./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9b1c52b-c561-46bd-a6b3-cb72cd6c2e7b/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9b1c52b-c561-46bd-a6b3-cb72cd6c2e7b/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9b1c52b-c561-46bd-a6b3-cb72cd6c2e7b/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9b1c52b-c561-46bd-a6b3-cb72cd6c2e7b/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9b1c52b-c561-46bd-a6b3-cb72cd6c2e7b/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9b1c52b-c561-46bd-a6b3-cb72cd6c2e7b/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 10bb499b72e5e53415f4b388a6311d98c8f62bfee9e49e4ef36d0afd6a3d07fa --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 00:32:49,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:32:49,647 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:32:49,666 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:32:49,667 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:32:49,668 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:32:49,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:32:49,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:32:49,674 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:32:49,675 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:32:49,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:32:49,678 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:32:49,679 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:32:49,680 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:32:49,681 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:32:49,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:32:49,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:32:49,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:32:49,687 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:32:49,689 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:32:49,691 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:32:49,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:32:49,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:32:49,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:32:49,699 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:32:49,699 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:32:49,700 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:32:49,701 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:32:49,701 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:32:49,702 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:32:49,703 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:32:49,704 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:32:49,705 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:32:49,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:32:49,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:32:49,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:32:49,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:32:49,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:32:49,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:32:49,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:32:49,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:32:49,712 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9b1c52b-c561-46bd-a6b3-cb72cd6c2e7b/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 00:32:49,737 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:32:49,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:32:49,738 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:32:49,738 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:32:49,739 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:32:49,740 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:32:49,740 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:32:49,741 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:32:49,741 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:32:49,741 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:32:49,742 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:32:49,742 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:32:49,742 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:32:49,743 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:32:49,743 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:32:49,743 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:32:49,744 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:32:49,744 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:32:49,745 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:32:49,745 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:32:49,745 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:32:49,746 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:32:49,746 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:32:49,746 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:32:49,746 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:32:49,747 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:32:49,747 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:32:49,747 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:32:49,747 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:32:49,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:32:49,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:32:49,748 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:32:49,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:32:49,749 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:32:49,749 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:32:49,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:32:49,749 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:32:49,750 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:32:49,750 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9b1c52b-c561-46bd-a6b3-cb72cd6c2e7b/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9b1c52b-c561-46bd-a6b3-cb72cd6c2e7b/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10bb499b72e5e53415f4b388a6311d98c8f62bfee9e49e4ef36d0afd6a3d07fa [2022-11-22 00:32:50,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:32:50,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:32:50,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:32:50,085 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:32:50,086 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:32:50,087 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9b1c52b-c561-46bd-a6b3-cb72cd6c2e7b/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2022-11-22 00:32:53,154 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:32:54,044 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:32:54,045 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9b1c52b-c561-46bd-a6b3-cb72cd6c2e7b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2022-11-22 00:32:54,102 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9b1c52b-c561-46bd-a6b3-cb72cd6c2e7b/bin/utaipan-g80aRyZoba/data/190de5e21/bf34d2afb4c648d19b4def53f2ad1871/FLAGd69697096 [2022-11-22 00:32:54,118 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9b1c52b-c561-46bd-a6b3-cb72cd6c2e7b/bin/utaipan-g80aRyZoba/data/190de5e21/bf34d2afb4c648d19b4def53f2ad1871 [2022-11-22 00:32:54,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:32:54,126 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:32:54,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:32:54,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:32:54,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:32:54,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:32:54" (1/1) ... [2022-11-22 00:32:54,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5acf5f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:54, skipping insertion in model container [2022-11-22 00:32:54,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:32:54" (1/1) ... [2022-11-22 00:32:54,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:32:54,347 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:32:59,557 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9b1c52b-c561-46bd-a6b3-cb72cd6c2e7b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446625,446638] [2022-11-22 00:32:59,562 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9b1c52b-c561-46bd-a6b3-cb72cd6c2e7b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446770,446783] [2022-11-22 00:32:59,597 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:32:59,677 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:33:00,320 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9b1c52b-c561-46bd-a6b3-cb72cd6c2e7b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446625,446638] [2022-11-22 00:33:00,321 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9b1c52b-c561-46bd-a6b3-cb72cd6c2e7b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446770,446783] [2022-11-22 00:33:00,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:33:00,727 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:33:00,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:33:00 WrapperNode [2022-11-22 00:33:00,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:33:00,729 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:33:00,729 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:33:00,729 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:33:00,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:33:00" (1/1) ... [2022-11-22 00:33:00,880 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:33:00" (1/1) ... [2022-11-22 00:33:01,236 INFO L138 Inliner]: procedures = 661, calls = 4756, calls flagged for inlining = 357, calls inlined = 344, statements flattened = 10478 [2022-11-22 00:33:01,238 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:33:01,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:33:01,239 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:33:01,239 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:33:01,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:33:00" (1/1) ... [2022-11-22 00:33:01,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:33:00" (1/1) ... [2022-11-22 00:33:01,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:33:00" (1/1) ... [2022-11-22 00:33:01,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:33:00" (1/1) ... [2022-11-22 00:33:01,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:33:00" (1/1) ... [2022-11-22 00:33:01,795 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:33:00" (1/1) ... [2022-11-22 00:33:01,852 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:33:00" (1/1) ... [2022-11-22 00:33:01,890 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:33:00" (1/1) ... [2022-11-22 00:33:02,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:33:02,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:33:02,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:33:02,020 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:33:02,021 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:33:00" (1/1) ... [2022-11-22 00:33:02,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:33:02,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9b1c52b-c561-46bd-a6b3-cb72cd6c2e7b/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:33:02,056 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9b1c52b-c561-46bd-a6b3-cb72cd6c2e7b/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:33:02,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9b1c52b-c561-46bd-a6b3-cb72cd6c2e7b/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:33:02,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 00:33:02,112 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 00:33:02,112 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-22 00:33:02,113 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-22 00:33:02,113 INFO L130 BoogieDeclarations]: Found specification of procedure hw_del_addr [2022-11-22 00:33:02,113 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_del_addr [2022-11-22 00:33:02,113 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-22 00:33:02,113 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-22 00:33:02,113 INFO L130 BoogieDeclarations]: Found specification of procedure hw_cfg_wol [2022-11-22 00:33:02,114 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_cfg_wol [2022-11-22 00:33:02,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 00:33:02,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 00:33:02,114 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-11-22 00:33:02,114 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-11-22 00:33:02,114 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_init [2022-11-22 00:33:02,115 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_init [2022-11-22 00:33:02,115 INFO L130 BoogieDeclarations]: Found specification of procedure hw_ack_intr [2022-11-22 00:33:02,115 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_ack_intr [2022-11-22 00:33:02,115 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_tx_timeout [2022-11-22 00:33:02,115 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_tx_timeout [2022-11-22 00:33:02,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_87 [2022-11-22 00:33:02,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_87 [2022-11-22 00:33:02,116 INFO L130 BoogieDeclarations]: Found specification of procedure bridge_change [2022-11-22 00:33:02,117 INFO L138 BoogieDeclarations]: Found implementation of procedure bridge_change [2022-11-22 00:33:02,117 INFO L130 BoogieDeclarations]: Found specification of procedure set_flow_ctrl [2022-11-22 00:33:02,117 INFO L138 BoogieDeclarations]: Found implementation of procedure set_flow_ctrl [2022-11-22 00:33:02,118 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 00:33:02,118 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 00:33:02,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_pci_device_driver_exit_14_2 [2022-11-22 00:33:02,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_pci_device_driver_exit_14_2 [2022-11-22 00:33:02,119 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-11-22 00:33:02,119 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-11-22 00:33:02,119 INFO L130 BoogieDeclarations]: Found specification of procedure set_tx_len [2022-11-22 00:33:02,119 INFO L138 BoogieDeclarations]: Found implementation of procedure set_tx_len [2022-11-22 00:33:02,120 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_check_desc_num [2022-11-22 00:33:02,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_check_desc_num [2022-11-22 00:33:02,120 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-22 00:33:02,120 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-22 00:33:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 00:33:02,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 00:33:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-22 00:33:02,121 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-22 00:33:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-22 00:33:02,121 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-22 00:33:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure set_media_state [2022-11-22 00:33:02,122 INFO L138 BoogieDeclarations]: Found implementation of procedure set_media_state [2022-11-22 00:33:02,122 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-22 00:33:02,123 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-22 00:33:02,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 00:33:02,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 00:33:02,123 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-22 00:33:02,123 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-22 00:33:02,124 INFO L130 BoogieDeclarations]: Found specification of procedure hw_ena_intr [2022-11-22 00:33:02,124 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_ena_intr [2022-11-22 00:33:02,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:33:02,124 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-22 00:33:02,124 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-22 00:33:02,124 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-11-22 00:33:02,125 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-11-22 00:33:02,125 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-11-22 00:33:02,125 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-11-22 00:33:02,125 INFO L130 BoogieDeclarations]: Found specification of procedure port_cfg [2022-11-22 00:33:02,126 INFO L138 BoogieDeclarations]: Found implementation of procedure port_cfg [2022-11-22 00:33:02,126 INFO L130 BoogieDeclarations]: Found specification of procedure state_gpio [2022-11-22 00:33:02,126 INFO L138 BoogieDeclarations]: Found implementation of procedure state_gpio [2022-11-22 00:33:02,126 INFO L130 BoogieDeclarations]: Found specification of procedure hw_dis_intr [2022-11-22 00:33:02,126 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_dis_intr [2022-11-22 00:33:02,126 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_read [2022-11-22 00:33:02,127 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_read [2022-11-22 00:33:02,128 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 00:33:02,128 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 00:33:02,128 INFO L130 BoogieDeclarations]: Found specification of procedure pcidev_resume [2022-11-22 00:33:02,129 INFO L138 BoogieDeclarations]: Found implementation of procedure pcidev_resume [2022-11-22 00:33:02,129 INFO L130 BoogieDeclarations]: Found specification of procedure hw_dis_intr_bit [2022-11-22 00:33:02,129 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_dis_intr_bit [2022-11-22 00:33:02,129 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_eeprom_len [2022-11-22 00:33:02,130 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_eeprom_len [2022-11-22 00:33:02,130 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_free_buffers [2022-11-22 00:33:02,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_free_buffers [2022-11-22 00:33:02,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 00:33:02,131 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_clk [2022-11-22 00:33:02,131 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_clk [2022-11-22 00:33:02,131 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 00:33:02,132 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 00:33:02,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 00:33:02,132 INFO L130 BoogieDeclarations]: Found specification of procedure hw_reset [2022-11-22 00:33:02,132 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_reset [2022-11-22 00:33:02,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 00:33:02,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 00:33:02,133 INFO L130 BoogieDeclarations]: Found specification of procedure rx_proc [2022-11-22 00:33:02,134 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_proc [2022-11-22 00:33:02,134 INFO L130 BoogieDeclarations]: Found specification of procedure release_desc [2022-11-22 00:33:02,134 INFO L138 BoogieDeclarations]: Found implementation of procedure release_desc [2022-11-22 00:33:02,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 00:33:02,134 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-22 00:33:02,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-22 00:33:02,134 INFO L130 BoogieDeclarations]: Found specification of procedure hw_resume_rx [2022-11-22 00:33:02,135 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_resume_rx [2022-11-22 00:33:02,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 00:33:02,135 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 00:33:02,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-22 00:33:02,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-22 00:33:02,136 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_netpoll [2022-11-22 00:33:02,136 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_netpoll [2022-11-22 00:33:02,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 00:33:02,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 00:33:02,136 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-11-22 00:33:02,137 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-11-22 00:33:02,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 00:33:02,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 00:33:02,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-22 00:33:02,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-22 00:33:02,142 INFO L130 BoogieDeclarations]: Found specification of procedure hw_ena_add_addr [2022-11-22 00:33:02,143 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_ena_add_addr [2022-11-22 00:33:02,144 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-11-22 00:33:02,145 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-11-22 00:33:02,145 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_grp_addr [2022-11-22 00:33:02,145 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_grp_addr [2022-11-22 00:33:02,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 00:33:02,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-22 00:33:02,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-22 00:33:02,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-22 00:33:02,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-22 00:33:02,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:33:02,152 INFO L130 BoogieDeclarations]: Found specification of procedure sw_w_sta_mac_table [2022-11-22 00:33:02,152 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_w_sta_mac_table [2022-11-22 00:33:02,152 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2022-11-22 00:33:02,152 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2022-11-22 00:33:02,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 00:33:02,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 00:33:02,153 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 00:33:02,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 00:33:02,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 00:33:02,153 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 00:33:02,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 00:33:02,153 INFO L130 BoogieDeclarations]: Found specification of procedure hw_stop_rx [2022-11-22 00:33:02,153 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_stop_rx [2022-11-22 00:33:02,154 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_intr [2022-11-22 00:33:02,154 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_intr [2022-11-22 00:33:02,154 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 00:33:02,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 00:33:02,154 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-11-22 00:33:02,154 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-11-22 00:33:02,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-22 00:33:02,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-22 00:33:02,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-22 00:33:02,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-22 00:33:02,155 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_init_rx_buffers [2022-11-22 00:33:02,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_init_rx_buffers [2022-11-22 00:33:02,155 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_free_mem [2022-11-22 00:33:02,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_free_mem [2022-11-22 00:33:02,156 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 00:33:02,156 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 00:33:02,156 INFO L130 BoogieDeclarations]: Found specification of procedure hw_w_phy [2022-11-22 00:33:02,156 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_w_phy [2022-11-22 00:33:02,156 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-22 00:33:02,156 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-22 00:33:02,156 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-22 00:33:02,156 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-22 00:33:02,157 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-11-22 00:33:02,157 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-11-22 00:33:02,157 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_set_rx_mode [2022-11-22 00:33:02,157 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_set_rx_mode [2022-11-22 00:33:02,158 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-11-22 00:33:02,158 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-11-22 00:33:02,158 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-22 00:33:02,158 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-22 00:33:02,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:33:02,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:33:02,158 INFO L130 BoogieDeclarations]: Found specification of procedure transmit_cleanup [2022-11-22 00:33:02,159 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit_cleanup [2022-11-22 00:33:02,159 INFO L130 BoogieDeclarations]: Found specification of procedure hw_r_phy [2022-11-22 00:33:02,159 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_r_phy [2022-11-22 00:33:02,159 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_addr [2022-11-22 00:33:02,159 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_addr [2022-11-22 00:33:02,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 00:33:02,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 00:33:02,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 00:33:02,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 00:33:02,160 INFO L130 BoogieDeclarations]: Found specification of procedure get_tx_pkt [2022-11-22 00:33:02,160 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tx_pkt [2022-11-22 00:33:02,160 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2022-11-22 00:33:02,160 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2022-11-22 00:33:02,160 INFO L130 BoogieDeclarations]: Found specification of procedure port_get_link_speed [2022-11-22 00:33:02,160 INFO L138 BoogieDeclarations]: Found implementation of procedure port_get_link_speed [2022-11-22 00:33:02,161 INFO L130 BoogieDeclarations]: Found specification of procedure port_r16 [2022-11-22 00:33:02,161 INFO L138 BoogieDeclarations]: Found implementation of procedure port_r16 [2022-11-22 00:33:02,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_hwlock_of_dev_info [2022-11-22 00:33:02,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_hwlock_of_dev_info [2022-11-22 00:33:02,161 INFO L130 BoogieDeclarations]: Found specification of procedure sw_cfg_port_base_vlan [2022-11-22 00:33:02,161 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_cfg_port_base_vlan [2022-11-22 00:33:02,161 INFO L130 BoogieDeclarations]: Found specification of procedure drop_gpio [2022-11-22 00:33:02,161 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_gpio [2022-11-22 00:33:02,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-22 00:33:02,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-22 00:33:02,162 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_desc_base [2022-11-22 00:33:02,162 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_desc_base [2022-11-22 00:33:02,162 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-22 00:33:02,162 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-22 00:33:02,162 INFO L130 BoogieDeclarations]: Found specification of procedure hw_block_intr [2022-11-22 00:33:02,163 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_block_intr [2022-11-22 00:33:02,163 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-22 00:33:02,163 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-22 00:33:02,163 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2022-11-22 00:33:02,163 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2022-11-22 00:33:02,163 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_network_header [2022-11-22 00:33:02,163 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_network_header [2022-11-22 00:33:02,164 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_init_timer [2022-11-22 00:33:02,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_init_timer [2022-11-22 00:33:02,164 INFO L130 BoogieDeclarations]: Found specification of procedure hw_reset_pkts [2022-11-22 00:33:02,164 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_reset_pkts [2022-11-22 00:33:02,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 00:33:02,164 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 00:33:02,164 INFO L130 BoogieDeclarations]: Found specification of procedure hw_disable [2022-11-22 00:33:02,164 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_disable [2022-11-22 00:33:02,165 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-22 00:33:02,165 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-22 00:33:02,165 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-11-22 00:33:02,165 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-11-22 00:33:02,165 INFO L130 BoogieDeclarations]: Found specification of procedure get_mac_addr [2022-11-22 00:33:02,165 INFO L138 BoogieDeclarations]: Found implementation of procedure get_mac_addr [2022-11-22 00:33:02,165 INFO L130 BoogieDeclarations]: Found specification of procedure hw_restore_intr [2022-11-22 00:33:02,166 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_restore_intr [2022-11-22 00:33:02,166 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-22 00:33:02,166 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-22 00:33:02,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:33:02,166 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-22 00:33:02,166 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-22 00:33:02,166 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-22 00:33:02,167 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-22 00:33:02,167 INFO L130 BoogieDeclarations]: Found specification of procedure hw_start_rx [2022-11-22 00:33:02,167 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_start_rx [2022-11-22 00:33:02,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 00:33:02,167 INFO L130 BoogieDeclarations]: Found specification of procedure port_cfg_broad_storm [2022-11-22 00:33:02,167 INFO L138 BoogieDeclarations]: Found implementation of procedure port_cfg_broad_storm [2022-11-22 00:33:02,168 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-22 00:33:02,172 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-22 00:33:02,173 INFO L130 BoogieDeclarations]: Found specification of procedure hw_turn_on_intr [2022-11-22 00:33:02,173 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_turn_on_intr [2022-11-22 00:33:02,173 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-22 00:33:02,173 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-22 00:33:02,173 INFO L130 BoogieDeclarations]: Found specification of procedure sw_chk [2022-11-22 00:33:02,173 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_chk [2022-11-22 00:33:02,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_86 [2022-11-22 00:33:02,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_86 [2022-11-22 00:33:02,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 00:33:02,176 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_wol_frame [2022-11-22 00:33:02,176 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_wol_frame [2022-11-22 00:33:02,176 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-22 00:33:02,176 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-22 00:33:02,176 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-22 00:33:02,176 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-22 00:33:02,177 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 00:33:02,177 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 00:33:02,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 00:33:02,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 00:33:02,177 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-22 00:33:02,177 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-22 00:33:02,177 INFO L130 BoogieDeclarations]: Found specification of procedure port_r_mib_pkt [2022-11-22 00:33:02,178 INFO L138 BoogieDeclarations]: Found implementation of procedure port_r_mib_pkt [2022-11-22 00:33:02,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-22 00:33:02,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-22 00:33:02,178 INFO L130 BoogieDeclarations]: Found specification of procedure sw_cfg [2022-11-22 00:33:02,178 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_cfg [2022-11-22 00:33:02,178 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2022-11-22 00:33:02,178 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2022-11-22 00:33:02,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_hwlock_of_dev_info [2022-11-22 00:33:02,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_hwlock_of_dev_info [2022-11-22 00:33:02,179 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_update_timer [2022-11-22 00:33:02,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_update_timer [2022-11-22 00:33:02,179 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-22 00:33:02,179 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-22 00:33:02,179 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_free [2022-11-22 00:33:02,179 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_free [2022-11-22 00:33:02,180 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_stop_timer [2022-11-22 00:33:02,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_stop_timer [2022-11-22 00:33:02,180 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-22 00:33:02,180 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-22 00:33:02,180 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_intr [2022-11-22 00:33:02,180 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_intr [2022-11-22 00:33:02,180 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-22 00:33:02,181 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-22 00:33:02,181 INFO L130 BoogieDeclarations]: Found specification of procedure hw_add_addr [2022-11-22 00:33:02,181 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_add_addr [2022-11-22 00:33:02,181 INFO L130 BoogieDeclarations]: Found specification of procedure port_r_mib_cnt [2022-11-22 00:33:02,181 INFO L138 BoogieDeclarations]: Found implementation of procedure port_r_mib_cnt [2022-11-22 00:33:02,181 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma_buf [2022-11-22 00:33:02,181 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma_buf [2022-11-22 00:33:02,181 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-22 00:33:02,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-22 00:33:02,182 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 00:33:02,182 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 00:33:02,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:33:02,182 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_multicast [2022-11-22 00:33:02,182 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_multicast [2022-11-22 00:33:02,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 00:33:02,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 00:33:02,183 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_regs_len [2022-11-22 00:33:02,183 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_regs_len [2022-11-22 00:33:02,183 INFO L130 BoogieDeclarations]: Found specification of procedure hw_clr_multicast [2022-11-22 00:33:02,183 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_clr_multicast [2022-11-22 00:33:02,183 INFO L130 BoogieDeclarations]: Found specification of procedure port_set_link_speed [2022-11-22 00:33:02,183 INFO L138 BoogieDeclarations]: Found implementation of procedure port_set_link_speed [2022-11-22 00:33:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure raise_gpio [2022-11-22 00:33:02,184 INFO L138 BoogieDeclarations]: Found implementation of procedure raise_gpio [2022-11-22 00:33:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure port_w16 [2022-11-22 00:33:02,184 INFO L138 BoogieDeclarations]: Found implementation of procedure port_w16 [2022-11-22 00:33:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure empty_addr [2022-11-22 00:33:02,184 INFO L138 BoogieDeclarations]: Found implementation of procedure empty_addr [2022-11-22 00:33:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-22 00:33:02,185 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-22 00:33:02,185 INFO L130 BoogieDeclarations]: Found specification of procedure mib_read_work [2022-11-22 00:33:02,185 INFO L138 BoogieDeclarations]: Found implementation of procedure mib_read_work [2022-11-22 00:33:02,185 INFO L130 BoogieDeclarations]: Found specification of procedure hw_enable_wol [2022-11-22 00:33:02,185 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_enable_wol [2022-11-22 00:33:02,185 INFO L130 BoogieDeclarations]: Found specification of procedure port_set_stp_state [2022-11-22 00:33:02,185 INFO L138 BoogieDeclarations]: Found implementation of procedure port_set_stp_state [2022-11-22 00:33:02,185 INFO L130 BoogieDeclarations]: Found specification of procedure hw_clr_wol_pme_status [2022-11-22 00:33:02,186 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_clr_wol_pme_status [2022-11-22 00:33:02,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_95 [2022-11-22 00:33:02,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_95 [2022-11-22 00:33:02,186 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_start_timer [2022-11-22 00:33:02,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_start_timer [2022-11-22 00:33:02,186 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-11-22 00:33:02,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-11-22 00:33:02,187 INFO L130 BoogieDeclarations]: Found specification of procedure copy_old_skb [2022-11-22 00:33:02,187 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_old_skb [2022-11-22 00:33:02,187 INFO L130 BoogieDeclarations]: Found specification of procedure hw_cfg_wol_pme [2022-11-22 00:33:02,187 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_cfg_wol_pme [2022-11-22 00:33:02,187 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_buf [2022-11-22 00:33:02,187 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_buf [2022-11-22 00:33:02,187 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_network_header [2022-11-22 00:33:02,188 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_network_header [2022-11-22 00:33:02,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 00:33:02,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 00:33:02,188 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-22 00:33:02,188 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-22 00:33:02,188 INFO L130 BoogieDeclarations]: Found specification of procedure pcidev_exit [2022-11-22 00:33:02,188 INFO L138 BoogieDeclarations]: Found implementation of procedure pcidev_exit [2022-11-22 00:33:02,189 INFO L130 BoogieDeclarations]: Found specification of procedure hw_enable [2022-11-22 00:33:02,189 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_enable [2022-11-22 00:33:02,189 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_alloc_soft_desc [2022-11-22 00:33:02,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_alloc_soft_desc [2022-11-22 00:33:02,189 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-22 00:33:02,189 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-22 00:33:02,189 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-22 00:33:02,189 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-22 00:33:02,190 INFO L130 BoogieDeclarations]: Found specification of procedure sw_cfg_broad_storm [2022-11-22 00:33:02,190 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_cfg_broad_storm [2022-11-22 00:33:02,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:33:02,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 00:33:02,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 00:33:02,190 INFO L130 BoogieDeclarations]: Found specification of procedure port_set_power_saving [2022-11-22 00:33:02,190 INFO L138 BoogieDeclarations]: Found implementation of procedure port_set_power_saving [2022-11-22 00:33:02,191 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-11-22 00:33:02,191 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-11-22 00:33:02,191 INFO L130 BoogieDeclarations]: Found specification of procedure spi_reg [2022-11-22 00:33:02,191 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_reg [2022-11-22 00:33:03,817 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:33:03,826 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:33:07,410 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 00:33:24,661 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 00:33:24,861 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:33:28,214 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:33:28,214 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-22 00:33:28,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:33:28 BoogieIcfgContainer [2022-11-22 00:33:28,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:33:28,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:33:28,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:33:28,231 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:33:28,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:32:54" (1/3) ... [2022-11-22 00:33:28,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c2ee42f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:33:28, skipping insertion in model container [2022-11-22 00:33:28,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:33:00" (2/3) ... [2022-11-22 00:33:28,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c2ee42f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:33:28, skipping insertion in model container [2022-11-22 00:33:28,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:33:28" (3/3) ... [2022-11-22 00:33:28,237 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2022-11-22 00:33:28,263 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:33:28,263 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 00:33:28,411 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:33:28,422 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@13408df9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:33:28,423 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 00:33:28,440 INFO L276 IsEmpty]: Start isEmpty. Operand has 2319 states, 1383 states have (on average 1.314533622559653) internal successors, (1818), 1448 states have internal predecessors, (1818), 769 states have call successors, (769), 171 states have call predecessors, (769), 170 states have return successors, (763), 750 states have call predecessors, (763), 763 states have call successors, (763) [2022-11-22 00:33:28,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-11-22 00:33:28,500 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:33:28,501 INFO L195 NwaCegarLoop]: trace histogram [21, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:33:28,502 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:33:28,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:33:28,511 INFO L85 PathProgramCache]: Analyzing trace with hash -104596519, now seen corresponding path program 1 times [2022-11-22 00:33:28,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:33:28,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793296339] [2022-11-22 00:33:28,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:33:28,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:33:29,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:33:29,996 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1560 trivial. 0 not checked. [2022-11-22 00:33:29,997 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:33:29,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793296339] [2022-11-22 00:33:29,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793296339] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:33:29,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:33:29,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:33:30,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818337234] [2022-11-22 00:33:30,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:33:30,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:33:30,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:33:30,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:33:30,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:33:30,068 INFO L87 Difference]: Start difference. First operand has 2319 states, 1383 states have (on average 1.314533622559653) internal successors, (1818), 1448 states have internal predecessors, (1818), 769 states have call successors, (769), 171 states have call predecessors, (769), 170 states have return successors, (763), 750 states have call predecessors, (763), 763 states have call successors, (763) Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-22 00:33:34,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:33:42,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:33:42,442 INFO L93 Difference]: Finished difference Result 6369 states and 9222 transitions. [2022-11-22 00:33:42,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:33:42,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 244 [2022-11-22 00:33:42,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:33:42,501 INFO L225 Difference]: With dead ends: 6369 [2022-11-22 00:33:42,502 INFO L226 Difference]: Without dead ends: 4032 [2022-11-22 00:33:42,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:33:42,524 INFO L413 NwaCegarLoop]: 3376 mSDtfsCounter, 2532 mSDsluCounter, 2755 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2535 SdHoareTripleChecker+Valid, 6131 SdHoareTripleChecker+Invalid, 1115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-11-22 00:33:42,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2535 Valid, 6131 Invalid, 1115 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 1097 Invalid, 1 Unknown, 0 Unchecked, 11.9s Time] [2022-11-22 00:33:42,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4032 states. [2022-11-22 00:33:42,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4032 to 4029. [2022-11-22 00:33:42,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4029 states, 2422 states have (on average 1.3096614368290669) internal successors, (3172), 2532 states have internal predecessors, (3172), 1290 states have call successors, (1290), 316 states have call predecessors, (1290), 316 states have return successors, (1293), 1270 states have call predecessors, (1293), 1290 states have call successors, (1293) [2022-11-22 00:33:42,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4029 states to 4029 states and 5755 transitions. [2022-11-22 00:33:42,918 INFO L78 Accepts]: Start accepts. Automaton has 4029 states and 5755 transitions. Word has length 244 [2022-11-22 00:33:42,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:33:42,924 INFO L495 AbstractCegarLoop]: Abstraction has 4029 states and 5755 transitions. [2022-11-22 00:33:42,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-22 00:33:42,925 INFO L276 IsEmpty]: Start isEmpty. Operand 4029 states and 5755 transitions. [2022-11-22 00:33:42,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-11-22 00:33:42,968 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:33:42,969 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:33:42,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:33:42,970 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:33:42,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:33:42,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1464899157, now seen corresponding path program 1 times [2022-11-22 00:33:42,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:33:42,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152130655] [2022-11-22 00:33:42,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:33:42,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:33:43,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:33:43,593 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-11-22 00:33:43,593 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:33:43,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152130655] [2022-11-22 00:33:43,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152130655] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:33:43,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:33:43,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:33:43,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663920593] [2022-11-22 00:33:43,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:33:43,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:33:43,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:33:43,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:33:43,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:33:43,598 INFO L87 Difference]: Start difference. First operand 4029 states and 5755 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-22 00:33:46,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:33:55,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:33:55,308 INFO L93 Difference]: Finished difference Result 10863 states and 15358 transitions. [2022-11-22 00:33:55,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:33:55,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 247 [2022-11-22 00:33:55,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:33:55,371 INFO L225 Difference]: With dead ends: 10863 [2022-11-22 00:33:55,372 INFO L226 Difference]: Without dead ends: 6873 [2022-11-22 00:33:55,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:33:55,392 INFO L413 NwaCegarLoop]: 3312 mSDtfsCounter, 2447 mSDsluCounter, 2687 mSDsCounter, 0 mSdLazyCounter, 1099 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2450 SdHoareTripleChecker+Valid, 5999 SdHoareTripleChecker+Invalid, 1107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1099 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:33:55,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2450 Valid, 5999 Invalid, 1107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1099 Invalid, 1 Unknown, 0 Unchecked, 11.2s Time] [2022-11-22 00:33:55,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6873 states. [2022-11-22 00:33:55,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6873 to 6869. [2022-11-22 00:33:55,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6869 states, 4121 states have (on average 1.2931327347731134) internal successors, (5329), 4311 states have internal predecessors, (5329), 2153 states have call successors, (2153), 594 states have call predecessors, (2153), 594 states have return successors, (2166), 2116 states have call predecessors, (2166), 2153 states have call successors, (2166) [2022-11-22 00:33:55,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6869 states to 6869 states and 9648 transitions. [2022-11-22 00:33:55,795 INFO L78 Accepts]: Start accepts. Automaton has 6869 states and 9648 transitions. Word has length 247 [2022-11-22 00:33:55,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:33:55,798 INFO L495 AbstractCegarLoop]: Abstraction has 6869 states and 9648 transitions. [2022-11-22 00:33:55,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-22 00:33:55,798 INFO L276 IsEmpty]: Start isEmpty. Operand 6869 states and 9648 transitions. [2022-11-22 00:33:55,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-11-22 00:33:55,808 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:33:55,808 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 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] [2022-11-22 00:33:55,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:33:55,809 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:33:55,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:33:55,820 INFO L85 PathProgramCache]: Analyzing trace with hash -196097697, now seen corresponding path program 1 times [2022-11-22 00:33:55,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:33:55,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744349571] [2022-11-22 00:33:55,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:33:55,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:33:56,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:33:56,679 INFO L134 CoverageAnalysis]: Checked inductivity of 1408 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1408 trivial. 0 not checked. [2022-11-22 00:33:56,679 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:33:56,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744349571] [2022-11-22 00:33:56,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744349571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:33:56,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:33:56,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:33:56,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227017654] [2022-11-22 00:33:56,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:33:56,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:33:56,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:33:56,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:33:56,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:33:56,689 INFO L87 Difference]: Start difference. First operand 6869 states and 9648 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-22 00:33:59,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:34:09,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:34:09,747 INFO L93 Difference]: Finished difference Result 19446 states and 27316 transitions. [2022-11-22 00:34:09,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:34:09,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 258 [2022-11-22 00:34:09,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:34:09,840 INFO L225 Difference]: With dead ends: 19446 [2022-11-22 00:34:09,840 INFO L226 Difference]: Without dead ends: 12616 [2022-11-22 00:34:09,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:09,880 INFO L413 NwaCegarLoop]: 4030 mSDtfsCounter, 3103 mSDsluCounter, 2737 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3105 SdHoareTripleChecker+Valid, 6767 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2022-11-22 00:34:09,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3105 Valid, 6767 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1193 Invalid, 1 Unknown, 0 Unchecked, 12.5s Time] [2022-11-22 00:34:09,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12616 states. [2022-11-22 00:34:10,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12616 to 12602. [2022-11-22 00:34:10,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12602 states, 7539 states have (on average 1.291683247115002) internal successors, (9738), 7889 states have internal predecessors, (9738), 3957 states have call successors, (3957), 1101 states have call predecessors, (3957), 1105 states have return successors, (4014), 3883 states have call predecessors, (4014), 3957 states have call successors, (4014) [2022-11-22 00:34:10,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12602 states to 12602 states and 17709 transitions. [2022-11-22 00:34:10,977 INFO L78 Accepts]: Start accepts. Automaton has 12602 states and 17709 transitions. Word has length 258 [2022-11-22 00:34:10,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:34:10,978 INFO L495 AbstractCegarLoop]: Abstraction has 12602 states and 17709 transitions. [2022-11-22 00:34:10,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-22 00:34:10,978 INFO L276 IsEmpty]: Start isEmpty. Operand 12602 states and 17709 transitions. [2022-11-22 00:34:10,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-11-22 00:34:10,989 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:34:10,989 INFO L195 NwaCegarLoop]: trace histogram [21, 19, 19, 19, 19, 19, 19, 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] [2022-11-22 00:34:10,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 00:34:10,990 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:34:10,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:34:10,990 INFO L85 PathProgramCache]: Analyzing trace with hash 160349863, now seen corresponding path program 1 times [2022-11-22 00:34:10,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:34:10,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018852519] [2022-11-22 00:34:10,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:34:10,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:34:11,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:34:11,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1455 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1448 trivial. 0 not checked. [2022-11-22 00:34:11,581 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:34:11,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018852519] [2022-11-22 00:34:11,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018852519] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:34:11,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:34:11,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:34:11,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621591809] [2022-11-22 00:34:11,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:34:11,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:34:11,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:34:11,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:34:11,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:11,584 INFO L87 Difference]: Start difference. First operand 12602 states and 17709 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-22 00:34:15,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:34:23,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:34:23,570 INFO L93 Difference]: Finished difference Result 37716 states and 52994 transitions. [2022-11-22 00:34:23,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:34:23,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 276 [2022-11-22 00:34:23,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:34:23,902 INFO L225 Difference]: With dead ends: 37716 [2022-11-22 00:34:23,903 INFO L226 Difference]: Without dead ends: 25153 [2022-11-22 00:34:23,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:23,963 INFO L413 NwaCegarLoop]: 4118 mSDtfsCounter, 3185 mSDsluCounter, 2737 mSDsCounter, 0 mSdLazyCounter, 1201 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3188 SdHoareTripleChecker+Valid, 6855 SdHoareTripleChecker+Invalid, 1206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1201 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:34:23,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3188 Valid, 6855 Invalid, 1206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1201 Invalid, 1 Unknown, 0 Unchecked, 11.0s Time] [2022-11-22 00:34:23,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25153 states. [2022-11-22 00:34:25,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25153 to 25135. [2022-11-22 00:34:25,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25135 states, 15037 states have (on average 1.2914145108731796) internal successors, (19419), 15749 states have internal predecessors, (19419), 7887 states have call successors, (7887), 2202 states have call predecessors, (7887), 2210 states have return successors, (8004), 7727 states have call predecessors, (8004), 7887 states have call successors, (8004) [2022-11-22 00:34:25,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25135 states to 25135 states and 35310 transitions. [2022-11-22 00:34:25,663 INFO L78 Accepts]: Start accepts. Automaton has 25135 states and 35310 transitions. Word has length 276 [2022-11-22 00:34:25,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:34:25,664 INFO L495 AbstractCegarLoop]: Abstraction has 25135 states and 35310 transitions. [2022-11-22 00:34:25,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-22 00:34:25,665 INFO L276 IsEmpty]: Start isEmpty. Operand 25135 states and 35310 transitions. [2022-11-22 00:34:25,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2022-11-22 00:34:25,686 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:34:25,686 INFO L195 NwaCegarLoop]: trace histogram [22, 19, 19, 19, 19, 19, 19, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:34:25,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 00:34:25,687 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:34:25,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:34:25,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1237149517, now seen corresponding path program 1 times [2022-11-22 00:34:25,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:34:25,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72638941] [2022-11-22 00:34:25,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:34:25,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:34:25,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:34:26,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1506 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1500 trivial. 0 not checked. [2022-11-22 00:34:26,461 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:34:26,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72638941] [2022-11-22 00:34:26,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72638941] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:34:26,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:34:26,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:34:26,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870846966] [2022-11-22 00:34:26,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:34:26,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:34:26,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:34:26,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:34:26,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:26,465 INFO L87 Difference]: Start difference. First operand 25135 states and 35310 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-11-22 00:34:31,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:34:38,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:34:39,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:34:39,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:34:39,686 INFO L93 Difference]: Finished difference Result 50589 states and 70955 transitions. [2022-11-22 00:34:39,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:34:39,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 294 [2022-11-22 00:34:39,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:34:39,840 INFO L225 Difference]: With dead ends: 50589 [2022-11-22 00:34:39,840 INFO L226 Difference]: Without dead ends: 25493 [2022-11-22 00:34:39,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:39,932 INFO L413 NwaCegarLoop]: 2800 mSDtfsCounter, 333 mSDsluCounter, 2709 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 5509 SdHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:34:39,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 5509 Invalid, 1063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1058 Invalid, 1 Unknown, 0 Unchecked, 12.1s Time] [2022-11-22 00:34:39,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25493 states. [2022-11-22 00:34:41,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25493 to 25493. [2022-11-22 00:34:41,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25493 states, 15258 states have (on average 1.2892908638091494) internal successors, (19672), 15977 states have internal predecessors, (19672), 7955 states have call successors, (7955), 2271 states have call predecessors, (7955), 2279 states have return successors, (8072), 7795 states have call predecessors, (8072), 7955 states have call successors, (8072) [2022-11-22 00:34:41,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25493 states to 25493 states and 35699 transitions. [2022-11-22 00:34:41,822 INFO L78 Accepts]: Start accepts. Automaton has 25493 states and 35699 transitions. Word has length 294 [2022-11-22 00:34:41,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:34:41,823 INFO L495 AbstractCegarLoop]: Abstraction has 25493 states and 35699 transitions. [2022-11-22 00:34:41,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-11-22 00:34:41,823 INFO L276 IsEmpty]: Start isEmpty. Operand 25493 states and 35699 transitions. [2022-11-22 00:34:41,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-11-22 00:34:41,836 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:34:41,836 INFO L195 NwaCegarLoop]: trace histogram [24, 20, 20, 20, 20, 20, 20, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:34:41,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 00:34:41,837 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:34:41,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:34:41,837 INFO L85 PathProgramCache]: Analyzing trace with hash -2073375514, now seen corresponding path program 1 times [2022-11-22 00:34:41,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:34:41,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904025352] [2022-11-22 00:34:41,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:34:41,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:34:42,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:34:42,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1725 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1722 trivial. 0 not checked. [2022-11-22 00:34:42,609 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:34:42,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904025352] [2022-11-22 00:34:42,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904025352] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:34:42,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:34:42,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:34:42,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991171621] [2022-11-22 00:34:42,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:34:42,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:34:42,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:34:42,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:34:42,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:42,612 INFO L87 Difference]: Start difference. First operand 25493 states and 35699 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-22 00:34:46,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:34:55,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:34:55,129 INFO L93 Difference]: Finished difference Result 60191 states and 84210 transitions. [2022-11-22 00:34:55,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:34:55,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 291 [2022-11-22 00:34:55,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:34:55,332 INFO L225 Difference]: With dead ends: 60191 [2022-11-22 00:34:55,332 INFO L226 Difference]: Without dead ends: 34983 [2022-11-22 00:34:55,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:55,426 INFO L413 NwaCegarLoop]: 4169 mSDtfsCounter, 2474 mSDsluCounter, 2697 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2477 SdHoareTripleChecker+Valid, 6866 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:34:55,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2477 Valid, 6866 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1326 Invalid, 1 Unknown, 0 Unchecked, 11.1s Time] [2022-11-22 00:34:55,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34983 states. [2022-11-22 00:34:57,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34983 to 34973. [2022-11-22 00:34:57,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34973 states, 20938 states have (on average 1.2873244818034195) internal successors, (26954), 21919 states have internal predecessors, (26954), 10823 states have call successors, (10823), 3195 states have call predecessors, (10823), 3211 states have return successors, (10972), 10621 states have call predecessors, (10972), 10823 states have call successors, (10972) [2022-11-22 00:34:57,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34973 states to 34973 states and 48749 transitions. [2022-11-22 00:34:57,513 INFO L78 Accepts]: Start accepts. Automaton has 34973 states and 48749 transitions. Word has length 291 [2022-11-22 00:34:57,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:34:57,515 INFO L495 AbstractCegarLoop]: Abstraction has 34973 states and 48749 transitions. [2022-11-22 00:34:57,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-22 00:34:57,515 INFO L276 IsEmpty]: Start isEmpty. Operand 34973 states and 48749 transitions. [2022-11-22 00:34:57,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2022-11-22 00:34:57,549 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:34:57,549 INFO L195 NwaCegarLoop]: trace histogram [25, 19, 19, 19, 19, 19, 19, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:34:57,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 00:34:57,550 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:34:57,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:34:57,551 INFO L85 PathProgramCache]: Analyzing trace with hash 235922623, now seen corresponding path program 1 times [2022-11-22 00:34:57,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:34:57,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418180924] [2022-11-22 00:34:57,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:34:57,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:34:57,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:35:00,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1685 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 1659 trivial. 0 not checked. [2022-11-22 00:35:00,021 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:35:00,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418180924] [2022-11-22 00:35:00,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418180924] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:35:00,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512208936] [2022-11-22 00:35:00,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:35:00,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:35:00,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9b1c52b-c561-46bd-a6b3-cb72cd6c2e7b/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:35:00,030 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9b1c52b-c561-46bd-a6b3-cb72cd6c2e7b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:35:00,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9b1c52b-c561-46bd-a6b3-cb72cd6c2e7b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 00:35:02,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:35:02,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 5708 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 00:35:02,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:35:02,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-22 00:35:02,571 INFO L134 CoverageAnalysis]: Checked inductivity of 1685 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1685 trivial. 0 not checked. [2022-11-22 00:35:02,574 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:35:02,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512208936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:35:02,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 00:35:02,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-11-22 00:35:02,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345973550] [2022-11-22 00:35:02,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:35:02,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:35:02,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:35:02,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:35:02,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-22 00:35:02,578 INFO L87 Difference]: Start difference. First operand 34973 states and 48749 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-22 00:35:04,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:35:07,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:35:09,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:35:20,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:35:26,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:35:26,065 INFO L93 Difference]: Finished difference Result 69629 states and 97103 transitions. [2022-11-22 00:35:26,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:35:26,066 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 333 [2022-11-22 00:35:26,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:35:26,259 INFO L225 Difference]: With dead ends: 69629 [2022-11-22 00:35:26,259 INFO L226 Difference]: Without dead ends: 34941 [2022-11-22 00:35:26,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-22 00:35:26,660 INFO L413 NwaCegarLoop]: 2733 mSDtfsCounter, 0 mSDsluCounter, 5185 mSDsCounter, 0 mSdLazyCounter, 1843 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7918 SdHoareTripleChecker+Invalid, 1846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1843 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:35:26,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7918 Invalid, 1846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1843 Invalid, 3 Unknown, 0 Unchecked, 22.2s Time] [2022-11-22 00:35:26,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34941 states. [2022-11-22 00:35:28,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34941 to 34941. [2022-11-22 00:35:28,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34941 states, 20922 states have (on average 1.2867794665901922) internal successors, (26922), 21903 states have internal predecessors, (26922), 10807 states have call successors, (10807), 3195 states have call predecessors, (10807), 3211 states have return successors, (10956), 10605 states have call predecessors, (10956), 10807 states have call successors, (10956) [2022-11-22 00:35:28,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34941 states to 34941 states and 48685 transitions. [2022-11-22 00:35:28,465 INFO L78 Accepts]: Start accepts. Automaton has 34941 states and 48685 transitions. Word has length 333 [2022-11-22 00:35:28,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:35:28,467 INFO L495 AbstractCegarLoop]: Abstraction has 34941 states and 48685 transitions. [2022-11-22 00:35:28,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-22 00:35:28,468 INFO L276 IsEmpty]: Start isEmpty. Operand 34941 states and 48685 transitions. [2022-11-22 00:35:28,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2022-11-22 00:35:28,496 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:35:28,497 INFO L195 NwaCegarLoop]: trace histogram [25, 19, 19, 19, 19, 19, 19, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:35:28,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9b1c52b-c561-46bd-a6b3-cb72cd6c2e7b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 00:35:28,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9b1c52b-c561-46bd-a6b3-cb72cd6c2e7b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:35:28,711 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:35:28,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:35:28,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1453360436, now seen corresponding path program 1 times [2022-11-22 00:35:28,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:35:28,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136297728] [2022-11-22 00:35:28,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:35:28,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:35:29,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:35:36,637 INFO L134 CoverageAnalysis]: Checked inductivity of 1685 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1685 trivial. 0 not checked. [2022-11-22 00:35:36,638 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:35:36,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136297728] [2022-11-22 00:35:36,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136297728] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:35:36,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:35:36,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 00:35:36,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582014897] [2022-11-22 00:35:36,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:35:36,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 00:35:36,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:35:36,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 00:35:36,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:35:36,641 INFO L87 Difference]: Start difference. First operand 34941 states and 48685 transitions. Second operand has 6 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-22 00:35:42,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:35:55,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:35:59,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 00:36:08,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:36:10,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:36:10,676 INFO L93 Difference]: Finished difference Result 65127 states and 90735 transitions. [2022-11-22 00:36:10,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 00:36:10,677 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) Word has length 337 [2022-11-22 00:36:10,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:36:11,117 INFO L225 Difference]: With dead ends: 65127 [2022-11-22 00:36:11,118 INFO L226 Difference]: Without dead ends: 65125 [2022-11-22 00:36:11,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-22 00:36:11,151 INFO L413 NwaCegarLoop]: 3469 mSDtfsCounter, 2816 mSDsluCounter, 11765 mSDsCounter, 0 mSdLazyCounter, 4068 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2817 SdHoareTripleChecker+Valid, 15234 SdHoareTripleChecker+Invalid, 4073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4068 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.8s IncrementalHoareTripleChecker+Time [2022-11-22 00:36:11,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2817 Valid, 15234 Invalid, 4073 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3 Valid, 4068 Invalid, 2 Unknown, 0 Unchecked, 29.8s Time] [2022-11-22 00:36:11,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65125 states. [2022-11-22 00:36:15,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65125 to 64932. [2022-11-22 00:36:15,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64932 states, 39035 states have (on average 1.2876392980658384) internal successors, (50263), 40835 states have internal predecessors, (50263), 19868 states have call successors, (19868), 6110 states have call predecessors, (19868), 6028 states have return successors, (20338), 19249 states have call predecessors, (20338), 19868 states have call successors, (20338) [2022-11-22 00:36:15,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64932 states to 64932 states and 90469 transitions. [2022-11-22 00:36:15,515 INFO L78 Accepts]: Start accepts. Automaton has 64932 states and 90469 transitions. Word has length 337 [2022-11-22 00:36:15,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:36:15,516 INFO L495 AbstractCegarLoop]: Abstraction has 64932 states and 90469 transitions. [2022-11-22 00:36:15,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-22 00:36:15,516 INFO L276 IsEmpty]: Start isEmpty. Operand 64932 states and 90469 transitions. [2022-11-22 00:36:15,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2022-11-22 00:36:15,592 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:36:15,593 INFO L195 NwaCegarLoop]: trace histogram [25, 19, 19, 19, 19, 19, 19, 10, 10, 4, 3, 3, 3, 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] [2022-11-22 00:36:15,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 00:36:15,593 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:36:15,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:36:15,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1554600971, now seen corresponding path program 1 times [2022-11-22 00:36:15,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:36:15,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182954963] [2022-11-22 00:36:15,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:36:15,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:36:16,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:36:22,656 INFO L134 CoverageAnalysis]: Checked inductivity of 1803 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1803 trivial. 0 not checked. [2022-11-22 00:36:22,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:36:22,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182954963] [2022-11-22 00:36:22,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182954963] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:36:22,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:36:22,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-22 00:36:22,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206101771] [2022-11-22 00:36:22,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:36:22,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 00:36:22,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:36:22,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 00:36:22,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-22 00:36:22,659 INFO L87 Difference]: Start difference. First operand 64932 states and 90469 transitions. Second operand has 8 states, 7 states have (on average 17.857142857142858) internal successors, (125), 7 states have internal predecessors, (125), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (57), 5 states have call predecessors, (57), 3 states have call successors, (57) [2022-11-22 00:36:28,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:36:30,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:36:31,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:36:33,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:36:35,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:36:55,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:37:00,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:37:00,401 INFO L93 Difference]: Finished difference Result 68795 states and 94709 transitions. [2022-11-22 00:37:00,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 00:37:00,402 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 17.857142857142858) internal successors, (125), 7 states have internal predecessors, (125), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (57), 5 states have call predecessors, (57), 3 states have call successors, (57) Word has length 421 [2022-11-22 00:37:00,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:37:00,642 INFO L225 Difference]: With dead ends: 68795 [2022-11-22 00:37:00,642 INFO L226 Difference]: Without dead ends: 68793 [2022-11-22 00:37:00,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-22 00:37:00,664 INFO L413 NwaCegarLoop]: 2874 mSDtfsCounter, 6688 mSDsluCounter, 7424 mSDsCounter, 0 mSdLazyCounter, 3858 mSolverCounterSat, 2667 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6698 SdHoareTripleChecker+Valid, 10298 SdHoareTripleChecker+Invalid, 6528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2667 IncrementalHoareTripleChecker+Valid, 3858 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.6s IncrementalHoareTripleChecker+Time [2022-11-22 00:37:00,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6698 Valid, 10298 Invalid, 6528 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2667 Valid, 3858 Invalid, 3 Unknown, 0 Unchecked, 29.6s Time] [2022-11-22 00:37:00,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68793 states. [2022-11-22 00:37:09,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68793 to 68689. [2022-11-22 00:37:09,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68689 states, 41134 states have (on average 1.2796713181309864) internal successors, (52638), 42982 states have internal predecessors, (52638), 20712 states have call successors, (20712), 6924 states have call predecessors, (20712), 6842 states have return successors, (21182), 20093 states have call predecessors, (21182), 20712 states have call successors, (21182) [2022-11-22 00:37:09,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68689 states to 68689 states and 94532 transitions. [2022-11-22 00:37:09,437 INFO L78 Accepts]: Start accepts. Automaton has 68689 states and 94532 transitions. Word has length 421 [2022-11-22 00:37:09,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:37:09,437 INFO L495 AbstractCegarLoop]: Abstraction has 68689 states and 94532 transitions. [2022-11-22 00:37:09,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 17.857142857142858) internal successors, (125), 7 states have internal predecessors, (125), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (57), 5 states have call predecessors, (57), 3 states have call successors, (57) [2022-11-22 00:37:09,438 INFO L276 IsEmpty]: Start isEmpty. Operand 68689 states and 94532 transitions. [2022-11-22 00:37:09,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 668 [2022-11-22 00:37:09,620 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:37:09,620 INFO L195 NwaCegarLoop]: trace histogram [36, 23, 23, 23, 23, 23, 23, 18, 18, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:37:09,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 00:37:09,621 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:37:09,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:37:09,622 INFO L85 PathProgramCache]: Analyzing trace with hash -372768870, now seen corresponding path program 1 times [2022-11-22 00:37:09,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:37:09,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232352734] [2022-11-22 00:37:09,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:37:09,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:37:09,937 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 00:37:09,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1645946099] [2022-11-22 00:37:09,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:37:09,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:37:09,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9b1c52b-c561-46bd-a6b3-cb72cd6c2e7b/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:37:09,944 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9b1c52b-c561-46bd-a6b3-cb72cd6c2e7b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:37:09,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9b1c52b-c561-46bd-a6b3-cb72cd6c2e7b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 00:37:12,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:37:12,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 8329 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 00:37:12,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:37:12,791 INFO L134 CoverageAnalysis]: Checked inductivity of 3320 backedges. 972 proven. 0 refuted. 0 times theorem prover too weak. 2348 trivial. 0 not checked. [2022-11-22 00:37:12,791 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:37:12,791 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:37:12,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232352734] [2022-11-22 00:37:12,792 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 00:37:12,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645946099] [2022-11-22 00:37:12,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1645946099] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:37:12,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:37:12,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:37:12,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347755982] [2022-11-22 00:37:12,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:37:12,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:37:12,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:37:12,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:37:12,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:37:12,795 INFO L87 Difference]: Start difference. First operand 68689 states and 94532 transitions. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 2 states have call successors, (89), 2 states have call predecessors, (89), 2 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) [2022-11-22 00:37:16,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []