./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5994a-6c52-4b75-814c-568b5295d58a/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5994a-6c52-4b75-814c-568b5295d58a/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5994a-6c52-4b75-814c-568b5295d58a/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5994a-6c52-4b75-814c-568b5295d58a/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5994a-6c52-4b75-814c-568b5295d58a/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5994a-6c52-4b75-814c-568b5295d58a/bin/utaipan-g80aRyZoba --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 189c9c1835fba5722e0b94d8232e079a97aae7f53f40713e9106571ffb9cd9c4 --- 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-b5237d8 [2022-11-22 01:49:01,061 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:49:01,064 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:49:01,094 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:49:01,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:49:01,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:49:01,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:49:01,099 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:49:01,101 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:49:01,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:49:01,104 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:49:01,105 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:49:01,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:49:01,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:49:01,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:49:01,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:49:01,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:49:01,112 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:49:01,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:49:01,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:49:01,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:49:01,124 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:49:01,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:49:01,126 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:49:01,130 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:49:01,130 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:49:01,131 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:49:01,132 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:49:01,132 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:49:01,133 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:49:01,134 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:49:01,135 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:49:01,135 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:49:01,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:49:01,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:49:01,138 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:49:01,143 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:49:01,144 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:49:01,144 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:49:01,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:49:01,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:49:01,150 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5994a-6c52-4b75-814c-568b5295d58a/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:49:01,219 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:49:01,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:49:01,220 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:49:01,220 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:49:01,221 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:49:01,222 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:49:01,222 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:49:01,222 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:49:01,222 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:49:01,222 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:49:01,224 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:49:01,224 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:49:01,224 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:49:01,224 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:49:01,225 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:49:01,225 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:49:01,225 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:49:01,225 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:49:01,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:49:01,226 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:49:01,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:49:01,227 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:49:01,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:49:01,227 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:49:01,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:49:01,228 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:49:01,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:49:01,229 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:49:01,229 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:49:01,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:49:01,230 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:49:01,231 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:49:01,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:49:01,231 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:49:01,232 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:49:01,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:49:01,232 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:49:01,232 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:49:01,232 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_60e5994a-6c52-4b75-814c-568b5295d58a/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5994a-6c52-4b75-814c-568b5295d58a/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 189c9c1835fba5722e0b94d8232e079a97aae7f53f40713e9106571ffb9cd9c4 [2022-11-22 01:49:01,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:49:01,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:49:01,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:49:01,660 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:49:01,661 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:49:01,662 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5994a-6c52-4b75-814c-568b5295d58a/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-11-22 01:49:04,908 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:49:05,777 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:49:05,778 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5994a-6c52-4b75-814c-568b5295d58a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-11-22 01:49:05,870 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5994a-6c52-4b75-814c-568b5295d58a/bin/utaipan-g80aRyZoba/data/87ed2b35f/1605cd8231b0470097d836a386860da8/FLAG1563a407a [2022-11-22 01:49:05,921 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5994a-6c52-4b75-814c-568b5295d58a/bin/utaipan-g80aRyZoba/data/87ed2b35f/1605cd8231b0470097d836a386860da8 [2022-11-22 01:49:05,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:49:05,943 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:49:05,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:49:05,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:49:05,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:49:05,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:49:05" (1/1) ... [2022-11-22 01:49:05,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f1e51e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:05, skipping insertion in model container [2022-11-22 01:49:05,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:49:05" (1/1) ... [2022-11-22 01:49:05,980 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:49:06,182 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:49:10,778 WARN L237 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_60e5994a-6c52-4b75-814c-568b5295d58a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484314,484327] [2022-11-22 01:49:10,784 WARN L237 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_60e5994a-6c52-4b75-814c-568b5295d58a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484461,484474] [2022-11-22 01:49:10,784 WARN L237 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_60e5994a-6c52-4b75-814c-568b5295d58a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484600,484613] [2022-11-22 01:49:10,785 WARN L237 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_60e5994a-6c52-4b75-814c-568b5295d58a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484758,484771] [2022-11-22 01:49:10,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:49:10,866 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:49:11,407 WARN L237 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_60e5994a-6c52-4b75-814c-568b5295d58a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484314,484327] [2022-11-22 01:49:11,408 WARN L237 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_60e5994a-6c52-4b75-814c-568b5295d58a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484461,484474] [2022-11-22 01:49:11,409 WARN L237 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_60e5994a-6c52-4b75-814c-568b5295d58a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484600,484613] [2022-11-22 01:49:11,409 WARN L237 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_60e5994a-6c52-4b75-814c-568b5295d58a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484758,484771] [2022-11-22 01:49:11,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:49:11,699 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:49:11,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:11 WrapperNode [2022-11-22 01:49:11,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:49:11,701 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:49:11,701 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:49:11,701 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:49:11,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:11" (1/1) ... [2022-11-22 01:49:11,878 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:11" (1/1) ... [2022-11-22 01:49:12,215 INFO L138 Inliner]: procedures = 581, calls = 3848, calls flagged for inlining = 356, calls inlined = 344, statements flattened = 10301 [2022-11-22 01:49:12,216 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:49:12,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:49:12,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:49:12,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:49:12,228 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:11" (1/1) ... [2022-11-22 01:49:12,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:11" (1/1) ... [2022-11-22 01:49:12,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:11" (1/1) ... [2022-11-22 01:49:12,369 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:11" (1/1) ... [2022-11-22 01:49:12,559 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:11" (1/1) ... [2022-11-22 01:49:12,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:11" (1/1) ... [2022-11-22 01:49:12,655 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:11" (1/1) ... [2022-11-22 01:49:12,689 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:11" (1/1) ... [2022-11-22 01:49:12,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:49:12,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:49:12,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:49:12,761 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:49:12,762 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:11" (1/1) ... [2022-11-22 01:49:12,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:49:12,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5994a-6c52-4b75-814c-568b5295d58a/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:49:12,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5994a-6c52-4b75-814c-568b5295d58a/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:49:12,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5994a-6c52-4b75-814c-568b5295d58a/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:49:12,840 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-22 01:49:12,841 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-22 01:49:12,841 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-22 01:49:12,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-22 01:49:12,841 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_core [2022-11-22 01:49:12,841 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_core [2022-11-22 01:49:12,841 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-11-22 01:49:12,841 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-11-22 01:49:12,842 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_post_phy_linkchg [2022-11-22 01:49:12,842 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_post_phy_linkchg [2022-11-22 01:49:12,842 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-22 01:49:12,842 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-22 01:49:12,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 01:49:12,842 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 01:49:12,842 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-22 01:49:12,842 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-22 01:49:12,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:49:12,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:49:12,843 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_rx_ring [2022-11-22 01:49:12,844 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_rx_ring [2022-11-22 01:49:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-22 01:49:12,844 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-22 01:49:12,845 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-22 01:49:12,845 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-22 01:49:12,845 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 01:49:12,845 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 01:49:12,846 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-22 01:49:12,846 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-22 01:49:12,846 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_current_addr [2022-11-22 01:49:12,847 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_current_addr [2022-11-22 01:49:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 01:49:12,847 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 01:49:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_mac [2022-11-22 01:49:12,847 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_mac [2022-11-22 01:49:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_irq_disable [2022-11-22 01:49:12,848 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_irq_disable [2022-11-22 01:49:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_stop_phy_polling [2022-11-22 01:49:12,848 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_stop_phy_polling [2022-11-22 01:49:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-22 01:49:12,848 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-22 01:49:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 01:49:12,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 01:49:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-22 01:49:12,849 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-22 01:49:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-22 01:49:12,849 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-22 01:49:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-22 01:49:12,850 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-22 01:49:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 01:49:12,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 01:49:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-11-22 01:49:12,850 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-11-22 01:49:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-22 01:49:12,850 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-22 01:49:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-22 01:49:12,851 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-22 01:49:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-22 01:49:12,851 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-22 01:49:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:49:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-22 01:49:12,851 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-22 01:49:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_speed_and_duplex [2022-11-22 01:49:12,851 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_speed_and_duplex [2022-11-22 01:49:12,852 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-22 01:49:12,852 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-22 01:49:12,852 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_close [2022-11-22 01:49:12,852 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_close [2022-11-22 01:49:12,852 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 01:49:12,853 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 01:49:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-22 01:49:12,853 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-22 01:49:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_reg [2022-11-22 01:49:12,853 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_reg [2022-11-22 01:49:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 01:49:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_init [2022-11-22 01:49:12,854 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_init [2022-11-22 01:49:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_dbg [2022-11-22 01:49:12,855 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_dbg [2022-11-22 01:49:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_regs_len [2022-11-22 01:49:12,855 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_regs_len [2022-11-22 01:49:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 01:49:12,855 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 01:49:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-22 01:49:12,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-22 01:49:12,856 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_free_ring_resources [2022-11-22 01:49:12,856 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_free_ring_resources [2022-11-22 01:49:12,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 01:49:12,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 01:49:12,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 01:49:12,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:49:12,857 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-22 01:49:12,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-22 01:49:12,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 01:49:12,858 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 01:49:12,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-22 01:49:12,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-22 01:49:12,858 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-22 01:49:12,858 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-22 01:49:12,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 01:49:12,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 01:49:12,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 01:49:12,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 01:49:12,859 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-22 01:49:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-22 01:49:12,860 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_multi [2022-11-22 01:49:12,864 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_multi [2022-11-22 01:49:12,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:49:12,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-22 01:49:12,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-22 01:49:12,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-22 01:49:12,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-22 01:49:12,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-22 01:49:12,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-22 01:49:12,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-22 01:49:12,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-22 01:49:12,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:49:12,872 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-22 01:49:12,872 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-22 01:49:12,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 01:49:12,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 01:49:12,873 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 01:49:12,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 01:49:12,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:49:12,873 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_start_phy_polling [2022-11-22 01:49:12,874 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_start_phy_polling [2022-11-22 01:49:12,874 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-22 01:49:12,874 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-22 01:49:12,874 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-22 01:49:12,874 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:49:12,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:49:12,874 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-22 01:49:12,874 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-22 01:49:12,874 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:49:12,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:49:12,875 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-22 01:49:12,875 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-22 01:49:12,875 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_core [2022-11-22 01:49:12,875 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_core [2022-11-22 01:49:12,875 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_wait_until_idle [2022-11-22 01:49:12,875 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_wait_until_idle [2022-11-22 01:49:12,875 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-22 01:49:12,875 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-22 01:49:12,875 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 01:49:12,876 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 01:49:12,876 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_check_link_status [2022-11-22 01:49:12,876 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_check_link_status [2022-11-22 01:49:12,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-22 01:49:12,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-22 01:49:12,877 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_alloc_rx_buffer [2022-11-22 01:49:12,877 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_alloc_rx_buffer [2022-11-22 01:49:12,877 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_io_resume [2022-11-22 01:49:12,877 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_io_resume [2022-11-22 01:49:12,877 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_dbg [2022-11-22 01:49:12,877 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_dbg [2022-11-22 01:49:12,877 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_wait_mdio_idle [2022-11-22 01:49:12,878 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_wait_mdio_idle [2022-11-22 01:49:12,878 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-22 01:49:12,878 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-22 01:49:12,878 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-22 01:49:12,878 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-22 01:49:12,878 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_vlan_mode [2022-11-22 01:49:12,879 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_vlan_mode [2022-11-22 01:49:12,879 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_tx_buffer [2022-11-22 01:49:12,879 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_tx_buffer [2022-11-22 01:49:12,879 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2022-11-22 01:49:12,879 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2022-11-22 01:49:12,879 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_down [2022-11-22 01:49:12,879 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_down [2022-11-22 01:49:12,879 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_suspend [2022-11-22 01:49:12,879 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_suspend [2022-11-22 01:49:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:49:12,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:49:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-22 01:49:12,880 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-22 01:49:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-22 01:49:12,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-22 01:49:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-22 01:49:12,880 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-22 01:49:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 01:49:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:49:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 01:49:12,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 01:49:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-22 01:49:12,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-22 01:49:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-22 01:49:12,881 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-22 01:49:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_tx_timeout [2022-11-22 01:49:12,881 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_tx_timeout [2022-11-22 01:49:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-22 01:49:12,881 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-22 01:49:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-22 01:49:12,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-22 01:49:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_tpd [2022-11-22 01:49:12,882 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_tpd [2022-11-22 01:49:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_hw_set_mac_addr [2022-11-22 01:49:12,882 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_hw_set_mac_addr [2022-11-22 01:49:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-22 01:49:12,882 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-22 01:49:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-22 01:49:12,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-22 01:49:12,883 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-22 01:49:12,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-22 01:49:12,883 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_restart_autoneg [2022-11-22 01:49:12,883 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_restart_autoneg [2022-11-22 01:49:12,883 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_rxbufsize [2022-11-22 01:49:12,883 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_rxbufsize [2022-11-22 01:49:12,883 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-22 01:49:12,883 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-22 01:49:12,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 01:49:12,884 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 01:49:12,884 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_free_irq [2022-11-22 01:49:12,884 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_free_irq [2022-11-22 01:49:12,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-22 01:49:12,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-22 01:49:12,884 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_ext [2022-11-22 01:49:12,884 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_ext [2022-11-22 01:49:12,884 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-22 01:49:12,884 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-22 01:49:12,884 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-22 01:49:12,885 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-22 01:49:12,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:49:12,885 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-22 01:49:12,885 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-22 01:49:12,885 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-22 01:49:12,885 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-22 01:49:12,885 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_nway_reset [2022-11-22 01:49:12,885 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_nway_reset [2022-11-22 01:49:12,885 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_dma_ring [2022-11-22 01:49:12,885 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_dma_ring [2022-11-22 01:49:12,886 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-22 01:49:12,886 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-22 01:49:12,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2022-11-22 01:49:12,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2022-11-22 01:49:12,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:49:12,890 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_irq_enable [2022-11-22 01:49:12,891 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_irq_enable [2022-11-22 01:49:12,891 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-22 01:49:12,983 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-22 01:49:12,983 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_eeprom_len [2022-11-22 01:49:12,983 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_eeprom_len [2022-11-22 01:49:12,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:49:12,983 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-22 01:49:12,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-22 01:49:12,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-22 01:49:12,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-22 01:49:12,983 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_check_eeprom_exist [2022-11-22 01:49:12,983 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_check_eeprom_exist [2022-11-22 01:49:12,983 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-22 01:49:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-22 01:49:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-22 01:49:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-22 01:49:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-22 01:49:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-22 01:49:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_netpoll [2022-11-22 01:49:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_netpoll [2022-11-22 01:49:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 01:49:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 01:49:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 01:49:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 01:49:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-22 01:49:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-22 01:49:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_configure [2022-11-22 01:49:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_configure [2022-11-22 01:49:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-11-22 01:49:12,985 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-11-22 01:49:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_tx_ring [2022-11-22 01:49:12,985 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_tx_ring [2022-11-22 01:49:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_reset [2022-11-22 01:49:12,985 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_reset [2022-11-22 01:49:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_open [2022-11-22 01:49:12,985 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_open [2022-11-22 01:49:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-22 01:49:12,985 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-22 01:49:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-22 01:49:12,985 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-22 01:49:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_atl1c_driver_exit_16_2 [2022-11-22 01:49:12,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_atl1c_driver_exit_16_2 [2022-11-22 01:49:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-22 01:49:12,986 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-22 01:49:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-22 01:49:12,986 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-22 01:49:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_intr [2022-11-22 01:49:12,986 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_intr [2022-11-22 01:49:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-22 01:49:12,986 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-22 01:49:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_power_saving [2022-11-22 01:49:12,986 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_power_saving [2022-11-22 01:49:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_setup_adv [2022-11-22 01:49:12,986 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_setup_adv [2022-11-22 01:49:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-22 01:49:12,986 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-22 01:49:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 01:49:12,987 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 01:49:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_buffer [2022-11-22 01:49:12,987 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_buffer [2022-11-22 01:49:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_remove [2022-11-22 01:49:12,987 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_remove [2022-11-22 01:49:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:49:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 01:49:12,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 01:49:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-22 01:49:12,987 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-22 01:49:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-22 01:49:12,987 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-22 01:49:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_up [2022-11-22 01:49:12,987 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_up [2022-11-22 01:49:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-22 01:49:12,988 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-22 01:49:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_disable_l0s_l1 [2022-11-22 01:49:12,988 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_disable_l0s_l1 [2022-11-22 01:49:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_resume [2022-11-22 01:49:12,988 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_resume [2022-11-22 01:49:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-11-22 01:49:12,988 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-11-22 01:49:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_pcie [2022-11-22 01:49:12,988 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_pcie [2022-11-22 01:49:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 01:49:12,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 01:49:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-22 01:49:12,988 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-22 01:49:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-22 01:49:12,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-22 01:49:12,989 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_shutdown [2022-11-22 01:49:12,989 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_shutdown [2022-11-22 01:49:12,989 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_aspm [2022-11-22 01:49:12,989 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_aspm [2022-11-22 01:49:12,989 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-22 01:49:12,989 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-22 01:49:12,989 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-22 01:49:12,989 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-22 01:49:12,989 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-22 01:49:12,989 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-22 01:49:12,989 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-22 01:49:12,989 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-22 01:49:12,989 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_reg [2022-11-22 01:49:12,989 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_reg [2022-11-22 01:49:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:49:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 01:49:12,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 01:49:14,439 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:49:14,443 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:49:15,231 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 01:49:25,899 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 01:49:26,420 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:49:30,009 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:49:30,010 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 01:49:30,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:49:30 BoogieIcfgContainer [2022-11-22 01:49:30,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:49:30,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:49:30,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:49:30,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:49:30,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:49:05" (1/3) ... [2022-11-22 01:49:30,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf34f2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:49:30, skipping insertion in model container [2022-11-22 01:49:30,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:11" (2/3) ... [2022-11-22 01:49:30,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf34f2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:49:30, skipping insertion in model container [2022-11-22 01:49:30,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:49:30" (3/3) ... [2022-11-22 01:49:30,030 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-11-22 01:49:30,050 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:49:30,050 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-22 01:49:30,167 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:49:30,182 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;@708effc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:49:30,183 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-22 01:49:30,198 INFO L276 IsEmpty]: Start isEmpty. Operand has 3181 states, 1898 states have (on average 1.2665964172813489) internal successors, (2404), 1937 states have internal predecessors, (2404), 1121 states have call successors, (1121), 161 states have call predecessors, (1121), 160 states have return successors, (1112), 1103 states have call predecessors, (1112), 1112 states have call successors, (1112) [2022-11-22 01:49:30,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-11-22 01:49:30,222 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:49:30,222 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 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] [2022-11-22 01:49:30,223 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:49:30,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:49:30,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1160919242, now seen corresponding path program 1 times [2022-11-22 01:49:30,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:49:30,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759220287] [2022-11-22 01:49:30,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:49:30,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:49:30,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:49:31,237 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1125 trivial. 0 not checked. [2022-11-22 01:49:31,237 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:49:31,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759220287] [2022-11-22 01:49:31,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759220287] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:49:31,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:49:31,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:49:31,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371978718] [2022-11-22 01:49:31,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:49:31,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:49:31,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:49:31,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:49:31,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:49:31,307 INFO L87 Difference]: Start difference. First operand has 3181 states, 1898 states have (on average 1.2665964172813489) internal successors, (2404), 1937 states have internal predecessors, (2404), 1121 states have call successors, (1121), 161 states have call predecessors, (1121), 160 states have return successors, (1112), 1103 states have call predecessors, (1112), 1112 states have call successors, (1112) Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-22 01:49:34,086 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 [] [2022-11-22 01:49:38,216 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 [] [2022-11-22 01:49:39,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:49:39,446 INFO L93 Difference]: Finished difference Result 9386 states and 13698 transitions. [2022-11-22 01:49:39,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:49:39,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 193 [2022-11-22 01:49:39,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:49:39,535 INFO L225 Difference]: With dead ends: 9386 [2022-11-22 01:49:39,535 INFO L226 Difference]: Without dead ends: 6227 [2022-11-22 01:49:39,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:49:39,569 INFO L413 NwaCegarLoop]: 5179 mSDtfsCounter, 4493 mSDsluCounter, 4071 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4493 SdHoareTripleChecker+Valid, 9250 SdHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:49:39,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4493 Valid, 9250 Invalid, 1069 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1058 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2022-11-22 01:49:39,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6227 states. [2022-11-22 01:49:40,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6227 to 6223. [2022-11-22 01:49:40,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6223 states, 3727 states have (on average 1.2632143815401127) internal successors, (4708), 3805 states have internal predecessors, (4708), 2178 states have call successors, (2178), 317 states have call predecessors, (2178), 316 states have return successors, (2175), 2156 states have call predecessors, (2175), 2175 states have call successors, (2175) [2022-11-22 01:49:40,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6223 states to 6223 states and 9061 transitions. [2022-11-22 01:49:40,274 INFO L78 Accepts]: Start accepts. Automaton has 6223 states and 9061 transitions. Word has length 193 [2022-11-22 01:49:40,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:49:40,280 INFO L495 AbstractCegarLoop]: Abstraction has 6223 states and 9061 transitions. [2022-11-22 01:49:40,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-22 01:49:40,280 INFO L276 IsEmpty]: Start isEmpty. Operand 6223 states and 9061 transitions. [2022-11-22 01:49:40,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-11-22 01:49:40,301 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:49:40,302 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:49:40,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:49:40,303 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:49:40,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:49:40,304 INFO L85 PathProgramCache]: Analyzing trace with hash -893623242, now seen corresponding path program 1 times [2022-11-22 01:49:40,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:49:40,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102296289] [2022-11-22 01:49:40,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:49:40,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:49:40,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:49:40,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2022-11-22 01:49:40,932 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:49:40,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102296289] [2022-11-22 01:49:40,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102296289] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:49:40,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:49:40,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:49:40,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906700603] [2022-11-22 01:49:40,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:49:40,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:49:40,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:49:40,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:49:40,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:49:40,936 INFO L87 Difference]: Start difference. First operand 6223 states and 9061 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-22 01:49:43,469 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 [] [2022-11-22 01:49:49,038 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 [] [2022-11-22 01:49:49,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:49:49,908 INFO L93 Difference]: Finished difference Result 14890 states and 21628 transitions. [2022-11-22 01:49:49,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:49:49,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 208 [2022-11-22 01:49:49,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:49:49,975 INFO L225 Difference]: With dead ends: 14890 [2022-11-22 01:49:49,975 INFO L226 Difference]: Without dead ends: 8702 [2022-11-22 01:49:50,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:49:50,009 INFO L413 NwaCegarLoop]: 5194 mSDtfsCounter, 4005 mSDsluCounter, 4041 mSDsCounter, 0 mSdLazyCounter, 1107 mSolverCounterSat, 19 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4005 SdHoareTripleChecker+Valid, 9235 SdHoareTripleChecker+Invalid, 1128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1107 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:49:50,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4005 Valid, 9235 Invalid, 1128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1107 Invalid, 2 Unknown, 0 Unchecked, 8.5s Time] [2022-11-22 01:49:50,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8702 states. [2022-11-22 01:49:50,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8702 to 8693. [2022-11-22 01:49:50,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8693 states, 5221 states have (on average 1.2585711549511587) internal successors, (6571), 5325 states have internal predecessors, (6571), 3006 states have call successors, (3006), 466 states have call predecessors, (3006), 464 states have return successors, (3003), 2973 states have call predecessors, (3003), 3003 states have call successors, (3003) [2022-11-22 01:49:50,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8693 states to 8693 states and 12580 transitions. [2022-11-22 01:49:50,774 INFO L78 Accepts]: Start accepts. Automaton has 8693 states and 12580 transitions. Word has length 208 [2022-11-22 01:49:50,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:49:50,777 INFO L495 AbstractCegarLoop]: Abstraction has 8693 states and 12580 transitions. [2022-11-22 01:49:50,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-22 01:49:50,778 INFO L276 IsEmpty]: Start isEmpty. Operand 8693 states and 12580 transitions. [2022-11-22 01:49:50,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-11-22 01:49:50,785 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:49:50,789 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 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] [2022-11-22 01:49:50,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:49:50,790 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:49:50,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:49:50,800 INFO L85 PathProgramCache]: Analyzing trace with hash -819185331, now seen corresponding path program 1 times [2022-11-22 01:49:50,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:49:50,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517337637] [2022-11-22 01:49:50,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:49:50,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:49:50,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:49:51,186 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1125 trivial. 0 not checked. [2022-11-22 01:49:51,186 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:49:51,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517337637] [2022-11-22 01:49:51,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517337637] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:49:51,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:49:51,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:49:51,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295465612] [2022-11-22 01:49:51,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:49:51,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:49:51,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:49:51,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:49:51,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:49:51,189 INFO L87 Difference]: Start difference. First operand 8693 states and 12580 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-22 01:49:53,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:49:58,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:49:59,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:50:00,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:00,289 INFO L93 Difference]: Finished difference Result 23104 states and 33446 transitions. [2022-11-22 01:50:00,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:50:00,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 221 [2022-11-22 01:50:00,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:00,415 INFO L225 Difference]: With dead ends: 23104 [2022-11-22 01:50:00,415 INFO L226 Difference]: Without dead ends: 14446 [2022-11-22 01:50:00,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:50:00,473 INFO L413 NwaCegarLoop]: 5374 mSDtfsCounter, 4450 mSDsluCounter, 4061 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4450 SdHoareTripleChecker+Valid, 9435 SdHoareTripleChecker+Invalid, 1128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:00,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4450 Valid, 9435 Invalid, 1128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1115 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2022-11-22 01:50:00,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14446 states. [2022-11-22 01:50:01,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14446 to 14433. [2022-11-22 01:50:01,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14433 states, 8668 states have (on average 1.2568066451315183) internal successors, (10894), 8850 states have internal predecessors, (10894), 4993 states have call successors, (4993), 773 states have call predecessors, (4993), 770 states have return successors, (4990), 4931 states have call predecessors, (4990), 4990 states have call successors, (4990) [2022-11-22 01:50:01,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14433 states to 14433 states and 20877 transitions. [2022-11-22 01:50:01,632 INFO L78 Accepts]: Start accepts. Automaton has 14433 states and 20877 transitions. Word has length 221 [2022-11-22 01:50:01,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:01,634 INFO L495 AbstractCegarLoop]: Abstraction has 14433 states and 20877 transitions. [2022-11-22 01:50:01,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-22 01:50:01,634 INFO L276 IsEmpty]: Start isEmpty. Operand 14433 states and 20877 transitions. [2022-11-22 01:50:01,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-11-22 01:50:01,644 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:01,645 INFO L195 NwaCegarLoop]: trace histogram [19, 17, 17, 17, 17, 17, 17, 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] [2022-11-22 01:50:01,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:50:01,645 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:50:01,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:01,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1252143456, now seen corresponding path program 1 times [2022-11-22 01:50:01,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:01,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328848634] [2022-11-22 01:50:01,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:01,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:22,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:57:06,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1164 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1161 trivial. 0 not checked. [2022-11-22 01:57:06,810 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:57:06,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328848634] [2022-11-22 01:57:06,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328848634] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:57:06,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:57:06,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:57:06,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300400667] [2022-11-22 01:57:06,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:57:06,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:57:06,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:57:06,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:57:06,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:57:06,813 INFO L87 Difference]: Start difference. First operand 14433 states and 20877 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-22 01:57:12,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:57:14,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:57:16,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:57:16,216 INFO L93 Difference]: Finished difference Result 36448 states and 52507 transitions. [2022-11-22 01:57:16,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:57:16,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 224 [2022-11-22 01:57:16,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:57:16,334 INFO L225 Difference]: With dead ends: 36448 [2022-11-22 01:57:16,334 INFO L226 Difference]: Without dead ends: 22050 [2022-11-22 01:57:16,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:57:16,393 INFO L413 NwaCegarLoop]: 4893 mSDtfsCounter, 3333 mSDsluCounter, 4026 mSDsCounter, 0 mSdLazyCounter, 1078 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3333 SdHoareTripleChecker+Valid, 8919 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1078 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:57:16,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3333 Valid, 8919 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1078 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2022-11-22 01:57:16,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22050 states. [2022-11-22 01:57:17,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22050 to 22035. [2022-11-22 01:57:17,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22035 states, 13176 states have (on average 1.2502276867030966) internal successors, (16473), 13467 states have internal predecessors, (16473), 7585 states have call successors, (7585), 1281 states have call predecessors, (7585), 1272 states have return successors, (7586), 7471 states have call predecessors, (7586), 7582 states have call successors, (7586) [2022-11-22 01:57:18,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22035 states to 22035 states and 31644 transitions. [2022-11-22 01:57:18,082 INFO L78 Accepts]: Start accepts. Automaton has 22035 states and 31644 transitions. Word has length 224 [2022-11-22 01:57:18,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:57:18,084 INFO L495 AbstractCegarLoop]: Abstraction has 22035 states and 31644 transitions. [2022-11-22 01:57:18,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-22 01:57:18,084 INFO L276 IsEmpty]: Start isEmpty. Operand 22035 states and 31644 transitions. [2022-11-22 01:57:18,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-11-22 01:57:18,092 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:57:18,093 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 5, 5, 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] [2022-11-22 01:57:18,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:57:18,093 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:57:18,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:57:18,094 INFO L85 PathProgramCache]: Analyzing trace with hash -2008984649, now seen corresponding path program 1 times [2022-11-22 01:57:18,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:57:18,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90187607] [2022-11-22 01:57:18,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:57:18,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:57:18,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:57:18,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1270 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1270 trivial. 0 not checked. [2022-11-22 01:57:18,919 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:57:18,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90187607] [2022-11-22 01:57:18,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90187607] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:57:18,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:57:18,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:57:18,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142993053] [2022-11-22 01:57:18,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:57:18,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:57:18,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:57:18,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:57:18,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:57:18,923 INFO L87 Difference]: Start difference. First operand 22035 states and 31644 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-22 01:57:21,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:57:22,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:57:26,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:57:29,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:57:30,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:57:30,211 INFO L93 Difference]: Finished difference Result 42173 states and 60614 transitions. [2022-11-22 01:57:30,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:57:30,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 237 [2022-11-22 01:57:30,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:57:30,430 INFO L225 Difference]: With dead ends: 42173 [2022-11-22 01:57:30,431 INFO L226 Difference]: Without dead ends: 42102 [2022-11-22 01:57:30,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:57:30,461 INFO L413 NwaCegarLoop]: 5176 mSDtfsCounter, 4537 mSDsluCounter, 9209 mSDsCounter, 0 mSdLazyCounter, 1556 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4537 SdHoareTripleChecker+Valid, 14385 SdHoareTripleChecker+Invalid, 1557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1556 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:57:30,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4537 Valid, 14385 Invalid, 1557 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1556 Invalid, 1 Unknown, 0 Unchecked, 10.0s Time] [2022-11-22 01:57:30,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42102 states. [2022-11-22 01:57:33,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42102 to 42100. [2022-11-22 01:57:33,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42100 states, 25201 states have (on average 1.250664656164438) internal successors, (31518), 25738 states have internal predecessors, (31518), 14476 states have call successors, (14476), 2434 states have call predecessors, (14476), 2421 states have return successors, (14481), 14282 states have call predecessors, (14481), 14473 states have call successors, (14481) [2022-11-22 01:57:33,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42100 states to 42100 states and 60475 transitions. [2022-11-22 01:57:33,609 INFO L78 Accepts]: Start accepts. Automaton has 42100 states and 60475 transitions. Word has length 237 [2022-11-22 01:57:33,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:57:33,610 INFO L495 AbstractCegarLoop]: Abstraction has 42100 states and 60475 transitions. [2022-11-22 01:57:33,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-22 01:57:33,611 INFO L276 IsEmpty]: Start isEmpty. Operand 42100 states and 60475 transitions. [2022-11-22 01:57:33,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-11-22 01:57:33,630 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:57:33,631 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 5, 5, 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] [2022-11-22 01:57:33,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:57:33,631 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:57:33,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:57:33,632 INFO L85 PathProgramCache]: Analyzing trace with hash -107324986, now seen corresponding path program 1 times [2022-11-22 01:57:33,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:57:33,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107667429] [2022-11-22 01:57:33,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:57:33,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:57:34,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:57:34,510 INFO L134 CoverageAnalysis]: Checked inductivity of 1269 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1266 trivial. 0 not checked. [2022-11-22 01:57:34,510 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:57:34,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107667429] [2022-11-22 01:57:34,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107667429] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:57:34,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:57:34,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:57:34,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605205237] [2022-11-22 01:57:34,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:57:34,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:57:34,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:57:34,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:57:34,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:57:34,513 INFO L87 Difference]: Start difference. First operand 42100 states and 60475 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-22 01:57:39,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:57:42,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:57:45,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:57:45,114 INFO L93 Difference]: Finished difference Result 100986 states and 145125 transitions. [2022-11-22 01:57:45,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:57:45,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 257 [2022-11-22 01:57:45,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:57:45,504 INFO L225 Difference]: With dead ends: 100986 [2022-11-22 01:57:45,504 INFO L226 Difference]: Without dead ends: 60783 [2022-11-22 01:57:45,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:57:45,722 INFO L413 NwaCegarLoop]: 7553 mSDtfsCounter, 3999 mSDsluCounter, 4039 mSDsCounter, 0 mSdLazyCounter, 1526 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3999 SdHoareTripleChecker+Valid, 11592 SdHoareTripleChecker+Invalid, 1542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1526 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:57:45,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3999 Valid, 11592 Invalid, 1542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1526 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2022-11-22 01:57:45,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60783 states. [2022-11-22 01:57:48,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60783 to 60764. [2022-11-22 01:57:48,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60764 states, 36405 states have (on average 1.2495536327427552) internal successors, (45490), 37174 states have internal predecessors, (45490), 20844 states have call successors, (20844), 3534 states have call predecessors, (20844), 3513 states have return successors, (20853), 20558 states have call predecessors, (20853), 20841 states have call successors, (20853) [2022-11-22 01:57:49,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60764 states to 60764 states and 87187 transitions. [2022-11-22 01:57:49,218 INFO L78 Accepts]: Start accepts. Automaton has 60764 states and 87187 transitions. Word has length 257 [2022-11-22 01:57:49,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:57:49,219 INFO L495 AbstractCegarLoop]: Abstraction has 60764 states and 87187 transitions. [2022-11-22 01:57:49,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-22 01:57:49,219 INFO L276 IsEmpty]: Start isEmpty. Operand 60764 states and 87187 transitions. [2022-11-22 01:57:49,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-11-22 01:57:49,249 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:57:49,250 INFO L195 NwaCegarLoop]: trace histogram [22, 17, 17, 17, 17, 17, 17, 6, 6, 3, 3, 3, 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] [2022-11-22 01:57:49,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:57:49,250 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:57:49,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:57:49,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1500786748, now seen corresponding path program 1 times [2022-11-22 01:57:49,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:57:49,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125688120] [2022-11-22 01:57:49,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:57:49,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:57:49,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:57:50,072 INFO L134 CoverageAnalysis]: Checked inductivity of 1339 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1332 trivial. 0 not checked. [2022-11-22 01:57:50,073 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:57:50,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125688120] [2022-11-22 01:57:50,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125688120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:57:50,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:57:50,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:57:50,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670664940] [2022-11-22 01:57:50,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:57:50,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:57:50,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:57:50,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:57:50,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:57:50,076 INFO L87 Difference]: Start difference. First operand 60764 states and 87187 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-22 01:57:55,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:57:58,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:58:01,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:58:01,648 INFO L93 Difference]: Finished difference Result 148644 states and 213405 transitions. [2022-11-22 01:58:01,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:58:01,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 282 [2022-11-22 01:58:01,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:58:02,277 INFO L225 Difference]: With dead ends: 148644 [2022-11-22 01:58:02,278 INFO L226 Difference]: Without dead ends: 89777 [2022-11-22 01:58:02,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:58:02,765 INFO L413 NwaCegarLoop]: 8022 mSDtfsCounter, 4428 mSDsluCounter, 4059 mSDsCounter, 0 mSdLazyCounter, 1564 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4428 SdHoareTripleChecker+Valid, 12081 SdHoareTripleChecker+Invalid, 1575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1564 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:58:02,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4428 Valid, 12081 Invalid, 1575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1564 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2022-11-22 01:58:02,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89777 states. [2022-11-22 01:58:07,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89777 to 89736. [2022-11-22 01:58:07,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89736 states, 53769 states have (on average 1.249084044709777) internal successors, (67162), 54928 states have internal predecessors, (67162), 30784 states have call successors, (30784), 5212 states have call predecessors, (30784), 5181 states have return successors, (30799), 30342 states have call predecessors, (30799), 30781 states have call successors, (30799) [2022-11-22 01:58:08,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89736 states to 89736 states and 128745 transitions. [2022-11-22 01:58:08,030 INFO L78 Accepts]: Start accepts. Automaton has 89736 states and 128745 transitions. Word has length 282 [2022-11-22 01:58:08,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:58:08,033 INFO L495 AbstractCegarLoop]: Abstraction has 89736 states and 128745 transitions. [2022-11-22 01:58:08,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-22 01:58:08,033 INFO L276 IsEmpty]: Start isEmpty. Operand 89736 states and 128745 transitions. [2022-11-22 01:58:08,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-11-22 01:58:08,089 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:58:08,089 INFO L195 NwaCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 6, 6, 4, 4, 4, 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] [2022-11-22 01:58:08,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 01:58:08,090 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:58:08,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:58:08,090 INFO L85 PathProgramCache]: Analyzing trace with hash -836400822, now seen corresponding path program 1 times [2022-11-22 01:58:08,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:58:08,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303828007] [2022-11-22 01:58:08,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:58:08,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:58:08,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:58:08,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1452 trivial. 0 not checked. [2022-11-22 01:58:08,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:58:08,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303828007] [2022-11-22 01:58:08,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303828007] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:58:08,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:58:08,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:58:08,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864994336] [2022-11-22 01:58:08,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:58:08,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:58:08,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:58:08,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:58:08,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:58:08,874 INFO L87 Difference]: Start difference. First operand 89736 states and 128745 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-22 01:58:13,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:58:16,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []