./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--libertas--libertas.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42131995-e296-4f7f-a1f3-19edd8ead43e/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42131995-e296-4f7f-a1f3-19edd8ead43e/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42131995-e296-4f7f-a1f3-19edd8ead43e/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42131995-e296-4f7f-a1f3-19edd8ead43e/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--libertas--libertas.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42131995-e296-4f7f-a1f3-19edd8ead43e/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42131995-e296-4f7f-a1f3-19edd8ead43e/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 122a5b8aee7ffa57666a2e715c82a40e311ca1508198b017217f9a7278ea61c3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:39:45,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:39:45,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:39:45,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:39:45,096 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:39:45,100 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:39:45,102 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:39:45,106 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:39:45,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:39:45,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:39:45,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:39:45,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:39:45,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:39:45,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:39:45,121 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:39:45,122 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:39:45,124 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:39:45,125 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:39:45,127 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:39:45,134 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:39:45,135 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:39:45,136 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:39:45,140 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:39:45,141 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:39:45,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:39:45,149 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:39:45,150 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:39:45,152 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:39:45,152 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:39:45,153 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:39:45,154 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:39:45,155 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:39:45,158 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:39:45,159 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:39:45,160 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:39:45,161 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:39:45,161 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:39:45,162 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:39:45,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:39:45,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:39:45,164 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:39:45,165 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42131995-e296-4f7f-a1f3-19edd8ead43e/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:39:45,201 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:39:45,202 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:39:45,202 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:39:45,203 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:39:45,204 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:39:45,204 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:39:45,204 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:39:45,204 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:39:45,205 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:39:45,205 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:39:45,206 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:39:45,207 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:39:45,207 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:39:45,207 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:39:45,207 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:39:45,208 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:39:45,208 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:39:45,208 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:39:45,209 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:39:45,209 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:39:45,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:39:45,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:39:45,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:39:45,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:39:45,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:39:45,211 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:39:45,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:39:45,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:39:45,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:39:45,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:39:45,212 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:39:45,213 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:39:45,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:39:45,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:39:45,214 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:39:45,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:39:45,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:39:45,214 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:39:45,215 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_42131995-e296-4f7f-a1f3-19edd8ead43e/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42131995-e296-4f7f-a1f3-19edd8ead43e/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 122a5b8aee7ffa57666a2e715c82a40e311ca1508198b017217f9a7278ea61c3 [2022-11-03 02:39:45,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:39:45,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:39:45,583 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:39:45,584 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:39:45,585 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:39:45,586 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42131995-e296-4f7f-a1f3-19edd8ead43e/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--libertas--libertas.ko-entry_point.cil.out.i [2022-11-03 02:39:45,675 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42131995-e296-4f7f-a1f3-19edd8ead43e/bin/utaipan-7li7fVZpFI/data/420191630/60a71f6e00174e01926c48734cb0581b/FLAGe76c17679 [2022-11-03 02:39:46,765 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:39:46,766 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42131995-e296-4f7f-a1f3-19edd8ead43e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--libertas--libertas.ko-entry_point.cil.out.i [2022-11-03 02:39:46,849 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42131995-e296-4f7f-a1f3-19edd8ead43e/bin/utaipan-7li7fVZpFI/data/420191630/60a71f6e00174e01926c48734cb0581b/FLAGe76c17679 [2022-11-03 02:39:46,999 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42131995-e296-4f7f-a1f3-19edd8ead43e/bin/utaipan-7li7fVZpFI/data/420191630/60a71f6e00174e01926c48734cb0581b [2022-11-03 02:39:47,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:39:47,004 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:39:47,008 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:39:47,008 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:39:47,011 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:39:47,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:39:47" (1/1) ... [2022-11-03 02:39:47,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d4ab301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:47, skipping insertion in model container [2022-11-03 02:39:47,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:39:47" (1/1) ... [2022-11-03 02:39:47,022 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:39:47,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:39:54,972 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42131995-e296-4f7f-a1f3-19edd8ead43e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--libertas--libertas.ko-entry_point.cil.out.i[692349,692362] [2022-11-03 02:39:55,309 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:39:55,370 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:39:56,280 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42131995-e296-4f7f-a1f3-19edd8ead43e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--libertas--libertas.ko-entry_point.cil.out.i[692349,692362] [2022-11-03 02:39:56,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:39:57,109 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:39:57,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:57 WrapperNode [2022-11-03 02:39:57,109 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:39:57,111 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:39:57,122 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:39:57,122 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:39:57,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:57" (1/1) ... [2022-11-03 02:39:57,459 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:57" (1/1) ... [2022-11-03 02:39:57,860 INFO L138 Inliner]: procedures = 760, calls = 11021, calls flagged for inlining = 280, calls inlined = 248, statements flattened = 18275 [2022-11-03 02:39:57,861 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:39:57,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:39:57,863 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:39:57,863 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:39:57,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:57" (1/1) ... [2022-11-03 02:39:57,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:57" (1/1) ... [2022-11-03 02:39:58,001 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:57" (1/1) ... [2022-11-03 02:39:58,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:57" (1/1) ... [2022-11-03 02:39:58,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:57" (1/1) ... [2022-11-03 02:39:58,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:57" (1/1) ... [2022-11-03 02:39:58,551 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:57" (1/1) ... [2022-11-03 02:39:58,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:57" (1/1) ... [2022-11-03 02:39:58,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:39:58,870 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:39:58,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:39:58,871 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:39:58,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:57" (1/1) ... [2022-11-03 02:39:58,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:39:58,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42131995-e296-4f7f-a1f3-19edd8ead43e/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:39:58,952 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42131995-e296-4f7f-a1f3-19edd8ead43e/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:39:59,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42131995-e296-4f7f-a1f3-19edd8ead43e/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:39:59,066 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mac_event_disconnected [2022-11-03 02:39:59,066 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mac_event_disconnected [2022-11-03 02:39:59,066 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2022-11-03 02:39:59,066 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2022-11-03 02:39:59,066 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-03 02:39:59,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:39:59,067 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:39:59,067 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_access [2022-11-03 02:39:59,067 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_access [2022-11-03 02:39:59,067 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_inform_bss [2022-11-03 02:39:59,067 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_inform_bss [2022-11-03 02:39:59,068 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 02:39:59,068 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 02:39:59,068 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-03 02:39:59,068 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-03 02:39:59,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:39:59,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:39:59,068 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_channel [2022-11-03 02:39:59,069 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_channel [2022-11-03 02:39:59,069 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_mesh [2022-11-03 02:39:59,069 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_mesh [2022-11-03 02:39:59,069 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-11-03 02:39:59,069 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-11-03 02:39:59,069 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-03 02:39:59,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-03 02:39:59,070 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2022-11-03 02:39:59,070 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2022-11-03 02:39:59,070 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_scan [2022-11-03 02:39:59,070 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_scan [2022-11-03 02:39:59,070 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_should_stop [2022-11-03 02:39:59,071 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_should_stop [2022-11-03 02:39:59,071 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-03 02:39:59,071 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-03 02:39:59,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_lbs_private [2022-11-03 02:39:59,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_lbs_private [2022-11-03 02:39:59,072 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_ps_confirm_sleep [2022-11-03 02:39:59,072 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_ps_confirm_sleep [2022-11-03 02:39:59,072 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~X~~u16~0~TO~int [2022-11-03 02:39:59,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~X~~u16~0~TO~int [2022-11-03 02:39:59,073 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_free [2022-11-03 02:39:59,073 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_free [2022-11-03 02:39:59,073 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 02:39:59,073 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 02:39:59,074 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_host_sleep_cfg [2022-11-03 02:39:59,074 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_host_sleep_cfg [2022-11-03 02:39:59,074 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2022-11-03 02:39:59,074 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2022-11-03 02:39:59,075 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-03 02:39:59,075 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 02:39:59,076 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 02:39:59,076 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 02:39:59,076 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 02:39:59,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 02:39:59,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 02:39:59,077 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 02:39:59,077 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 02:39:59,077 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2022-11-03 02:39:59,077 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_key_material [2022-11-03 02:39:59,077 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_key_material [2022-11-03 02:39:59,078 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_cmd_async [2022-11-03 02:39:59,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_cmd_async [2022-11-03 02:39:59,078 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_wep_keys [2022-11-03 02:39:59,079 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_wep_keys [2022-11-03 02:39:59,079 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-03 02:39:59,079 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-03 02:39:59,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:39:59,079 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_auth_to_authtype [2022-11-03 02:39:59,079 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_auth_to_authtype [2022-11-03 02:39:59,080 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2022-11-03 02:39:59,080 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2022-11-03 02:39:59,080 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2022-11-03 02:39:59,081 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2022-11-03 02:39:59,081 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-03 02:39:59,081 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-03 02:39:59,081 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 02:39:59,081 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 02:39:59,082 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_eth_stop [2022-11-03 02:39:59,082 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_eth_stop [2022-11-03 02:39:59,082 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-11-03 02:39:59,082 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-11-03 02:39:59,083 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_free_adapter [2022-11-03 02:39:59,083 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_free_adapter [2022-11-03 02:39:59,087 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 02:39:59,087 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 02:39:59,087 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_iface_active [2022-11-03 02:39:59,088 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_iface_active [2022-11-03 02:39:59,088 INFO L130 BoogieDeclarations]: Found specification of procedure _internal_start_scan [2022-11-03 02:39:59,088 INFO L138 BoogieDeclarations]: Found implementation of procedure _internal_start_scan [2022-11-03 02:39:59,089 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_ps_mode [2022-11-03 02:39:59,089 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_ps_mode [2022-11-03 02:39:59,089 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-03 02:39:59,090 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-03 02:39:59,090 INFO L130 BoogieDeclarations]: Found specification of procedure add_ie_rates [2022-11-03 02:39:59,090 INFO L138 BoogieDeclarations]: Found implementation of procedure add_ie_rates [2022-11-03 02:39:59,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 02:39:59,091 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_remove_mesh [2022-11-03 02:39:59,091 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_remove_mesh [2022-11-03 02:39:59,091 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_ethtool_get_eeprom_len [2022-11-03 02:39:59,091 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_ethtool_get_eeprom_len [2022-11-03 02:39:59,091 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-11-03 02:39:59,091 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-11-03 02:39:59,091 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cmd_async [2022-11-03 02:39:59,092 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cmd_async [2022-11-03 02:39:59,092 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_activated [2022-11-03 02:39:59,102 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_activated [2022-11-03 02:39:59,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 02:39:59,102 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_complete_command [2022-11-03 02:39:59,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_complete_command [2022-11-03 02:39:59,102 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2022-11-03 02:39:59,103 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2022-11-03 02:39:59,104 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_3 [2022-11-03 02:39:59,106 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_3 [2022-11-03 02:39:59,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:39:59,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 02:39:59,107 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 02:39:59,109 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_mcast_worker [2022-11-03 02:39:59,109 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_mcast_worker [2022-11-03 02:39:59,110 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-03 02:39:59,110 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-03 02:39:59,110 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-11-03 02:39:59,116 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-11-03 02:39:59,117 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-03 02:39:59,117 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-03 02:39:59,117 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_priv [2022-11-03 02:39:59,117 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_priv [2022-11-03 02:39:59,117 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_disconnect [2022-11-03 02:39:59,117 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_disconnect [2022-11-03 02:39:59,117 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-11-03 02:39:59,118 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-11-03 02:39:59,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-03 02:39:59,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-03 02:39:59,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:39:59,118 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2022-11-03 02:39:59,118 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2022-11-03 02:39:59,119 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-03 02:39:59,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-03 02:39:59,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:39:59,119 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_stop [2022-11-03 02:39:59,119 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_stop [2022-11-03 02:39:59,119 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_dev_open [2022-11-03 02:39:59,119 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_dev_open [2022-11-03 02:39:59,120 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_remove_wep_keys [2022-11-03 02:39:59,120 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_remove_wep_keys [2022-11-03 02:39:59,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:39:59,120 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_complete_command [2022-11-03 02:39:59,120 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_complete_command [2022-11-03 02:39:59,120 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 02:39:59,120 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_put_bss [2022-11-03 02:39:59,121 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_put_bss [2022-11-03 02:39:59,121 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:39:59,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:39:59,121 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-03 02:39:59,121 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-03 02:39:59,121 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:39:59,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:39:59,122 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-03 02:39:59,122 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-03 02:39:59,122 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_snmp_mib [2022-11-03 02:39:59,122 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_snmp_mib [2022-11-03 02:39:59,122 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_update_mcast [2022-11-03 02:39:59,122 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_update_mcast [2022-11-03 02:39:59,122 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_11d_domain_info [2022-11-03 02:39:59,123 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_11d_domain_info [2022-11-03 02:39:59,123 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-03 02:39:59,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-03 02:39:59,123 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 02:39:59,123 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 02:39:59,123 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_rates [2022-11-03 02:39:59,123 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_rates [2022-11-03 02:39:59,124 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-11-03 02:39:59,124 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-11-03 02:39:59,124 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-03 02:39:59,124 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-03 02:39:59,124 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_iface_type [2022-11-03 02:39:59,124 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_iface_type [2022-11-03 02:39:59,136 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_mac_control [2022-11-03 02:39:59,137 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_mac_control [2022-11-03 02:39:59,137 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-03 02:39:59,137 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-03 02:39:59,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:39:59,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:39:59,137 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_resume [2022-11-03 02:39:59,138 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_resume [2022-11-03 02:39:59,138 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_add_key [2022-11-03 02:39:59,138 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_add_key [2022-11-03 02:39:59,138 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-03 02:39:59,138 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-03 02:39:59,138 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_dev_open [2022-11-03 02:39:59,138 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_dev_open [2022-11-03 02:39:59,139 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_set_mesh_channel [2022-11-03 02:39:59,139 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_set_mesh_channel [2022-11-03 02:39:59,139 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_leave_ibss [2022-11-03 02:39:59,139 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_leave_ibss [2022-11-03 02:39:59,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 02:39:59,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 02:39:59,139 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_get_chandef_type [2022-11-03 02:39:59,140 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_get_chandef_type [2022-11-03 02:39:59,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:39:59,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:39:59,140 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_scan_worker [2022-11-03 02:39:59,140 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_scan_worker [2022-11-03 02:39:59,140 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-03 02:39:59,140 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-03 02:39:59,141 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_get_channel [2022-11-03 02:39:59,141 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_get_channel [2022-11-03 02:39:59,141 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-03 02:39:59,141 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-03 02:39:59,141 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-03 02:39:59,141 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-03 02:39:59,141 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_suspend [2022-11-03 02:39:59,142 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_suspend [2022-11-03 02:39:59,142 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-03 02:39:59,142 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-03 02:39:59,142 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 02:39:59,142 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 02:39:59,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 02:39:59,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 02:39:59,143 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_multicast_list [2022-11-03 02:39:59,143 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_multicast_list [2022-11-03 02:39:59,143 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-11-03 02:39:59,143 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-11-03 02:39:59,143 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_set_monitor_channel [2022-11-03 02:39:59,143 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_set_monitor_channel [2022-11-03 02:39:59,143 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2022-11-03 02:39:59,144 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2022-11-03 02:39:59,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 02:39:59,144 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 02:39:59,144 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_get_bss [2022-11-03 02:39:59,144 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_get_bss [2022-11-03 02:39:59,144 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 02:39:59,144 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 02:39:59,145 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_thread [2022-11-03 02:39:59,145 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_thread [2022-11-03 02:39:59,145 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_scan_done [2022-11-03 02:39:59,145 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_scan_done [2022-11-03 02:39:59,145 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 02:39:59,145 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 02:39:59,146 INFO L130 BoogieDeclarations]: Found specification of procedure eth_broadcast_addr [2022-11-03 02:39:59,150 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_broadcast_addr [2022-11-03 02:39:59,150 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-03 02:39:59,150 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-03 02:39:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-03 02:39:59,151 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-03 02:39:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-03 02:39:59,151 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-03 02:39:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-03 02:39:59,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-03 02:39:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_4 [2022-11-03 02:39:59,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_4 [2022-11-03 02:39:59,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_3 [2022-11-03 02:39:59,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_3 [2022-11-03 02:39:59,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:39:59,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_5 [2022-11-03 02:39:59,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_5 [2022-11-03 02:39:59,153 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 02:39:59,154 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 02:39:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_deep_sleep [2022-11-03 02:39:59,154 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_deep_sleep [2022-11-03 02:39:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_change_intf [2022-11-03 02:39:59,154 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_change_intf [2022-11-03 02:39:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_deb_hex [2022-11-03 02:39:59,154 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_deb_hex [2022-11-03 02:39:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 02:39:59,155 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 02:39:59,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:39:59,155 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_2 [2022-11-03 02:39:59,155 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_2 [2022-11-03 02:39:59,155 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_setup_firmware [2022-11-03 02:39:59,155 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_setup_firmware [2022-11-03 02:39:59,155 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_del_key [2022-11-03 02:39:59,156 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_del_key [2022-11-03 02:39:59,156 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_2 [2022-11-03 02:39:59,156 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_2 [2022-11-03 02:39:59,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:39:59,156 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-03 02:39:59,156 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-03 02:39:59,156 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_config [2022-11-03 02:39:59,156 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_config [2022-11-03 02:39:59,157 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 02:39:59,157 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 02:39:59,157 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-03 02:39:59,157 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-03 02:39:59,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-11-03 02:39:59,157 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-11-03 02:39:59,157 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-03 02:39:59,170 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-03 02:39:59,171 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_monitor_mode [2022-11-03 02:39:59,171 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_monitor_mode [2022-11-03 02:39:59,171 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_join_ibss [2022-11-03 02:39:59,171 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_join_ibss [2022-11-03 02:39:59,171 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count___1 [2022-11-03 02:39:59,171 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count___1 [2022-11-03 02:39:59,171 INFO L130 BoogieDeclarations]: Found specification of procedure simple_read_from_buffer [2022-11-03 02:39:59,172 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_read_from_buffer [2022-11-03 02:39:59,172 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-03 02:39:59,172 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-03 02:39:59,172 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2022-11-03 02:39:59,172 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2022-11-03 02:39:59,172 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_bss_get_ie [2022-11-03 02:39:59,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_bss_get_ie [2022-11-03 02:39:59,173 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-03 02:39:59,173 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-03 02:39:59,173 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_cmd [2022-11-03 02:39:59,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_cmd [2022-11-03 02:39:59,173 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_command_queue_empty [2022-11-03 02:39:59,173 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_command_queue_empty [2022-11-03 02:39:59,173 INFO L130 BoogieDeclarations]: Found specification of procedure get_zeroed_page [2022-11-03 02:39:59,173 INFO L138 BoogieDeclarations]: Found implementation of procedure get_zeroed_page [2022-11-03 02:39:59,174 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_set_default_key [2022-11-03 02:39:59,174 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_set_default_key [2022-11-03 02:39:59,174 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_enable_rsn [2022-11-03 02:39:59,174 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_enable_rsn [2022-11-03 02:39:59,174 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_process_event [2022-11-03 02:39:59,174 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_process_event [2022-11-03 02:39:59,174 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 02:39:59,175 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 02:39:59,175 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-11-03 02:39:59,175 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-11-03 02:39:59,175 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_send_mic_failureevent [2022-11-03 02:39:59,175 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_send_mic_failureevent [2022-11-03 02:39:59,175 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_3 [2022-11-03 02:39:59,175 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_3 [2022-11-03 02:39:59,176 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 02:39:59,176 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 02:39:59,176 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_join_post [2022-11-03 02:39:59,176 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_join_post [2022-11-03 02:39:59,176 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 02:39:59,176 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 02:39:59,176 INFO L130 BoogieDeclarations]: Found specification of procedure ether_setup [2022-11-03 02:39:59,176 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2022-11-03 02:39:59,177 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2022-11-03 02:39:59,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:39:59,177 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_stop_iface [2022-11-03 02:39:59,177 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_stop_iface [2022-11-03 02:39:59,177 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-03 02:39:59,177 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-03 02:39:59,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:39:59,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:39:59,178 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_radio [2022-11-03 02:39:59,178 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_radio [2022-11-03 02:39:59,178 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_debugfs_write [2022-11-03 02:39:59,178 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_debugfs_write [2022-11-03 02:39:59,178 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_mcast_addrs [2022-11-03 02:39:59,178 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_mcast_addrs [2022-11-03 02:39:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_start_iface [2022-11-03 02:39:59,179 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_start_iface [2022-11-03 02:39:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-03 02:39:59,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-03 02:39:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_mac_address [2022-11-03 02:39:59,179 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_mac_address [2022-11-03 02:39:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-03 02:39:59,180 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-03 02:39:59,180 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-03 02:39:59,180 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-03 02:39:59,180 INFO L130 BoogieDeclarations]: Found specification of procedure mesh_get_default_parameters [2022-11-03 02:39:59,180 INFO L138 BoogieDeclarations]: Found implementation of procedure mesh_get_default_parameters [2022-11-03 02:39:59,180 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_deb_hex___3 [2022-11-03 02:39:59,180 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_deb_hex___3 [2022-11-03 02:39:59,181 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_deb_hex___0 [2022-11-03 02:39:59,181 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_deb_hex___0 [2022-11-03 02:39:59,181 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-03 02:39:59,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-03 02:39:59,181 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_ssid_tlv [2022-11-03 02:39:59,181 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_ssid_tlv [2022-11-03 02:39:59,181 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_2 [2022-11-03 02:39:59,182 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_2 [2022-11-03 02:39:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_17 [2022-11-03 02:39:59,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_17 [2022-11-03 02:39:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_hard_start_xmit [2022-11-03 02:39:59,182 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_hard_start_xmit [2022-11-03 02:39:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_mesh_config_send [2022-11-03 02:39:59,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_mesh_config_send [2022-11-03 02:39:59,183 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_config_send [2022-11-03 02:39:59,183 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_config_send [2022-11-03 02:39:59,183 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_disconnected [2022-11-03 02:39:59,184 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_disconnected [2022-11-03 02:39:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-03 02:39:59,184 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-03 02:39:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_cleanup_and_insert_cmd [2022-11-03 02:39:59,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_cleanup_and_insert_cmd [2022-11-03 02:39:59,185 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-11-03 02:39:59,185 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-11-03 02:39:59,185 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_host_sleep [2022-11-03 02:39:59,185 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_host_sleep [2022-11-03 02:39:59,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:39:59,185 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_get_station [2022-11-03 02:39:59,185 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_get_station [2022-11-03 02:39:59,186 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-03 02:39:59,186 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-03 02:39:59,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_lbs_private [2022-11-03 02:39:59,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_lbs_private [2022-11-03 02:39:59,186 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-03 02:39:59,186 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-03 02:40:01,081 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:40:01,086 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:40:01,525 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:48:29,188 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:48:36,763 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:48:36,763 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 02:48:36,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:48:36 BoogieIcfgContainer [2022-11-03 02:48:36,775 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:48:36,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:48:36,778 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:48:36,791 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:48:36,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:39:47" (1/3) ... [2022-11-03 02:48:36,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e76fb53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:48:36, skipping insertion in model container [2022-11-03 02:48:36,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:57" (2/3) ... [2022-11-03 02:48:36,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e76fb53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:48:36, skipping insertion in model container [2022-11-03 02:48:36,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:48:36" (3/3) ... [2022-11-03 02:48:36,795 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--libertas--libertas.ko-entry_point.cil.out.i [2022-11-03 02:48:36,818 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:48:36,819 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:48:36,970 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:48:36,977 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;@2181ac45, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:48:36,977 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:48:36,993 INFO L276 IsEmpty]: Start isEmpty. Operand has 4064 states, 2677 states have (on average 1.3728053791557713) internal successors, (3675), 2781 states have internal predecessors, (3675), 1200 states have call successors, (1200), 186 states have call predecessors, (1200), 185 states have return successors, (1179), 1158 states have call predecessors, (1179), 1179 states have call successors, (1179) [2022-11-03 02:48:37,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-03 02:48:37,013 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:37,014 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:48:37,015 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:48:37,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:37,021 INFO L85 PathProgramCache]: Analyzing trace with hash 919102641, now seen corresponding path program 1 times [2022-11-03 02:48:37,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:48:37,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669447640] [2022-11-03 02:48:37,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:37,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:48:38,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:48:40,232 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-03 02:48:40,233 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:48:40,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669447640] [2022-11-03 02:48:40,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669447640] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:48:40,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:48:40,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:48:40,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999384775] [2022-11-03 02:48:40,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:48:40,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:48:40,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:48:40,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:48:40,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:48:40,291 INFO L87 Difference]: Start difference. First operand has 4064 states, 2677 states have (on average 1.3728053791557713) internal successors, (3675), 2781 states have internal predecessors, (3675), 1200 states have call successors, (1200), 186 states have call predecessors, (1200), 185 states have return successors, (1179), 1158 states have call predecessors, (1179), 1179 states have call successors, (1179) Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 02:48:42,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:44,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:48,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:50,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:56,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:56,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:56,730 INFO L93 Difference]: Finished difference Result 12018 states and 17970 transitions. [2022-11-03 02:48:56,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:48:56,733 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), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 57 [2022-11-03 02:48:56,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:56,815 INFO L225 Difference]: With dead ends: 12018 [2022-11-03 02:48:56,816 INFO L226 Difference]: Without dead ends: 7903 [2022-11-03 02:48:56,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:48:56,862 INFO L413 NwaCegarLoop]: 6417 mSDtfsCounter, 5807 mSDsluCounter, 6012 mSDsCounter, 0 mSdLazyCounter, 1513 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5816 SdHoareTripleChecker+Valid, 11683 SdHoareTripleChecker+Invalid, 1519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1513 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:56,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5816 Valid, 11683 Invalid, 1519 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1513 Invalid, 3 Unknown, 0 Unchecked, 15.6s Time] [2022-11-03 02:48:56,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7903 states. [2022-11-03 02:48:57,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7903 to 7898. [2022-11-03 02:48:57,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7898 states, 5235 states have (on average 1.3642788920725883) internal successors, (7142), 5393 states have internal predecessors, (7142), 2296 states have call successors, (2296), 367 states have call predecessors, (2296), 366 states have return successors, (2299), 2247 states have call predecessors, (2299), 2290 states have call successors, (2299) [2022-11-03 02:48:58,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7898 states to 7898 states and 11737 transitions. [2022-11-03 02:48:58,068 INFO L78 Accepts]: Start accepts. Automaton has 7898 states and 11737 transitions. Word has length 57 [2022-11-03 02:48:58,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:58,069 INFO L495 AbstractCegarLoop]: Abstraction has 7898 states and 11737 transitions. [2022-11-03 02:48:58,070 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), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 02:48:58,070 INFO L276 IsEmpty]: Start isEmpty. Operand 7898 states and 11737 transitions. [2022-11-03 02:48:58,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-03 02:48:58,084 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:58,085 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:48:58,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:48:58,086 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:48:58,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:58,087 INFO L85 PathProgramCache]: Analyzing trace with hash 589187563, now seen corresponding path program 1 times [2022-11-03 02:48:58,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:48:58,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239435438] [2022-11-03 02:48:58,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:58,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:48:58,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:49:00,128 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-03 02:49:00,129 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:49:00,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239435438] [2022-11-03 02:49:00,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239435438] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:49:00,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:49:00,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:49:00,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693004387] [2022-11-03 02:49:00,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:49:00,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:49:00,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:49:00,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:49:00,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:49:00,134 INFO L87 Difference]: Start difference. First operand 7898 states and 11737 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 02:49:02,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:06,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:08,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:09,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:49:09,699 INFO L93 Difference]: Finished difference Result 7931 states and 11767 transitions. [2022-11-03 02:49:09,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:49:09,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 61 [2022-11-03 02:49:09,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:49:09,766 INFO L225 Difference]: With dead ends: 7931 [2022-11-03 02:49:09,766 INFO L226 Difference]: Without dead ends: 7928 [2022-11-03 02:49:09,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:49:09,776 INFO L413 NwaCegarLoop]: 5240 mSDtfsCounter, 5932 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5934 SdHoareTripleChecker+Valid, 5277 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:49:09,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5934 Valid, 5277 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 769 Invalid, 2 Unknown, 0 Unchecked, 9.1s Time] [2022-11-03 02:49:09,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7928 states. [2022-11-03 02:49:10,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7928 to 7928. [2022-11-03 02:49:10,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7928 states, 5251 states have (on average 1.3631689202056751) internal successors, (7158), 5410 states have internal predecessors, (7158), 2300 states have call successors, (2300), 376 states have call predecessors, (2300), 376 states have return successors, (2306), 2252 states have call predecessors, (2306), 2295 states have call successors, (2306) [2022-11-03 02:49:10,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7928 states to 7928 states and 11764 transitions. [2022-11-03 02:49:10,678 INFO L78 Accepts]: Start accepts. Automaton has 7928 states and 11764 transitions. Word has length 61 [2022-11-03 02:49:10,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:49:10,679 INFO L495 AbstractCegarLoop]: Abstraction has 7928 states and 11764 transitions. [2022-11-03 02:49:10,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 02:49:10,680 INFO L276 IsEmpty]: Start isEmpty. Operand 7928 states and 11764 transitions. [2022-11-03 02:49:10,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-03 02:49:10,683 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:49:10,683 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:49:10,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:49:10,684 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:49:10,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:49:10,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1082946652, now seen corresponding path program 1 times [2022-11-03 02:49:10,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:49:10,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25112400] [2022-11-03 02:49:10,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:49:10,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:49:11,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:49:12,248 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-03 02:49:12,248 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:49:12,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25112400] [2022-11-03 02:49:12,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25112400] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:49:12,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:49:12,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:49:12,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258725852] [2022-11-03 02:49:12,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:49:12,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:49:12,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:49:12,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:49:12,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:49:12,251 INFO L87 Difference]: Start difference. First operand 7928 states and 11764 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 02:49:14,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:18,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:20,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:22,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:49:22,192 INFO L93 Difference]: Finished difference Result 7996 states and 11850 transitions. [2022-11-03 02:49:22,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:49:22,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 62 [2022-11-03 02:49:22,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:49:22,256 INFO L225 Difference]: With dead ends: 7996 [2022-11-03 02:49:22,256 INFO L226 Difference]: Without dead ends: 7993 [2022-11-03 02:49:22,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:49:22,265 INFO L413 NwaCegarLoop]: 5252 mSDtfsCounter, 5849 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5858 SdHoareTripleChecker+Valid, 5410 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:49:22,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5858 Valid, 5410 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 794 Invalid, 3 Unknown, 0 Unchecked, 9.6s Time] [2022-11-03 02:49:22,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7993 states. [2022-11-03 02:49:22,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7993 to 7993. [2022-11-03 02:49:23,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7993 states, 5290 states have (on average 1.3618147448015123) internal successors, (7204), 5450 states have internal predecessors, (7204), 2314 states have call successors, (2314), 387 states have call predecessors, (2314), 388 states have return successors, (2329), 2267 states have call predecessors, (2329), 2310 states have call successors, (2329) [2022-11-03 02:49:23,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7993 states to 7993 states and 11847 transitions. [2022-11-03 02:49:23,058 INFO L78 Accepts]: Start accepts. Automaton has 7993 states and 11847 transitions. Word has length 62 [2022-11-03 02:49:23,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:49:23,059 INFO L495 AbstractCegarLoop]: Abstraction has 7993 states and 11847 transitions. [2022-11-03 02:49:23,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 02:49:23,059 INFO L276 IsEmpty]: Start isEmpty. Operand 7993 states and 11847 transitions. [2022-11-03 02:49:23,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 02:49:23,064 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:49:23,064 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:49:23,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:49:23,065 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:49:23,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:49:23,066 INFO L85 PathProgramCache]: Analyzing trace with hash -790385906, now seen corresponding path program 1 times [2022-11-03 02:49:23,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:49:23,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364597949] [2022-11-03 02:49:23,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:49:23,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:49:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:49:24,687 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-03 02:49:24,688 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:49:24,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364597949] [2022-11-03 02:49:24,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364597949] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:49:24,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:49:24,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:49:24,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257337226] [2022-11-03 02:49:24,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:49:24,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:49:24,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:49:24,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:49:24,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:49:24,691 INFO L87 Difference]: Start difference. First operand 7993 states and 11847 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 02:49:27,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:30,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:33,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:37,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:49:37,753 INFO L93 Difference]: Finished difference Result 15387 states and 22923 transitions. [2022-11-03 02:49:37,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:49:37,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 63 [2022-11-03 02:49:37,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:49:37,862 INFO L225 Difference]: With dead ends: 15387 [2022-11-03 02:49:37,863 INFO L226 Difference]: Without dead ends: 15383 [2022-11-03 02:49:37,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:49:37,877 INFO L413 NwaCegarLoop]: 6358 mSDtfsCounter, 5566 mSDsluCounter, 5969 mSDsCounter, 0 mSdLazyCounter, 1504 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5567 SdHoareTripleChecker+Valid, 11585 SdHoareTripleChecker+Invalid, 1511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1504 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:49:37,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5567 Valid, 11585 Invalid, 1511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1504 Invalid, 3 Unknown, 0 Unchecked, 12.3s Time] [2022-11-03 02:49:37,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15383 states. [2022-11-03 02:49:39,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15383 to 15380. [2022-11-03 02:49:39,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15380 states, 10190 states have (on average 1.362315996074583) internal successors, (13882), 10496 states have internal predecessors, (13882), 4448 states have call successors, (4448), 742 states have call predecessors, (4448), 741 states have return successors, (4585), 4357 states have call predecessors, (4585), 4444 states have call successors, (4585) [2022-11-03 02:49:39,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15380 states to 15380 states and 22915 transitions. [2022-11-03 02:49:39,125 INFO L78 Accepts]: Start accepts. Automaton has 15380 states and 22915 transitions. Word has length 63 [2022-11-03 02:49:39,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:49:39,128 INFO L495 AbstractCegarLoop]: Abstraction has 15380 states and 22915 transitions. [2022-11-03 02:49:39,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 02:49:39,128 INFO L276 IsEmpty]: Start isEmpty. Operand 15380 states and 22915 transitions. [2022-11-03 02:49:39,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-03 02:49:39,132 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:49:39,133 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:49:39,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:49:39,133 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:49:39,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:49:39,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1265851807, now seen corresponding path program 1 times [2022-11-03 02:49:39,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:49:39,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119753603] [2022-11-03 02:49:39,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:49:39,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:49:39,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:49:40,648 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-03 02:49:40,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:49:40,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119753603] [2022-11-03 02:49:40,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119753603] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:49:40,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:49:40,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:49:40,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932840186] [2022-11-03 02:49:40,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:49:40,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:49:40,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:49:40,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:49:40,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:49:40,653 INFO L87 Difference]: Start difference. First operand 15380 states and 22915 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 02:49:42,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:46,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:48,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:50,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:49:50,472 INFO L93 Difference]: Finished difference Result 15382 states and 22916 transitions. [2022-11-03 02:49:50,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:49:50,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 64 [2022-11-03 02:49:50,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:49:50,562 INFO L225 Difference]: With dead ends: 15382 [2022-11-03 02:49:50,563 INFO L226 Difference]: Without dead ends: 15364 [2022-11-03 02:49:50,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:49:50,581 INFO L413 NwaCegarLoop]: 5251 mSDtfsCounter, 5845 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5854 SdHoareTripleChecker+Valid, 5409 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:49:50,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5854 Valid, 5409 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 794 Invalid, 2 Unknown, 0 Unchecked, 9.1s Time] [2022-11-03 02:49:50,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15364 states. [2022-11-03 02:49:51,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15364 to 15364. [2022-11-03 02:49:51,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15364 states, 10178 states have (on average 1.3622519158970328) internal successors, (13865), 10483 states have internal predecessors, (13865), 4444 states have call successors, (4444), 742 states have call predecessors, (4444), 741 states have return successors, (4582), 4354 states have call predecessors, (4582), 4441 states have call successors, (4582) [2022-11-03 02:49:51,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15364 states to 15364 states and 22891 transitions. [2022-11-03 02:49:51,912 INFO L78 Accepts]: Start accepts. Automaton has 15364 states and 22891 transitions. Word has length 64 [2022-11-03 02:49:51,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:49:51,913 INFO L495 AbstractCegarLoop]: Abstraction has 15364 states and 22891 transitions. [2022-11-03 02:49:51,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 02:49:51,914 INFO L276 IsEmpty]: Start isEmpty. Operand 15364 states and 22891 transitions. [2022-11-03 02:49:51,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-11-03 02:49:51,938 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:49:51,938 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:49:51,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:49:51,939 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:49:51,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:49:51,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1396811415, now seen corresponding path program 1 times [2022-11-03 02:49:51,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:49:51,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670187022] [2022-11-03 02:49:51,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:49:51,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:49:52,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:49:53,480 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-11-03 02:49:53,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:49:53,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670187022] [2022-11-03 02:49:53,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670187022] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:49:53,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:49:53,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:49:53,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839759499] [2022-11-03 02:49:53,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:49:53,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:49:53,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:49:53,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:49:53,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:49:53,484 INFO L87 Difference]: Start difference. First operand 15364 states and 22891 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-03 02:49:55,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:59,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:50:03,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:50:07,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:50:07,362 INFO L93 Difference]: Finished difference Result 45671 states and 68552 transitions. [2022-11-03 02:50:07,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:50:07,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 150 [2022-11-03 02:50:07,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:50:07,582 INFO L225 Difference]: With dead ends: 45671 [2022-11-03 02:50:07,582 INFO L226 Difference]: Without dead ends: 30314 [2022-11-03 02:50:07,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:50:07,693 INFO L413 NwaCegarLoop]: 6474 mSDtfsCounter, 5837 mSDsluCounter, 5934 mSDsCounter, 0 mSdLazyCounter, 1552 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5837 SdHoareTripleChecker+Valid, 11671 SdHoareTripleChecker+Invalid, 1565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1552 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:50:07,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5837 Valid, 11671 Invalid, 1565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1552 Invalid, 3 Unknown, 0 Unchecked, 12.4s Time] [2022-11-03 02:50:07,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30314 states. [2022-11-03 02:50:10,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30314 to 30182. [2022-11-03 02:50:10,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30182 states, 20010 states have (on average 1.3625687156421789) internal successors, (27265), 20628 states have internal predecessors, (27265), 8736 states have call successors, (8736), 1436 states have call predecessors, (8736), 1435 states have return successors, (9523), 8546 states have call predecessors, (9523), 8733 states have call successors, (9523) [2022-11-03 02:50:10,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30182 states to 30182 states and 45524 transitions. [2022-11-03 02:50:10,351 INFO L78 Accepts]: Start accepts. Automaton has 30182 states and 45524 transitions. Word has length 150 [2022-11-03 02:50:10,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:50:10,352 INFO L495 AbstractCegarLoop]: Abstraction has 30182 states and 45524 transitions. [2022-11-03 02:50:10,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-03 02:50:10,352 INFO L276 IsEmpty]: Start isEmpty. Operand 30182 states and 45524 transitions. [2022-11-03 02:50:10,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-11-03 02:50:10,373 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:50:10,374 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:50:10,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:50:10,375 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:50:10,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:50:10,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1940847880, now seen corresponding path program 1 times [2022-11-03 02:50:10,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:50:10,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930730106] [2022-11-03 02:50:10,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:50:10,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:50:10,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:50:12,370 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-11-03 02:50:12,370 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:50:12,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930730106] [2022-11-03 02:50:12,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930730106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:50:12,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:50:12,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:50:12,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077056402] [2022-11-03 02:50:12,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:50:12,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:50:12,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:50:12,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:50:12,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:50:12,373 INFO L87 Difference]: Start difference. First operand 30182 states and 45524 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-03 02:50:14,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:50:17,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:50:21,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:50:24,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:50:24,004 INFO L93 Difference]: Finished difference Result 59710 states and 89958 transitions. [2022-11-03 02:50:24,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:50:24,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 179 [2022-11-03 02:50:24,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:50:24,196 INFO L225 Difference]: With dead ends: 59710 [2022-11-03 02:50:24,196 INFO L226 Difference]: Without dead ends: 29535 [2022-11-03 02:50:24,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:50:24,349 INFO L413 NwaCegarLoop]: 5194 mSDtfsCounter, 5785 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5794 SdHoareTripleChecker+Valid, 5364 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:50:24,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5794 Valid, 5364 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 800 Invalid, 3 Unknown, 0 Unchecked, 9.9s Time] [2022-11-03 02:50:24,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29535 states. [2022-11-03 02:50:27,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29535 to 29523. [2022-11-03 02:50:27,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29523 states, 19547 states have (on average 1.3607714738834604) internal successors, (26599), 20165 states have internal predecessors, (26599), 8547 states have call successors, (8547), 1429 states have call predecessors, (8547), 1428 states have return successors, (9278), 8357 states have call predecessors, (9278), 8544 states have call successors, (9278) [2022-11-03 02:50:27,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29523 states to 29523 states and 44424 transitions. [2022-11-03 02:50:27,664 INFO L78 Accepts]: Start accepts. Automaton has 29523 states and 44424 transitions. Word has length 179 [2022-11-03 02:50:27,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:50:27,665 INFO L495 AbstractCegarLoop]: Abstraction has 29523 states and 44424 transitions. [2022-11-03 02:50:27,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-03 02:50:27,666 INFO L276 IsEmpty]: Start isEmpty. Operand 29523 states and 44424 transitions. [2022-11-03 02:50:27,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-11-03 02:50:27,707 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:50:27,707 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:50:27,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:50:27,708 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:50:27,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:50:27,709 INFO L85 PathProgramCache]: Analyzing trace with hash -178202192, now seen corresponding path program 1 times [2022-11-03 02:50:27,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:50:27,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948192660] [2022-11-03 02:50:27,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:50:27,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:50:28,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:50:29,872 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-11-03 02:50:29,873 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:50:29,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948192660] [2022-11-03 02:50:29,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948192660] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:50:29,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:50:29,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:50:29,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419747838] [2022-11-03 02:50:29,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:50:29,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:50:29,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:50:29,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:50:29,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:50:29,876 INFO L87 Difference]: Start difference. First operand 29523 states and 44424 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-03 02:50:32,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:50:37,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:50:42,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:50:45,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:50:45,826 INFO L93 Difference]: Finished difference Result 87722 states and 132075 transitions. [2022-11-03 02:50:45,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:50:45,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 268 [2022-11-03 02:50:45,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:50:46,261 INFO L225 Difference]: With dead ends: 87722 [2022-11-03 02:50:46,261 INFO L226 Difference]: Without dead ends: 58223 [2022-11-03 02:50:46,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:50:46,617 INFO L413 NwaCegarLoop]: 7770 mSDtfsCounter, 5650 mSDsluCounter, 5903 mSDsCounter, 0 mSdLazyCounter, 1777 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5658 SdHoareTripleChecker+Valid, 12930 SdHoareTripleChecker+Invalid, 1781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1777 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:50:46,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5658 Valid, 12930 Invalid, 1781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1777 Invalid, 3 Unknown, 0 Unchecked, 12.9s Time] [2022-11-03 02:50:46,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58223 states. [2022-11-03 02:50:50,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58223 to 58207. [2022-11-03 02:50:50,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58207 states, 38569 states have (on average 1.3621561357566958) internal successors, (52537), 39789 states have internal predecessors, (52537), 16837 states have call successors, (16837), 2805 states have call predecessors, (16837), 2800 states have return successors, (18280), 16453 states have call predecessors, (18280), 16834 states have call successors, (18280) [2022-11-03 02:50:51,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58207 states to 58207 states and 87654 transitions. [2022-11-03 02:50:51,437 INFO L78 Accepts]: Start accepts. Automaton has 58207 states and 87654 transitions. Word has length 268 [2022-11-03 02:50:51,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:50:51,438 INFO L495 AbstractCegarLoop]: Abstraction has 58207 states and 87654 transitions. [2022-11-03 02:50:51,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-03 02:50:51,438 INFO L276 IsEmpty]: Start isEmpty. Operand 58207 states and 87654 transitions. [2022-11-03 02:50:51,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 605 [2022-11-03 02:50:51,585 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:50:51,585 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 31, 31, 31, 31, 31, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:50:51,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:50:51,586 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:50:51,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:50:51,587 INFO L85 PathProgramCache]: Analyzing trace with hash 777466890, now seen corresponding path program 1 times [2022-11-03 02:50:51,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:50:51,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289711199] [2022-11-03 02:50:51,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:50:51,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:50:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:50:54,858 INFO L134 CoverageAnalysis]: Checked inductivity of 4715 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4707 trivial. 0 not checked. [2022-11-03 02:50:54,858 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:50:54,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289711199] [2022-11-03 02:50:54,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289711199] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:50:54,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:50:54,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:50:54,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855118192] [2022-11-03 02:50:54,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:50:54,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:50:54,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:50:54,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:50:54,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:50:54,864 INFO L87 Difference]: Start difference. First operand 58207 states and 87654 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 3 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2022-11-03 02:50:57,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:51:01,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:51:03,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:51:08,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:51:10,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:51:16,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:51:16,819 INFO L93 Difference]: Finished difference Result 145196 states and 219982 transitions. [2022-11-03 02:51:16,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:51:16,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 3 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) Word has length 604 [2022-11-03 02:51:16,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:51:17,396 INFO L225 Difference]: With dead ends: 145196 [2022-11-03 02:51:17,396 INFO L226 Difference]: Without dead ends: 87013 [2022-11-03 02:51:17,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:51:17,834 INFO L413 NwaCegarLoop]: 10065 mSDtfsCounter, 5679 mSDsluCounter, 5847 mSDsCounter, 0 mSdLazyCounter, 2247 mSolverCounterSat, 22 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5679 SdHoareTripleChecker+Valid, 15183 SdHoareTripleChecker+Invalid, 2273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2247 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:51:17,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5679 Valid, 15183 Invalid, 2273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2247 Invalid, 4 Unknown, 0 Unchecked, 17.4s Time] [2022-11-03 02:51:17,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87013 states. [2022-11-03 02:51:24,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87013 to 86741. [2022-11-03 02:51:24,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86741 states, 57567 states have (on average 1.3624819775218442) internal successors, (78434), 59407 states have internal predecessors, (78434), 25029 states have call successors, (25029), 4152 states have call predecessors, (25029), 4144 states have return successors, (28476), 24442 states have call predecessors, (28476), 25026 states have call successors, (28476) [2022-11-03 02:51:25,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86741 states to 86741 states and 131939 transitions. [2022-11-03 02:51:25,163 INFO L78 Accepts]: Start accepts. Automaton has 86741 states and 131939 transitions. Word has length 604 [2022-11-03 02:51:25,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:51:25,165 INFO L495 AbstractCegarLoop]: Abstraction has 86741 states and 131939 transitions. [2022-11-03 02:51:25,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 3 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2022-11-03 02:51:25,165 INFO L276 IsEmpty]: Start isEmpty. Operand 86741 states and 131939 transitions. [2022-11-03 02:51:25,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 618 [2022-11-03 02:51:25,334 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:51:25,335 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 31, 31, 31, 31, 31, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:51:25,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 02:51:25,335 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:51:25,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:51:25,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1716971009, now seen corresponding path program 1 times [2022-11-03 02:51:25,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:51:25,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345915537] [2022-11-03 02:51:25,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:51:25,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:51:26,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:51:27,577 INFO L134 CoverageAnalysis]: Checked inductivity of 4733 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4733 trivial. 0 not checked. [2022-11-03 02:51:27,577 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:51:27,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345915537] [2022-11-03 02:51:27,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345915537] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:51:27,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:51:27,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:51:27,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241879499] [2022-11-03 02:51:27,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:51:27,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:51:27,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:51:27,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:51:27,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:51:27,582 INFO L87 Difference]: Start difference. First operand 86741 states and 131939 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 2 states have call successors, (70), 2 states have call predecessors, (70), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2022-11-03 02:51:30,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []