./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 8393723b 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_a3a75a98-a35a-40e2-922d-3800c0e26025/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3a75a98-a35a-40e2-922d-3800c0e26025/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3a75a98-a35a-40e2-922d-3800c0e26025/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3a75a98-a35a-40e2-922d-3800c0e26025/bin/utaipan-I9t0OCRTmS/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_a3a75a98-a35a-40e2-922d-3800c0e26025/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3a75a98-a35a-40e2-922d-3800c0e26025/bin/utaipan-I9t0OCRTmS --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-8393723 [2022-11-19 06:39:24,734 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:39:24,737 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:39:24,771 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:39:24,772 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:39:24,776 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:39:24,778 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:39:24,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:39:24,786 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:39:24,794 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:39:24,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:39:24,797 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:39:24,798 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:39:24,800 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:39:24,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:39:24,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:39:24,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:39:24,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:39:24,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:39:24,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:39:24,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:39:24,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:39:24,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:39:24,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:39:24,829 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:39:24,829 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:39:24,829 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:39:24,831 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:39:24,832 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:39:24,833 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:39:24,834 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:39:24,835 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:39:24,836 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:39:24,837 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:39:24,838 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:39:24,839 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:39:24,839 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:39:24,839 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:39:24,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:39:24,841 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:39:24,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:39:24,842 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3a75a98-a35a-40e2-922d-3800c0e26025/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 06:39:24,874 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:39:24,875 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:39:24,876 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:39:24,876 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:39:24,877 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:39:24,877 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:39:24,878 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:39:24,878 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:39:24,878 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:39:24,878 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:39:24,879 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:39:24,879 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:39:24,880 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:39:24,880 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:39:24,880 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:39:24,880 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:39:24,881 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:39:24,881 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:39:24,882 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:39:24,882 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:39:24,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:39:24,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:39:24,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:39:24,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:39:24,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:39:24,883 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:39:24,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:39:24,883 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:39:24,884 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:39:24,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:39:24,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:39:24,884 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:39:24,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:39:24,885 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:39:24,885 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:39:24,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:39:24,886 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:39:24,886 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:39:24,886 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_a3a75a98-a35a-40e2-922d-3800c0e26025/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3a75a98-a35a-40e2-922d-3800c0e26025/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e81fc6166b432b951460f7a3a0e3bbe6d1e1e00a7297f549296af2cd8a39c75 [2022-11-19 06:39:25,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:39:25,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:39:25,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:39:25,227 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:39:25,227 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:39:25,229 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3a75a98-a35a-40e2-922d-3800c0e26025/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i [2022-11-19 06:39:25,307 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3a75a98-a35a-40e2-922d-3800c0e26025/bin/utaipan-I9t0OCRTmS/data/f5bdc067b/09dc32bb5e924f5f9026d66931b75f26/FLAGfe098f87a [2022-11-19 06:39:26,426 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:39:26,427 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3a75a98-a35a-40e2-922d-3800c0e26025/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i [2022-11-19 06:39:26,504 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3a75a98-a35a-40e2-922d-3800c0e26025/bin/utaipan-I9t0OCRTmS/data/f5bdc067b/09dc32bb5e924f5f9026d66931b75f26/FLAGfe098f87a [2022-11-19 06:39:26,718 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3a75a98-a35a-40e2-922d-3800c0e26025/bin/utaipan-I9t0OCRTmS/data/f5bdc067b/09dc32bb5e924f5f9026d66931b75f26 [2022-11-19 06:39:26,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:39:26,723 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:39:26,727 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:39:26,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:39:26,732 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:39:26,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:39:26" (1/1) ... [2022-11-19 06:39:26,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@441c4a31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:26, skipping insertion in model container [2022-11-19 06:39:26,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:39:26" (1/1) ... [2022-11-19 06:39:26,745 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:39:26,960 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:39:30,950 WARN L234 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_a3a75a98-a35a-40e2-922d-3800c0e26025/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395259,395272] [2022-11-19 06:39:30,957 WARN L234 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_a3a75a98-a35a-40e2-922d-3800c0e26025/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395404,395417] [2022-11-19 06:39:30,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:39:31,027 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:39:32,131 WARN L234 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_a3a75a98-a35a-40e2-922d-3800c0e26025/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395259,395272] [2022-11-19 06:39:32,132 WARN L234 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_a3a75a98-a35a-40e2-922d-3800c0e26025/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395404,395417] [2022-11-19 06:39:32,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:39:32,374 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:39:32,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:32 WrapperNode [2022-11-19 06:39:32,375 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:39:32,376 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:39:32,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:39:32,376 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:39:32,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:32" (1/1) ... [2022-11-19 06:39:32,519 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:32" (1/1) ... [2022-11-19 06:39:32,755 INFO L138 Inliner]: procedures = 493, calls = 2689, calls flagged for inlining = 240, calls inlined = 225, statements flattened = 5170 [2022-11-19 06:39:32,756 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:39:32,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:39:32,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:39:32,758 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:39:32,769 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:32" (1/1) ... [2022-11-19 06:39:32,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:32" (1/1) ... [2022-11-19 06:39:32,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:32" (1/1) ... [2022-11-19 06:39:32,830 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:32" (1/1) ... [2022-11-19 06:39:33,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:32" (1/1) ... [2022-11-19 06:39:33,078 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:32" (1/1) ... [2022-11-19 06:39:33,119 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:32" (1/1) ... [2022-11-19 06:39:33,133 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:32" (1/1) ... [2022-11-19 06:39:33,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:39:33,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:39:33,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:39:33,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:39:33,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:32" (1/1) ... [2022-11-19 06:39:33,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:39:33,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3a75a98-a35a-40e2-922d-3800c0e26025/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:39:33,221 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3a75a98-a35a-40e2-922d-3800c0e26025/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:39:33,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3a75a98-a35a-40e2-922d-3800c0e26025/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:39:33,277 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_running_reset [2022-11-19 06:39:33,277 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_running_reset [2022-11-19 06:39:33,277 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-19 06:39:33,278 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-19 06:39:33,278 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_crc_length [2022-11-19 06:39:33,278 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_crc_length [2022-11-19 06:39:33,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 06:39:33,278 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 06:39:33,279 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dec_reset [2022-11-19 06:39:33,279 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dec_reset [2022-11-19 06:39:33,279 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_get_link_status [2022-11-19 06:39:33,279 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_get_link_status [2022-11-19 06:39:33,279 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-19 06:39:33,280 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-19 06:39:33,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_87 [2022-11-19 06:39:33,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_87 [2022-11-19 06:39:33,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 06:39:33,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 06:39:33,281 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_default [2022-11-19 06:39:33,281 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_default [2022-11-19 06:39:33,281 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkinput [2022-11-19 06:39:33,281 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkinput [2022-11-19 06:39:33,281 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_status [2022-11-19 06:39:33,282 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_status [2022-11-19 06:39:33,282 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_100ft [2022-11-19 06:39:33,282 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_100ft [2022-11-19 06:39:33,282 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dummy_set_1 [2022-11-19 06:39:33,282 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dummy_set_1 [2022-11-19 06:39:33,282 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-19 06:39:33,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-19 06:39:33,283 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_close [2022-11-19 06:39:33,283 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_close [2022-11-19 06:39:33,283 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_watchdog [2022-11-19 06:39:33,283 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_watchdog [2022-11-19 06:39:33,284 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_reset [2022-11-19 06:39:33,284 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_reset [2022-11-19 06:39:33,284 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_sc [2022-11-19 06:39:33,284 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_sc [2022-11-19 06:39:33,284 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_netif [2022-11-19 06:39:33,285 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_netif [2022-11-19 06:39:33,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 06:39:33,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 06:39:33,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 06:39:33,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 06:39:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_trace [2022-11-19 06:39:33,286 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_trace [2022-11-19 06:39:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_get_link_status [2022-11-19 06:39:33,286 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_get_link_status [2022-11-19 06:39:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 06:39:33,287 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-19 06:39:33,287 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-19 06:39:33,287 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 06:39:33,287 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 06:39:33,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 06:39:33,288 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-19 06:39:33,288 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-19 06:39:33,288 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_default [2022-11-19 06:39:33,288 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_default [2022-11-19 06:39:33,288 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_clock [2022-11-19 06:39:33,289 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_clock [2022-11-19 06:39:33,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 06:39:33,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 06:39:33,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 06:39:33,289 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_off [2022-11-19 06:39:33,289 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_off [2022-11-19 06:39:33,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 06:39:33,290 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2022-11-19 06:39:33,290 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2022-11-19 06:39:33,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-19 06:39:33,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-19 06:39:33,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-19 06:39:33,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-19 06:39:33,291 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_default [2022-11-19 06:39:33,291 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_default [2022-11-19 06:39:33,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-19 06:39:33,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-19 06:39:33,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-19 06:39:33,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-19 06:39:33,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-19 06:39:33,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-19 06:39:33,292 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_softreset [2022-11-19 06:39:33,293 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_softreset [2022-11-19 06:39:33,293 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110_bit [2022-11-19 06:39:33,293 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110_bit [2022-11-19 06:39:33,293 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-19 06:39:33,293 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-19 06:39:33,294 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-19 06:39:33,294 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-19 06:39:33,294 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_crc_length [2022-11-19 06:39:33,294 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_crc_length [2022-11-19 06:39:33,294 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_writereg [2022-11-19 06:39:33,295 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_writereg [2022-11-19 06:39:33,295 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2022-11-19 06:39:33,295 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2022-11-19 06:39:33,295 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_status [2022-11-19 06:39:33,295 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_status [2022-11-19 06:39:33,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 06:39:33,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-19 06:39:33,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-19 06:39:33,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-19 06:39:33,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-19 06:39:33,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:39:33,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 06:39:33,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 06:39:33,297 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 06:39:33,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 06:39:33,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lmc_lock_of_lmc___softc [2022-11-19 06:39:33,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lmc_lock_of_lmc___softc [2022-11-19 06:39:33,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 06:39:33,298 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_readreg [2022-11-19 06:39:33,298 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_readreg [2022-11-19 06:39:33,298 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 06:39:33,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 06:39:33,299 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-19 06:39:33,299 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-19 06:39:33,299 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 06:39:33,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 06:39:33,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-19 06:39:33,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-19 06:39:33,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-19 06:39:33,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-19 06:39:33,300 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_init [2022-11-19 06:39:33,300 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_init [2022-11-19 06:39:33,301 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-19 06:39:33,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-19 06:39:33,301 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_open [2022-11-19 06:39:33,301 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_open [2022-11-19 06:39:33,301 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-19 06:39:33,301 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-19 06:39:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-19 06:39:33,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-19 06:39:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_watchdog [2022-11-19 06:39:33,302 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_watchdog [2022-11-19 06:39:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_status [2022-11-19 06:39:33,303 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_status [2022-11-19 06:39:33,303 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_set_protocol [2022-11-19 06:39:33,303 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_set_protocol [2022-11-19 06:39:33,303 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_clock [2022-11-19 06:39:33,303 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_clock [2022-11-19 06:39:33,303 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-19 06:39:33,304 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-19 06:39:33,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:39:33,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:39:33,304 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_open [2022-11-19 06:39:33,304 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_open [2022-11-19 06:39:33,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 06:39:33,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 06:39:33,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 06:39:33,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 06:39:33,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_lmc_driver_exit_17_2 [2022-11-19 06:39:33,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_lmc_driver_exit_17_2 [2022-11-19 06:39:33,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-19 06:39:33,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-19 06:39:33,306 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_get_link_status [2022-11-19 06:39:33,306 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_get_link_status [2022-11-19 06:39:33,306 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_circuit_type [2022-11-19 06:39:33,307 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_circuit_type [2022-11-19 06:39:33,307 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_status [2022-11-19 06:39:33,307 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_status [2022-11-19 06:39:33,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 06:39:33,307 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 06:39:33,307 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_get_link_status [2022-11-19 06:39:33,308 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_get_link_status [2022-11-19 06:39:33,308 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_init [2022-11-19 06:39:33,308 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_init [2022-11-19 06:39:33,308 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-19 06:39:33,308 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-19 06:39:33,308 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_scram [2022-11-19 06:39:33,309 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_scram [2022-11-19 06:39:33,309 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_init [2022-11-19 06:39:33,309 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_init [2022-11-19 06:39:33,309 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkoutput [2022-11-19 06:39:33,309 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkoutput [2022-11-19 06:39:33,309 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-19 06:39:33,310 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-19 06:39:33,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 06:39:33,310 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_driver_timeout [2022-11-19 06:39:33,310 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_driver_timeout [2022-11-19 06:39:33,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lmc_lock_of_lmc___softc [2022-11-19 06:39:33,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lmc_lock_of_lmc___softc [2022-11-19 06:39:33,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 06:39:33,311 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-19 06:39:33,311 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-19 06:39:33,311 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110 [2022-11-19 06:39:33,311 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110 [2022-11-19 06:39:33,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 06:39:33,312 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-19 06:39:33,312 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-19 06:39:33,312 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_speed [2022-11-19 06:39:33,312 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_speed [2022-11-19 06:39:33,312 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_crc_length [2022-11-19 06:39:33,313 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_crc_length [2022-11-19 06:39:33,313 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-19 06:39:33,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-19 06:39:33,313 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_type [2022-11-19 06:39:33,313 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_type [2022-11-19 06:39:33,313 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_remove_one [2022-11-19 06:39:33,314 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_remove_one [2022-11-19 06:39:33,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 06:39:33,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 06:39:33,314 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-19 06:39:33,314 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-19 06:39:33,314 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_write [2022-11-19 06:39:33,315 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_write [2022-11-19 06:39:33,315 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_close [2022-11-19 06:39:33,315 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_close [2022-11-19 06:39:33,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-19 06:39:33,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-19 06:39:33,316 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-19 06:39:33,316 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-19 06:39:33,316 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 06:39:33,316 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 06:39:33,316 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_link_status [2022-11-19 06:39:33,316 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_link_status [2022-11-19 06:39:33,317 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_watchdog [2022-11-19 06:39:33,317 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_watchdog [2022-11-19 06:39:33,317 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 06:39:33,317 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 06:39:33,317 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_watchdog [2022-11-19 06:39:33,317 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_watchdog [2022-11-19 06:39:33,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 06:39:33,318 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-19 06:39:33,318 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-19 06:39:33,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 06:39:33,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 06:39:33,318 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_link_status [2022-11-19 06:39:33,319 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_link_status [2022-11-19 06:39:33,319 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_init [2022-11-19 06:39:33,319 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_init [2022-11-19 06:39:33,319 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_attach [2022-11-19 06:39:33,319 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_attach [2022-11-19 06:39:33,319 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_default [2022-11-19 06:39:33,320 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_default [2022-11-19 06:39:33,320 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-19 06:39:33,320 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-19 06:39:33,320 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_crc_length [2022-11-19 06:39:33,320 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_crc_length [2022-11-19 06:39:33,320 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_clock [2022-11-19 06:39:33,321 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_clock [2022-11-19 06:39:33,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 06:39:33,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 06:39:33,325 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dummy_set2_1 [2022-11-19 06:39:33,325 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dummy_set2_1 [2022-11-19 06:39:33,326 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_on [2022-11-19 06:39:33,327 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_on [2022-11-19 06:39:33,327 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-19 06:39:33,331 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-19 06:39:33,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:39:33,331 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-19 06:39:33,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-19 06:39:33,332 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-11-19 06:39:33,332 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-11-19 06:39:33,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-19 06:39:33,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-19 06:39:33,332 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2022-11-19 06:39:33,332 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2022-11-19 06:39:34,349 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:39:34,353 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:39:34,790 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 06:39:36,706 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint switch_break: call #t~mem1246#1.base, #t~mem1246#1.offset := read~$Pointer$(~sc#1.base, 141 + ~sc#1.offset, 8); [2022-11-19 06:39:36,706 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L12895: SUMMARY for call lmc_trace(#t~mem1246#1.base, #t~mem1246#1.offset, 129, 0); srcloc: null [2022-11-19 06:39:36,706 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L12895-1: havoc #t~mem1246#1.base, #t~mem1246#1.offset; [2022-11-19 06:39:41,907 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-19 06:39:42,243 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:39:44,423 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:39:44,423 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 06:39:44,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:39:44 BoogieIcfgContainer [2022-11-19 06:39:44,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:39:44,434 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:39:44,435 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:39:44,439 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:39:44,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:39:26" (1/3) ... [2022-11-19 06:39:44,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dd60060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:39:44, skipping insertion in model container [2022-11-19 06:39:44,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:32" (2/3) ... [2022-11-19 06:39:44,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dd60060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:39:44, skipping insertion in model container [2022-11-19 06:39:44,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:39:44" (3/3) ... [2022-11-19 06:39:44,445 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i [2022-11-19 06:39:44,470 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:39:44,470 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 06:39:44,605 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:39:44,614 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;@7cdacab3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:39:44,615 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 06:39:44,628 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) [2022-11-19 06:39:44,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-19 06:39:44,693 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:39:44,694 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] [2022-11-19 06:39:44,695 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:39:44,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:39:44,701 INFO L85 PathProgramCache]: Analyzing trace with hash 2054296416, now seen corresponding path program 1 times [2022-11-19 06:39:44,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:39:44,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081249946] [2022-11-19 06:39:44,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:39:44,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:39:45,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:39:46,002 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-19 06:39:46,003 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:39:46,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081249946] [2022-11-19 06:39:46,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081249946] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:39:46,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:39:46,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:39:46,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027831753] [2022-11-19 06:39:46,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:39:46,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:39:46,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:39:46,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:39:46,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:39:46,064 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) [2022-11-19 06:39:50,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:39:50,257 INFO L93 Difference]: Finished difference Result 5785 states and 8722 transitions. [2022-11-19 06:39:50,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:39:50,261 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 [2022-11-19 06:39:50,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:39:50,316 INFO L225 Difference]: With dead ends: 5785 [2022-11-19 06:39:50,316 INFO L226 Difference]: Without dead ends: 3746 [2022-11-19 06:39:50,341 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 [2022-11-19 06:39:50,344 INFO L413 NwaCegarLoop]: 3403 mSDtfsCounter, 2683 mSDsluCounter, 2600 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2683 SdHoareTripleChecker+Valid, 6003 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-19 06:39:50,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2683 Valid, 6003 Invalid, 790 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-19 06:39:50,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3746 states. [2022-11-19 06:39:50,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3746 to 3743. [2022-11-19 06:39:50,745 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) [2022-11-19 06:39:50,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3743 states to 3743 states and 5574 transitions. [2022-11-19 06:39:50,796 INFO L78 Accepts]: Start accepts. Automaton has 3743 states and 5574 transitions. Word has length 189 [2022-11-19 06:39:50,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:39:50,801 INFO L495 AbstractCegarLoop]: Abstraction has 3743 states and 5574 transitions. [2022-11-19 06:39:50,801 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) [2022-11-19 06:39:50,802 INFO L276 IsEmpty]: Start isEmpty. Operand 3743 states and 5574 transitions. [2022-11-19 06:39:50,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-11-19 06:39:50,837 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:39:50,838 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] [2022-11-19 06:39:50,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:39:50,838 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:39:50,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:39:50,839 INFO L85 PathProgramCache]: Analyzing trace with hash -101888884, now seen corresponding path program 1 times [2022-11-19 06:39:50,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:39:50,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933857777] [2022-11-19 06:39:50,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:39:50,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:39:51,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:39:51,512 INFO L134 CoverageAnalysis]: Checked inductivity of 876 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 876 trivial. 0 not checked. [2022-11-19 06:39:51,512 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:39:51,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933857777] [2022-11-19 06:39:51,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933857777] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:39:51,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:39:51,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:39:51,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392476868] [2022-11-19 06:39:51,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:39:51,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:39:51,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:39:51,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:39:51,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:39:51,519 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) [2022-11-19 06:39:55,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:39:56,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:39:56,157 INFO L93 Difference]: Finished difference Result 10501 states and 15613 transitions. [2022-11-19 06:39:56,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:39:56,158 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 [2022-11-19 06:39:56,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:39:56,240 INFO L225 Difference]: With dead ends: 10501 [2022-11-19 06:39:56,241 INFO L226 Difference]: Without dead ends: 6789 [2022-11-19 06:39:56,276 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 [2022-11-19 06:39:56,277 INFO L413 NwaCegarLoop]: 3214 mSDtfsCounter, 2384 mSDsluCounter, 2552 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2384 SdHoareTripleChecker+Valid, 5766 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:39:56,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2384 Valid, 5766 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-19 06:39:56,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6789 states. [2022-11-19 06:39:56,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6789 to 6780. [2022-11-19 06:39:56,861 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) [2022-11-19 06:39:56,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6780 states to 6780 states and 10067 transitions. [2022-11-19 06:39:56,939 INFO L78 Accepts]: Start accepts. Automaton has 6780 states and 10067 transitions. Word has length 238 [2022-11-19 06:39:56,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:39:56,940 INFO L495 AbstractCegarLoop]: Abstraction has 6780 states and 10067 transitions. [2022-11-19 06:39:56,940 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) [2022-11-19 06:39:56,941 INFO L276 IsEmpty]: Start isEmpty. Operand 6780 states and 10067 transitions. [2022-11-19 06:39:56,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-19 06:39:56,962 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:39:56,962 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] [2022-11-19 06:39:56,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 06:39:56,963 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:39:56,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:39:56,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1204581737, now seen corresponding path program 1 times [2022-11-19 06:39:56,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:39:56,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671208536] [2022-11-19 06:39:56,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:39:56,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:39:57,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:39:57,388 INFO L134 CoverageAnalysis]: Checked inductivity of 896 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 896 trivial. 0 not checked. [2022-11-19 06:39:57,389 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:39:57,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671208536] [2022-11-19 06:39:57,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671208536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:39:57,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:39:57,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:39:57,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715578418] [2022-11-19 06:39:57,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:39:57,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:39:57,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:39:57,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:39:57,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:39:57,392 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) [2022-11-19 06:40:01,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:40:01,952 INFO L93 Difference]: Finished difference Result 19762 states and 29366 transitions. [2022-11-19 06:40:01,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:40:01,953 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 [2022-11-19 06:40:01,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:40:02,103 INFO L225 Difference]: With dead ends: 19762 [2022-11-19 06:40:02,103 INFO L226 Difference]: Without dead ends: 13013 [2022-11-19 06:40:02,158 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 [2022-11-19 06:40:02,162 INFO L413 NwaCegarLoop]: 3304 mSDtfsCounter, 2690 mSDsluCounter, 2579 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2690 SdHoareTripleChecker+Valid, 5883 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-19 06:40:02,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2690 Valid, 5883 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-19 06:40:02,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13013 states. [2022-11-19 06:40:03,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13013 to 13003. [2022-11-19 06:40:03,080 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) [2022-11-19 06:40:03,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13003 states to 13003 states and 19324 transitions. [2022-11-19 06:40:03,386 INFO L78 Accepts]: Start accepts. Automaton has 13003 states and 19324 transitions. Word has length 248 [2022-11-19 06:40:03,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:40:03,389 INFO L495 AbstractCegarLoop]: Abstraction has 13003 states and 19324 transitions. [2022-11-19 06:40:03,390 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) [2022-11-19 06:40:03,390 INFO L276 IsEmpty]: Start isEmpty. Operand 13003 states and 19324 transitions. [2022-11-19 06:40:03,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-11-19 06:40:03,414 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:40:03,414 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] [2022-11-19 06:40:03,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 06:40:03,415 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:40:03,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:40:03,417 INFO L85 PathProgramCache]: Analyzing trace with hash -66716136, now seen corresponding path program 1 times [2022-11-19 06:40:03,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:40:03,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089525895] [2022-11-19 06:40:03,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:40:03,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:40:03,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:40:03,941 INFO L134 CoverageAnalysis]: Checked inductivity of 1005 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1002 trivial. 0 not checked. [2022-11-19 06:40:03,941 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:40:03,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089525895] [2022-11-19 06:40:03,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089525895] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:40:03,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:40:03,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:40:03,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295104209] [2022-11-19 06:40:03,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:40:03,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:40:03,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:40:03,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:40:03,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:40:03,945 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) [2022-11-19 06:40:10,243 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 [] [2022-11-19 06:40:10,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:40:10,912 INFO L93 Difference]: Finished difference Result 32121 states and 47771 transitions. [2022-11-19 06:40:10,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:40:10,914 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 [2022-11-19 06:40:10,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:40:11,116 INFO L225 Difference]: With dead ends: 32121 [2022-11-19 06:40:11,116 INFO L226 Difference]: Without dead ends: 19149 [2022-11-19 06:40:11,240 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 [2022-11-19 06:40:11,241 INFO L413 NwaCegarLoop]: 4885 mSDtfsCounter, 2630 mSDsluCounter, 2530 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2630 SdHoareTripleChecker+Valid, 7415 SdHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-19 06:40:11,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2630 Valid, 7415 Invalid, 1090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1074 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-11-19 06:40:11,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19149 states. [2022-11-19 06:40:12,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19149 to 19143. [2022-11-19 06:40:12,717 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) [2022-11-19 06:40:13,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19143 states to 19143 states and 28428 transitions. [2022-11-19 06:40:13,113 INFO L78 Accepts]: Start accepts. Automaton has 19143 states and 28428 transitions. Word has length 238 [2022-11-19 06:40:13,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:40:13,115 INFO L495 AbstractCegarLoop]: Abstraction has 19143 states and 28428 transitions. [2022-11-19 06:40:13,115 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) [2022-11-19 06:40:13,115 INFO L276 IsEmpty]: Start isEmpty. Operand 19143 states and 28428 transitions. [2022-11-19 06:40:13,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-11-19 06:40:13,142 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:40:13,142 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] [2022-11-19 06:40:13,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 06:40:13,143 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:40:13,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:40:13,144 INFO L85 PathProgramCache]: Analyzing trace with hash -654137454, now seen corresponding path program 1 times [2022-11-19 06:40:13,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:40:13,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648520082] [2022-11-19 06:40:13,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:40:13,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:40:13,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:40:13,680 INFO L134 CoverageAnalysis]: Checked inductivity of 1016 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1016 trivial. 0 not checked. [2022-11-19 06:40:13,680 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:40:13,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648520082] [2022-11-19 06:40:13,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648520082] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:40:13,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:40:13,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:40:13,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660097648] [2022-11-19 06:40:13,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:40:13,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:40:13,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:40:13,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:40:13,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:40:13,684 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) [2022-11-19 06:40:19,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:40:19,148 INFO L93 Difference]: Finished difference Result 56423 states and 83743 transitions. [2022-11-19 06:40:19,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:40:19,149 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 [2022-11-19 06:40:19,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:40:19,800 INFO L225 Difference]: With dead ends: 56423 [2022-11-19 06:40:19,800 INFO L226 Difference]: Without dead ends: 37311 [2022-11-19 06:40:19,922 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 [2022-11-19 06:40:19,923 INFO L413 NwaCegarLoop]: 3518 mSDtfsCounter, 2843 mSDsluCounter, 2526 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2843 SdHoareTripleChecker+Valid, 6044 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:40:19,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2843 Valid, 6044 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-19 06:40:19,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37311 states. [2022-11-19 06:40:22,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37311 to 37253. [2022-11-19 06:40:23,066 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) [2022-11-19 06:40:23,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37253 states to 37253 states and 55292 transitions. [2022-11-19 06:40:23,735 INFO L78 Accepts]: Start accepts. Automaton has 37253 states and 55292 transitions. Word has length 328 [2022-11-19 06:40:23,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:40:23,740 INFO L495 AbstractCegarLoop]: Abstraction has 37253 states and 55292 transitions. [2022-11-19 06:40:23,740 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) [2022-11-19 06:40:23,740 INFO L276 IsEmpty]: Start isEmpty. Operand 37253 states and 55292 transitions. [2022-11-19 06:40:23,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-11-19 06:40:23,797 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:40:23,797 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] [2022-11-19 06:40:23,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 06:40:23,798 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:40:23,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:40:23,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1913791430, now seen corresponding path program 1 times [2022-11-19 06:40:23,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:40:23,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096192303] [2022-11-19 06:40:23,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:40:23,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:40:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:40:24,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1051 trivial. 0 not checked. [2022-11-19 06:40:24,557 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:40:24,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096192303] [2022-11-19 06:40:24,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096192303] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:40:24,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:40:24,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:40:24,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452357391] [2022-11-19 06:40:24,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:40:24,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:40:24,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:40:24,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:40:24,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:40:24,562 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) [2022-11-19 06:40:32,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:40:32,120 INFO L93 Difference]: Finished difference Result 111661 states and 165724 transitions. [2022-11-19 06:40:32,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:40:32,125 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 [2022-11-19 06:40:32,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:40:32,829 INFO L225 Difference]: With dead ends: 111661 [2022-11-19 06:40:32,829 INFO L226 Difference]: Without dead ends: 74439 [2022-11-19 06:40:33,076 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 [2022-11-19 06:40:33,077 INFO L413 NwaCegarLoop]: 3739 mSDtfsCounter, 2870 mSDsluCounter, 2577 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2870 SdHoareTripleChecker+Valid, 6316 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-19 06:40:33,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2870 Valid, 6316 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-19 06:40:33,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74439 states. [2022-11-19 06:40:37,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74439 to 74389. [2022-11-19 06:40:37,550 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) [2022-11-19 06:40:38,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74389 states to 74389 states and 110381 transitions. [2022-11-19 06:40:38,497 INFO L78 Accepts]: Start accepts. Automaton has 74389 states and 110381 transitions. Word has length 350 [2022-11-19 06:40:38,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:40:38,498 INFO L495 AbstractCegarLoop]: Abstraction has 74389 states and 110381 transitions. [2022-11-19 06:40:38,498 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) [2022-11-19 06:40:38,499 INFO L276 IsEmpty]: Start isEmpty. Operand 74389 states and 110381 transitions. [2022-11-19 06:40:38,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-11-19 06:40:38,590 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:40:38,590 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] [2022-11-19 06:40:38,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 06:40:38,591 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:40:38,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:40:38,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1386327685, now seen corresponding path program 1 times [2022-11-19 06:40:38,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:40:38,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68280884] [2022-11-19 06:40:38,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:40:38,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:40:38,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:40:45,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1193 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1193 trivial. 0 not checked. [2022-11-19 06:40:45,216 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:40:45,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68280884] [2022-11-19 06:40:45,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68280884] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:40:45,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:40:45,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 06:40:45,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432170140] [2022-11-19 06:40:45,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:40:45,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 06:40:45,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:40:45,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 06:40:45,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 06:40:45,220 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) [2022-11-19 06:40:57,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:41:05,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:41:05,978 INFO L93 Difference]: Finished difference Result 128959 states and 191594 transitions. [2022-11-19 06:41:05,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 06:41:05,979 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 [2022-11-19 06:41:05,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:41:07,229 INFO L225 Difference]: With dead ends: 128959 [2022-11-19 06:41:07,230 INFO L226 Difference]: Without dead ends: 128957 [2022-11-19 06:41:07,306 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 [2022-11-19 06:41:07,307 INFO L413 NwaCegarLoop]: 3493 mSDtfsCounter, 2210 mSDsluCounter, 11848 mSDsCounter, 0 mSdLazyCounter, 3371 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2211 SdHoareTripleChecker+Valid, 15341 SdHoareTripleChecker+Invalid, 3374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-11-19 06:41:07,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2211 Valid, 15341 Invalid, 3374 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 3371 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2022-11-19 06:41:07,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128957 states.