./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.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_1fed4ce3-2bca-4e27-a7d2-7e2079c4f38b/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fed4ce3-2bca-4e27-a7d2-7e2079c4f38b/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_1fed4ce3-2bca-4e27-a7d2-7e2079c4f38b/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fed4ce3-2bca-4e27-a7d2-7e2079c4f38b/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fed4ce3-2bca-4e27-a7d2-7e2079c4f38b/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_1fed4ce3-2bca-4e27-a7d2-7e2079c4f38b/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 0f1a59e3fe28583d669f3a9c734ebc5395c61cae2e7711aea93760782e80de65 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:07:27,475 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:07:27,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:07:27,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:07:27,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:07:27,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:07:27,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:07:27,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:07:27,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:07:27,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:07:27,556 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:07:27,558 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:07:27,559 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:07:27,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:07:27,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:07:27,571 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:07:27,574 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:07:27,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:07:27,578 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:07:27,584 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:07:27,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:07:27,591 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:07:27,592 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:07:27,593 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:07:27,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:07:27,597 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:07:27,597 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:07:27,603 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:07:27,604 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:07:27,606 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:07:27,607 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:07:27,608 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:07:27,610 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:07:27,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:07:27,613 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:07:27,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:07:27,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:07:27,614 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:07:27,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:07:27,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:07:27,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:07:27,617 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fed4ce3-2bca-4e27-a7d2-7e2079c4f38b/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 20:07:27,661 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:07:27,661 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:07:27,662 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:07:27,662 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:07:27,663 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:07:27,663 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:07:27,664 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:07:27,664 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:07:27,664 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:07:27,664 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:07:27,665 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:07:27,665 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:07:27,666 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:07:27,666 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:07:27,666 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:07:27,666 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:07:27,666 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:07:27,667 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:07:27,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:07:27,668 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:07:27,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:07:27,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:07:27,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:07:27,668 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:07:27,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:07:27,669 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:07:27,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:07:27,671 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:07:27,671 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:07:27,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:07:27,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:07:27,672 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:07:27,672 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:07:27,672 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:07:27,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:07:27,672 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:07:27,673 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:07:27,673 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:07:27,673 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_1fed4ce3-2bca-4e27-a7d2-7e2079c4f38b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fed4ce3-2bca-4e27-a7d2-7e2079c4f38b/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f1a59e3fe28583d669f3a9c734ebc5395c61cae2e7711aea93760782e80de65 [2021-11-25 20:07:27,968 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:07:27,997 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:07:27,999 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:07:28,003 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:07:28,003 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:07:28,005 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fed4ce3-2bca-4e27-a7d2-7e2079c4f38b/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i [2021-11-25 20:07:28,070 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fed4ce3-2bca-4e27-a7d2-7e2079c4f38b/bin/utaipan-eEHZpOm5b7/data/0d631c274/5153e0e30afb420eb7608163da6bf5a4/FLAG388ec75e8 [2021-11-25 20:07:29,047 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:07:29,048 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fed4ce3-2bca-4e27-a7d2-7e2079c4f38b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i [2021-11-25 20:07:29,107 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fed4ce3-2bca-4e27-a7d2-7e2079c4f38b/bin/utaipan-eEHZpOm5b7/data/0d631c274/5153e0e30afb420eb7608163da6bf5a4/FLAG388ec75e8 [2021-11-25 20:07:29,550 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fed4ce3-2bca-4e27-a7d2-7e2079c4f38b/bin/utaipan-eEHZpOm5b7/data/0d631c274/5153e0e30afb420eb7608163da6bf5a4 [2021-11-25 20:07:29,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:07:29,558 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:07:29,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:07:29,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:07:29,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:07:29,566 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:07:29" (1/1) ... [2021-11-25 20:07:29,567 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f096d0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:07:29, skipping insertion in model container [2021-11-25 20:07:29,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:07:29" (1/1) ... [2021-11-25 20:07:29,574 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:07:29,772 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:07:33,024 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_1fed4ce3-2bca-4e27-a7d2-7e2079c4f38b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i[410722,410735] [2021-11-25 20:07:33,027 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_1fed4ce3-2bca-4e27-a7d2-7e2079c4f38b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i[410867,410880] [2021-11-25 20:07:33,039 