 INFO L87 Difference]: Start difference. First operand 16788 states and 24951 transitions. Second operand has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 2 states have call successors, (119), 2 states have call predecessors, (119), 2 states have return successors, (117), 2 states have call predecessors, (117), 2 states have call successors, (117) [2022-11-03 02:24:34,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:44,627 WARN L539 Checker$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 02:24:46,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:48,978 WARN L539 Checker$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 02:24:53,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:55,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []