./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rndis_wlan.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19fca3e-047c-44cf-b230-b0d53559aa84/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19fca3e-047c-44cf-b230-b0d53559aa84/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19fca3e-047c-44cf-b230-b0d53559aa84/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19fca3e-047c-44cf-b230-b0d53559aa84/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rndis_wlan.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19fca3e-047c-44cf-b230-b0d53559aa84/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19fca3e-047c-44cf-b230-b0d53559aa84/bin/utaipan-eEHZpOm5b7 --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 ed68d02e3340e974ceb85a32805324d7a9365cc739c1b33e4c9dbafc7a73800a --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:08:21,179 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:08:21,182 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:08:21,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:08:21,235 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:08:21,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:08:21,242 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:08:21,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:08:21,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:08:21,254 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:08:21,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:08:21,257 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:08:21,258 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:08:21,260 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:08:21,263 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:08:21,267 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:08:21,269 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:08:21,270 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:08:21,273 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:08:21,281 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:08:21,282 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:08:21,284 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:08:21,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:08:21,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:08:21,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:08:21,298 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:08:21,298 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:08:21,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:08:21,301 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:08:21,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:08:21,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:08:21,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:08:21,306 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:08:21,307 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:08:21,308 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:08:21,309 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:08:21,310 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:08:21,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:08:21,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:08:21,311 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:08:21,312 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:08:21,313 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19fca3e-047c-44cf-b230-b0d53559aa84/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 20:08:21,356 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:08:21,357 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:08:21,357 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:08:21,358 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:08:21,358 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:08:21,359 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:08:21,359 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:08:21,359 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:08:21,359 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:08:21,360 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:08:21,361 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:08:21,361 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:08:21,361 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:08:21,361 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:08:21,362 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:08:21,362 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:08:21,362 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:08:21,362 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:08:21,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:08:21,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:08:21,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:08:21,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:08:21,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:08:21,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:08:21,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:08:21,364 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:08:21,366 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:08:21,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:08:21,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:08:21,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:08:21,367 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:08:21,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:08:21,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:08:21,368 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:08:21,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:08:21,368 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:08:21,369 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:08:21,369 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:08:21,369 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19fca3e-047c-44cf-b230-b0d53559aa84/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19fca3e-047c-44cf-b230-b0d53559aa84/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed68d02e3340e974ceb85a32805324d7a9365cc739c1b33e4c9dbafc7a73800a [2021-11-25 20:08:21,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:08:21,673 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:08:21,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:08:21,677 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:08:21,678 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:08:21,679 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19fca3e-047c-44cf-b230-b0d53559aa84/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2021-11-25 20:08:21,754 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19fca3e-047c-44cf-b230-b0d53559aa84/bin/utaipan-eEHZpOm5b7/data/b1d892fc1/ee0847db853f4d479f37d2d500d935d9/FLAGfab961a45 [2021-11-25 20:08:22,759 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:08:22,760 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19fca3e-047c-44cf-b230-b0d53559aa84/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2021-11-25 20:08:22,844 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19fca3e-047c-44cf-b230-b0d53559aa84/bin/utaipan-eEHZpOm5b7/data/b1d892fc1/ee0847db853f4d479f37d2d500d935d9/FLAGfab961a45 [2021-11-25 20:08:23,087 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19fca3e-047c-44cf-b230-b0d53559aa84/bin/utaipan-eEHZpOm5b7/data/b1d892fc1/ee0847db853f4d479f37d2d500d935d9 [2021-11-25 20:08:23,090 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:08:23,091 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:08:23,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:08:23,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:08:23,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:08:23,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:08:23" (1/1) ... [2021-11-25 20:08:23,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27928aa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:08:23, skipping insertion in model container [2021-11-25 20:08:23,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:08:23" (1/1) ... [2021-11-25 20:08:23,116 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:08:23,295 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:08:27,632 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_f19fca3e-047c-44cf-b230-b0d53559aa84/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rndis_wlan.cil.i[491185,491198] [2021-11-25 20:08:27,636 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_f19fca3e-047c-44cf-b230-b0d53559aa84/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rndis_wlan.cil.i[491330,491343] [2021-11-25 20:08:27,663 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:08:27,729 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:08:28,286 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_f19fca3e-047c-44cf-b230-b0d53559aa84/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rndis_wlan.cil.i[491185,491198] [2021-11-25 20:08:28,287 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_f19fca3e-047c-44cf-b230-b0d53559aa84/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rndis_wlan.cil.i[491330,491343] [2021-11-25 20:08:28,291 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:08:28,518 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:08:28,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:08:28 WrapperNode [2021-11-25 20:08:28,519 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:08:28,520 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:08:28,520 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:08:28,520 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:08:28,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:08:28" (1/1) ... [2021-11-25 20:08:28,732 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:08:28" (1/1) ... [2021-11-25 20:08:29,117 INFO L137 Inliner]: procedures = 473, calls = 4713, calls flagged for inlining = 228, calls inlined = 198, statements flattened = 9013 [2021-11-25 20:08:29,132 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:08:29,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:08:29,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:08:29,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:08:29,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:08:28" (1/1) ... [2021-11-25 20:08:29,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:08:28" (1/1) ... [2021-11-25 20:08:29,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:08:28" (1/1) ... [2021-11-25 20:08:29,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:08:28" (1/1) ... [2021-11-25 20:08:29,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:08:28" (1/1) ... [2021-11-25 20:08:29,571 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:08:28" (1/1) ... [2021-11-25 20:08:29,619 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:08:28" (1/1) ... [2021-11-25 20:08:29,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:08:29,752 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:08:29,752 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:08:29,752 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:08:29,753 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:08:28" (1/1) ... [2021-11-25 20:08:29,779 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:08:29,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19fca3e-047c-44cf-b230-b0d53559aa84/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:08:29,834 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19fca3e-047c-44cf-b230-b0d53559aa84/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:08:29,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19fca3e-047c-44cf-b230-b0d53559aa84/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:08:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_reset [2021-11-25 20:08:30,003 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_reset [2021-11-25 20:08:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2021-11-25 20:08:30,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2021-11-25 20:08:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_stop [2021-11-25 20:08:30,004 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_stop [2021-11-25 20:08:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_config_parameter_str [2021-11-25 20:08:30,004 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_config_parameter_str [2021-11-25 20:08:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 20:08:30,005 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 20:08:30,005 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_inform_bss [2021-11-25 20:08:30,005 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_inform_bss [2021-11-25 20:08:30,005 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_pause_rx [2021-11-25 20:08:30,005 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_pause_rx [2021-11-25 20:08:30,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 20:08:30,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 20:08:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_tx_fixup [2021-11-25 20:08:30,006 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_tx_fixup [2021-11-25 20:08:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_bind [2021-11-25 20:08:30,006 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_bind [2021-11-25 20:08:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_set_multicast_list [2021-11-25 20:08:30,006 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_set_multicast_list [2021-11-25 20:08:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_purge_paused_rxq [2021-11-25 20:08:30,007 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_purge_paused_rxq [2021-11-25 20:08:30,007 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_unbind [2021-11-25 20:08:30,007 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_unbind [2021-11-25 20:08:30,007 INFO L130 BoogieDeclarations]: Found specification of procedure set_encr_mode [2021-11-25 20:08:30,007 INFO L138 BoogieDeclarations]: Found implementation of procedure set_encr_mode [2021-11-25 20:08:30,007 INFO L130 BoogieDeclarations]: Found specification of procedure get_rndis_wlan_priv [2021-11-25 20:08:30,007 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rndis_wlan_priv [2021-11-25 20:08:30,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 20:08:30,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 20:08:30,008 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2021-11-25 20:08:30,008 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2021-11-25 20:08:30,008 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-25 20:08:30,008 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-25 20:08:30,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 20:08:30,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 20:08:30,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:08:30,009 INFO L130 BoogieDeclarations]: Found specification of procedure set_infra_mode [2021-11-25 20:08:30,009 INFO L138 BoogieDeclarations]: Found implementation of procedure set_infra_mode [2021-11-25 20:08:30,009 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_command [2021-11-25 20:08:30,009 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_command [2021-11-25 20:08:30,010 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_scan_done [2021-11-25 20:08:30,010 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_scan_done [2021-11-25 20:08:30,010 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-25 20:08:30,010 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-25 20:08:30,011 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-25 20:08:30,012 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-25 20:08:30,012 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_fill_station_info [2021-11-25 20:08:30,012 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_fill_station_info [2021-11-25 20:08:30,012 INFO L130 BoogieDeclarations]: Found specification of procedure unknown_early_init [2021-11-25 20:08:30,012 INFO L138 BoogieDeclarations]: Found implementation of procedure unknown_early_init [2021-11-25 20:08:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure disassociate [2021-11-25 20:08:30,013 INFO L138 BoogieDeclarations]: Found implementation of procedure disassociate [2021-11-25 20:08:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2021-11-25 20:08:30,013 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2021-11-25 20:08:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 20:08:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_query_oid [2021-11-25 20:08:30,014 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_query_oid [2021-11-25 20:08:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2021-11-25 20:08:30,014 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2021-11-25 20:08:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 20:08:30,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 20:08:30,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 20:08:30,015 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2021-11-25 20:08:30,015 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2021-11-25 20:08:30,015 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_free [2021-11-25 20:08:30,015 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_free [2021-11-25 20:08:30,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:08:30,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-25 20:08:30,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-25 20:08:30,016 INFO L130 BoogieDeclarations]: Found specification of procedure is_wpa_key [2021-11-25 20:08:30,017 INFO L138 BoogieDeclarations]: Found implementation of procedure is_wpa_key [2021-11-25 20:08:30,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 20:08:30,017 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 20:08:30,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 20:08:30,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 20:08:30,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-25 20:08:30,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-25 20:08:30,017 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_priv [2021-11-25 20:08:30,018 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_priv [2021-11-25 20:08:30,018 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_check_bssid_list [2021-11-25 20:08:30,019 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_check_bssid_list [2021-11-25 20:08:30,019 INFO L130 BoogieDeclarations]: Found specification of procedure __toupper [2021-11-25 20:08:30,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __toupper [2021-11-25 20:08:30,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:08:30,020 INFO L130 BoogieDeclarations]: Found specification of procedure bcm4320b_early_init [2021-11-25 20:08:30,020 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm4320b_early_init [2021-11-25 20:08:30,020 INFO L130 BoogieDeclarations]: Found specification of procedure set_channel [2021-11-25 20:08:30,020 INFO L138 BoogieDeclarations]: Found implementation of procedure set_channel [2021-11-25 20:08:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-25 20:08:30,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-25 20:08:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_status [2021-11-25 20:08:30,022 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_status [2021-11-25 20:08:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-25 20:08:30,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-25 20:08:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:08:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure level_to_qual [2021-11-25 20:08:30,022 INFO L138 BoogieDeclarations]: Found implementation of procedure level_to_qual [2021-11-25 20:08:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 20:08:30,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 20:08:30,023 INFO L130 BoogieDeclarations]: Found specification of procedure set_essid [2021-11-25 20:08:30,023 INFO L138 BoogieDeclarations]: Found implementation of procedure set_essid [2021-11-25 20:08:30,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:08:30,023 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_put_bss [2021-11-25 20:08:30,023 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_put_bss [2021-11-25 20:08:30,024 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_start_bssid_list_scan [2021-11-25 20:08:30,024 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_start_bssid_list_scan [2021-11-25 20:08:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 20:08:30,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 20:08:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_open [2021-11-25 20:08:30,028 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_open [2021-11-25 20:08:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-25 20:08:30,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-25 20:08:30,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-25 20:08:30,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-25 20:08:30,030 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_copy_module_params [2021-11-25 20:08:30,031 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_copy_module_params [2021-11-25 20:08:30,036 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-25 20:08:30,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-25 20:08:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure set_auth_mode [2021-11-25 20:08:30,037 INFO L138 BoogieDeclarations]: Found implementation of procedure set_auth_mode [2021-11-25 20:08:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-11-25 20:08:30,037 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-11-25 20:08:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-25 20:08:30,037 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-25 20:08:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:08:30,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:08:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-25 20:08:30,038 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-25 20:08:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-25 20:08:30,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-25 20:08:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 20:08:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 20:08:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 20:08:30,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 20:08:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rndis_wlan_driver_exit_11_2 [2021-11-25 20:08:30,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rndis_wlan_driver_exit_11_2 [2021-11-25 20:08:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-11-25 20:08:30,039 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-11-25 20:08:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_cipher_to_alg [2021-11-25 20:08:30,039 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_cipher_to_alg [2021-11-25 20:08:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-25 20:08:30,039 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-25 20:08:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_channel [2021-11-25 20:08:30,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_channel [2021-11-25 20:08:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-11-25 20:08:30,039 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-11-25 20:08:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure add_wep_key [2021-11-25 20:08:30,040 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wep_key [2021-11-25 20:08:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_stop [2021-11-25 20:08:30,040 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_stop [2021-11-25 20:08:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure is_broadcast_ether_addr [2021-11-25 20:08:30,040 INFO L138 BoogieDeclarations]: Found implementation of procedure is_broadcast_ether_addr [2021-11-25 20:08:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-25 20:08:30,040 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-25 20:08:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure set_bssid [2021-11-25 20:08:30,041 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bssid [2021-11-25 20:08:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 20:08:30,041 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 20:08:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-25 20:08:30,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-25 20:08:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:08:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-25 20:08:30,041 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-25 20:08:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bssid [2021-11-25 20:08:30,042 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bssid [2021-11-25 20:08:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:08:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure set_device_pmkids [2021-11-25 20:08:30,042 INFO L138 BoogieDeclarations]: Found implementation of procedure set_device_pmkids [2021-11-25 20:08:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure get_device_pmkids [2021-11-25 20:08:30,042 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device_pmkids [2021-11-25 20:08:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure netif_addr_unlock_bh [2021-11-25 20:08:30,042 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_addr_unlock_bh [2021-11-25 20:08:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2021-11-25 20:08:30,042 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2021-11-25 20:08:30,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 20:08:30,043 INFO L130 BoogieDeclarations]: Found specification of procedure next_bssid_list_item [2021-11-25 20:08:30,043 INFO L138 BoogieDeclarations]: Found implementation of procedure next_bssid_list_item [2021-11-25 20:08:30,043 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-25 20:08:30,043 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-25 20:08:30,043 INFO L130 BoogieDeclarations]: Found specification of procedure set_priv_filter [2021-11-25 20:08:30,043 INFO L138 BoogieDeclarations]: Found implementation of procedure set_priv_filter [2021-11-25 20:08:30,043 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-25 20:08:30,043 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-25 20:08:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 20:08:30,044 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 20:08:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_wiphy_params [2021-11-25 20:08:30,044 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_wiphy_params [2021-11-25 20:08:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 20:08:30,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 20:08:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-25 20:08:30,044 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-25 20:08:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_7_4 [2021-11-25 20:08:30,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_7_4 [2021-11-25 20:08:30,045 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2021-11-25 20:08:30,045 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2021-11-25 20:08:30,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-25 20:08:30,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-25 20:08:30,045 INFO L130 BoogieDeclarations]: Found specification of procedure oid_to_string [2021-11-25 20:08:30,045 INFO L138 BoogieDeclarations]: Found implementation of procedure oid_to_string [2021-11-25 20:08:30,045 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2021-11-25 20:08:30,045 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2021-11-25 20:08:30,045 INFO L130 BoogieDeclarations]: Found specification of procedure deauthenticate [2021-11-25 20:08:30,046 INFO L138 BoogieDeclarations]: Found implementation of procedure deauthenticate [2021-11-25 20:08:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 20:08:30,047 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 20:08:30,047 INFO L130 BoogieDeclarations]: Found specification of procedure bcm4320a_early_init [2021-11-25 20:08:30,047 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm4320a_early_init [2021-11-25 20:08:30,047 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_michael_mic_failure [2021-11-25 20:08:30,047 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_michael_mic_failure [2021-11-25 20:08:30,047 INFO L130 BoogieDeclarations]: Found specification of procedure set_default_iw_params [2021-11-25 20:08:30,047 INFO L138 BoogieDeclarations]: Found implementation of procedure set_default_iw_params [2021-11-25 20:08:30,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:08:30,047 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_error_status [2021-11-25 20:08:30,048 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_error_status [2021-11-25 20:08:30,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 20:08:30,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 20:08:30,048 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume_rx [2021-11-25 20:08:30,048 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume_rx [2021-11-25 20:08:30,048 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2021-11-25 20:08:30,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2021-11-25 20:08:30,048 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-25 20:08:30,048 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-25 20:08:30,048 INFO L130 BoogieDeclarations]: Found specification of procedure get_bcm4320_power_dbm [2021-11-25 20:08:30,049 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bcm4320_power_dbm [2021-11-25 20:08:30,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 20:08:30,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 20:08:30,049 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-25 20:08:30,049 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-25 20:08:30,049 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_rx_fixup [2021-11-25 20:08:30,049 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_rx_fixup [2021-11-25 20:08:30,049 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_oid [2021-11-25 20:08:30,049 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_oid [2021-11-25 20:08:30,049 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_indication [2021-11-25 20:08:30,050 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_indication [2021-11-25 20:08:30,054 INFO L130 BoogieDeclarations]: Found specification of procedure get_bssid [2021-11-25 20:08:30,054 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bssid [2021-11-25 20:08:30,054 INFO L130 BoogieDeclarations]: Found specification of procedure is_associated [2021-11-25 20:08:30,054 INFO L138 BoogieDeclarations]: Found implementation of procedure is_associated [2021-11-25 20:08:30,054 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-25 20:08:30,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:08:30,055 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-11-25 20:08:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-11-25 20:08:30,055 INFO L130 BoogieDeclarations]: Found specification of procedure debug_print_pmkids [2021-11-25 20:08:30,056 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_print_pmkids [2021-11-25 20:08:30,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 20:08:30,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 20:08:31,172 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:08:31,176 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:08:33,722 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 20:08:54,853 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-25 20:08:55,147 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:08:56,660 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:08:56,660 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-25 20:08:56,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:08:56 BoogieIcfgContainer [2021-11-25 20:08:56,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:08:56,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:08:56,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:08:56,673 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:08:56,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:08:23" (1/3) ... [2021-11-25 20:08:56,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51364c8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:08:56, skipping insertion in model container [2021-11-25 20:08:56,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:08:28" (2/3) ... [2021-11-25 20:08:56,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51364c8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:08:56, skipping insertion in model container [2021-11-25 20:08:56,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:08:56" (3/3) ... [2021-11-25 20:08:56,686 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2021-11-25 20:08:56,691 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:08:56,692 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 20:08:56,760 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:08:56,777 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:08:56,778 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 20:08:56,849 INFO L276 IsEmpty]: Start isEmpty. Operand has 2040 states, 1229 states have (on average 1.3108218063466233) internal successors, (1611), 1231 states have internal predecessors, (1611), 695 states have call successors, (695), 116 states have call predecessors, (695), 115 states have return successors, (687), 687 states have call predecessors, (687), 687 states have call successors, (687) [2021-11-25 20:08:56,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2021-11-25 20:08:56,904 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:08:56,906 INFO L514 BasicCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:08:56,906 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:08:56,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:08:56,912 INFO L85 PathProgramCache]: Analyzing trace with hash 2119721171, now seen corresponding path program 1 times [2021-11-25 20:08:56,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:08:56,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522837532] [2021-11-25 20:08:56,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:08:56,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:08:57,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:08:58,113 INFO L134 CoverageAnalysis]: Checked inductivity of 5118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5118 trivial. 0 not checked. [2021-11-25 20:08:58,114 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:08:58,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522837532] [2021-11-25 20:08:58,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522837532] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:08:58,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:08:58,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:08:58,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715244258] [2021-11-25 20:08:58,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:08:58,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:08:58,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:08:58,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:08:58,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:08:58,157 INFO L87 Difference]: Start difference. First operand has 2040 states, 1229 states have (on average 1.3108218063466233) internal successors, (1611), 1231 states have internal predecessors, (1611), 695 states have call successors, (695), 116 states have call predecessors, (695), 115 states have return successors, (687), 687 states have call predecessors, (687), 687 states have call successors, (687) Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-25 20:09:02,836 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:09:05,024 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:09:07,101 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:09:07,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:09:07,994 INFO L93 Difference]: Finished difference Result 5900 states and 8931 transitions. [2021-11-25 20:09:07,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:09:07,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 407 [2021-11-25 20:09:07,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:09:08,044 INFO L225 Difference]: With dead ends: 5900 [2021-11-25 20:09:08,044 INFO L226 Difference]: Without dead ends: 3870 [2021-11-25 20:09:08,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:09:08,069 INFO L933 BasicCegarLoop]: 3191 mSDtfsCounter, 2767 mSDsluCounter, 2930 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2774 SdHoareTripleChecker+Valid, 5708 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:09:08,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2774 Valid, 5708 Invalid, 927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 911 Invalid, 3 Unknown, 0 Unchecked, 9.4s Time] [2021-11-25 20:09:08,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3870 states. [2021-11-25 20:09:08,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3870 to 3866. [2021-11-25 20:09:08,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3866 states, 2367 states have (on average 1.3067173637515843) internal successors, (3093), 2371 states have internal predecessors, (3093), 1272 states have call successors, (1272), 226 states have call predecessors, (1272), 226 states have return successors, (1279), 1270 states have call predecessors, (1279), 1272 states have call successors, (1279) [2021-11-25 20:09:08,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3866 states to 3866 states and 5644 transitions. [2021-11-25 20:09:08,486 INFO L78 Accepts]: Start accepts. Automaton has 3866 states and 5644 transitions. Word has length 407 [2021-11-25 20:09:08,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:09:08,494 INFO L470 AbstractCegarLoop]: Abstraction has 3866 states and 5644 transitions. [2021-11-25 20:09:08,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-25 20:09:08,496 INFO L276 IsEmpty]: Start isEmpty. Operand 3866 states and 5644 transitions. [2021-11-25 20:09:08,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2021-11-25 20:09:08,521 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:09:08,521 INFO L514 BasicCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:09:08,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 20:09:08,526 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:09:08,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:09:08,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1554649114, now seen corresponding path program 1 times [2021-11-25 20:09:08,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:09:08,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754299755] [2021-11-25 20:09:08,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:09:08,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:09:08,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:09:09,228 INFO L134 CoverageAnalysis]: Checked inductivity of 5118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5118 trivial. 0 not checked. [2021-11-25 20:09:09,229 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:09:09,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754299755] [2021-11-25 20:09:09,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754299755] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:09:09,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:09:09,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:09:09,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688689933] [2021-11-25 20:09:09,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:09:09,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:09:09,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:09:09,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:09:09,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:09:09,236 INFO L87 Difference]: Start difference. First operand 3866 states and 5644 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-25 20:09:13,620 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:09:15,779 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:09:17,857 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:09:18,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:09:18,642 INFO L93 Difference]: Finished difference Result 11346 states and 16551 transitions. [2021-11-25 20:09:18,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:09:18,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 406 [2021-11-25 20:09:18,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:09:18,710 INFO L225 Difference]: With dead ends: 11346 [2021-11-25 20:09:18,710 INFO L226 Difference]: Without dead ends: 7553 [2021-11-25 20:09:18,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:09:18,734 INFO L933 BasicCegarLoop]: 3148 mSDtfsCounter, 2706 mSDsluCounter, 2868 mSDsCounter, 0 mSdLazyCounter, 922 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2713 SdHoareTripleChecker+Valid, 5605 SdHoareTripleChecker+Invalid, 938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 922 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:09:18,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2713 Valid, 5605 Invalid, 938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 922 Invalid, 3 Unknown, 0 Unchecked, 9.0s Time] [2021-11-25 20:09:18,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7553 states. [2021-11-25 20:09:19,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7553 to 7549. [2021-11-25 20:09:19,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7549 states, 4640 states have (on average 1.3060344827586208) internal successors, (6060), 4650 states have internal predecessors, (6060), 2456 states have call successors, (2456), 452 states have call predecessors, (2456), 452 states have return successors, (2477), 2450 states have call predecessors, (2477), 2456 states have call successors, (2477) [2021-11-25 20:09:19,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7549 states to 7549 states and 10993 transitions. [2021-11-25 20:09:19,173 INFO L78 Accepts]: Start accepts. Automaton has 7549 states and 10993 transitions. Word has length 406 [2021-11-25 20:09:19,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:09:19,176 INFO L470 AbstractCegarLoop]: Abstraction has 7549 states and 10993 transitions. [2021-11-25 20:09:19,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-25 20:09:19,176 INFO L276 IsEmpty]: Start isEmpty. Operand 7549 states and 10993 transitions. [2021-11-25 20:09:19,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2021-11-25 20:09:19,191 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:09:19,192 INFO L514 BasicCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:09:19,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 20:09:19,192 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:09:19,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:09:19,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1432263591, now seen corresponding path program 1 times [2021-11-25 20:09:19,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:09:19,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132245132] [2021-11-25 20:09:19,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:09:19,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:09:19,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:09:19,901 INFO L134 CoverageAnalysis]: Checked inductivity of 5118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5118 trivial. 0 not checked. [2021-11-25 20:09:19,901 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:09:19,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132245132] [2021-11-25 20:09:19,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132245132] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:09:19,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:09:19,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:09:19,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863606202] [2021-11-25 20:09:19,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:09:19,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:09:19,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:09:19,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:09:19,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:09:19,921 INFO L87 Difference]: Start difference. First operand 7549 states and 10993 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-25 20:09:23,988 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:09:26,382 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:09:28,450 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:09:29,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:09:29,327 INFO L93 Difference]: Finished difference Result 22109 states and 32177 transitions. [2021-11-25 20:09:29,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:09:29,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 408 [2021-11-25 20:09:29,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:09:29,452 INFO L225 Difference]: With dead ends: 22109 [2021-11-25 20:09:29,453 INFO L226 Difference]: Without dead ends: 14633 [2021-11-25 20:09:29,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:09:29,500 INFO L933 BasicCegarLoop]: 3412 mSDtfsCounter, 2704 mSDsluCounter, 2868 mSDsCounter, 0 mSdLazyCounter, 997 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2711 SdHoareTripleChecker+Valid, 5869 SdHoareTripleChecker+Invalid, 1013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 997 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:09:29,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2711 Valid, 5869 Invalid, 1013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 997 Invalid, 3 Unknown, 0 Unchecked, 8.9s Time] [2021-11-25 20:09:29,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14633 states. [2021-11-25 20:09:30,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14633 to 14629. [2021-11-25 20:09:30,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14629 states, 9020 states have (on average 1.3041019955654103) internal successors, (11763), 9042 states have internal predecessors, (11763), 4719 states have call successors, (4719), 889 states have call predecessors, (4719), 889 states have return successors, (4768), 4705 states have call predecessors, (4768), 4719 states have call successors, (4768) [2021-11-25 20:09:30,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14629 states to 14629 states and 21250 transitions. [2021-11-25 20:09:30,574 INFO L78 Accepts]: Start accepts. Automaton has 14629 states and 21250 transitions. Word has length 408 [2021-11-25 20:09:30,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:09:30,575 INFO L470 AbstractCegarLoop]: Abstraction has 14629 states and 21250 transitions. [2021-11-25 20:09:30,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-25 20:09:30,575 INFO L276 IsEmpty]: Start isEmpty. Operand 14629 states and 21250 transitions. [2021-11-25 20:09:30,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2021-11-25 20:09:30,593 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:09:30,594 INFO L514 BasicCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 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] [2021-11-25 20:09:30,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 20:09:30,594 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:09:30,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:09:30,595 INFO L85 PathProgramCache]: Analyzing trace with hash -925165569, now seen corresponding path program 1 times [2021-11-25 20:09:30,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:09:30,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485109638] [2021-11-25 20:09:30,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:09:30,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:09:30,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:09:31,091 INFO L134 CoverageAnalysis]: Checked inductivity of 5114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5114 trivial. 0 not checked. [2021-11-25 20:09:31,092 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:09:31,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485109638] [2021-11-25 20:09:31,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485109638] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:09:31,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:09:31,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:09:31,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981275871] [2021-11-25 20:09:31,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:09:31,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:09:31,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:09:31,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:09:31,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:09:31,095 INFO L87 Difference]: Start difference. First operand 14629 states and 21250 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-25 20:09:35,128 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:09:37,565 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:09:39,633 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:09:40,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:09:40,282 INFO L93 Difference]: Finished difference Result 37116 states and 53651 transitions. [2021-11-25 20:09:40,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:09:40,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 412 [2021-11-25 20:09:40,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:09:40,407 INFO L225 Difference]: With dead ends: 37116 [2021-11-25 20:09:40,408 INFO L226 Difference]: Without dead ends: 22560 [2021-11-25 20:09:40,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:09:40,473 INFO L933 BasicCegarLoop]: 2979 mSDtfsCounter, 1564 mSDsluCounter, 2835 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 12 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1571 SdHoareTripleChecker+Valid, 5406 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:09:40,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1571 Valid, 5406 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 962 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2021-11-25 20:09:40,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22560 states. [2021-11-25 20:09:41,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22560 to 22542. [2021-11-25 20:09:41,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22542 states, 13988 states have (on average 1.305404632542179) internal successors, (18260), 14040 states have internal predecessors, (18260), 7028 states have call successors, (7028), 1525 states have call predecessors, (7028), 1525 states have return successors, (7133), 6984 states have call predecessors, (7133), 7028 states have call successors, (7133) [2021-11-25 20:09:41,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22542 states to 22542 states and 32421 transitions. [2021-11-25 20:09:41,820 INFO L78 Accepts]: Start accepts. Automaton has 22542 states and 32421 transitions. Word has length 412 [2021-11-25 20:09:41,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:09:41,823 INFO L470 AbstractCegarLoop]: Abstraction has 22542 states and 32421 transitions. [2021-11-25 20:09:41,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-25 20:09:41,824 INFO L276 IsEmpty]: Start isEmpty. Operand 22542 states and 32421 transitions. [2021-11-25 20:09:41,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2021-11-25 20:09:41,842 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:09:41,843 INFO L514 BasicCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 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] [2021-11-25 20:09:41,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 20:09:41,843 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:09:41,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:09:41,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1544989785, now seen corresponding path program 1 times [2021-11-25 20:09:41,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:09:41,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287141651] [2021-11-25 20:09:41,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:09:41,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:09:42,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:09:42,330 INFO L134 CoverageAnalysis]: Checked inductivity of 5116 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5116 trivial. 0 not checked. [2021-11-25 20:09:42,330 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:09:42,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287141651] [2021-11-25 20:09:42,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287141651] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:09:42,331 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:09:42,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:09:42,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442086359] [2021-11-25 20:09:42,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:09:42,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:09:42,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:09:42,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:09:42,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:09:42,333 INFO L87 Difference]: Start difference. First operand 22542 states and 32421 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-25 20:09:46,522 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:09:48,651 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:09:50,725 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:09:51,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:09:51,815 INFO L93 Difference]: Finished difference Result 65225 states and 93755 transitions. [2021-11-25 20:09:51,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:09:51,815 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), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 425 [2021-11-25 20:09:51,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:09:52,288 INFO L225 Difference]: With dead ends: 65225 [2021-11-25 20:09:52,288 INFO L226 Difference]: Without dead ends: 42756 [2021-11-25 20:09:52,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:09:52,383 INFO L933 BasicCegarLoop]: 3174 mSDtfsCounter, 2653 mSDsluCounter, 2882 mSDsCounter, 0 mSdLazyCounter, 923 mSolverCounterSat, 16 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2660 SdHoareTripleChecker+Valid, 5635 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 923 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:09:52,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2660 Valid, 5635 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 923 Invalid, 3 Unknown, 0 Unchecked, 8.6s Time] [2021-11-25 20:09:52,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42756 states. [2021-11-25 20:09:54,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42756 to 42722. [2021-11-25 20:09:54,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42722 states, 26587 states have (on average 1.3016511829089406) internal successors, (34607), 26723 states have internal predecessors, (34607), 13233 states have call successors, (13233), 2901 states have call predecessors, (13233), 2901 states have return successors, (13394), 13113 states have call predecessors, (13394), 13233 states have call successors, (13394) [2021-11-25 20:09:54,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42722 states to 42722 states and 61234 transitions. [2021-11-25 20:09:54,831 INFO L78 Accepts]: Start accepts. Automaton has 42722 states and 61234 transitions. Word has length 425 [2021-11-25 20:09:54,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:09:54,832 INFO L470 AbstractCegarLoop]: Abstraction has 42722 states and 61234 transitions. [2021-11-25 20:09:54,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-25 20:09:54,833 INFO L276 IsEmpty]: Start isEmpty. Operand 42722 states and 61234 transitions. [2021-11-25 20:09:54,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2021-11-25 20:09:54,855 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:09:54,855 INFO L514 BasicCegarLoop]: trace histogram [38, 36, 36, 36, 36, 36, 36, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:09:54,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 20:09:54,856 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:09:54,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:09:54,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1257626620, now seen corresponding path program 1 times [2021-11-25 20:09:54,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:09:54,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452870593] [2021-11-25 20:09:54,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:09:54,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:09:55,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:09:55,472 INFO L134 CoverageAnalysis]: Checked inductivity of 5195 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5192 trivial. 0 not checked. [2021-11-25 20:09:55,473 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:09:55,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452870593] [2021-11-25 20:09:55,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452870593] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:09:55,473 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:09:55,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:09:55,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756843721] [2021-11-25 20:09:55,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:09:55,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:09:55,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:09:55,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:09:55,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:09:55,475 INFO L87 Difference]: Start difference. First operand 42722 states and 61234 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-25 20:09:59,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:10:01,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:10:04,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:10:05,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:10:05,240 INFO L93 Difference]: Finished difference Result 86463 states and 123674 transitions. [2021-11-25 20:10:05,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:10:05,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 427 [2021-11-25 20:10:05,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:10:05,624 INFO L225 Difference]: With dead ends: 86463 [2021-11-25 20:10:05,624 INFO L226 Difference]: Without dead ends: 43814 [2021-11-25 20:10:05,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:10:05,764 INFO L933 BasicCegarLoop]: 2718 mSDtfsCounter, 886 mSDsluCounter, 2861 mSDsCounter, 0 mSdLazyCounter, 914 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 5162 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 914 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:10:05,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [893 Valid, 5162 Invalid, 927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 914 Invalid, 3 Unknown, 0 Unchecked, 8.5s Time] [2021-11-25 20:10:05,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43814 states. [2021-11-25 20:10:07,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43814 to 43812. [2021-11-25 20:10:07,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43812 states, 27299 states have (on average 1.29916846770944) internal successors, (35466), 27437 states have internal predecessors, (35466), 13447 states have call successors, (13447), 3065 states have call predecessors, (13447), 3065 states have return successors, (13615), 13325 states have call predecessors, (13615), 13447 states have call successors, (13615) [2021-11-25 20:10:08,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43812 states to 43812 states and 62528 transitions. [2021-11-25 20:10:08,047 INFO L78 Accepts]: Start accepts. Automaton has 43812 states and 62528 transitions. Word has length 427 [2021-11-25 20:10:08,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:10:08,048 INFO L470 AbstractCegarLoop]: Abstraction has 43812 states and 62528 transitions. [2021-11-25 20:10:08,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-25 20:10:08,048 INFO L276 IsEmpty]: Start isEmpty. Operand 43812 states and 62528 transitions. [2021-11-25 20:10:08,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2021-11-25 20:10:08,056 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:10:08,056 INFO L514 BasicCegarLoop]: trace histogram [38, 36, 36, 36, 36, 36, 36, 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] [2021-11-25 20:10:08,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 20:10:08,057 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:10:08,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:10:08,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1251694745, now seen corresponding path program 1 times [2021-11-25 20:10:08,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:10:08,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697230765] [2021-11-25 20:10:08,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:10:08,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:10:08,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:10:08,861 INFO L134 CoverageAnalysis]: Checked inductivity of 5201 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5190 trivial. 0 not checked. [2021-11-25 20:10:08,862 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:10:08,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697230765] [2021-11-25 20:10:08,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697230765] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:10:08,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:10:08,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:10:08,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34210327] [2021-11-25 20:10:08,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:10:08,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:10:08,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:10:08,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:10:08,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:10:08,865 INFO L87 Difference]: Start difference. First operand 43812 states and 62528 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-25 20:10:13,681 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:10:15,786 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:10:17,860 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:10:19,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:10:19,662 INFO L93 Difference]: Finished difference Result 107192 states and 152925 transitions. [2021-11-25 20:10:19,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:10:19,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 447 [2021-11-25 20:10:19,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:10:19,984 INFO L225 Difference]: With dead ends: 107192 [2021-11-25 20:10:19,984 INFO L226 Difference]: Without dead ends: 63453 [2021-11-25 20:10:20,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:10:20,307 INFO L933 BasicCegarLoop]: 4589 mSDtfsCounter, 2649 mSDsluCounter, 2910 mSDsCounter, 0 mSdLazyCounter, 1231 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2656 SdHoareTripleChecker+Valid, 7072 SdHoareTripleChecker+Invalid, 1236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1231 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:10:20,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2656 Valid, 7072 Invalid, 1236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1231 Invalid, 3 Unknown, 0 Unchecked, 9.0s Time] [2021-11-25 20:10:20,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63453 states. [2021-11-25 20:10:22,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63453 to 63435. [2021-11-25 20:10:22,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63435 states, 39538 states have (on average 1.2975871313672922) internal successors, (51304), 39742 states have internal predecessors, (51304), 19467 states have call successors, (19467), 4429 states have call predecessors, (19467), 4429 states have return successors, (19684), 19287 states have call predecessors, (19684), 19467 states have call successors, (19684) [2021-11-25 20:10:23,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63435 states to 63435 states and 90455 transitions. [2021-11-25 20:10:23,526 INFO L78 Accepts]: Start accepts. Automaton has 63435 states and 90455 transitions. Word has length 447 [2021-11-25 20:10:23,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:10:23,527 INFO L470 AbstractCegarLoop]: Abstraction has 63435 states and 90455 transitions. [2021-11-25 20:10:23,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-25 20:10:23,527 INFO L276 IsEmpty]: Start isEmpty. Operand 63435 states and 90455 transitions. [2021-11-25 20:10:23,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2021-11-25 20:10:23,553 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:10:23,554 INFO L514 BasicCegarLoop]: trace histogram [41, 36, 36, 36, 36, 36, 36, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:10:23,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 20:10:23,554 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:10:23,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:10:23,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1915307402, now seen corresponding path program 1 times [2021-11-25 20:10:23,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:10:23,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085725774] [2021-11-25 20:10:23,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:10:23,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:10:23,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:10:23,972 INFO L134 CoverageAnalysis]: Checked inductivity of 5464 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 5457 trivial. 0 not checked. [2021-11-25 20:10:23,973 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:10:23,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085725774] [2021-11-25 20:10:23,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085725774] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:10:23,973 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:10:23,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:10:23,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892500844] [2021-11-25 20:10:23,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:10:23,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:10:23,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:10:23,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:10:23,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:10:23,976 INFO L87 Difference]: Start difference. First operand 63435 states and 90455 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2021-11-25 20:10:29,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:10:32,497 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:10:34,576 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:10:36,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:10:36,577 INFO L93 Difference]: Finished difference Result 156101 states and 222628 transitions. [2021-11-25 20:10:36,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:10:36,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) Word has length 476 [2021-11-25 20:10:36,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:10:37,116 INFO L225 Difference]: With dead ends: 156101 [2021-11-25 20:10:37,116 INFO L226 Difference]: Without dead ends: 92896 [2021-11-25 20:10:37,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:10:37,375 INFO L933 BasicCegarLoop]: 4299 mSDtfsCounter, 2716 mSDsluCounter, 2854 mSDsCounter, 0 mSdLazyCounter, 1181 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2723 SdHoareTripleChecker+Valid, 6742 SdHoareTripleChecker+Invalid, 1193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1181 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:10:37,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2723 Valid, 6742 Invalid, 1193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1181 Invalid, 3 Unknown, 0 Unchecked, 9.7s Time] [2021-11-25 20:10:37,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92896 states. [2021-11-25 20:10:40,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92896 to 92882. [2021-11-25 20:10:40,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92882 states, 57952 states have (on average 1.296762838210933) internal successors, (75150), 58264 states have internal predecessors, (75150), 28411 states have call successors, (28411), 6518 states have call predecessors, (28411), 6518 states have return successors, (28684), 28135 states have call predecessors, (28684), 28411 states have call successors, (28684) [2021-11-25 20:10:41,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92882 states to 92882 states and 132245 transitions. [2021-11-25 20:10:41,392 INFO L78 Accepts]: Start accepts. Automaton has 92882 states and 132245 transitions. Word has length 476 [2021-11-25 20:10:41,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:10:41,394 INFO L470 AbstractCegarLoop]: Abstraction has 92882 states and 132245 transitions. [2021-11-25 20:10:41,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2021-11-25 20:10:41,395 INFO L276 IsEmpty]: Start isEmpty. Operand 92882 states and 132245 transitions. [2021-11-25 20:10:41,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2021-11-25 20:10:41,420 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:10:41,421 INFO L514 BasicCegarLoop]: trace histogram [41, 36, 36, 36, 36, 36, 36, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:10:41,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 20:10:41,421 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:10:41,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:10:41,422 INFO L85 PathProgramCache]: Analyzing trace with hash 900429412, now seen corresponding path program 1 times [2021-11-25 20:10:41,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:10:41,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569726768] [2021-11-25 20:10:41,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:10:41,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:10:41,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:10:41,881 INFO L134 CoverageAnalysis]: Checked inductivity of 5464 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 5457 trivial. 0 not checked. [2021-11-25 20:10:41,881 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:10:41,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569726768] [2021-11-25 20:10:41,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569726768] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:10:41,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:10:41,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:10:41,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991900581] [2021-11-25 20:10:41,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:10:41,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:10:41,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:10:41,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:10:41,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:10:41,885 INFO L87 Difference]: Start difference. First operand 92882 states and 132245 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2021-11-25 20:10:46,116 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:10:49,561 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:10:51,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:10:55,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:10:55,168 INFO L93 Difference]: Finished difference Result 228566 states and 325624 transitions. [2021-11-25 20:10:55,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:10:55,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) Word has length 477 [2021-11-25 20:10:55,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:10:56,229 INFO L225 Difference]: With dead ends: 228566 [2021-11-25 20:10:56,229 INFO L226 Difference]: Without dead ends: 135914 [2021-11-25 20:10:56,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:10:56,509 INFO L933 BasicCegarLoop]: 4377 mSDtfsCounter, 2715 mSDsluCounter, 2854 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2722 SdHoareTripleChecker+Valid, 6820 SdHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:10:56,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2722 Valid, 6820 Invalid, 1225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1213 Invalid, 3 Unknown, 0 Unchecked, 9.2s Time] [2021-11-25 20:10:56,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135914 states. [2021-11-25 20:11:01,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135914 to 135900. [2021-11-25 20:11:01,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135900 states, 84902 states have (on average 1.2960354290829428) internal successors, (110036), 85376 states have internal predecessors, (110036), 41447 states have call successors, (41447), 9550 states have call predecessors, (41447), 9550 states have return successors, (41860), 41027 states have call predecessors, (41860), 41447 states have call successors, (41860) [2021-11-25 20:11:02,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135900 states to 135900 states and 193343 transitions. [2021-11-25 20:11:02,738 INFO L78 Accepts]: Start accepts. Automaton has 135900 states and 193343 transitions. Word has length 477 [2021-11-25 20:11:02,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:11:02,739 INFO L470 AbstractCegarLoop]: Abstraction has 135900 states and 193343 transitions. [2021-11-25 20:11:02,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2021-11-25 20:11:02,740 INFO L276 IsEmpty]: Start isEmpty. Operand 135900 states and 193343 transitions. [2021-11-25 20:11:02,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2021-11-25 20:11:02,757 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:11:02,757 INFO L514 BasicCegarLoop]: trace histogram [41, 36, 36, 36, 36, 36, 36, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:11:02,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 20:11:02,758 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:11:02,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:11:02,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1762101737, now seen corresponding path program 1 times [2021-11-25 20:11:02,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:11:02,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678095669] [2021-11-25 20:11:02,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:11:02,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:11:02,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:11:03,156 INFO L134 CoverageAnalysis]: Checked inductivity of 5464 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 5457 trivial. 0 not checked. [2021-11-25 20:11:03,156 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:11:03,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678095669] [2021-11-25 20:11:03,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678095669] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:11:03,157 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:11:03,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:11:03,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028539097] [2021-11-25 20:11:03,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:11:03,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:11:03,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:11:03,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:11:03,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:11:03,160 INFO L87 Difference]: Start difference. First operand 135900 states and 193343 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2021-11-25 20:11:07,342 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:11:11,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:11:13,306 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []