./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-wan-lmc-lmc.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_10875bd2-a98d-4bc4-9715-d3d322d56ed2/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10875bd2-a98d-4bc4-9715-d3d322d56ed2/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_10875bd2-a98d-4bc4-9715-d3d322d56ed2/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10875bd2-a98d-4bc4-9715-d3d322d56ed2/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10875bd2-a98d-4bc4-9715-d3d322d56ed2/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_10875bd2-a98d-4bc4-9715-d3d322d56ed2/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 8e81fc6166b432b951460f7a3a0e3bbe6d1e1e00a7297f549296af2cd8a39c75 --- 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 01:58:47,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:58:47,612 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:58:47,650 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:58:47,651 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:58:47,652 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:58:47,653 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:58:47,654 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:58:47,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:58:47,668 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:58:47,670 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:58:47,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:58:47,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:58:47,676 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:58:47,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:58:47,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:58:47,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:58:47,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:58:47,688 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:58:47,694 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:58:47,696 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:58:47,699 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:58:47,701 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:58:47,702 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:58:47,708 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:58:47,708 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:58:47,709 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:58:47,710 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:58:47,710 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:58:47,711 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:58:47,711 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:58:47,712 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:58:47,713 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:58:47,713 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:58:47,714 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:58:47,715 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:58:47,715 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:58:47,715 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:58:47,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:58:47,717 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:58:47,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:58:47,723 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10875bd2-a98d-4bc4-9715-d3d322d56ed2/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:58:47,764 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:58:47,765 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:58:47,765 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:58:47,765 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:58:47,766 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:58:47,766 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:58:47,767 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:58:47,767 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:58:47,767 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:58:47,767 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:58:47,768 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:58:47,768 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:58:47,769 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:58:47,769 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:58:47,769 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:58:47,769 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:58:47,769 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:58:47,770 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:58:47,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:58:47,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:58:47,771 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:58:47,771 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:58:47,771 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:58:47,771 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:58:47,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:58:47,772 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:58:47,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:58:47,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:58:47,773 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:58:47,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:58:47,773 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:58:47,773 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:58:47,773 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:58:47,774 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:58:47,774 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:58:47,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:58:47,774 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:58:47,774 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:58:47,775 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_10875bd2-a98d-4bc4-9715-d3d322d56ed2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10875bd2-a98d-4bc4-9715-d3d322d56ed2/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e81fc6166b432b951460f7a3a0e3bbe6d1e1e00a7297f549296af2cd8a39c75 [2022-11-22 01:58:48,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:58:48,093 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:58:48,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:58:48,097 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:58:48,098 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:58:48,099 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10875bd2-a98d-4bc4-9715-d3d322d56ed2/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i [2022-11-22 01:58:51,287 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:58:51,980 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:58:51,981 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10875bd2-a98d-4bc4-9715-d3d322d56ed2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i [2022-11-22 01:58:52,031 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10875bd2-a98d-4bc4-9715-d3d322d56ed2/bin/utaipan-g80aRyZoba/data/05d1a0aaf/a3818d558d9d4b19bba75ac6b36ab43d/FLAGb94e19acb [2022-11-22 01:58:52,046 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10875bd2-a98d-4bc4-9715-d3d322d56ed2/bin/utaipan-g80aRyZoba/data/05d1a0aaf/a3818d558d9d4b19bba75ac6b36ab43d [2022-11-22 01:58:52,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:58:52,051 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:58:52,052 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:58:52,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:58:52,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:58:52,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:58:52" (1/1) ... [2022-11-22 01:58:52,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e01cff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:52, skipping insertion in model container [2022-11-22 01:58:52,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:58:52" (1/1) ... [2022-11-22 01:58:52,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:58:52,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:58:55,582 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_10875bd2-a98d-4bc4-9715-d3d322d56ed2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395259,395272] [2022-11-22 01:58:55,585 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_10875bd2-a98d-4bc4-9715-d3d322d56ed2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395404,395417] [2022-11-22 01:58:55,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:58:55,630 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:58:56,743 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_10875bd2-a98d-4bc4-9715-d3d322d56ed2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395259,395272] [2022-11-22 01:58:56,743 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_10875bd2-a98d-4bc4-9715-d3d322d56ed2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395404,395417] [2022-11-22 01:58:56,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:58:57,013 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:58:57,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:57 WrapperNode [2022-11-22 01:58:57,015 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:58:57,016 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:58:57,016 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:58:57,016 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:58:57,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:57" (1/1) ... [2022-11-22 01:58:57,141 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:57" (1/1) ... [2022-11-22 01:58:57,332 INFO L138 Inliner]: procedures = 493, calls = 2689, calls flagged for inlining = 240, calls inlined = 225, statements flattened = 5150 [2022-11-22 01:58:57,333 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:58:57,333 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:58:57,334 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:58:57,334 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:58:57,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:57" (1/1) ... [2022-11-22 01:58:57,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:57" (1/1) ... [2022-11-22 01:58:57,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:57" (1/1) ... [2022-11-22 01:58:57,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:57" (1/1) ... [2022-11-22 01:58:57,542 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:57" (1/1) ... [2022-11-22 01:58:57,573 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:57" (1/1) ... [2022-11-22 01:58:57,613 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:57" (1/1) ... [2022-11-22 01:58:57,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:57" (1/1) ... [2022-11-22 01:58:57,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:58:57,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:58:57,677 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:58:57,677 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:58:57,678 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:57" (1/1) ... [2022-11-22 01:58:57,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:58:57,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10875bd2-a98d-4bc4-9715-d3d322d56ed2/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:58:57,709 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10875bd2-a98d-4bc4-9715-d3d322d56ed2/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:58:57,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10875bd2-a98d-4bc4-9715-d3d322d56ed2/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:58:57,756 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_running_reset [2022-11-22 01:58:57,756 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_running_reset [2022-11-22 01:58:57,756 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-22 01:58:57,757 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-22 01:58:57,757 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_crc_length [2022-11-22 01:58:57,757 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_crc_length [2022-11-22 01:58:57,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 01:58:57,757 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 01:58:57,757 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dec_reset [2022-11-22 01:58:57,758 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dec_reset [2022-11-22 01:58:57,758 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_get_link_status [2022-11-22 01:58:57,758 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_get_link_status [2022-11-22 01:58:57,758 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-22 01:58:57,758 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-22 01:58:57,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_87 [2022-11-22 01:58:57,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_87 [2022-11-22 01:58:57,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:58:57,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:58:57,759 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_default [2022-11-22 01:58:57,759 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_default [2022-11-22 01:58:57,759 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkinput [2022-11-22 01:58:57,760 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkinput [2022-11-22 01:58:57,760 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_status [2022-11-22 01:58:57,761 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_status [2022-11-22 01:58:57,761 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_100ft [2022-11-22 01:58:57,761 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_100ft [2022-11-22 01:58:57,762 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dummy_set_1 [2022-11-22 01:58:57,762 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dummy_set_1 [2022-11-22 01:58:57,762 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-22 01:58:57,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-22 01:58:57,763 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_close [2022-11-22 01:58:57,763 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_close [2022-11-22 01:58:57,763 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_watchdog [2022-11-22 01:58:57,763 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_watchdog [2022-11-22 01:58:57,763 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_reset [2022-11-22 01:58:57,764 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_reset [2022-11-22 01:58:57,764 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_sc [2022-11-22 01:58:57,764 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_sc [2022-11-22 01:58:57,764 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_netif [2022-11-22 01:58:57,764 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_netif [2022-11-22 01:58:57,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 01:58:57,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 01:58:57,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 01:58:57,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 01:58:57,765 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_trace [2022-11-22 01:58:57,765 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_trace [2022-11-22 01:58:57,765 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_get_link_status [2022-11-22 01:58:57,766 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_get_link_status [2022-11-22 01:58:57,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:58:57,766 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-22 01:58:57,767 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-22 01:58:57,767 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 01:58:57,767 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 01:58:57,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 01:58:57,768 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-22 01:58:57,768 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-22 01:58:57,768 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_default [2022-11-22 01:58:57,768 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_default [2022-11-22 01:58:57,769 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_clock [2022-11-22 01:58:57,769 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_clock [2022-11-22 01:58:57,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 01:58:57,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 01:58:57,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 01:58:57,770 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_off [2022-11-22 01:58:57,770 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_off [2022-11-22 01:58:57,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:58:57,770 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2022-11-22 01:58:57,770 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2022-11-22 01:58:57,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-22 01:58:57,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-22 01:58:57,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-22 01:58:57,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-22 01:58:57,772 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_default [2022-11-22 01:58:57,773 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_default [2022-11-22 01:58:57,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 01:58:57,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 01:58:57,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 01:58:57,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 01:58:57,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-22 01:58:57,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-22 01:58:57,775 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_softreset [2022-11-22 01:58:57,775 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_softreset [2022-11-22 01:58:57,775 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110_bit [2022-11-22 01:58:57,775 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110_bit [2022-11-22 01:58:57,775 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-22 01:58:57,775 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-22 01:58:57,775 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-22 01:58:57,776 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-22 01:58:57,776 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_crc_length [2022-11-22 01:58:57,776 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_crc_length [2022-11-22 01:58:57,777 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_writereg [2022-11-22 01:58:57,777 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_writereg [2022-11-22 01:58:57,777 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2022-11-22 01:58:57,777 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2022-11-22 01:58:57,778 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_status [2022-11-22 01:58:57,778 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_status [2022-11-22 01:58:57,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:58:57,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-22 01:58:57,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-22 01:58:57,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-22 01:58:57,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-22 01:58:57,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:58:57,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 01:58:57,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 01:58:57,779 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 01:58:57,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 01:58:57,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lmc_lock_of_lmc___softc [2022-11-22 01:58:57,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lmc_lock_of_lmc___softc [2022-11-22 01:58:57,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:58:57,784 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_readreg [2022-11-22 01:58:57,785 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_readreg [2022-11-22 01:58:57,786 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:58:57,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:58:57,786 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-22 01:58:57,786 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-22 01:58:57,787 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:58:57,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:58:57,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-22 01:58:57,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-22 01:58:57,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-22 01:58:57,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-22 01:58:57,794 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_init [2022-11-22 01:58:57,794 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_init [2022-11-22 01:58:57,794 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-22 01:58:57,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-22 01:58:57,795 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_open [2022-11-22 01:58:57,795 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_open [2022-11-22 01:58:57,795 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-22 01:58:57,795 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-22 01:58:57,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-22 01:58:57,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-22 01:58:57,796 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_watchdog [2022-11-22 01:58:57,796 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_watchdog [2022-11-22 01:58:57,796 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_status [2022-11-22 01:58:57,796 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_status [2022-11-22 01:58:57,796 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_set_protocol [2022-11-22 01:58:57,796 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_set_protocol [2022-11-22 01:58:57,796 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_clock [2022-11-22 01:58:57,796 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_clock [2022-11-22 01:58:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-22 01:58:57,797 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-22 01:58:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:58:57,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:58:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_open [2022-11-22 01:58:57,797 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_open [2022-11-22 01:58:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 01:58:57,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:58:57,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 01:58:57,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 01:58:57,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_lmc_driver_exit_17_2 [2022-11-22 01:58:57,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_lmc_driver_exit_17_2 [2022-11-22 01:58:57,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-22 01:58:57,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-22 01:58:57,799 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_get_link_status [2022-11-22 01:58:57,799 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_get_link_status [2022-11-22 01:58:57,799 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_circuit_type [2022-11-22 01:58:57,799 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_circuit_type [2022-11-22 01:58:57,799 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_status [2022-11-22 01:58:57,799 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_status [2022-11-22 01:58:57,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 01:58:57,800 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 01:58:57,800 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_get_link_status [2022-11-22 01:58:57,800 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_get_link_status [2022-11-22 01:58:57,800 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_init [2022-11-22 01:58:57,801 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_init [2022-11-22 01:58:57,801 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-22 01:58:57,801 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-22 01:58:57,801 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_scram [2022-11-22 01:58:57,801 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_scram [2022-11-22 01:58:57,801 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_init [2022-11-22 01:58:57,801 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_init [2022-11-22 01:58:57,802 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkoutput [2022-11-22 01:58:57,802 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkoutput [2022-11-22 01:58:57,802 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-22 01:58:57,802 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-22 01:58:57,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:58:57,802 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_driver_timeout [2022-11-22 01:58:57,803 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_driver_timeout [2022-11-22 01:58:57,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lmc_lock_of_lmc___softc [2022-11-22 01:58:57,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lmc_lock_of_lmc___softc [2022-11-22 01:58:57,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:58:57,804 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-22 01:58:57,804 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-22 01:58:57,804 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110 [2022-11-22 01:58:57,804 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110 [2022-11-22 01:58:57,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:58:57,804 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-22 01:58:57,804 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-22 01:58:57,805 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_speed [2022-11-22 01:58:57,805 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_speed [2022-11-22 01:58:57,805 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_crc_length [2022-11-22 01:58:57,805 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_crc_length [2022-11-22 01:58:57,805 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-22 01:58:57,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-22 01:58:57,805 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_type [2022-11-22 01:58:57,806 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_type [2022-11-22 01:58:57,806 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_remove_one [2022-11-22 01:58:57,806 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_remove_one [2022-11-22 01:58:57,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 01:58:57,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 01:58:57,806 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-22 01:58:57,806 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-22 01:58:57,807 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_write [2022-11-22 01:58:57,807 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_write [2022-11-22 01:58:57,807 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_close [2022-11-22 01:58:57,807 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_close [2022-11-22 01:58:57,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-22 01:58:57,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-22 01:58:57,807 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-22 01:58:57,808 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-22 01:58:57,808 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-22 01:58:57,808 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-22 01:58:57,808 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_link_status [2022-11-22 01:58:57,808 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_link_status [2022-11-22 01:58:57,808 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_watchdog [2022-11-22 01:58:57,808 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_watchdog [2022-11-22 01:58:57,809 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 01:58:57,809 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 01:58:57,809 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_watchdog [2022-11-22 01:58:57,809 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_watchdog [2022-11-22 01:58:57,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:58:57,809 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-22 01:58:57,809 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-22 01:58:57,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 01:58:57,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 01:58:57,810 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_link_status [2022-11-22 01:58:57,810 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_link_status [2022-11-22 01:58:57,810 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_init [2022-11-22 01:58:57,810 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_init [2022-11-22 01:58:57,810 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_attach [2022-11-22 01:58:57,810 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_attach [2022-11-22 01:58:57,811 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_default [2022-11-22 01:58:57,811 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_default [2022-11-22 01:58:57,811 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-22 01:58:57,811 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-22 01:58:57,812 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_crc_length [2022-11-22 01:58:57,816 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_crc_length [2022-11-22 01:58:57,816 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_clock [2022-11-22 01:58:57,816 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_clock [2022-11-22 01:58:57,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 01:58:57,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 01:58:57,817 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dummy_set2_1 [2022-11-22 01:58:57,817 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dummy_set2_1 [2022-11-22 01:58:57,817 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_on [2022-11-22 01:58:57,817 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_on [2022-11-22 01:58:57,818 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-22 01:58:57,819 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-22 01:58:57,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:58:57,820 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-22 01:58:57,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-22 01:58:57,820 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-11-22 01:58:57,820 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-11-22 01:58:57,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 01:58:57,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 01:58:57,820 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2022-11-22 01:58:57,821 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2022-11-22 01:58:58,772 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:58:58,780 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:58:59,207 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 01:59:01,001 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint switch_break: call #t~mem1252#1.base, #t~mem1252#1.offset := read~$Pointer$(~sc#1.base, 141 + ~sc#1.offset, 8); [2022-11-22 01:59:01,001 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L12895: SUMMARY for call lmc_trace(#t~mem1252#1.base, #t~mem1252#1.offset, 129, 0); srcloc: null [2022-11-22 01:59:01,002 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L12895-1: havoc #t~mem1252#1.base, #t~mem1252#1.offset; [2022-11-22 01:59:05,097 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 01:59:05,359 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:59:07,112 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:59:07,112 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 01:59:07,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:59:07 BoogieIcfgContainer [2022-11-22 01:59:07,120 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:59:07,125 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:59:07,125 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:59:07,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:59:07,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:58:52" (1/3) ... [2022-11-22 01:59:07,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de2881d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:59:07, skipping insertion in model container [2022-11-22 01:59:07,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:57" (2/3) ... [2022-11-22 01:59:07,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de2881d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:59:07, skipping insertion in model container [2022-11-22 01:59:07,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:59:07" (3/3) ... [2022-11-22 01:59:07,133 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i [2022-11-22 01:59:07,154 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:59:07,154 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:59:07,271 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:59:07,280 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;@2f790236, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:59:07,281 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:59:07,295 INFO L276 IsEmpty]: Start isEmpty. Operand has 2010 states, 1113 states have (on average 1.311769991015274) internal successors, (1460), 1181 states have internal predecessors, (1460), 777 states have call successors, (777), 120 states have call predecessors, (777), 119 states have return successors, (770), 727 states have call predecessors, (770), 770 states have call successors, (770) [2022-11-22 01:59:07,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-22 01:59:07,399 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:59:07,399 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:59:07,400 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:59:07,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:59:07,412 INFO L85 PathProgramCache]: Analyzing trace with hash -2012234851, now seen corresponding path program 1 times [2022-11-22 01:59:07,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:59:07,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911361799] [2022-11-22 01:59:07,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:59:07,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:59:07,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:59:08,430 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-22 01:59:08,430 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:59:08,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911361799] [2022-11-22 01:59:08,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911361799] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:59:08,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:59:08,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:59:08,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792891065] [2022-11-22 01:59:08,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:59:08,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:59:08,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:59:08,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:59:08,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:59:08,476 INFO L87 Difference]: Start difference. First operand has 2010 states, 1113 states have (on average 1.311769991015274) internal successors, (1460), 1181 states have internal predecessors, (1460), 777 states have call successors, (777), 120 states have call predecessors, (777), 119 states have return successors, (770), 727 states have call predecessors, (770), 770 states have call successors, (770) Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-22 01:59:12,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:59:12,820 INFO L93 Difference]: Finished difference Result 5785 states and 8722 transitions. [2022-11-22 01:59:12,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:59:12,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 189 [2022-11-22 01:59:12,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:59:12,889 INFO L225 Difference]: With dead ends: 5785 [2022-11-22 01:59:12,890 INFO L226 Difference]: Without dead ends: 3746 [2022-11-22 01:59:12,920 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 01:59:12,925 INFO L413 NwaCegarLoop]: 3409 mSDtfsCounter, 2683 mSDsluCounter, 2606 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2683 SdHoareTripleChecker+Valid, 6015 SdHoareTripleChecker+Invalid, 778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:59:12,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2683 Valid, 6015 Invalid, 778 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-22 01:59:12,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3746 states. [2022-11-22 01:59:13,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3746 to 3743. [2022-11-22 01:59:13,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3743 states, 2102 states have (on average 1.30732635585157) internal successors, (2748), 2233 states have internal predecessors, (2748), 1413 states have call successors, (1413), 227 states have call predecessors, (1413), 227 states have return successors, (1413), 1327 states have call predecessors, (1413), 1413 states have call successors, (1413) [2022-11-22 01:59:13,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3743 states to 3743 states and 5574 transitions. [2022-11-22 01:59:13,390 INFO L78 Accepts]: Start accepts. Automaton has 3743 states and 5574 transitions. Word has length 189 [2022-11-22 01:59:13,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:59:13,394 INFO L495 AbstractCegarLoop]: Abstraction has 3743 states and 5574 transitions. [2022-11-22 01:59:13,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-22 01:59:13,395 INFO L276 IsEmpty]: Start isEmpty. Operand 3743 states and 5574 transitions. [2022-11-22 01:59:13,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-11-22 01:59:13,427 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:59:13,427 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:59:13,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:59:13,428 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:59:13,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:59:13,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1240449862, now seen corresponding path program 1 times [2022-11-22 01:59:13,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:59:13,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718789736] [2022-11-22 01:59:13,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:59:13,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:59:13,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:59:13,836 INFO L134 CoverageAnalysis]: Checked inductivity of 876 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 876 trivial. 0 not checked. [2022-11-22 01:59:13,838 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:59:13,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718789736] [2022-11-22 01:59:13,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718789736] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:59:13,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:59:13,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:59:13,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396476931] [2022-11-22 01:59:13,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:59:13,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:59:13,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:59:13,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:59:13,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:59:13,843 INFO L87 Difference]: Start difference. First operand 3743 states and 5574 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-22 01:59:16,235 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 01:59:17,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:59:17,927 INFO L93 Difference]: Finished difference Result 10501 states and 15613 transitions. [2022-11-22 01:59:17,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:59:17,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 238 [2022-11-22 01:59:17,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:59:17,999 INFO L225 Difference]: With dead ends: 10501 [2022-11-22 01:59:17,999 INFO L226 Difference]: Without dead ends: 6789 [2022-11-22 01:59:18,031 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 01:59:18,032 INFO L413 NwaCegarLoop]: 3247 mSDtfsCounter, 2383 mSDsluCounter, 2558 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2383 SdHoareTripleChecker+Valid, 5805 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:59:18,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2383 Valid, 5805 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 741 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-11-22 01:59:18,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6789 states. [2022-11-22 01:59:18,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6789 to 6780. [2022-11-22 01:59:18,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6780 states, 3823 states have (on average 1.3055192257389485) internal successors, (4991), 4069 states have internal predecessors, (4991), 2520 states have call successors, (2520), 436 states have call predecessors, (2520), 436 states have return successors, (2556), 2349 states have call predecessors, (2556), 2520 states have call successors, (2556) [2022-11-22 01:59:18,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6780 states to 6780 states and 10067 transitions. [2022-11-22 01:59:18,491 INFO L78 Accepts]: Start accepts. Automaton has 6780 states and 10067 transitions. Word has length 238 [2022-11-22 01:59:18,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:59:18,492 INFO L495 AbstractCegarLoop]: Abstraction has 6780 states and 10067 transitions. [2022-11-22 01:59:18,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-22 01:59:18,492 INFO L276 IsEmpty]: Start isEmpty. Operand 6780 states and 10067 transitions. [2022-11-22 01:59:18,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-22 01:59:18,512 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:59:18,513 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 5, 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] [2022-11-22 01:59:18,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:59:18,514 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:59:18,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:59:18,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1583626280, now seen corresponding path program 1 times [2022-11-22 01:59:18,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:59:18,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594209055] [2022-11-22 01:59:18,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:59:18,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:59:18,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:59:19,064 INFO L134 CoverageAnalysis]: Checked inductivity of 896 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 896 trivial. 0 not checked. [2022-11-22 01:59:19,064 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:59:19,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594209055] [2022-11-22 01:59:19,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594209055] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:59:19,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:59:19,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:59:19,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298637062] [2022-11-22 01:59:19,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:59:19,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:59:19,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:59:19,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:59:19,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:59:19,068 INFO L87 Difference]: Start difference. First operand 6780 states and 10067 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-22 01:59:23,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:59:23,424 INFO L93 Difference]: Finished difference Result 19762 states and 29366 transitions. [2022-11-22 01:59:23,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:59:23,425 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 248 [2022-11-22 01:59:23,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:59:23,558 INFO L225 Difference]: With dead ends: 19762 [2022-11-22 01:59:23,558 INFO L226 Difference]: Without dead ends: 13013 [2022-11-22 01:59:23,609 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 01:59:23,612 INFO L413 NwaCegarLoop]: 3310 mSDtfsCounter, 2690 mSDsluCounter, 2585 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2690 SdHoareTripleChecker+Valid, 5895 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:59:23,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2690 Valid, 5895 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-22 01:59:23,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13013 states. [2022-11-22 01:59:24,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13013 to 13003. [2022-11-22 01:59:24,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13003 states, 7297 states have (on average 1.3031382760038372) internal successors, (9509), 7781 states have internal predecessors, (9509), 4853 states have call successors, (4853), 852 states have call predecessors, (4853), 852 states have return successors, (4962), 4503 states have call predecessors, (4962), 4853 states have call successors, (4962) [2022-11-22 01:59:24,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13003 states to 13003 states and 19324 transitions. [2022-11-22 01:59:24,751 INFO L78 Accepts]: Start accepts. Automaton has 13003 states and 19324 transitions. Word has length 248 [2022-11-22 01:59:24,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:59:24,753 INFO L495 AbstractCegarLoop]: Abstraction has 13003 states and 19324 transitions. [2022-11-22 01:59:24,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-22 01:59:24,754 INFO L276 IsEmpty]: Start isEmpty. Operand 13003 states and 19324 transitions. [2022-11-22 01:59:24,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-11-22 01:59:24,777 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:59:24,777 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 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] [2022-11-22 01:59:24,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:59:24,778 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:59:24,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:59:24,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1764512402, now seen corresponding path program 1 times [2022-11-22 01:59:24,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:59:24,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808292532] [2022-11-22 01:59:24,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:59:24,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:59:24,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:59:25,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1005 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1002 trivial. 0 not checked. [2022-11-22 01:59:25,320 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:59:25,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808292532] [2022-11-22 01:59:25,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808292532] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:59:25,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:59:25,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:59:25,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335534173] [2022-11-22 01:59:25,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:59:25,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:59:25,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:59:25,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:59:25,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:59:25,324 INFO L87 Difference]: Start difference. First operand 13003 states and 19324 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-22 01:59:29,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:59:31,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:59:31,043 INFO L93 Difference]: Finished difference Result 32121 states and 47771 transitions. [2022-11-22 01:59:31,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:59:31,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 238 [2022-11-22 01:59:31,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:59:31,201 INFO L225 Difference]: With dead ends: 32121 [2022-11-22 01:59:31,202 INFO L226 Difference]: Without dead ends: 19149 [2022-11-22 01:59:31,289 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 01:59:31,291 INFO L413 NwaCegarLoop]: 4897 mSDtfsCounter, 2630 mSDsluCounter, 2536 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2630 SdHoareTripleChecker+Valid, 7433 SdHoareTripleChecker+Invalid, 1072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:59:31,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2630 Valid, 7433 Invalid, 1072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-22 01:59:31,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19149 states. [2022-11-22 01:59:32,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19149 to 19143. [2022-11-22 01:59:32,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19143 states, 10753 states have (on average 1.3029852134288105) internal successors, (14011), 11473 states have internal predecessors, (14011), 7133 states have call successors, (7133), 1256 states have call predecessors, (7133), 1256 states have return successors, (7284), 6609 states have call predecessors, (7284), 7133 states have call successors, (7284) [2022-11-22 01:59:32,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19143 states to 19143 states and 28428 transitions. [2022-11-22 01:59:32,780 INFO L78 Accepts]: Start accepts. Automaton has 19143 states and 28428 transitions. Word has length 238 [2022-11-22 01:59:32,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:59:32,782 INFO L495 AbstractCegarLoop]: Abstraction has 19143 states and 28428 transitions. [2022-11-22 01:59:32,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-22 01:59:32,782 INFO L276 IsEmpty]: Start isEmpty. Operand 19143 states and 28428 transitions. [2022-11-22 01:59:32,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-11-22 01:59:32,804 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:59:32,804 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 12, 3, 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] [2022-11-22 01:59:32,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:59:32,805 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:59:32,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:59:32,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1272291541, now seen corresponding path program 1 times [2022-11-22 01:59:32,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:59:32,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380197132] [2022-11-22 01:59:32,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:59:32,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:59:32,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:59:33,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1016 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1016 trivial. 0 not checked. [2022-11-22 01:59:33,263 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:59:33,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380197132] [2022-11-22 01:59:33,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380197132] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:59:33,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:59:33,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:59:33,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775052682] [2022-11-22 01:59:33,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:59:33,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:59:33,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:59:33,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:59:33,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:59:33,266 INFO L87 Difference]: Start difference. First operand 19143 states and 28428 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-22 01:59:38,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:59:38,016 INFO L93 Difference]: Finished difference Result 56423 states and 83743 transitions. [2022-11-22 01:59:38,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:59:38,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 328 [2022-11-22 01:59:38,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:59:38,346 INFO L225 Difference]: With dead ends: 56423 [2022-11-22 01:59:38,346 INFO L226 Difference]: Without dead ends: 37311 [2022-11-22 01:59:38,624 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 01:59:38,625 INFO L413 NwaCegarLoop]: 3530 mSDtfsCounter, 2843 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2843 SdHoareTripleChecker+Valid, 6061 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:59:38,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2843 Valid, 6061 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-22 01:59:38,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37311 states. [2022-11-22 01:59:41,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37311 to 37253. [2022-11-22 01:59:41,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37253 states, 20921 states have (on average 1.3041919602313465) internal successors, (27285), 22357 states have internal predecessors, (27285), 13855 states have call successors, (13855), 2476 states have call predecessors, (13855), 2476 states have return successors, (14152), 12799 states have call predecessors, (14152), 13855 states have call successors, (14152) [2022-11-22 01:59:41,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37253 states to 37253 states and 55292 transitions. [2022-11-22 01:59:41,510 INFO L78 Accepts]: Start accepts. Automaton has 37253 states and 55292 transitions. Word has length 328 [2022-11-22 01:59:41,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:59:41,514 INFO L495 AbstractCegarLoop]: Abstraction has 37253 states and 55292 transitions. [2022-11-22 01:59:41,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-22 01:59:41,515 INFO L276 IsEmpty]: Start isEmpty. Operand 37253 states and 55292 transitions. [2022-11-22 01:59:41,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-11-22 01:59:41,576 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:59:41,577 INFO L195 NwaCegarLoop]: trace histogram [17, 15, 15, 15, 15, 15, 15, 12, 3, 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] [2022-11-22 01:59:41,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:59:41,577 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:59:41,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:59:41,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1679197689, now seen corresponding path program 1 times [2022-11-22 01:59:41,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:59:41,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957538126] [2022-11-22 01:59:41,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:59:41,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:59:41,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:59:42,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1051 trivial. 0 not checked. [2022-11-22 01:59:42,486 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:59:42,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957538126] [2022-11-22 01:59:42,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957538126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:59:42,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:59:42,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:59:42,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104189614] [2022-11-22 01:59:42,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:59:42,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:59:42,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:59:42,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:59:42,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:59:42,490 INFO L87 Difference]: Start difference. First operand 37253 states and 55292 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-22 01:59:50,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:59:50,122 INFO L93 Difference]: Finished difference Result 111661 states and 165724 transitions. [2022-11-22 01:59:50,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:59:50,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 350 [2022-11-22 01:59:50,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:59:50,699 INFO L225 Difference]: With dead ends: 111661 [2022-11-22 01:59:50,700 INFO L226 Difference]: Without dead ends: 74439 [2022-11-22 01:59:51,152 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 01:59:51,153 INFO L413 NwaCegarLoop]: 3747 mSDtfsCounter, 2870 mSDsluCounter, 2583 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2870 SdHoareTripleChecker+Valid, 6330 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:59:51,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2870 Valid, 6330 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-22 01:59:51,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74439 states. [2022-11-22 01:59:55,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74439 to 74389. [2022-11-22 01:59:55,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74389 states, 41765 states have (on average 1.30360349575003) internal successors, (54445), 44673 states have internal predecessors, (54445), 27671 states have call successors, (27671), 4952 states have call predecessors, (27671), 4952 states have return successors, (28265), 25523 states have call predecessors, (28265), 27671 states have call successors, (28265) [2022-11-22 01:59:56,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74389 states to 74389 states and 110381 transitions. [2022-11-22 01:59:56,801 INFO L78 Accepts]: Start accepts. Automaton has 74389 states and 110381 transitions. Word has length 350 [2022-11-22 01:59:56,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:59:56,802 INFO L495 AbstractCegarLoop]: Abstraction has 74389 states and 110381 transitions. [2022-11-22 01:59:56,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-22 01:59:56,803 INFO L276 IsEmpty]: Start isEmpty. Operand 74389 states and 110381 transitions. [2022-11-22 01:59:56,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-11-22 01:59:56,903 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:59:56,903 INFO L195 NwaCegarLoop]: trace histogram [21, 15, 15, 15, 15, 15, 15, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:59:56,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:59:56,904 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:59:56,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:59:56,905 INFO L85 PathProgramCache]: Analyzing trace with hash 872115786, now seen corresponding path program 1 times [2022-11-22 01:59:56,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:59:56,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394477742] [2022-11-22 01:59:56,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:59:56,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:59:57,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:00:02,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1193 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1193 trivial. 0 not checked. [2022-11-22 02:00:02,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:00:02,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394477742] [2022-11-22 02:00:02,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394477742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:00:02,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:00:02,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 02:00:02,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738864506] [2022-11-22 02:00:02,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:00:02,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:00:02,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:00:02,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:00:02,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:00:02,527 INFO L87 Difference]: Start difference. First operand 74389 states and 110381 transitions. Second operand has 6 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-22 02:00:17,413 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 02:00:23,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:00:23,080 INFO L93 Difference]: Finished difference Result 128959 states and 191594 transitions. [2022-11-22 02:00:23,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 02:00:23,081 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 300 [2022-11-22 02:00:23,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:00:24,307 INFO L225 Difference]: With dead ends: 128959 [2022-11-22 02:00:24,308 INFO L226 Difference]: Without dead ends: 128957 [2022-11-22 02:00:24,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-22 02:00:24,388 INFO L413 NwaCegarLoop]: 3501 mSDtfsCounter, 2210 mSDsluCounter, 11878 mSDsCounter, 0 mSdLazyCounter, 3332 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2211 SdHoareTripleChecker+Valid, 15379 SdHoareTripleChecker+Invalid, 3336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3332 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:00:24,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2211 Valid, 15379 Invalid, 3336 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 3332 Invalid, 1 Unknown, 0 Unchecked, 11.8s Time] [2022-11-22 02:00:24,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128957 states. [2022-11-22 02:00:34,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128957 to 128753. [2022-11-22 02:00:35,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128753 states, 72901 states have (on average 1.3156609648701665) internal successors, (95913), 78189 states have internal predecessors, (95913), 47167 states have call successors, (47167), 8776 states have call predecessors, (47167), 8684 states have return successors, (48213), 42927 states have call predecessors, (48213), 47167 states have call successors, (48213)