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:07:33,138 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:07:33,641 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_1fed4ce3-2bca-4e27-a7d2-7e2079c4f38b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i[410722,410735] [2021-11-25 20:07:33,642 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_1fed4ce3-2bca-4e27-a7d2-7e2079c4f38b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i[410867,410880] [2021-11-25 20:07:33,647 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:07:34,111 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:07:34,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:07:34 WrapperNode [2021-11-25 20:07:34,112 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:07:34,113 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:07:34,113 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:07:34,113 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:07:34,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:07:34" (1/1) ... [2021-11-25 20:07:34,265 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:07:34" (1/1) ... [2021-11-25 20:07:34,552 INFO L137 Inliner]: procedures = 459, calls = 3897, calls flagged for inlining = 222, calls inlined = 206, statements flattened = 6629 [2021-11-25 20:07:34,553 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:07:34,553 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:07:34,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:07:34,554 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:07:34,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:07:34" (1/1) ... [2021-11-25 20:07:34,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:07:34" (1/1) ... [2021-11-25 20:07:34,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:07:34" (1/1) ... [2021-11-25 20:07:34,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:07:34" (1/1) ... [2021-11-25 20:07:34,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:07:34" (1/1) ... [2021-11-25 20:07:34,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:07:34" (1/1) ... [2021-11-25 20:07:34,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:07:34" (1/1) ... [2021-11-25 20:07:34,990 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:07:34,991 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:07:34,991 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:07:34,991 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:07:34,992 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:07:34" (1/1) ... [2021-11-25 20:07:35,000 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:07:35,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fed4ce3-2bca-4e27-a7d2-7e2079c4f38b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:07:35,027 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fed4ce3-2bca-4e27-a7d2-7e2079c4f38b/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:07:35,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fed4ce3-2bca-4e27-a7d2-7e2079c4f38b/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:07:35,091 INFO L130 BoogieDeclarations]: Found specification of procedure asix_write_medium_mode [2021-11-25 20:07:35,091 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_write_medium_mode [2021-11-25 20:07:35,091 INFO L130 BoogieDeclarations]: Found specification of procedure mii_check_media [2021-11-25 20:07:35,092 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_check_media [2021-11-25 20:07:35,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 20:07:35,092 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 20:07:35,092 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_nway_reset [2021-11-25 20:07:35,092 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_nway_reset [2021-11-25 20:07:35,092 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_link [2021-11-25 20:07:35,093 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_link [2021-11-25 20:07:35,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 20:07:35,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 20:07:35,093 INFO L130 BoogieDeclarations]: Found specification of procedure asix_write_rx_ctl [2021-11-25 20:07:35,093 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_write_rx_ctl [2021-11-25 20:07:35,093 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_stop [2021-11-25 20:07:35,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_stop [2021-11-25 20:07:35,094 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_set_settings [2021-11-25 20:07:35,094 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_set_settings [2021-11-25 20:07:35,094 INFO L130 BoogieDeclarations]: Found specification of procedure ax88178_reset [2021-11-25 20:07:35,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88178_reset [2021-11-25 20:07:35,095 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2021-11-25 20:07:35,095 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2021-11-25 20:07:35,095 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_settings [2021-11-25 20:07:35,095 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_settings [2021-11-25 20:07:35,095 INFO L130 BoogieDeclarations]: Found specification of procedure asix_mdio_write [2021-11-25 20:07:35,095 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_mdio_write [2021-11-25 20:07:35,096 INFO L130 BoogieDeclarations]: Found specification of procedure asix_status [2021-11-25 20:07:35,096 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_status [2021-11-25 20:07:35,096 INFO L130 BoogieDeclarations]: Found specification of procedure asix_read_rx_ctl [2021-11-25 20:07:35,096 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_read_rx_ctl [2021-11-25 20:07:35,096 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2021-11-25 20:07:35,096 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2021-11-25 20:07:35,097 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-11-25 20:07:35,097 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-11-25 20:07:35,097 INFO L130 BoogieDeclarations]: Found specification of procedure asix_set_eeprom [2021-11-25 20:07:35,097 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_set_eeprom [2021-11-25 20:07:35,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 20:07:35,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 20:07:35,098 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-25 20:07:35,098 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-25 20:07:35,098 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-25 20:07:35,099 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-25 20:07:35,099 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-25 20:07:35,099 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-25 20:07:35,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 20:07:35,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 20:07:35,100 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_reset_phy [2021-11-25 20:07:35,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_reset_phy [2021-11-25 20:07:35,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:07:35,102 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_unbind [2021-11-25 20:07:35,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_unbind [2021-11-25 20:07:35,102 INFO L130 BoogieDeclarations]: Found specification of procedure ax88772_link_reset [2021-11-25 20:07:35,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88772_link_reset [2021-11-25 20:07:35,102 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-25 20:07:35,102 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-25 20:07:35,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_asix_driver_exit_10_2 [2021-11-25 20:07:35,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_asix_driver_exit_10_2 [2021-11-25 20:07:35,103 INFO L130 BoogieDeclarations]: Found specification of procedure asix_set_netdev_dev_addr [2021-11-25 20:07:35,104 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_set_netdev_dev_addr [2021-11-25 20:07:35,104 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_bind [2021-11-25 20:07:35,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_bind [2021-11-25 20:07:35,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 20:07:35,104 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2021-11-25 20:07:35,104 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2021-11-25 20:07:35,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 20:07:35,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 20:07:35,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 20:07:35,105 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2021-11-25 20:07:35,105 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2021-11-25 20:07:35,105 INFO L130 BoogieDeclarations]: Found specification of procedure ax88178_bind [2021-11-25 20:07:35,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88178_bind [2021-11-25 20:07:35,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:07:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-25 20:07:35,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-25 20:07:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 20:07:35,107 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 20:07:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure asix_read_phy_addr [2021-11-25 20:07:35,107 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_read_phy_addr [2021-11-25 20:07:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 20:07:35,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 20:07:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-25 20:07:35,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-25 20:07:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure asix_rx_fixup_internal [2021-11-25 20:07:35,109 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_rx_fixup_internal [2021-11-25 20:07:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:07:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-25 20:07:35,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-25 20:07:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-25 20:07:35,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-25 20:07:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:07:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-25 20:07:35,112 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-25 20:07:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure asix_get_eeprom_len [2021-11-25 20:07:35,112 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_get_eeprom_len [2021-11-25 20:07:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 20:07:35,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 20:07:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 20:07:35,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 20:07:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:07:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure asix_get_wol [2021-11-25 20:07:35,113 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_get_wol [2021-11-25 20:07:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 20:07:35,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 20:07:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_open [2021-11-25 20:07:35,114 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_open [2021-11-25 20:07:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-25 20:07:35,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-25 20:07:35,115 INFO L130 BoogieDeclarations]: Found specification of procedure asix_write_cmd_async [2021-11-25 20:07:35,116 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_write_cmd_async [2021-11-25 20:07:35,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-25 20:07:35,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-25 20:07:35,119 INFO L130 BoogieDeclarations]: Found specification of procedure ax88772_unbind [2021-11-25 20:07:35,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88772_unbind [2021-11-25 20:07:35,120 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_reset [2021-11-25 20:07:35,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_reset [2021-11-25 20:07:35,120 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172_link_reset [2021-11-25 20:07:35,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172_link_reset [2021-11-25 20:07:35,122 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_start_xmit [2021-11-25 20:07:35,122 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_start_xmit [2021-11-25 20:07:35,129 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-25 20:07:35,129 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-25 20:07:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure asix_get_drvinfo [2021-11-25 20:07:35,130 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_get_drvinfo [2021-11-25 20:07:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure asix_set_hw_mii [2021-11-25 20:07:35,130 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_set_hw_mii [2021-11-25 20:07:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:07:35,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:07:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-25 20:07:35,131 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-25 20:07:35,131 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_msglevel [2021-11-25 20:07:35,131 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_msglevel [2021-11-25 20:07:35,131 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2021-11-25 20:07:35,131 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2021-11-25 20:07:35,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 20:07:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 20:07:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 20:07:35,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 20:07:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_set_settings [2021-11-25 20:07:35,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_set_settings [2021-11-25 20:07:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure ax88772_reset [2021-11-25 20:07:35,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88772_reset [2021-11-25 20:07:35,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_6_4 [2021-11-25 20:07:35,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_6_4 [2021-11-25 20:07:35,133 INFO L130 BoogieDeclarations]: Found specification of procedure asix_get_phyid [2021-11-25 20:07:35,133 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_get_phyid [2021-11-25 20:07:35,133 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_stop [2021-11-25 20:07:35,133 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_stop [2021-11-25 20:07:35,133 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-25 20:07:35,134 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-25 20:07:35,134 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2021-11-25 20:07:35,134 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2021-11-25 20:07:35,134 INFO L130 BoogieDeclarations]: Found specification of procedure asix_tx_fixup [2021-11-25 20:07:35,134 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_tx_fixup [2021-11-25 20:07:35,134 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-25 20:07:35,135 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-25 20:07:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 20:07:35,135 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 20:07:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_gset [2021-11-25 20:07:35,135 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_gset [2021-11-25 20:07:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_set_msglevel [2021-11-25 20:07:35,135 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_set_msglevel [2021-11-25 20:07:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2021-11-25 20:07:35,136 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2021-11-25 20:07:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure asix_sw_reset [2021-11-25 20:07:35,136 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_sw_reset [2021-11-25 20:07:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:07:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172_bind [2021-11-25 20:07:35,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172_bind [2021-11-25 20:07:35,137 INFO L130 BoogieDeclarations]: Found specification of procedure asix_get_phy_addr [2021-11-25 20:07:35,137 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_get_phy_addr [2021-11-25 20:07:35,137 INFO L130 BoogieDeclarations]: Found specification of procedure asix_write_cmd [2021-11-25 20:07:35,137 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_write_cmd [2021-11-25 20:07:35,137 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-25 20:07:35,137 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-25 20:07:35,138 INFO L130 BoogieDeclarations]: Found specification of procedure asix_read_medium_status [2021-11-25 20:07:35,138 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_read_medium_status [2021-11-25 20:07:35,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:07:35,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 20:07:35,138 INFO L130 BoogieDeclarations]: Found specification of procedure asix_read_cmd [2021-11-25 20:07:35,138 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_read_cmd [2021-11-25 20:07:35,139 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-25 20:07:35,139 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-25 20:07:35,139 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-25 20:07:35,139 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-25 20:07:35,139 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 20:07:35,139 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 20:07:35,139 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_nway_reset [2021-11-25 20:07:35,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_nway_reset [2021-11-25 20:07:35,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 20:07:35,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 20:07:35,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-25 20:07:35,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-25 20:07:35,140 INFO L130 BoogieDeclarations]: Found specification of procedure asix_write_gpio [2021-11-25 20:07:35,141 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_write_gpio [2021-11-25 20:07:35,141 INFO L130 BoogieDeclarations]: Found specification of procedure asix_mdio_read [2021-11-25 20:07:35,141 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_mdio_read [2021-11-25 20:07:35,141 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2021-11-25 20:07:35,141 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2021-11-25 20:07:35,141 INFO L130 BoogieDeclarations]: Found specification of procedure ax88178_link_reset [2021-11-25 20:07:35,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88178_link_reset [2021-11-25 20:07:35,142 INFO L130 BoogieDeclarations]: Found specification of procedure mii_nway_restart [2021-11-25 20:07:35,142 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_nway_restart [2021-11-25 20:07:35,142 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-25 20:07:35,142 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-25 20:07:35,142 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 20:07:35,142 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 20:07:35,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:07:35,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 20:07:35,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 20:07:35,143 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_adjust_link [2021-11-25 20:07:35,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_adjust_link [2021-11-25 20:07:35,143 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172_set_multicast [2021-11-25 20:07:35,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172_set_multicast [2021-11-25 20:07:35,144 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_rx_fixup [2021-11-25 20:07:35,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_rx_fixup [2021-11-25 20:07:35,144 INFO L130 BoogieDeclarations]: Found specification of procedure asix_set_sw_mii [2021-11-25 20:07:35,144 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_set_sw_mii [2021-11-25 20:07:35,144 INFO L130 BoogieDeclarations]: Found specification of procedure ax88772_bind [2021-11-25 20:07:35,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88772_bind [2021-11-25 20:07:35,144 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_status [2021-11-25 20:07:35,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_status [2021-11-25 20:07:35,145 INFO L130 BoogieDeclarations]: Found specification of procedure asix_rx_fixup_common [2021-11-25 20:07:35,145 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_rx_fixup_common [2021-11-25 20:07:35,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 20:07:35,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 20:07:35,145 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_endpoints [2021-11-25 20:07:35,146 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_endpoints [2021-11-25 20:07:35,146 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2021-11-25 20:07:35,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2021-11-25 20:07:35,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:07:35,146 INFO L130 BoogieDeclarations]: Found specification of procedure asix_get_eeprom [2021-11-25 20:07:35,146 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_get_eeprom [2021-11-25 20:07:35,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 20:07:35,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 20:07:35,147 INFO L130 BoogieDeclarations]: Found specification of procedure asix_set_wol [2021-11-25 20:07:35,147 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_set_wol [2021-11-25 20:07:36,262 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:07:36,271 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:07:36,561 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 20:07:47,016 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-25 20:07:47,119 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:07:48,466 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:07:48,466 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-25 20:07:48,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:07:48 BoogieIcfgContainer [2021-11-25 20:07:48,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:07:48,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:07:48,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:07:48,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:07:48,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:07:29" (1/3) ... [2021-11-25 20:07:48,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@508dcd50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:07:48, skipping insertion in model container [2021-11-25 20:07:48,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:07:34" (2/3) ... [2021-11-25 20:07:48,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@508dcd50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:07:48, skipping insertion in model container [2021-11-25 20:07:48,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:07:48" (3/3) ... [2021-11-25 20:07:48,482 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i [2021-11-25 20:07:48,489 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:07:48,490 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 20:07:48,558 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:07:48,573 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 20:07:48,573 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 20:07:48,645 INFO L276 IsEmpty]: Start isEmpty. Operand has 1746 states, 1040 states have (on average 1.3192307692307692) internal successors, (1372), 1049 states have internal predecessors, (1372), 597 states have call successors, (597), 110 states have call predecessors, (597), 109 states have return successors, (590), 585 states have call predecessors, (590), 590 states have call successors, (590) [2021-11-25 20:07:48,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2021-11-25 20:07:48,693 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:07:48,694 INFO L514 BasicCegarLoop]: trace histogram [39, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:07:48,695 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:07:48,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:07:48,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1469497427, now seen corresponding path program 1 times [2021-11-25 20:07:48,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:07:48,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407855083] [2021-11-25 20:07:48,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:07:48,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:07:49,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:07:50,142 INFO L134 CoverageAnalysis]: Checked inductivity of 5700 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5700 trivial. 0 not checked. [2021-11-25 20:07:50,142 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:07:50,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407855083] [2021-11-25 20:07:50,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407855083] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:07:50,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:07:50,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:07:50,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401203719] [2021-11-25 20:07:50,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:07:50,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:07:50,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:07:50,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:07:50,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:07:50,217 INFO L87 Difference]: Start difference. First operand has 1746 states, 1040 states have (on average 1.3192307692307692) internal successors, (1372), 1049 states have internal predecessors, (1372), 597 states have call successors, (597), 110 states have call predecessors, (597), 109 states have return successors, (590), 585 states have call predecessors, (590), 590 states have call successors, (590) 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, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2021-11-25 20:07:53,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:07:53,167 INFO L93 Difference]: Finished difference Result 5008 states and 7412 transitions. [2021-11-25 20:07:53,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:07:53,169 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, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 414 [2021-11-25 20:07:53,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:07:53,220 INFO L225 Difference]: With dead ends: 5008 [2021-11-25 20:07:53,220 INFO L226 Difference]: Without dead ends: 3273 [2021-11-25 20:07:53,241 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 20:07:53,245 INFO L933 BasicCegarLoop]: 2741 mSDtfsCounter, 2323 mSDsluCounter, 2498 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2323 SdHoareTripleChecker+Valid, 4857 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:07:53,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2323 Valid, 4857 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-25 20:07:53,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3273 states. [2021-11-25 20:07:53,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3273 to 3269. [2021-11-25 20:07:53,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3269 states, 1981 states have (on average 1.3170116102978293) internal successors, (2609), 1997 states have internal predecessors, (2609), 1075 states have call successors, (1075), 212 states have call predecessors, (1075), 212 states have return successors, (1075), 1063 states have call predecessors, (1075), 1075 states have call successors, (1075) [2021-11-25 20:07:53,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3269 states to 3269 states and 4759 transitions. [2021-11-25 20:07:53,553 INFO L78 Accepts]: Start accepts. Automaton has 3269 states and 4759 transitions. Word has length 414 [2021-11-25 20:07:53,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:07:53,555 INFO L470 AbstractCegarLoop]: Abstraction has 3269 states and 4759 transitions. [2021-11-25 20:07:53,556 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, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2021-11-25 20:07:53,556 INFO L276 IsEmpty]: Start isEmpty. Operand 3269 states and 4759 transitions. [2021-11-25 20:07:53,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2021-11-25 20:07:53,575 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:07:53,575 INFO L514 BasicCegarLoop]: trace histogram [39, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:07:53,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 20:07:53,576 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:07:53,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:07:53,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1140303195, now seen corresponding path program 1 times [2021-11-25 20:07:53,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:07:53,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806642499] [2021-11-25 20:07:53,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:07:53,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:07:53,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:07:54,161 INFO L134 CoverageAnalysis]: Checked inductivity of 5700 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5700 trivial. 0 not checked. [2021-11-25 20:07:54,162 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:07:54,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806642499] [2021-11-25 20:07:54,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806642499] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:07:54,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:07:54,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:07:54,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605166865] [2021-11-25 20:07:54,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:07:54,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:07:54,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:07:54,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:07:54,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:07:54,168 INFO L87 Difference]: Start difference. First operand 3269 states and 4759 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, (44), 2 states have call predecessors, (44), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2021-11-25 20:07:56,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:07:56,864 INFO L93 Difference]: Finished difference Result 9549 states and 13881 transitions. [2021-11-25 20:07:56,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:07:56,865 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, (44), 2 states have call predecessors, (44), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 421 [2021-11-25 20:07:56,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:07:56,926 INFO L225 Difference]: With dead ends: 9549 [2021-11-25 20:07:56,926 INFO L226 Difference]: Without dead ends: 6357 [2021-11-25 20:07:56,942 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 20:07:56,951 INFO L933 BasicCegarLoop]: 2705 mSDtfsCounter, 2259 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2259 SdHoareTripleChecker+Valid, 4764 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:07:56,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2259 Valid, 4764 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-25 20:07:56,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6357 states. [2021-11-25 20:07:57,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6357 to 6353. [2021-11-25 20:07:57,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6353 states, 3866 states have (on average 1.3166063114330058) internal successors, (5090), 3900 states have internal predecessors, (5090), 2062 states have call successors, (2062), 424 states have call predecessors, (2062), 424 states have return successors, (2062), 2036 states have call predecessors, (2062), 2062 states have call successors, (2062) [2021-11-25 20:07:57,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6353 states to 6353 states and 9214 transitions. [2021-11-25 20:07:57,340 INFO L78 Accepts]: Start accepts. Automaton has 6353 states and 9214 transitions. Word has length 421 [2021-11-25 20:07:57,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:07:57,342 INFO L470 AbstractCegarLoop]: Abstraction has 6353 states and 9214 transitions. [2021-11-25 20:07:57,342 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, (44), 2 states have call predecessors, (44), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2021-11-25 20:07:57,342 INFO L276 IsEmpty]: Start isEmpty. Operand 6353 states and 9214 transitions. [2021-11-25 20:07:57,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2021-11-25 20:07:57,359 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:07:57,359 INFO L514 BasicCegarLoop]: trace histogram [39, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:07:57,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 20:07:57,361 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:07:57,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:07:57,362 INFO L85 PathProgramCache]: Analyzing trace with hash -63411167, now seen corresponding path program 1 times [2021-11-25 20:07:57,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:07:57,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272492560] [2021-11-25 20:07:57,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:07:57,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:07:57,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:07:57,919 INFO L134 CoverageAnalysis]: Checked inductivity of 5700 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5700 trivial. 0 not checked. [2021-11-25 20:07:57,919 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:07:57,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272492560] [2021-11-25 20:07:57,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272492560] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:07:57,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:07:57,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:07:57,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466948250] [2021-11-25 20:07:57,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:07:57,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:07:57,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:07:57,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:07:57,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:07:57,924 INFO L87 Difference]: Start difference. First operand 6353 states and 9214 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2021-11-25 20:08:00,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:08:00,761 INFO L93 Difference]: Finished difference Result 18655 states and 27020 transitions. [2021-11-25 20:08:00,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:08:00,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 421 [2021-11-25 20:08:00,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:08:00,866 INFO L225 Difference]: With dead ends: 18655 [2021-11-25 20:08:00,867 INFO L226 Difference]: Without dead ends: 12379 [2021-11-25 20:08:00,898 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 20:08:00,903 INFO L933 BasicCegarLoop]: 2803 mSDtfsCounter, 2257 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2257 SdHoareTripleChecker+Valid, 4862 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:08:00,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2257 Valid, 4862 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-25 20:08:00,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12379 states. [2021-11-25 20:08:01,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12379 to 12375. [2021-11-25 20:08:01,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12375 states, 7553 states have (on average 1.314179796107507) internal successors, (9926), 7623 states have internal predecessors, (9926), 3976 states have call successors, (3976), 845 states have call predecessors, (3976), 845 states have return successors, (3976), 3922 states have call predecessors, (3976), 3976 states have call successors, (3976) [2021-11-25 20:08:01,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12375 states to 12375 states and 17878 transitions. [2021-11-25 20:08:01,640 INFO L78 Accepts]: Start accepts. Automaton has 12375 states and 17878 transitions. Word has length 421 [2021-11-25 20:08:01,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:08:01,641 INFO L470 AbstractCegarLoop]: Abstraction has 12375 states and 17878 transitions. [2021-11-25 20:08:01,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2021-11-25 20:08:01,643 INFO L276 IsEmpty]: Start isEmpty. Operand 12375 states and 17878 transitions. [2021-11-25 20:08:01,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2021-11-25 20:08:01,659 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:08:01,660 INFO L514 BasicCegarLoop]: trace histogram [39, 38, 38, 38, 38, 38, 38, 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] [2021-11-25 20:08:01,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 20:08:01,660 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:08:01,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:08:01,661 INFO L85 PathProgramCache]: Analyzing trace with hash 2024716996, now seen corresponding path program 1 times [2021-11-25 20:08:01,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:08:01,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812496160] [2021-11-25 20:08:01,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:08:01,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:08:01,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:08:02,156 INFO L134 CoverageAnalysis]: Checked inductivity of 5703 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5703 trivial. 0 not checked. [2021-11-25 20:08:02,157 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:08:02,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812496160] [2021-11-25 20:08:02,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812496160] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:08:02,157 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:08:02,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:08:02,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365651585] [2021-11-25 20:08:02,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:08:02,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:08:02,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:08:02,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:08:02,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:08:02,160 INFO L87 Difference]: Start difference. First operand 12375 states and 17878 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-25 20:08:05,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:08:05,636 INFO L93 Difference]: Finished difference Result 36171 states and 52164 transitions. [2021-11-25 20:08:05,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:08:05,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 429 [2021-11-25 20:08:05,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:08:05,789 INFO L225 Difference]: With dead ends: 36171 [2021-11-25 20:08:05,789 INFO L226 Difference]: Without dead ends: 23873 [2021-11-25 20:08:05,854 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 20:08:05,855 INFO L933 BasicCegarLoop]: 2592 mSDtfsCounter, 2199 mSDsluCounter, 2406 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2199 SdHoareTripleChecker+Valid, 4637 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:08:05,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2199 Valid, 4637 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-11-25 20:08:05,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23873 states. [2021-11-25 20:08:07,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23873 to 23855. [2021-11-25 20:08:07,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23855 states, 14546 states have (on average 1.309225904028599) internal successors, (19044), 14702 states have internal predecessors, (19044), 7650 states have call successors, (7650), 1658 states have call predecessors, (7650), 1658 states have return successors, (7650), 7526 states have call predecessors, (7650), 7650 states have call successors, (7650) [2021-11-25 20:08:07,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23855 states to 23855 states and 34344 transitions. [2021-11-25 20:08:07,635 INFO L78 Accepts]: Start accepts. Automaton has 23855 states and 34344 transitions. Word has length 429 [2021-11-25 20:08:07,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:08:07,636 INFO L470 AbstractCegarLoop]: Abstraction has 23855 states and 34344 transitions. [2021-11-25 20:08:07,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-25 20:08:07,637 INFO L276 IsEmpty]: Start isEmpty. Operand 23855 states and 34344 transitions. [2021-11-25 20:08:07,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2021-11-25 20:08:07,653 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:08:07,653 INFO L514 BasicCegarLoop]: trace histogram [39, 38, 38, 38, 38, 38, 38, 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] [2021-11-25 20:08:07,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 20:08:07,654 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:08:07,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:08:07,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1649925399, now seen corresponding path program 1 times [2021-11-25 20:08:07,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:08:07,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573858232] [2021-11-25 20:08:07,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:08:07,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:08:07,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:08:08,095 INFO L134 CoverageAnalysis]: Checked inductivity of 5703 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5703 trivial. 0 not checked. [2021-11-25 20:08:08,095 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:08:08,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573858232] [2021-11-25 20:08:08,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573858232] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:08:08,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:08:08,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:08:08,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961239681] [2021-11-25 20:08:08,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:08:08,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:08:08,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:08:08,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:08:08,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:08:08,098 INFO L87 Difference]: Start difference. First operand 23855 states and 34344 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-25 20:08:11,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:08:11,501 INFO L93 Difference]: Finished difference Result 69035 states and 99114 transitions. [2021-11-25 20:08:11,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:08:11,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 428 [2021-11-25 20:08:11,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:08:11,758 INFO L225 Difference]: With dead ends: 69035 [2021-11-25 20:08:11,758 INFO L226 Difference]: Without dead ends: 45257 [2021-11-25 20:08:11,853 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 20:08:11,854 INFO L933 BasicCegarLoop]: 2787 mSDtfsCounter, 2208 mSDsluCounter, 2405 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2208 SdHoareTripleChecker+Valid, 4832 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:08:11,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2208 Valid, 4832 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 919 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-25 20:08:11,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45257 states. [2021-11-25 20:08:14,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45257 to 45239. [2021-11-25 20:08:14,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45239 states, 27484 states have (on average 1.300247416678795) internal successors, (35736), 27812 states have internal predecessors, (35736), 14526 states have call successors, (14526), 3228 states have call predecessors, (14526), 3228 states have return successors, (14526), 14262 states have call predecessors, (14526), 14526 states have call successors, (14526) [2021-11-25 20:08:14,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45239 states to 45239 states and 64788 transitions. [2021-11-25 20:08:15,023 INFO L78 Accepts]: Start accepts. Automaton has 45239 states and 64788 transitions. Word has length 428 [2021-11-25 20:08:15,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:08:15,024 INFO L470 AbstractCegarLoop]: Abstraction has 45239 states and 64788 transitions. [2021-11-25 20:08:15,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-25 20:08:15,025 INFO L276 IsEmpty]: Start isEmpty. Operand 45239 states and 64788 transitions. [2021-11-25 20:08:15,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2021-11-25 20:08:15,039 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:08:15,039 INFO L514 BasicCegarLoop]: trace histogram [39, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:08:15,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 20:08:15,040 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:08:15,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:08:15,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1961609586, now seen corresponding path program 1 times [2021-11-25 20:08:15,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:08:15,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709831934] [2021-11-25 20:08:15,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:08:15,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:08:15,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:08:15,639 INFO L134 CoverageAnalysis]: Checked inductivity of 5700 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5700 trivial. 0 not checked. [2021-11-25 20:08:15,640 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:08:15,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709831934] [2021-11-25 20:08:15,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709831934] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:08:15,642 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:08:15,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:08:15,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285011760] [2021-11-25 20:08:15,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:08:15,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:08:15,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:08:15,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:08:15,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:08:15,645 INFO L87 Difference]: Start difference. First operand 45239 states and 64788 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2021-11-25 20:08:20,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:08:20,231 INFO L93 Difference]: Finished difference Result 128017 states and 182805 transitions. [2021-11-25 20:08:20,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:08:20,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 424 [2021-11-25 20:08:20,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:08:20,810 INFO L225 Difference]: With dead ends: 128017 [2021-11-25 20:08:20,810 INFO L226 Difference]: Without dead ends: 82855 [2021-11-25 20:08:20,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:08:20,998 INFO L933 BasicCegarLoop]: 2941 mSDtfsCounter, 2108 mSDsluCounter, 2438 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2108 SdHoareTripleChecker+Valid, 4997 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:08:20,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2108 Valid, 4997 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 955 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-25 20:08:21,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82855 states. [2021-11-25 20:08:24,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82855 to 82845. [2021-11-25 20:08:24,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82845 states, 50435 states have (on average 1.2930901159908794) internal successors, (65217), 50939 states have internal predecessors, (65217), 26293 states have call successors, (26293), 6116 states have call predecessors, (26293), 6116 states have return successors, (26293), 25917 states have call predecessors, (26293), 26293 states have call successors, (26293) [2021-11-25 20:08:25,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82845 states to 82845 states and 117803 transitions. [2021-11-25 20:08:25,382 INFO L78 Accepts]: Start accepts. Automaton has 82845 states and 117803 transitions. Word has length 424 [2021-11-25 20:08:25,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:08:25,384 INFO L470 AbstractCegarLoop]: Abstraction has 82845 states and 117803 transitions. [2021-11-25 20:08:25,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2021-11-25 20:08:25,384 INFO L276 IsEmpty]: Start isEmpty. Operand 82845 states and 117803 transitions. [2021-11-25 20:08:25,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2021-11-25 20:08:25,424 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:08:25,425 INFO L514 BasicCegarLoop]: trace histogram [40, 38, 38, 38, 38, 38, 38, 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] [2021-11-25 20:08:25,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 20:08:25,425 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:08:25,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:08:25,438 INFO L85 PathProgramCache]: Analyzing trace with hash 17847586, now seen corresponding path program 1 times [2021-11-25 20:08:25,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:08:25,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588630247] [2021-11-25 20:08:25,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:08:25,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:08:25,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:08:25,909 INFO L134 CoverageAnalysis]: Checked inductivity of 5781 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5778 trivial. 0 not checked. [2021-11-25 20:08:25,909 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:08:25,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588630247] [2021-11-25 20:08:25,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588630247] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:08:25,910 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:08:25,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:08:25,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724201202] [2021-11-25 20:08:25,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:08:25,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:08:25,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:08:25,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:08:25,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:08:25,913 INFO L87 Difference]: Start difference. First operand 82845 states and 117803 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-25 20:08:30,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:08:30,451 INFO L93 Difference]: Finished difference Result 166851 states and 236846 transitions. [2021-11-25 20:08:30,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:08:30,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 431 [2021-11-25 20:08:30,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:08:31,290 INFO L225 Difference]: With dead ends: 166851 [2021-11-25 20:08:31,290 INFO L226 Difference]: Without dead ends: 84083 [2021-11-25 20:08:31,585 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 20:08:31,586 INFO L933 BasicCegarLoop]: 2317 mSDtfsCounter, 923 mSDsluCounter, 2439 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 4370 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:08:31,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [923 Valid, 4370 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-25 20:08:31,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84083 states. [2021-11-25 20:08:34,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84083 to 84083. [2021-11-25 20:08:34,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84083 states, 51160 states have (on average 1.2905003909304145) internal successors, (66022), 51666 states have internal predecessors, (66022), 26565 states have call successors, (26565), 6357 states have call predecessors, (26565), 6357 states have return successors, (26565), 26189 states have call predecessors, (26565), 26565 states have call successors, (26565) [2021-11-25 20:08:34,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84083 states to 84083 states and 119152 transitions. [2021-11-25 20:08:35,008 INFO L78 Accepts]: Start accepts. Automaton has 84083 states and 119152 transitions. Word has length 431 [2021-11-25 20:08:35,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:08:35,010 INFO L470 AbstractCegarLoop]: Abstraction has 84083 states and 119152 transitions. [2021-11-25 20:08:35,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-25 20:08:35,010 INFO L276 IsEmpty]: Start isEmpty. Operand 84083 states and 119152 transitions. [2021-11-25 20:08:35,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2021-11-25 20:08:35,025 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:08:35,026 INFO L514 BasicCegarLoop]: trace histogram [43, 38, 38, 38, 38, 38, 38, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:08:35,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 20:08:35,026 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:08:35,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:08:35,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1739002916, now seen corresponding path program 1 times [2021-11-25 20:08:35,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:08:35,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991698852] [2021-11-25 20:08:35,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:08:35,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:08:35,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:08:36,002 INFO L134 CoverageAnalysis]: Checked inductivity of 6058 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6051 trivial. 0 not checked. [2021-11-25 20:08:36,002 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:08:36,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991698852] [2021-11-25 20:08:36,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991698852] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:08:36,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:08:36,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:08:36,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699696117] [2021-11-25 20:08:36,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:08:36,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:08:36,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:08:36,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:08:36,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:08:36,006 INFO L87 Difference]: Start difference. First operand 84083 states and 119152 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2021-11-25 20:08:42,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:08:42,027 INFO L93 Difference]: Finished difference Result 207399 states and 293982 transitions. [2021-11-25 20:08:42,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:08:42,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) Word has length 475 [2021-11-25 20:08:42,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:08:42,687 INFO L225 Difference]: With dead ends: 207399 [2021-11-25 20:08:42,687 INFO L226 Difference]: Without dead ends: 124055 [2021-11-25 20:08:42,931 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 20:08:42,932 INFO L933 BasicCegarLoop]: 3452 mSDtfsCounter, 2273 mSDsluCounter, 2423 mSDsCounter, 0 mSdLazyCounter, 1084 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2273 SdHoareTripleChecker+Valid, 5496 SdHoareTripleChecker+Invalid, 1093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:08:42,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2273 Valid, 5496 Invalid, 1093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1084 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-25 20:08:43,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124055 states. [2021-11-25 20:08:47,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124055 to 124045. [2021-11-25 20:08:47,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124045 states, 75505 states have (on average 1.2893053440169526) internal successors, (97349), 76267 states have internal predecessors, (97349), 39100 states have call successors, (39100), 9439 states have call predecessors, (39100), 9439 states have return successors, (39100), 38532 states have call predecessors, (39100), 39100 states have call successors, (39100) [2021-11-25 20:08:48,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124045 states to 124045 states and 175549 transitions. [2021-11-25 20:08:48,550 INFO L78 Accepts]: Start accepts. Automaton has 124045 states and 175549 transitions. Word has length 475 [2021-11-25 20:08:48,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:08:48,551 INFO L470 AbstractCegarLoop]: Abstraction has 124045 states and 175549 transitions. [2021-11-25 20:08:48,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2021-11-25 20:08:48,552 INFO L276 IsEmpty]: Start isEmpty. Operand 124045 states and 175549 transitions. [2021-11-25 20:08:48,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2021-11-25 20:08:48,576 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:08:48,576 INFO L514 BasicCegarLoop]: trace histogram [43, 38, 38, 38, 38, 38, 38, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:08:48,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 20:08:48,577 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:08:48,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:08:48,577 INFO L85 PathProgramCache]: Analyzing trace with hash 2142400355, now seen corresponding path program 1 times [2021-11-25 20:08:48,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:08:48,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438310837] [2021-11-25 20:08:48,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:08:48,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:08:48,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:08:49,001 INFO L134 CoverageAnalysis]: Checked inductivity of 6058 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6051 trivial. 0 not checked. [2021-11-25 20:08:49,001 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:08:49,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438310837] [2021-11-25 20:08:49,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438310837] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:08:49,002 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:08:49,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:08:49,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487443217] [2021-11-25 20:08:49,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:08:49,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:08:49,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:08:49,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:08:49,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:08:49,004 INFO L87 Difference]: Start difference. First operand 124045 states and 175549 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, (49), 3 states have call predecessors, (49), 3 states have call successors, (49)