./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.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_98c68d88-5aa0-4a9e-b08f-89a5cd2d72ca/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c68d88-5aa0-4a9e-b08f-89a5cd2d72ca/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_98c68d88-5aa0-4a9e-b08f-89a5cd2d72ca/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c68d88-5aa0-4a9e-b08f-89a5cd2d72ca/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c68d88-5aa0-4a9e-b08f-89a5cd2d72ca/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_98c68d88-5aa0-4a9e-b08f-89a5cd2d72ca/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 ad99b1dbefac8c1e84a85aaa3f3639700dac2f8335de90a015e2768054e31e7e --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 17:50:11,748 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 17:50:11,751 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 17:50:11,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 17:50:11,812 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 17:50:11,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 17:50:11,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 17:50:11,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 17:50:11,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 17:50:11,828 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 17:50:11,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 17:50:11,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 17:50:11,832 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 17:50:11,834 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 17:50:11,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 17:50:11,840 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 17:50:11,842 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 17:50:11,843 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 17:50:11,845 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 17:50:11,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 17:50:11,856 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 17:50:11,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 17:50:11,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 17:50:11,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 17:50:11,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 17:50:11,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 17:50:11,871 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 17:50:11,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 17:50:11,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 17:50:11,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 17:50:11,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 17:50:11,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 17:50:11,878 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 17:50:11,880 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 17:50:11,881 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 17:50:11,881 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 17:50:11,882 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 17:50:11,882 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 17:50:11,882 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 17:50:11,883 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 17:50:11,884 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 17:50:11,885 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c68d88-5aa0-4a9e-b08f-89a5cd2d72ca/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 17:50:11,929 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 17:50:11,929 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 17:50:11,930 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 17:50:11,930 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 17:50:11,937 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 17:50:11,937 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 17:50:11,937 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 17:50:11,937 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 17:50:11,938 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 17:50:11,938 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 17:50:11,939 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 17:50:11,939 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 17:50:11,939 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 17:50:11,939 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 17:50:11,940 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 17:50:11,940 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 17:50:11,940 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 17:50:11,940 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 17:50:11,941 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 17:50:11,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 17:50:11,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 17:50:11,942 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 17:50:11,942 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 17:50:11,942 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 17:50:11,943 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 17:50:11,943 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 17:50:11,944 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 17:50:11,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 17:50:11,945 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 17:50:11,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:50:11,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 17:50:11,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 17:50:11,946 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 17:50:11,946 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 17:50:11,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 17:50:11,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 17:50:11,946 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 17:50:11,947 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 17:50:11,947 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_98c68d88-5aa0-4a9e-b08f-89a5cd2d72ca/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c68d88-5aa0-4a9e-b08f-89a5cd2d72ca/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad99b1dbefac8c1e84a85aaa3f3639700dac2f8335de90a015e2768054e31e7e [2021-11-25 17:50:12,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 17:50:12,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 17:50:12,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 17:50:12,287 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 17:50:12,288 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 17:50:12,289 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c68d88-5aa0-4a9e-b08f-89a5cd2d72ca/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2021-11-25 17:50:12,394 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c68d88-5aa0-4a9e-b08f-89a5cd2d72ca/bin/utaipan-eEHZpOm5b7/data/077814061/c70ba6bc333a43f085623a372fc66033/FLAG1256343e8 [2021-11-25 17:50:13,458 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 17:50:13,460 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c68d88-5aa0-4a9e-b08f-89a5cd2d72ca/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2021-11-25 17:50:13,524 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c68d88-5aa0-4a9e-b08f-89a5cd2d72ca/bin/utaipan-eEHZpOm5b7/data/077814061/c70ba6bc333a43f085623a372fc66033/FLAG1256343e8 [2021-11-25 17:50:13,747 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c68d88-5aa0-4a9e-b08f-89a5cd2d72ca/bin/utaipan-eEHZpOm5b7/data/077814061/c70ba6bc333a43f085623a372fc66033 [2021-11-25 17:50:13,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 17:50:13,751 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 17:50:13,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 17:50:13,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 17:50:13,756 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 17:50:13,757 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:50:13" (1/1) ... [2021-11-25 17:50:13,758 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28868fc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:50:13, skipping insertion in model container [2021-11-25 17:50:13,758 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:50:13" (1/1) ... [2021-11-25 17:50:13,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 17:50:13,938 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 17:50:17,931 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_98c68d88-5aa0-4a9e-b08f-89a5cd2d72ca/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445039,445052] [2021-11-25 17:50:17,934 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_98c68d88-5aa0-4a9e-b08f-89a5cd2d72ca/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445184,445197] [2021-11-25 17:50:17,969 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:50:18,020 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 17:50:18,617 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_98c68d88-5aa0-4a9e-b08f-89a5cd2d72ca/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445039,445052] [2021-11-25 17:50:18,618 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_98c68d88-5aa0-4a9e-b08f-89a5cd2d72ca/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445184,445197] [2021-11-25 17:50:18,625 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:50:18,846 INFO L208 MainTranslator]: Completed translation [2021-11-25 17:50:18,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:50:18 WrapperNode [2021-11-25 17:50:18,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 17:50:18,848 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 17:50:18,848 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 17:50:18,849 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 17:50:18,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:50:18" (1/1) ... [2021-11-25 17:50:18,991 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:50:18" (1/1) ... [2021-11-25 17:50:19,297 INFO L137 Inliner]: procedures = 533, calls = 2779, calls flagged for inlining = 243, calls inlined = 223, statements flattened = 6822 [2021-11-25 17:50:19,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 17:50:19,299 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 17:50:19,299 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 17:50:19,299 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 17:50:19,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:50:18" (1/1) ... [2021-11-25 17:50:19,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:50:18" (1/1) ... [2021-11-25 17:50:19,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:50:18" (1/1) ... [2021-11-25 17:50:19,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:50:18" (1/1) ... [2021-11-25 17:50:19,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:50:18" (1/1) ... [2021-11-25 17:50:19,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:50:18" (1/1) ... [2021-11-25 17:50:19,608 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:50:18" (1/1) ... [2021-11-25 17:50:19,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 17:50:19,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 17:50:19,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 17:50:19,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 17:50:19,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:50:18" (1/1) ... [2021-11-25 17:50:19,728 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:50:19,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c68d88-5aa0-4a9e-b08f-89a5cd2d72ca/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:50:19,754 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c68d88-5aa0-4a9e-b08f-89a5cd2d72ca/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 17:50:19,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c68d88-5aa0-4a9e-b08f-89a5cd2d72ca/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 17:50:19,801 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_per_engine_handler_adjust [2021-11-25 17:50:19,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_per_engine_handler_adjust [2021-11-25 17:50:19,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 17:50:19,802 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 17:50:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2021-11-25 17:50:19,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2021-11-25 17:50:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_core_destroy [2021-11-25 17:50:19,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_core_destroy [2021-11-25 17:50:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 17:50:19,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 17:50:19,803 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-25 17:50:19,803 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-25 17:50:19,803 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_watermark_intr_disable [2021-11-25 17:50:19,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_watermark_intr_disable [2021-11-25 17:50:19,803 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-25 17:50:19,804 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-25 17:50:19,804 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_completed_recv_next [2021-11-25 17:50:19,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_completed_recv_next [2021-11-25 17:50:19,804 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-25 17:50:19,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-25 17:50:19,805 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_completed_send_next [2021-11-25 17:50:19,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_completed_send_next [2021-11-25 17:50:19,805 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-25 17:50:19,805 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-25 17:50:19,806 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_ce_deinit [2021-11-25 17:50:19,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_ce_deinit [2021-11-25 17:50:19,807 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_start [2021-11-25 17:50:19,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_start [2021-11-25 17:50:19,807 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_resume [2021-11-25 17:50:19,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_resume [2021-11-25 17:50:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 17:50:19,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 17:50:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_read32 [2021-11-25 17:50:19,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_read32 [2021-11-25 17:50:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-25 17:50:19,809 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-25 17:50:19,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 17:50:19,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 17:50:19,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ath10k_pci_exit_13_2 [2021-11-25 17:50:19,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ath10k_pci_exit_13_2 [2021-11-25 17:50:19,810 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2021-11-25 17:50:19,810 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2021-11-25 17:50:19,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 17:50:19,810 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2021-11-25 17:50:19,811 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2021-11-25 17:50:19,811 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_diag_write_mem [2021-11-25 17:50:19,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_diag_write_mem [2021-11-25 17:50:19,812 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-25 17:50:19,812 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-25 17:50:19,813 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-25 17:50:19,813 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-25 17:50:19,813 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_base_address [2021-11-25 17:50:19,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_base_address [2021-11-25 17:50:19,813 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_diag_write_access [2021-11-25 17:50:19,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_diag_write_access [2021-11-25 17:50:19,814 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-25 17:50:19,814 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-25 17:50:19,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 17:50:19,815 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 17:50:19,815 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 17:50:19,815 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-25 17:50:19,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-25 17:50:19,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 17:50:19,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 17:50:19,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 17:50:19,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 17:50:19,816 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-25 17:50:19,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-25 17:50:19,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_84 [2021-11-25 17:50:19,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_84 [2021-11-25 17:50:19,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-25 17:50:19,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-25 17:50:19,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 17:50:19,818 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 17:50:19,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_86 [2021-11-25 17:50:19,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_86 [2021-11-25 17:50:19,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_88 [2021-11-25 17:50:19,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_88 [2021-11-25 17:50:19,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-25 17:50:19,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-25 17:50:19,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-25 17:50:19,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-25 17:50:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_wake [2021-11-25 17:50:19,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_wake [2021-11-25 17:50:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 17:50:19,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 17:50:19,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-25 17:50:19,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-25 17:50:19,822 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_copy_complete_intr_disable [2021-11-25 17:50:19,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_copy_complete_intr_disable [2021-11-25 17:50:19,822 INFO L130 BoogieDeclarations]: Found specification of procedure get_free_compl [2021-11-25 17:50:19,823 INFO L138 BoogieDeclarations]: Found implementation of procedure get_free_compl [2021-11-25 17:50:19,823 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_process_ce [2021-11-25 17:50:19,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_process_ce [2021-11-25 17:50:19,823 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_reg_read32 [2021-11-25 17:50:19,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_reg_read32 [2021-11-25 17:50:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-25 17:50:19,824 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-25 17:50:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-25 17:50:19,824 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-25 17:50:19,825 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-25 17:50:19,825 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-25 17:50:19,825 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_do_pci_wake [2021-11-25 17:50:19,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_do_pci_wake [2021-11-25 17:50:19,826 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_cleanup_ce [2021-11-25 17:50:19,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_cleanup_ce [2021-11-25 17:50:19,826 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_disable_interrupts [2021-11-25 17:50:19,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_disable_interrupts [2021-11-25 17:50:19,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 17:50:19,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-25 17:50:19,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-25 17:50:19,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-25 17:50:19,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-25 17:50:19,830 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_sleep [2021-11-25 17:50:19,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_sleep [2021-11-25 17:50:19,831 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2021-11-25 17:50:19,832 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2021-11-25 17:50:19,832 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-25 17:50:19,832 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-25 17:50:19,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 17:50:19,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 17:50:19,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 17:50:19,839 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 17:50:19,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 17:50:19,840 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_request_early_irq [2021-11-25 17:50:19,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_request_early_irq [2021-11-25 17:50:19,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 17:50:19,840 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-11-25 17:50:19,840 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-11-25 17:50:19,841 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 17:50:19,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 17:50:19,841 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_reg_write32 [2021-11-25 17:50:19,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_reg_write32 [2021-11-25 17:50:19,841 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 17:50:19,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 17:50:19,841 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2021-11-25 17:50:19,842 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2021-11-25 17:50:19,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-25 17:50:19,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-25 17:50:19,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-25 17:50:19,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-25 17:50:19,842 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_get_free_queue_number [2021-11-25 17:50:19,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_get_free_queue_number [2021-11-25 17:50:19,843 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_stop [2021-11-25 17:50:19,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_stop [2021-11-25 17:50:19,843 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_recv_buf_enqueue [2021-11-25 17:50:19,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_recv_buf_enqueue [2021-11-25 17:50:19,843 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_priv [2021-11-25 17:50:19,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_priv [2021-11-25 17:50:19,844 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 17:50:19,844 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 17:50:19,844 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-25 17:50:19,844 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-25 17:50:19,844 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_deinit [2021-11-25 17:50:19,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_deinit [2021-11-25 17:50:19,844 INFO L130 BoogieDeclarations]: Found specification of procedure __roundup_pow_of_two [2021-11-25 17:50:19,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __roundup_pow_of_two [2021-11-25 17:50:19,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 17:50:19,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 17:50:19,845 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_rx_pipe_cleanup [2021-11-25 17:50:19,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_rx_pipe_cleanup [2021-11-25 17:50:19,845 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_revoke_recv_next [2021-11-25 17:50:19,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_revoke_recv_next [2021-11-25 17:50:19,846 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_diag_read_access [2021-11-25 17:50:19,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_diag_read_access [2021-11-25 17:50:19,846 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-25 17:50:19,846 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-25 17:50:19,846 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_stop_ce [2021-11-25 17:50:19,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_stop_ce [2021-11-25 17:50:19,847 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_device_reset [2021-11-25 17:50:19,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_device_reset [2021-11-25 17:50:19,847 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-25 17:50:19,847 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-25 17:50:19,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 17:50:19,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 17:50:19,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 17:50:19,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 17:50:19,848 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_post_rx_pipe [2021-11-25 17:50:19,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_post_rx_pipe [2021-11-25 17:50:19,848 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_free_irq [2021-11-25 17:50:19,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_free_irq [2021-11-25 17:50:19,848 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-25 17:50:19,848 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-25 17:50:19,849 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_region [2021-11-25 17:50:19,849 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_region [2021-11-25 17:50:19,849 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_power_down [2021-11-25 17:50:19,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_power_down [2021-11-25 17:50:19,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-25 17:50:19,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-25 17:50:19,850 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_per_engine_service [2021-11-25 17:50:19,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_per_engine_service [2021-11-25 17:50:19,850 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-25 17:50:19,850 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-25 17:50:19,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 17:50:19,850 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 17:50:19,850 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_send [2021-11-25 17:50:19,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_send [2021-11-25 17:50:19,851 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_suspend [2021-11-25 17:50:19,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_suspend [2021-11-25 17:50:19,851 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-25 17:50:19,851 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-25 17:50:19,851 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2021-11-25 17:50:19,852 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2021-11-25 17:50:19,852 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-25 17:50:19,852 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-25 17:50:19,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 17:50:19,852 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-25 17:50:19,852 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-25 17:50:19,852 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_src_ring_read_index_get [2021-11-25 17:50:19,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_src_ring_read_index_get [2021-11-25 17:50:19,853 INFO L130 BoogieDeclarations]: Found specification of procedure ATH10K_SKB_CB [2021-11-25 17:50:19,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ATH10K_SKB_CB [2021-11-25 17:50:19,853 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_free_early_irq [2021-11-25 17:50:19,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_free_early_irq [2021-11-25 17:50:19,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 17:50:19,854 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-11-25 17:50:19,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-11-25 17:50:19,854 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_do_pci_sleep [2021-11-25 17:50:19,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_do_pci_sleep [2021-11-25 17:50:19,854 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_kill_tasklet [2021-11-25 17:50:19,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_kill_tasklet [2021-11-25 17:50:19,854 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_remove [2021-11-25 17:50:19,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_remove [2021-11-25 17:50:19,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 17:50:19,855 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-25 17:50:19,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-25 17:50:19,855 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_disable_and_clear_legacy_irq [2021-11-25 17:50:19,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_disable_and_clear_legacy_irq [2021-11-25 17:50:19,855 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-25 17:50:19,856 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-25 17:50:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-25 17:50:19,856 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-25 17:50:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_irq_pending [2021-11-25 17:50:19,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_irq_pending [2021-11-25 17:50:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-25 17:50:19,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-25 17:50:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 17:50:19,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 17:50:19,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-25 17:50:19,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-25 17:50:19,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-25 17:50:19,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-25 17:50:19,862 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2021-11-25 17:50:19,862 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2021-11-25 17:50:19,862 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-25 17:50:19,862 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-25 17:50:19,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_87 [2021-11-25 17:50:19,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_87 [2021-11-25 17:50:19,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_85 [2021-11-25 17:50:19,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_85 [2021-11-25 17:50:19,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_83 [2021-11-25 17:50:19,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_83 [2021-11-25 17:50:19,865 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_write32 [2021-11-25 17:50:19,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_write32 [2021-11-25 17:50:19,865 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_map_service_to_pipe [2021-11-25 17:50:19,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_map_service_to_pipe [2021-11-25 17:50:19,865 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_msi_block [2021-11-25 17:50:19,865 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_msi_block [2021-11-25 17:50:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-25 17:50:19,866 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-25 17:50:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 17:50:19,866 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 17:50:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 17:50:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_3_6 [2021-11-25 17:50:19,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_3_6 [2021-11-25 17:50:19,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 17:50:19,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 17:50:19,867 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-25 17:50:19,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-25 17:50:19,867 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-25 17:50:19,867 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-25 17:50:19,867 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_dbg_dump [2021-11-25 17:50:19,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_dbg_dump [2021-11-25 17:50:19,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_2_6 [2021-11-25 17:50:19,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_2_6 [2021-11-25 17:50:19,868 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_power_up [2021-11-25 17:50:19,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_power_up [2021-11-25 17:50:19,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 17:50:19,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 17:50:19,869 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_deinit_irq [2021-11-25 17:50:19,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_deinit_irq [2021-11-25 17:50:19,869 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_master [2021-11-25 17:50:19,869 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_master [2021-11-25 17:50:19,869 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-25 17:50:19,869 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-25 17:50:19,870 INFO L130 BoogieDeclarations]: Found specification of procedure host_interest_item_address [2021-11-25 17:50:19,870 INFO L138 BoogieDeclarations]: Found implementation of procedure host_interest_item_address [2021-11-25 17:50:19,870 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_diag_read_mem [2021-11-25 17:50:19,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_diag_read_mem [2021-11-25 17:50:19,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2021-11-25 17:50:19,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2021-11-25 17:50:19,870 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-25 17:50:19,871 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-25 17:50:19,871 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_cancel_send_next [2021-11-25 17:50:19,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_cancel_send_next [2021-11-25 17:50:19,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 17:50:19,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 17:50:19,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 17:50:19,871 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_engine_int_status_clear [2021-11-25 17:50:19,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_engine_int_status_clear [2021-11-25 17:50:20,920 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 17:50:20,925 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 17:50:21,117 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 17:50:25,678 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-25 17:50:25,850 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 17:50:27,111 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 17:50:27,111 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-25 17:50:27,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:50:27 BoogieIcfgContainer [2021-11-25 17:50:27,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 17:50:27,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 17:50:27,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 17:50:27,122 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 17:50:27,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:50:13" (1/3) ... [2021-11-25 17:50:27,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a7c150 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:50:27, skipping insertion in model container [2021-11-25 17:50:27,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:50:18" (2/3) ... [2021-11-25 17:50:27,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a7c150 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:50:27, skipping insertion in model container [2021-11-25 17:50:27,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:50:27" (3/3) ... [2021-11-25 17:50:27,125 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2021-11-25 17:50:27,130 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 17:50:27,130 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 17:50:27,189 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 17:50:27,195 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 17:50:27,195 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 17:50:27,260 INFO L276 IsEmpty]: Start isEmpty. Operand has 2073 states, 1194 states have (on average 1.295644891122278) internal successors, (1547), 1241 states have internal predecessors, (1547), 741 states have call successors, (741), 142 states have call predecessors, (741), 141 states have return successors, (732), 726 states have call predecessors, (732), 732 states have call successors, (732) [2021-11-25 17:50:27,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-11-25 17:50:27,286 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:27,287 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:50:27,288 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:50:27,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:27,293 INFO L85 PathProgramCache]: Analyzing trace with hash 973588671, now seen corresponding path program 1 times [2021-11-25 17:50:27,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:50:27,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090656587] [2021-11-25 17:50:27,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:27,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:50:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:28,085 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2021-11-25 17:50:28,085 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:50:28,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090656587] [2021-11-25 17:50:28,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090656587] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:50:28,087 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:50:28,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:50:28,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207647020] [2021-11-25 17:50:28,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:50:28,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:50:28,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:50:28,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:50:28,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:50:28,128 INFO L87 Difference]: Start difference. First operand has 2073 states, 1194 states have (on average 1.295644891122278) internal successors, (1547), 1241 states have internal predecessors, (1547), 741 states have call successors, (741), 142 states have call predecessors, (741), 141 states have return successors, (732), 726 states have call predecessors, (732), 732 states have call successors, (732) Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-25 17:50:29,935 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:50:33,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:50:36,522 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:50:38,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:50:38,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:38,995 INFO L93 Difference]: Finished difference Result 5980 states and 8790 transitions. [2021-11-25 17:50:38,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:50:38,998 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 186 [2021-11-25 17:50:38,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:39,048 INFO L225 Difference]: With dead ends: 5980 [2021-11-25 17:50:39,048 INFO L226 Difference]: Without dead ends: 3872 [2021-11-25 17:50:39,070 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 17:50:39,073 INFO L933 BasicCegarLoop]: 3476 mSDtfsCounter, 2706 mSDsluCounter, 2931 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2711 SdHoareTripleChecker+Valid, 6108 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:39,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2711 Valid, 6108 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 698 Invalid, 2 Unknown, 0 Unchecked, 10.5s Time] [2021-11-25 17:50:39,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3872 states. [2021-11-25 17:50:39,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3872 to 3869. [2021-11-25 17:50:39,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3869 states, 2250 states have (on average 1.2835555555555556) internal successors, (2888), 2325 states have internal predecessors, (2888), 1345 states have call successors, (1345), 273 states have call predecessors, (1345), 273 states have return successors, (1350), 1332 states have call predecessors, (1350), 1345 states have call successors, (1350) [2021-11-25 17:50:39,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3869 states to 3869 states and 5583 transitions. [2021-11-25 17:50:39,468 INFO L78 Accepts]: Start accepts. Automaton has 3869 states and 5583 transitions. Word has length 186 [2021-11-25 17:50:39,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:39,470 INFO L470 AbstractCegarLoop]: Abstraction has 3869 states and 5583 transitions. [2021-11-25 17:50:39,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-25 17:50:39,471 INFO L276 IsEmpty]: Start isEmpty. Operand 3869 states and 5583 transitions. [2021-11-25 17:50:39,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-11-25 17:50:39,482 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:39,488 INFO L514 BasicCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:50:39,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 17:50:39,489 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:50:39,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:39,492 INFO L85 PathProgramCache]: Analyzing trace with hash 738020420, now seen corresponding path program 1 times [2021-11-25 17:50:39,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:50:39,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359939503] [2021-11-25 17:50:39,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:39,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:50:39,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:39,910 INFO L134 CoverageAnalysis]: Checked inductivity of 993 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-11-25 17:50:39,910 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:50:39,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359939503] [2021-11-25 17:50:39,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359939503] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:50:39,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:50:39,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:50:39,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621675395] [2021-11-25 17:50:39,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:50:39,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:50:39,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:50:39,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:50:39,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:50:39,918 INFO L87 Difference]: Start difference. First operand 3869 states and 5583 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, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-25 17:50:41,322 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:50:43,341 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:50:45,733 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:50:50,076 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:50:53,976 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:50:56,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:50:56,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:56,642 INFO L93 Difference]: Finished difference Result 9498 states and 13703 transitions. [2021-11-25 17:50:56,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:50:56,643 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, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 233 [2021-11-25 17:50:56,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:56,702 INFO L225 Difference]: With dead ends: 9498 [2021-11-25 17:50:56,702 INFO L226 Difference]: Without dead ends: 5660 [2021-11-25 17:50:56,730 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 17:50:56,731 INFO L933 BasicCegarLoop]: 4884 mSDtfsCounter, 2533 mSDsluCounter, 2861 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 15 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2541 SdHoareTripleChecker+Valid, 7448 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:56,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2541 Valid, 7448 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 928 Invalid, 5 Unknown, 0 Unchecked, 16.4s Time] [2021-11-25 17:50:56,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5660 states. [2021-11-25 17:50:57,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5660 to 5655. [2021-11-25 17:50:57,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5655 states, 3283 states have (on average 1.2805360950350289) internal successors, (4204), 3394 states have internal predecessors, (4204), 1965 states have call successors, (1965), 406 states have call predecessors, (1965), 406 states have return successors, (1978), 1943 states have call predecessors, (1978), 1965 states have call successors, (1978) [2021-11-25 17:50:57,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5655 states to 5655 states and 8147 transitions. [2021-11-25 17:50:57,103 INFO L78 Accepts]: Start accepts. Automaton has 5655 states and 8147 transitions. Word has length 233 [2021-11-25 17:50:57,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:57,105 INFO L470 AbstractCegarLoop]: Abstraction has 5655 states and 8147 transitions. [2021-11-25 17:50:57,106 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, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-25 17:50:57,106 INFO L276 IsEmpty]: Start isEmpty. Operand 5655 states and 8147 transitions. [2021-11-25 17:50:57,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-11-25 17:50:57,117 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:57,118 INFO L514 BasicCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 3, 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] [2021-11-25 17:50:57,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 17:50:57,118 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:50:57,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:57,119 INFO L85 PathProgramCache]: Analyzing trace with hash -787524890, now seen corresponding path program 1 times [2021-11-25 17:50:57,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:50:57,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872593638] [2021-11-25 17:50:57,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:57,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:50:57,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:57,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1004 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1004 trivial. 0 not checked. [2021-11-25 17:50:57,441 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:50:57,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872593638] [2021-11-25 17:50:57,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872593638] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:50:57,441 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:50:57,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:50:57,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952106931] [2021-11-25 17:50:57,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:50:57,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:50:57,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:50:57,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:50:57,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:50:57,445 INFO L87 Difference]: Start difference. First operand 5655 states and 8147 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-25 17:51:00,561 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:51:05,544 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:51:08,214 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:51:10,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:51:10,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:51:10,887 INFO L93 Difference]: Finished difference Result 13417 states and 19310 transitions. [2021-11-25 17:51:10,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:51:10,888 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, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 240 [2021-11-25 17:51:10,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:51:10,955 INFO L225 Difference]: With dead ends: 13417 [2021-11-25 17:51:10,955 INFO L226 Difference]: Without dead ends: 7793 [2021-11-25 17:51:10,988 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 17:51:10,989 INFO L933 BasicCegarLoop]: 4537 mSDtfsCounter, 2427 mSDsluCounter, 2845 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 17 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2432 SdHoareTripleChecker+Valid, 7084 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2021-11-25 17:51:10,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2432 Valid, 7084 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 897 Invalid, 4 Unknown, 0 Unchecked, 13.2s Time] [2021-11-25 17:51:11,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7793 states. [2021-11-25 17:51:11,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7793 to 7785. [2021-11-25 17:51:11,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7785 states, 4550 states have (on average 1.2764835164835164) internal successors, (5808), 4711 states have internal predecessors, (5808), 2667 states have call successors, (2667), 567 states have call predecessors, (2667), 567 states have return successors, (2685), 2631 states have call predecessors, (2685), 2667 states have call successors, (2685) [2021-11-25 17:51:11,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7785 states to 7785 states and 11160 transitions. [2021-11-25 17:51:11,446 INFO L78 Accepts]: Start accepts. Automaton has 7785 states and 11160 transitions. Word has length 240 [2021-11-25 17:51:11,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:51:11,447 INFO L470 AbstractCegarLoop]: Abstraction has 7785 states and 11160 transitions. [2021-11-25 17:51:11,448 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, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-25 17:51:11,448 INFO L276 IsEmpty]: Start isEmpty. Operand 7785 states and 11160 transitions. [2021-11-25 17:51:11,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-11-25 17:51:11,460 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:51:11,460 INFO L514 BasicCegarLoop]: trace histogram [18, 16, 16, 16, 16, 16, 16, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:51:11,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 17:51:11,461 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:51:11,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:51:11,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1797220059, now seen corresponding path program 1 times [2021-11-25 17:51:11,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:51:11,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853841124] [2021-11-25 17:51:11,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:11,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:51:11,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:51:11,696 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1038 trivial. 0 not checked. [2021-11-25 17:51:11,696 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:51:11,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853841124] [2021-11-25 17:51:11,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853841124] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:51:11,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:51:11,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:51:11,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028164563] [2021-11-25 17:51:11,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:51:11,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:51:11,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:51:11,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:51:11,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:51:11,699 INFO L87 Difference]: Start difference. First operand 7785 states and 11160 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, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-25 17:51:13,537 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:51:15,579 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:51:18,716 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:51:20,775 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:51:23,710 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:51:25,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:51:26,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:51:26,111 INFO L93 Difference]: Finished difference Result 15762 states and 22550 transitions. [2021-11-25 17:51:26,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:51:26,112 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, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 255 [2021-11-25 17:51:26,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:51:26,177 INFO L225 Difference]: With dead ends: 15762 [2021-11-25 17:51:26,177 INFO L226 Difference]: Without dead ends: 8008 [2021-11-25 17:51:26,215 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 17:51:26,216 INFO L933 BasicCegarLoop]: 2643 mSDtfsCounter, 262 mSDsluCounter, 2877 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 4 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 5216 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2021-11-25 17:51:26,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 5216 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 639 Invalid, 5 Unknown, 0 Unchecked, 14.1s Time] [2021-11-25 17:51:26,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8008 states. [2021-11-25 17:51:26,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8008 to 8008. [2021-11-25 17:51:26,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8008 states, 4697 states have (on average 1.273578880136257) internal successors, (5982), 4860 states have internal predecessors, (5982), 2716 states have call successors, (2716), 594 states have call predecessors, (2716), 594 states have return successors, (2734), 2680 states have call predecessors, (2734), 2716 states have call successors, (2734) [2021-11-25 17:51:26,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8008 states to 8008 states and 11432 transitions. [2021-11-25 17:51:26,618 INFO L78 Accepts]: Start accepts. Automaton has 8008 states and 11432 transitions. Word has length 255 [2021-11-25 17:51:26,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:51:26,619 INFO L470 AbstractCegarLoop]: Abstraction has 8008 states and 11432 transitions. [2021-11-25 17:51:26,619 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, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-25 17:51:26,620 INFO L276 IsEmpty]: Start isEmpty. Operand 8008 states and 11432 transitions. [2021-11-25 17:51:26,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2021-11-25 17:51:26,635 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:51:26,635 INFO L514 BasicCegarLoop]: trace histogram [21, 15, 15, 15, 15, 15, 15, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:51:26,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 17:51:26,636 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:51:26,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:51:26,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1586378558, now seen corresponding path program 1 times [2021-11-25 17:51:26,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:51:26,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595894320] [2021-11-25 17:51:26,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:26,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:51:26,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:51:26,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1108 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 1087 trivial. 0 not checked. [2021-11-25 17:51:26,893 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:51:26,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595894320] [2021-11-25 17:51:26,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595894320] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:51:26,894 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:51:26,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:51:26,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872546100] [2021-11-25 17:51:26,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:51:26,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:51:26,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:51:26,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:51:26,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:51:26,897 INFO L87 Difference]: Start difference. First operand 8008 states and 11432 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-25 17:51:31,141 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:51:33,737 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:51:35,021 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:51:38,311 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:51:40,505 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:51:40,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:51:40,865 INFO L93 Difference]: Finished difference Result 17975 states and 25665 transitions. [2021-11-25 17:51:40,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:51:40,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 278 [2021-11-25 17:51:40,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:51:40,925 INFO L225 Difference]: With dead ends: 17975 [2021-11-25 17:51:40,925 INFO L226 Difference]: Without dead ends: 10175 [2021-11-25 17:51:40,954 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 17:51:40,955 INFO L933 BasicCegarLoop]: 4769 mSDtfsCounter, 2435 mSDsluCounter, 2834 mSDsCounter, 0 mSdLazyCounter, 958 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2440 SdHoareTripleChecker+Valid, 7305 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 958 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2021-11-25 17:51:40,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2440 Valid, 7305 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 958 Invalid, 3 Unknown, 0 Unchecked, 13.7s Time] [2021-11-25 17:51:40,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10175 states. [2021-11-25 17:51:41,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10175 to 10167. [2021-11-25 17:51:41,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10167 states, 5976 states have (on average 1.2714190093708166) internal successors, (7598), 6189 states have internal predecessors, (7598), 3425 states have call successors, (3425), 765 states have call predecessors, (3425), 765 states have return successors, (3448), 3375 states have call predecessors, (3448), 3425 states have call successors, (3448) [2021-11-25 17:51:41,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10167 states to 10167 states and 14471 transitions. [2021-11-25 17:51:41,565 INFO L78 Accepts]: Start accepts. Automaton has 10167 states and 14471 transitions. Word has length 278 [2021-11-25 17:51:41,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:51:41,566 INFO L470 AbstractCegarLoop]: Abstraction has 10167 states and 14471 transitions. [2021-11-25 17:51:41,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-25 17:51:41,567 INFO L276 IsEmpty]: Start isEmpty. Operand 10167 states and 14471 transitions. [2021-11-25 17:51:41,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2021-11-25 17:51:41,579 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:51:41,579 INFO L514 BasicCegarLoop]: trace histogram [21, 15, 15, 15, 15, 15, 15, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:51:41,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 17:51:41,580 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:51:41,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:51:41,581 INFO L85 PathProgramCache]: Analyzing trace with hash 647851938, now seen corresponding path program 1 times [2021-11-25 17:51:41,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:51:41,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989068766] [2021-11-25 17:51:41,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:41,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:51:41,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:51:42,326 INFO L134 CoverageAnalysis]: Checked inductivity of 1171 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1171 trivial. 0 not checked. [2021-11-25 17:51:42,327 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:51:42,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989068766] [2021-11-25 17:51:42,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989068766] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:51:42,327 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:51:42,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 17:51:42,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431624364] [2021-11-25 17:51:42,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:51:42,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 17:51:42,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:51:42,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 17:51:42,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 17:51:42,329 INFO L87 Difference]: Start difference. First operand 10167 states and 14471 transitions. Second operand has 6 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-25 17:51:47,423 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:51:51,317 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:51:53,369 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:51:57,930 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:52:03,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:52:05,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:52:06,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:52:06,117 INFO L93 Difference]: Finished difference Result 17759 states and 25306 transitions. [2021-11-25 17:52:06,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 17:52:06,118 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 297 [2021-11-25 17:52:06,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:52:06,208 INFO L225 Difference]: With dead ends: 17759 [2021-11-25 17:52:06,208 INFO L226 Difference]: Without dead ends: 17757 [2021-11-25 17:52:06,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-25 17:52:06,219 INFO L933 BasicCegarLoop]: 3156 mSDtfsCounter, 2089 mSDsluCounter, 12172 mSDsCounter, 0 mSdLazyCounter, 2800 mSolverCounterSat, 6 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2093 SdHoareTripleChecker+Valid, 14074 SdHoareTripleChecker+Invalid, 2811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2800 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.8s IncrementalHoareTripleChecker+Time [2021-11-25 17:52:06,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2093 Valid, 14074 Invalid, 2811 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 2800 Invalid, 5 Unknown, 0 Unchecked, 22.8s Time] [2021-11-25 17:52:06,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17757 states. [2021-11-25 17:52:07,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17757 to 17727. [2021-11-25 17:52:07,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17727 states, 10467 states have (on average 1.2719977070793924) internal successors, (13314), 10884 states have internal predecessors, (13314), 5885 states have call successors, (5885), 1416 states have call predecessors, (5885), 1374 states have return successors, (6052), 5678 states have call predecessors, (6052), 5885 states have call successors, (6052) [2021-11-25 17:52:07,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17727 states to 17727 states and 25251 transitions. [2021-11-25 17:52:07,454 INFO L78 Accepts]: Start accepts. Automaton has 17727 states and 25251 transitions. Word has length 297 [2021-11-25 17:52:07,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:52:07,455 INFO L470 AbstractCegarLoop]: Abstraction has 17727 states and 25251 transitions. [2021-11-25 17:52:07,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-25 17:52:07,455 INFO L276 IsEmpty]: Start isEmpty. Operand 17727 states and 25251 transitions. [2021-11-25 17:52:07,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2021-11-25 17:52:07,503 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:52:07,503 INFO L514 BasicCegarLoop]: trace histogram [21, 15, 15, 15, 15, 15, 15, 10, 10, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:52:07,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 17:52:07,504 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:52:07,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:52:07,505 INFO L85 PathProgramCache]: Analyzing trace with hash -541505304, now seen corresponding path program 1 times [2021-11-25 17:52:07,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:52:07,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435166770] [2021-11-25 17:52:07,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:52:07,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:52:07,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:52:07,929 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1249 trivial. 0 not checked. [2021-11-25 17:52:07,929 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:52:07,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435166770] [2021-11-25 17:52:07,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435166770] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:52:07,930 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:52:07,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 17:52:07,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317758342] [2021-11-25 17:52:07,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:52:07,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 17:52:07,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:52:07,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 17:52:07,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:52:07,933 INFO L87 Difference]: Start difference. First operand 17727 states and 25251 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 2 states have call successors, (58), 2 states have call predecessors, (58), 3 states have return successors, (54), 3 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-25 17:52:12,780 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:52:16,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:52:19,182 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:52:19,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:52:19,410 INFO L93 Difference]: Finished difference Result 35306 states and 50459 transitions. [2021-11-25 17:52:19,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 17:52:19,411 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 2 states have call successors, (58), 2 states have call predecessors, (58), 3 states have return successors, (54), 3 states have call predecessors, (54), 2 states have call successors, (54) Word has length 404 [2021-11-25 17:52:19,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:52:19,507 INFO L225 Difference]: With dead ends: 35306 [2021-11-25 17:52:19,507 INFO L226 Difference]: Without dead ends: 17787 [2021-11-25 17:52:19,564 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:52:19,565 INFO L933 BasicCegarLoop]: 2606 mSDtfsCounter, 19 mSDsluCounter, 8726 mSDsCounter, 0 mSdLazyCounter, 1262 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 10393 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1262 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2021-11-25 17:52:19,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 10393 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1262 Invalid, 3 Unknown, 0 Unchecked, 10.6s Time] [2021-11-25 17:52:19,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17787 states. [2021-11-25 17:52:20,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17787 to 17767. [2021-11-25 17:52:20,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17767 states, 10497 states have (on average 1.271220348671049) internal successors, (13344), 10914 states have internal predecessors, (13344), 5885 states have call successors, (5885), 1416 states have call predecessors, (5885), 1384 states have return successors, (6088), 5688 states have call predecessors, (6088), 5885 states have call successors, (6088) [2021-11-25 17:52:20,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17767 states to 17767 states and 25317 transitions. [2021-11-25 17:52:20,862 INFO L78 Accepts]: Start accepts. Automaton has 17767 states and 25317 transitions. Word has length 404 [2021-11-25 17:52:20,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:52:20,863 INFO L470 AbstractCegarLoop]: Abstraction has 17767 states and 25317 transitions. [2021-11-25 17:52:20,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 2 states have call successors, (58), 2 states have call predecessors, (58), 3 states have return successors, (54), 3 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-25 17:52:20,863 INFO L276 IsEmpty]: Start isEmpty. Operand 17767 states and 25317 transitions. [2021-11-25 17:52:20,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2021-11-25 17:52:20,919 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:52:20,920 INFO L514 BasicCegarLoop]: trace histogram [21, 15, 15, 15, 15, 15, 15, 10, 10, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:52:20,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 17:52:20,920 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:52:20,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:52:20,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1976405911, now seen corresponding path program 1 times [2021-11-25 17:52:20,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:52:20,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421380401] [2021-11-25 17:52:20,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:52:20,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:52:21,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:52:21,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1263 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1263 trivial. 0 not checked. [2021-11-25 17:52:21,285 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:52:21,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421380401] [2021-11-25 17:52:21,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421380401] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:52:21,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:52:21,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:52:21,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109180528] [2021-11-25 17:52:21,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:52:21,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:52:21,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:52:21,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:52:21,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:52:21,288 INFO L87 Difference]: Start difference. First operand 17767 states and 25317 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2021-11-25 17:52:24,893 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:52:26,219 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:52:29,994 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:52:32,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:52:32,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:52:32,460 INFO L93 Difference]: Finished difference Result 35416 states and 51240 transitions. [2021-11-25 17:52:32,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:52:32,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) Word has length 419 [2021-11-25 17:52:32,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:52:32,553 INFO L225 Difference]: With dead ends: 35416 [2021-11-25 17:52:32,554 INFO L226 Difference]: Without dead ends: 17857 [2021-11-25 17:52:32,624 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 17:52:32,625 INFO L933 BasicCegarLoop]: 2605 mSDtfsCounter, 4 mSDsluCounter, 2905 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 5198 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2021-11-25 17:52:32,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 5198 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 629 Invalid, 2 Unknown, 0 Unchecked, 10.3s Time] [2021-11-25 17:52:32,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17857 states. [2021-11-25 17:52:33,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17857 to 17837. [2021-11-25 17:52:33,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17837 states, 10547 states have (on average 1.270882715464113) internal successors, (13404), 10964 states have internal predecessors, (13404), 5905 states have call successors, (5905), 1416 states have call predecessors, (5905), 1384 states have return successors, (6108), 5708 states have call predecessors, (6108), 5905 states have call successors, (6108) [2021-11-25 17:52:33,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17837 states to 17837 states and 25417 transitions. [2021-11-25 17:52:33,960 INFO L78 Accepts]: Start accepts. Automaton has 17837 states and 25417 transitions. Word has length 419 [2021-11-25 17:52:33,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:52:33,961 INFO L470 AbstractCegarLoop]: Abstraction has 17837 states and 25417 transitions. [2021-11-25 17:52:33,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2021-11-25 17:52:33,961 INFO L276 IsEmpty]: Start isEmpty. Operand 17837 states and 25417 transitions. [2021-11-25 17:52:34,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2021-11-25 17:52:34,021 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:52:34,021 INFO L514 BasicCegarLoop]: trace histogram [21, 15, 15, 15, 15, 15, 15, 14, 14, 6, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:52:34,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 17:52:34,022 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:52:34,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:52:34,023 INFO L85 PathProgramCache]: Analyzing trace with hash -142542598, now seen corresponding path program 1 times [2021-11-25 17:52:34,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:52:34,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136052936] [2021-11-25 17:52:34,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:52:34,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:52:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:52:35,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1411 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1408 trivial. 0 not checked. [2021-11-25 17:52:35,482 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:52:35,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136052936] [2021-11-25 17:52:35,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136052936] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:52:35,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:52:35,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-25 17:52:35,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315044949] [2021-11-25 17:52:35,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:52:35,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 17:52:35,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:52:35,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 17:52:35,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-25 17:52:35,486 INFO L87 Difference]: Start difference. First operand 17837 states and 25417 transitions. Second operand has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 states have internal predecessors, (124), 6 states have call successors, (60), 4 states have call predecessors, (60), 4 states have return successors, (56), 7 states have call predecessors, (56), 6 states have call successors, (56) [2021-11-25 17:52:38,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:52:41,762 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:52:43,040 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:52:45,611 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:52:49,072 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:02,876 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:09,455 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:14,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:22,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:22,751 INFO L93 Difference]: Finished difference Result 68522 states and 98316 transitions. [2021-11-25 17:53:22,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-25 17:53:22,752 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 states have internal predecessors, (124), 6 states have call successors, (60), 4 states have call predecessors, (60), 4 states have return successors, (56), 7 states have call predecessors, (56), 6 states have call successors, (56) Word has length 419 [2021-11-25 17:53:22,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:23,260 INFO L225 Difference]: With dead ends: 68522 [2021-11-25 17:53:23,260 INFO L226 Difference]: Without dead ends: 68520 [2021-11-25 17:53:23,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=132, Invalid=468, Unknown=0, NotChecked=0, Total=600 [2021-11-25 17:53:23,297 INFO L933 BasicCegarLoop]: 5740 mSDtfsCounter, 12930 mSDsluCounter, 35280 mSDsCounter, 0 mSdLazyCounter, 11667 mSolverCounterSat, 5606 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13008 SdHoareTripleChecker+Valid, 37570 SdHoareTripleChecker+Invalid, 17279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5606 IncrementalHoareTripleChecker+Valid, 11667 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.6s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:23,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13008 Valid, 37570 Invalid, 17279 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5606 Valid, 11667 Invalid, 6 Unknown, 0 Unchecked, 43.6s Time] [2021-11-25 17:53:23,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68520 states. [2021-11-25 17:53:26,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68520 to 68377. [2021-11-25 17:53:27,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68377 states, 40392 states have (on average 1.2701277480689246) internal successors, (51303), 42067 states have internal predecessors, (51303), 22480 states have call successors, (22480), 5674 states have call predecessors, (22480), 5504 states have return successors, (24316), 21532 states have call predecessors, (24316), 22480 states have call successors, (24316) [2021-11-25 17:53:27,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68377 states to 68377 states and 98099 transitions. [2021-11-25 17:53:27,824 INFO L78 Accepts]: Start accepts. Automaton has 68377 states and 98099 transitions. Word has length 419 [2021-11-25 17:53:27,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:27,825 INFO L470 AbstractCegarLoop]: Abstraction has 68377 states and 98099 transitions. [2021-11-25 17:53:27,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 states have internal predecessors, (124), 6 states have call successors, (60), 4 states have call predecessors, (60), 4 states have return successors, (56), 7 states have call predecessors, (56), 6 states have call successors, (56) [2021-11-25 17:53:27,825 INFO L276 IsEmpty]: Start isEmpty. Operand 68377 states and 98099 transitions. [2021-11-25 17:53:28,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2021-11-25 17:53:28,096 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:28,096 INFO L514 BasicCegarLoop]: trace histogram [24, 15, 15, 15, 15, 15, 15, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:53:28,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 17:53:28,097 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:53:28,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:28,098 INFO L85 PathProgramCache]: Analyzing trace with hash 83249727, now seen corresponding path program 1 times [2021-11-25 17:53:28,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:28,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984686423] [2021-11-25 17:53:28,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:28,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:28,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:28,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1568 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 1490 trivial. 0 not checked. [2021-11-25 17:53:28,362 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:28,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984686423] [2021-11-25 17:53:28,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984686423] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:28,363 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:28,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:53:28,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857486896] [2021-11-25 17:53:28,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:28,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:53:28,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:28,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:53:28,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:53:28,365 INFO L87 Difference]: Start difference. First operand 68377 states and 98099 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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) [2021-11-25 17:53:32,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:38,473 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:40,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:42,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:42,573 INFO L93 Difference]: Finished difference Result 151878 states and 217820 transitions. [2021-11-25 17:53:42,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:53:42,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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) Word has length 435 [2021-11-25 17:53:42,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:43,117 INFO L225 Difference]: With dead ends: 151878 [2021-11-25 17:53:43,117 INFO L226 Difference]: Without dead ends: 83709 [2021-11-25 17:53:43,332 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 17:53:43,332 INFO L933 BasicCegarLoop]: 4774 mSDtfsCounter, 2431 mSDsluCounter, 2842 mSDsCounter, 0 mSdLazyCounter, 944 mSolverCounterSat, 15 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2436 SdHoareTripleChecker+Valid, 7319 SdHoareTripleChecker+Invalid, 962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 944 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:43,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2436 Valid, 7319 Invalid, 962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 944 Invalid, 3 Unknown, 0 Unchecked, 10.2s Time] [2021-11-25 17:53:43,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83709 states. [2021-11-25 17:53:47,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83709 to 83659. [2021-11-25 17:53:47,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83659 states, 49515 states have (on average 1.2695344844996466) internal successors, (62861), 51585 states have internal predecessors, (62861), 27356 states have call successors, (27356), 6989 states have call predecessors, (27356), 6787 states have return successors, (29571), 26197 states have call predecessors, (29571), 27356 states have call successors, (29571) [2021-11-25 17:53:48,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83659 states to 83659 states and 119788 transitions. [2021-11-25 17:53:48,159 INFO L78 Accepts]: Start accepts. Automaton has 83659 states and 119788 transitions. Word has length 435 [2021-11-25 17:53:48,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:48,161 INFO L470 AbstractCegarLoop]: Abstraction has 83659 states and 119788 transitions. [2021-11-25 17:53:48,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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) [2021-11-25 17:53:48,161 INFO L276 IsEmpty]: Start isEmpty. Operand 83659 states and 119788 transitions. [2021-11-25 17:53:48,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2021-11-25 17:53:48,287 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:48,288 INFO L514 BasicCegarLoop]: trace histogram [24, 18, 18, 15, 15, 15, 15, 15, 15, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:53:48,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-25 17:53:48,289 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:53:48,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:48,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1246648446, now seen corresponding path program 1 times [2021-11-25 17:53:48,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:48,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807013672] [2021-11-25 17:53:48,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:48,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:48,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:48,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1819 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1797 trivial. 0 not checked. [2021-11-25 17:53:48,734 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:48,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807013672] [2021-11-25 17:53:48,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807013672] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:48,735 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:48,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:53:48,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353378398] [2021-11-25 17:53:48,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:48,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:53:48,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:48,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:53:48,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:53:48,738 INFO L87 Difference]: Start difference. First operand 83659 states and 119788 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) [2021-11-25 17:53:51,674 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:53,934 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:59,323 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:01,735 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:03,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:54:03,164 INFO L93 Difference]: Finished difference Result 146903 states and 210387 transitions. [2021-11-25 17:54:03,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:54:03,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) Word has length 497 [2021-11-25 17:54:03,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:54:03,814 INFO L225 Difference]: With dead ends: 146903 [2021-11-25 17:54:03,814 INFO L226 Difference]: Without dead ends: 94591 [2021-11-25 17:54:03,946 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 17:54:03,947 INFO L933 BasicCegarLoop]: 4595 mSDtfsCounter, 2600 mSDsluCounter, 2860 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 15 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2609 SdHoareTripleChecker+Valid, 7159 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:54:03,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2609 Valid, 7159 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 872 Invalid, 4 Unknown, 0 Unchecked, 10.4s Time] [2021-11-25 17:54:04,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94591 states. [2021-11-25 17:54:08,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94591 to 94255. [2021-11-25 17:54:08,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94255 states, 55789 states have (on average 1.269927763537615) internal successors, (70848), 58105 states have internal predecessors, (70848), 30815 states have call successors, (30815), 7874 states have call predecessors, (30815), 7650 states have return successors, (33219), 29506 states have call predecessors, (33219), 30815 states have call successors, (33219) [2021-11-25 17:54:08,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94255 states to 94255 states and 134882 transitions. [2021-11-25 17:54:08,622 INFO L78 Accepts]: Start accepts. Automaton has 94255 states and 134882 transitions. Word has length 497 [2021-11-25 17:54:08,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:54:08,623 INFO L470 AbstractCegarLoop]: Abstraction has 94255 states and 134882 transitions. [2021-11-25 17:54:08,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) [2021-11-25 17:54:08,623 INFO L276 IsEmpty]: Start isEmpty. Operand 94255 states and 134882 transitions. [2021-11-25 17:54:08,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2021-11-25 17:54:08,701 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:54:08,701 INFO L514 BasicCegarLoop]: trace histogram [21, 16, 16, 15, 15, 15, 15, 15, 15, 8, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:54:08,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-25 17:54:08,702 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:54:08,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:54:08,702 INFO L85 PathProgramCache]: Analyzing trace with hash 741442403, now seen corresponding path program 1 times [2021-11-25 17:54:08,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:54:08,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486920193] [2021-11-25 17:54:08,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:54:08,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:54:09,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:54:10,435 INFO L134 CoverageAnalysis]: Checked inductivity of 1538 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1535 trivial. 0 not checked. [2021-11-25 17:54:10,436 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:54:10,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486920193] [2021-11-25 17:54:10,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486920193] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:54:10,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:54:10,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-25 17:54:10,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121222897] [2021-11-25 17:54:10,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:54:10,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-25 17:54:10,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:54:10,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-25 17:54:10,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-11-25 17:54:10,440 INFO L87 Difference]: Start difference. First operand 94255 states and 134882 transitions. Second operand has 12 states, 11 states have (on average 12.363636363636363) internal successors, (136), 11 states have internal predecessors, (136), 8 states have call successors, (70), 4 states have call predecessors, (70), 5 states have return successors, (66), 9 states have call predecessors, (66), 8 states have call successors, (66) [2021-11-25 17:54:15,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:17,227 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:21,473 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:30,862 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:36,989 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:41,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:46,134 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:48,162 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:54,581 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:55:00,073 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:55:11,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:55:17,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:55:17,507 INFO L93 Difference]: Finished difference Result 143794 states and 205412 transitions. [2021-11-25 17:55:17,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-11-25 17:55:17,508 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 12.363636363636363) internal successors, (136), 11 states have internal predecessors, (136), 8 states have call successors, (70), 4 states have call predecessors, (70), 5 states have return successors, (66), 9 states have call predecessors, (66), 8 states have call successors, (66) Word has length 460 [2021-11-25 17:55:17,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:55:18,360 INFO L225 Difference]: With dead ends: 143794 [2021-11-25 17:55:18,360 INFO L226 Difference]: Without dead ends: 143792 [2021-11-25 17:55:18,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=317, Invalid=1323, Unknown=0, NotChecked=0, Total=1640 [2021-11-25 17:55:18,419 INFO L933 BasicCegarLoop]: 7022 mSDtfsCounter, 20849 mSDsluCounter, 48656 mSDsCounter, 0 mSdLazyCounter, 10808 mSolverCounterSat, 15660 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20929 SdHoareTripleChecker+Valid, 51282 SdHoareTripleChecker+Invalid, 26475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 15660 IncrementalHoareTripleChecker+Valid, 10808 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.2s IncrementalHoareTripleChecker+Time [2021-11-25 17:55:18,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20929 Valid, 51282 Invalid, 26475 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [15660 Valid, 10808 Invalid, 7 Unknown, 0 Unchecked, 59.2s Time] [2021-11-25 17:55:18,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143792 states. [2021-11-25 17:55:25,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143792 to 143510. [2021-11-25 17:55:25,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143510 states, 84737 states have (on average 1.2682299349752764) internal successors, (107466), 88235 states have internal predecessors, (107466), 46878 states have call successors, (46878), 12176 states have call predecessors, (46878), 11894 states have return successors, (50613), 45010 states have call predecessors, (50613), 46878 states have call successors, (50613)