./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149d22b6-3c1b-4205-8f1a-5fd5e6c16e0c/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149d22b6-3c1b-4205-8f1a-5fd5e6c16e0c/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_149d22b6-3c1b-4205-8f1a-5fd5e6c16e0c/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149d22b6-3c1b-4205-8f1a-5fd5e6c16e0c/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149d22b6-3c1b-4205-8f1a-5fd5e6c16e0c/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_149d22b6-3c1b-4205-8f1a-5fd5e6c16e0c/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 45acb2c796116b4df93c0e090b1e242e2e986b4d7b1240180279cd2f8660db26 --- 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 06:39:18,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:39:18,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:39:18,605 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:39:18,606 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:39:18,607 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:39:18,609 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:39:18,611 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:39:18,613 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:39:18,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:39:18,615 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:39:18,617 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:39:18,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:39:18,619 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:39:18,620 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:39:18,622 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:39:18,623 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:39:18,624 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:39:18,626 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:39:18,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:39:18,631 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:39:18,633 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:39:18,634 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:39:18,635 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:39:18,640 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:39:18,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:39:18,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:39:18,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:39:18,643 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:39:18,644 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:39:18,645 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:39:18,646 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:39:18,661 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:39:18,662 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:39:18,663 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:39:18,664 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:39:18,665 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:39:18,665 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:39:18,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:39:18,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:39:18,668 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:39:18,669 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149d22b6-3c1b-4205-8f1a-5fd5e6c16e0c/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 06:39:18,709 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:39:18,714 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:39:18,716 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:39:18,716 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:39:18,718 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:39:18,719 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:39:18,719 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:39:18,719 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:39:18,720 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:39:18,720 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:39:18,721 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:39:18,722 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:39:18,722 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:39:18,722 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:39:18,722 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:39:18,723 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:39:18,723 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:39:18,723 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:39:18,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:39:18,725 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:39:18,725 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:39:18,725 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:39:18,725 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:39:18,727 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:39:18,728 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:39:18,728 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:39:18,728 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:39:18,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:39:18,729 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:39:18,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:39:18,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:39:18,730 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:39:18,730 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:39:18,731 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:39:18,731 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:39:18,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:39:18,731 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:39:18,732 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:39:18,732 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_149d22b6-3c1b-4205-8f1a-5fd5e6c16e0c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149d22b6-3c1b-4205-8f1a-5fd5e6c16e0c/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45acb2c796116b4df93c0e090b1e242e2e986b4d7b1240180279cd2f8660db26 [2022-11-19 06:39:19,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:39:19,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:39:19,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:39:19,094 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:39:19,095 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:39:19,097 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149d22b6-3c1b-4205-8f1a-5fd5e6c16e0c/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2022-11-19 06:39:19,179 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149d22b6-3c1b-4205-8f1a-5fd5e6c16e0c/bin/utaipan-I9t0OCRTmS/data/93a7833d4/f0366100f0734f4bbb8c2363c9ac2e70/FLAGc706bf826 [2022-11-19 06:39:20,491 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:39:20,491 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149d22b6-3c1b-4205-8f1a-5fd5e6c16e0c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2022-11-19 06:39:20,581 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149d22b6-3c1b-4205-8f1a-5fd5e6c16e0c/bin/utaipan-I9t0OCRTmS/data/93a7833d4/f0366100f0734f4bbb8c2363c9ac2e70/FLAGc706bf826 [2022-11-19 06:39:21,089 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149d22b6-3c1b-4205-8f1a-5fd5e6c16e0c/bin/utaipan-I9t0OCRTmS/data/93a7833d4/f0366100f0734f4bbb8c2363c9ac2e70 [2022-11-19 06:39:21,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:39:21,099 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:39:21,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:39:21,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:39:21,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:39:21,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:39:21" (1/1) ... [2022-11-19 06:39:21,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33b8c85b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:21, skipping insertion in model container [2022-11-19 06:39:21,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:39:21" (1/1) ... [2022-11-19 06:39:21,118 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:39:21,360 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:39:26,617 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_149d22b6-3c1b-4205-8f1a-5fd5e6c16e0c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480731,480744] [2022-11-19 06:39:26,625 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_149d22b6-3c1b-4205-8f1a-5fd5e6c16e0c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480876,480889] [2022-11-19 06:39:26,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:39:26,743 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:39:27,486 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_149d22b6-3c1b-4205-8f1a-5fd5e6c16e0c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480731,480744] [2022-11-19 06:39:27,487 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_149d22b6-3c1b-4205-8f1a-5fd5e6c16e0c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480876,480889] [2022-11-19 06:39:27,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:39:27,877 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:39:27,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:27 WrapperNode [2022-11-19 06:39:27,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:39:27,895 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:39:27,895 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:39:27,895 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:39:27,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:27" (1/1) ... [2022-11-19 06:39:28,137 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:27" (1/1) ... [2022-11-19 06:39:28,629 INFO L138 Inliner]: procedures = 543, calls = 4303, calls flagged for inlining = 248, calls inlined = 232, statements flattened = 9083 [2022-11-19 06:39:28,631 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:39:28,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:39:28,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:39:28,633 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:39:28,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:27" (1/1) ... [2022-11-19 06:39:28,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:27" (1/1) ... [2022-11-19 06:39:28,799 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:27" (1/1) ... [2022-11-19 06:39:28,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:27" (1/1) ... [2022-11-19 06:39:29,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:27" (1/1) ... [2022-11-19 06:39:29,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:27" (1/1) ... [2022-11-19 06:39:29,261 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:27" (1/1) ... [2022-11-19 06:39:29,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:27" (1/1) ... [2022-11-19 06:39:29,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:39:29,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:39:29,405 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:39:29,405 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:39:29,406 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:27" (1/1) ... [2022-11-19 06:39:29,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:39:29,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149d22b6-3c1b-4205-8f1a-5fd5e6c16e0c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:39:29,448 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149d22b6-3c1b-4205-8f1a-5fd5e6c16e0c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:39:29,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149d22b6-3c1b-4205-8f1a-5fd5e6c16e0c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:39:29,502 INFO L130 BoogieDeclarations]: Found specification of procedure disable_ast [2022-11-19 06:39:29,502 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_ast [2022-11-19 06:39:29,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_92 [2022-11-19 06:39:29,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_92 [2022-11-19 06:39:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 06:39:29,503 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 06:39:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-19 06:39:29,503 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-19 06:39:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 06:39:29,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 06:39:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure type4_infoblock [2022-11-19 06:39:29,504 INFO L138 BoogieDeclarations]: Found implementation of procedure type4_infoblock [2022-11-19 06:39:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_put_cache [2022-11-19 06:39:29,505 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_put_cache [2022-11-19 06:39:29,505 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-11-19 06:39:29,505 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-11-19 06:39:29,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_de4x5_private [2022-11-19 06:39:29,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_de4x5_private [2022-11-19 06:39:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_de4x5_private [2022-11-19 06:39:29,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_de4x5_private [2022-11-19 06:39:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_mii [2022-11-19 06:39:29,506 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_mii [2022-11-19 06:39:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_switch_mac_port [2022-11-19 06:39:29,507 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_switch_mac_port [2022-11-19 06:39:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-19 06:39:29,507 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-19 06:39:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure srom_latch [2022-11-19 06:39:29,507 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_latch [2022-11-19 06:39:29,508 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-19 06:39:29,508 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-19 06:39:29,508 INFO L130 BoogieDeclarations]: Found specification of procedure build_setup_frame [2022-11-19 06:39:29,508 INFO L138 BoogieDeclarations]: Found implementation of procedure build_setup_frame [2022-11-19 06:39:29,508 INFO L130 BoogieDeclarations]: Found specification of procedure type2_infoblock [2022-11-19 06:39:29,509 INFO L138 BoogieDeclarations]: Found implementation of procedure type2_infoblock [2022-11-19 06:39:29,509 INFO L130 BoogieDeclarations]: Found specification of procedure type0_infoblock [2022-11-19 06:39:29,509 INFO L138 BoogieDeclarations]: Found implementation of procedure type0_infoblock [2022-11-19 06:39:29,509 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-19 06:39:29,510 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-19 06:39:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure DevicePresent [2022-11-19 06:39:29,510 INFO L138 BoogieDeclarations]: Found implementation of procedure DevicePresent [2022-11-19 06:39:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-19 06:39:29,511 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-19 06:39:29,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 06:39:29,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 06:39:29,512 INFO L130 BoogieDeclarations]: Found specification of procedure dc21143_infoleaf [2022-11-19 06:39:29,512 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21143_infoleaf [2022-11-19 06:39:29,513 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2022-11-19 06:39:29,514 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2022-11-19 06:39:29,514 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-19 06:39:29,515 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-19 06:39:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 06:39:29,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 06:39:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2022-11-19 06:39:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_sw_reset [2022-11-19 06:39:29,516 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_sw_reset [2022-11-19 06:39:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 06:39:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2022-11-19 06:39:29,517 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2022-11-19 06:39:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-19 06:39:29,518 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-19 06:39:29,518 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-11-19 06:39:29,518 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-11-19 06:39:29,518 INFO L130 BoogieDeclarations]: Found specification of procedure is_spd_100 [2022-11-19 06:39:29,518 INFO L138 BoogieDeclarations]: Found implementation of procedure is_spd_100 [2022-11-19 06:39:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 06:39:29,519 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 06:39:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 06:39:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-19 06:39:29,519 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-19 06:39:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_mii [2022-11-19 06:39:29,520 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_mii [2022-11-19 06:39:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_rx_buffs [2022-11-19 06:39:29,520 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_rx_buffs [2022-11-19 06:39:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 06:39:29,522 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 06:39:29,522 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-19 06:39:29,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-19 06:39:29,522 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-19 06:39:29,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-19 06:39:29,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 06:39:29,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 06:39:29,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 06:39:29,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 06:39:29,524 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-19 06:39:29,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-19 06:39:29,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 06:39:29,526 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 06:39:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-19 06:39:29,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-19 06:39:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-19 06:39:29,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-19 06:39:29,528 INFO L130 BoogieDeclarations]: Found specification of procedure ping_media [2022-11-19 06:39:29,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ping_media [2022-11-19 06:39:29,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-19 06:39:29,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-19 06:39:29,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-19 06:39:29,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-19 06:39:29,529 INFO L130 BoogieDeclarations]: Found specification of procedure srom_autoconf [2022-11-19 06:39:29,529 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_autoconf [2022-11-19 06:39:29,530 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-19 06:39:29,530 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-19 06:39:29,530 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-19 06:39:29,531 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-19 06:39:29,531 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_tx [2022-11-19 06:39:29,531 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_tx [2022-11-19 06:39:29,531 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-11-19 06:39:29,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-11-19 06:39:29,532 INFO L130 BoogieDeclarations]: Found specification of procedure srom_rd [2022-11-19 06:39:29,533 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_rd [2022-11-19 06:39:29,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 06:39:29,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-19 06:39:29,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-19 06:39:29,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-19 06:39:29,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-19 06:39:29,539 INFO L130 BoogieDeclarations]: Found specification of procedure SetMulticastFilter [2022-11-19 06:39:29,541 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMulticastFilter [2022-11-19 06:39:29,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:39:29,541 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ioctl [2022-11-19 06:39:29,547 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ioctl [2022-11-19 06:39:29,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 06:39:29,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 06:39:29,548 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 06:39:29,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 06:39:29,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 06:39:29,549 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 06:39:29,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 06:39:29,549 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_srom [2022-11-19 06:39:29,549 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_srom [2022-11-19 06:39:29,549 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-19 06:39:29,549 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-19 06:39:29,550 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 06:39:29,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 06:39:29,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-19 06:39:29,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-19 06:39:29,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-19 06:39:29,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-19 06:39:29,551 INFO L130 BoogieDeclarations]: Found specification of procedure mii_swap [2022-11-19 06:39:29,551 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_swap [2022-11-19 06:39:29,551 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_reset_phy [2022-11-19 06:39:29,551 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_reset_phy [2022-11-19 06:39:29,551 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_putb_cache [2022-11-19 06:39:29,552 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_putb_cache [2022-11-19 06:39:29,552 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-19 06:39:29,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-19 06:39:29,552 INFO L130 BoogieDeclarations]: Found specification of procedure dc21142_infoleaf [2022-11-19 06:39:29,552 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21142_infoleaf [2022-11-19 06:39:29,552 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 06:39:29,553 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 06:39:29,553 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_stats [2022-11-19 06:39:29,553 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_stats [2022-11-19 06:39:29,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-19 06:39:29,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-19 06:39:29,553 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-19 06:39:29,554 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-19 06:39:29,554 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init_connection [2022-11-19 06:39:29,554 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init_connection [2022-11-19 06:39:29,554 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wr [2022-11-19 06:39:29,554 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wr [2022-11-19 06:39:29,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:39:29,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:39:29,555 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_state [2022-11-19 06:39:29,555 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_state [2022-11-19 06:39:29,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-19 06:39:29,555 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-19 06:39:29,556 INFO L130 BoogieDeclarations]: Found specification of procedure type3_infoblock [2022-11-19 06:39:29,556 INFO L138 BoogieDeclarations]: Found implementation of procedure type3_infoblock [2022-11-19 06:39:29,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 06:39:29,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 06:39:29,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 06:39:29,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 06:39:29,557 INFO L130 BoogieDeclarations]: Found specification of procedure reset_init_sia [2022-11-19 06:39:29,557 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_init_sia [2022-11-19 06:39:29,557 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-19 06:39:29,557 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-19 06:39:29,557 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_alloc_rx_buff [2022-11-19 06:39:29,557 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_alloc_rx_buff [2022-11-19 06:39:29,558 INFO L130 BoogieDeclarations]: Found specification of procedure test_for_100Mb [2022-11-19 06:39:29,558 INFO L138 BoogieDeclarations]: Found implementation of procedure test_for_100Mb [2022-11-19 06:39:29,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-19 06:39:29,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-19 06:39:29,558 INFO L130 BoogieDeclarations]: Found specification of procedure type5_infoblock [2022-11-19 06:39:29,559 INFO L138 BoogieDeclarations]: Found implementation of procedure type5_infoblock [2022-11-19 06:39:29,559 INFO L130 BoogieDeclarations]: Found specification of procedure load_packet [2022-11-19 06:39:29,559 INFO L138 BoogieDeclarations]: Found implementation of procedure load_packet [2022-11-19 06:39:29,559 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140m_autoconf [2022-11-19 06:39:29,559 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140m_autoconf [2022-11-19 06:39:29,559 INFO L130 BoogieDeclarations]: Found specification of procedure is_100_up [2022-11-19 06:39:29,560 INFO L138 BoogieDeclarations]: Found implementation of procedure is_100_up [2022-11-19 06:39:29,560 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_open [2022-11-19 06:39:29,560 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_open [2022-11-19 06:39:29,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 06:39:29,560 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 06:39:29,560 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ta [2022-11-19 06:39:29,561 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ta [2022-11-19 06:39:29,561 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-19 06:39:29,561 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-19 06:39:29,561 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_autoconf [2022-11-19 06:39:29,561 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_autoconf [2022-11-19 06:39:29,562 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-19 06:39:29,562 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-19 06:39:29,562 INFO L130 BoogieDeclarations]: Found specification of procedure test_mii_reg [2022-11-19 06:39:29,562 INFO L138 BoogieDeclarations]: Found implementation of procedure test_mii_reg [2022-11-19 06:39:29,562 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_cache_state [2022-11-19 06:39:29,563 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_cache_state [2022-11-19 06:39:29,563 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-19 06:39:29,563 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-19 06:39:29,563 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_pci_remove [2022-11-19 06:39:29,563 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_pci_remove [2022-11-19 06:39:29,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 06:39:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_media [2022-11-19 06:39:29,564 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_media [2022-11-19 06:39:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure autoconf_media [2022-11-19 06:39:29,564 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconf_media [2022-11-19 06:39:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_autoconf [2022-11-19 06:39:29,564 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_autoconf [2022-11-19 06:39:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure mii_rd [2022-11-19 06:39:29,565 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_rd [2022-11-19 06:39:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 06:39:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ast [2022-11-19 06:39:29,565 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ast [2022-11-19 06:39:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2022-11-19 06:39:29,566 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2022-11-19 06:39:29,566 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2022-11-19 06:39:29,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2022-11-19 06:39:29,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 06:39:29,566 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-19 06:39:29,567 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-19 06:39:29,567 INFO L130 BoogieDeclarations]: Found specification of procedure is_10_up [2022-11-19 06:39:29,567 INFO L138 BoogieDeclarations]: Found implementation of procedure is_10_up [2022-11-19 06:39:29,567 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-19 06:39:29,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-19 06:39:29,567 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-11-19 06:39:29,568 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-11-19 06:39:29,568 INFO L130 BoogieDeclarations]: Found specification of procedure is_anc_capable [2022-11-19 06:39:29,568 INFO L138 BoogieDeclarations]: Found implementation of procedure is_anc_capable [2022-11-19 06:39:29,569 INFO L130 BoogieDeclarations]: Found specification of procedure type1_infoblock [2022-11-19 06:39:29,574 INFO L138 BoogieDeclarations]: Found implementation of procedure type1_infoblock [2022-11-19 06:39:29,574 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-19 06:39:29,575 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-19 06:39:29,575 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-19 06:39:29,575 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-19 06:39:29,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-19 06:39:29,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-19 06:39:29,575 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140_infoleaf [2022-11-19 06:39:29,576 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140_infoleaf [2022-11-19 06:39:29,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 06:39:29,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 06:39:29,579 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-19 06:39:29,579 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-19 06:39:29,579 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_queue_pkt [2022-11-19 06:39:29,579 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_queue_pkt [2022-11-19 06:39:29,579 INFO L130 BoogieDeclarations]: Found specification of procedure test_media [2022-11-19 06:39:29,580 INFO L138 BoogieDeclarations]: Found implementation of procedure test_media [2022-11-19 06:39:29,580 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buffs [2022-11-19 06:39:29,580 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buffs [2022-11-19 06:39:29,580 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2022-11-19 06:39:29,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2022-11-19 06:39:29,580 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-19 06:39:29,581 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-19 06:39:29,581 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-19 06:39:29,581 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-19 06:39:29,581 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 06:39:29,581 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 06:39:29,581 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init [2022-11-19 06:39:29,582 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init [2022-11-19 06:39:29,582 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-19 06:39:29,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-19 06:39:29,582 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_infoleaf [2022-11-19 06:39:29,582 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_infoleaf [2022-11-19 06:39:29,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 06:39:29,583 INFO L130 BoogieDeclarations]: Found specification of procedure srom_exec [2022-11-19 06:39:29,583 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_exec [2022-11-19 06:39:29,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 06:39:29,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 06:39:29,583 INFO L130 BoogieDeclarations]: Found specification of procedure gep_wr [2022-11-19 06:39:29,583 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_wr [2022-11-19 06:39:29,584 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-19 06:39:29,584 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-19 06:39:29,584 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_srom [2022-11-19 06:39:29,584 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_srom [2022-11-19 06:39:29,584 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-19 06:39:29,584 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-19 06:39:29,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_96 [2022-11-19 06:39:29,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_96 [2022-11-19 06:39:29,585 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_cache [2022-11-19 06:39:29,585 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_cache [2022-11-19 06:39:29,585 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_suspect_state [2022-11-19 06:39:29,585 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_suspect_state [2022-11-19 06:39:29,586 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_mii [2022-11-19 06:39:29,586 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_mii [2022-11-19 06:39:29,586 INFO L130 BoogieDeclarations]: Found specification of procedure compact_infoblock [2022-11-19 06:39:29,586 INFO L138 BoogieDeclarations]: Found implementation of procedure compact_infoblock [2022-11-19 06:39:29,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 06:39:29,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 06:39:29,587 INFO L130 BoogieDeclarations]: Found specification of procedure gep_rd [2022-11-19 06:39:29,587 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_rd [2022-11-19 06:39:29,587 INFO L130 BoogieDeclarations]: Found specification of procedure mii_address [2022-11-19 06:39:29,587 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_address [2022-11-19 06:39:29,587 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buff [2022-11-19 06:39:29,587 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buff [2022-11-19 06:39:29,588 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_setup_intr [2022-11-19 06:39:29,588 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_setup_intr [2022-11-19 06:39:29,588 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_save_skbs [2022-11-19 06:39:29,588 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_save_skbs [2022-11-19 06:39:29,588 INFO L130 BoogieDeclarations]: Found specification of procedure dc2114x_autoconf [2022-11-19 06:39:29,588 INFO L138 BoogieDeclarations]: Found implementation of procedure dc2114x_autoconf [2022-11-19 06:39:29,589 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-19 06:39:29,589 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-19 06:39:29,589 INFO L130 BoogieDeclarations]: Found specification of procedure srom_map_media [2022-11-19 06:39:29,589 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_map_media [2022-11-19 06:39:29,589 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_strncmp [2022-11-19 06:39:29,589 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_strncmp [2022-11-19 06:39:29,590 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-19 06:39:29,590 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-19 06:39:29,590 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_close [2022-11-19 06:39:29,590 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_close [2022-11-19 06:39:29,590 INFO L130 BoogieDeclarations]: Found specification of procedure yawn [2022-11-19 06:39:29,590 INFO L138 BoogieDeclarations]: Found implementation of procedure yawn [2022-11-19 06:39:29,591 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wdata [2022-11-19 06:39:29,591 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wdata [2022-11-19 06:39:29,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:39:29,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-19 06:39:29,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-19 06:39:29,591 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-19 06:39:31,272 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:39:31,277 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:39:31,996 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 06:40:00,444 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-19 06:40:00,958 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:40:07,217 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:40:07,217 INFO L300 CfgBuilder]: Removed 31 assume(true) statements. [2022-11-19 06:40:07,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:40:07 BoogieIcfgContainer [2022-11-19 06:40:07,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:40:07,236 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:40:07,236 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:40:07,241 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:40:07,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:39:21" (1/3) ... [2022-11-19 06:40:07,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@437ff1a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:40:07, skipping insertion in model container [2022-11-19 06:40:07,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:27" (2/3) ... [2022-11-19 06:40:07,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@437ff1a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:40:07, skipping insertion in model container [2022-11-19 06:40:07,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:40:07" (3/3) ... [2022-11-19 06:40:07,244 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2022-11-19 06:40:07,273 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:40:07,273 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 06:40:07,463 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:40:07,480 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;@729f4a7f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:40:07,481 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 06:40:07,501 INFO L276 IsEmpty]: Start isEmpty. Operand has 3043 states, 1909 states have (on average 1.3473022524882137) internal successors, (2572), 1969 states have internal predecessors, (2572), 997 states have call successors, (997), 153 states have call predecessors, (997), 152 states have return successors, (990), 976 states have call predecessors, (990), 990 states have call successors, (990) [2022-11-19 06:40:07,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-11-19 06:40:07,578 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:40:07,579 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 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] [2022-11-19 06:40:07,580 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:40:07,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:40:07,586 INFO L85 PathProgramCache]: Analyzing trace with hash 598419629, now seen corresponding path program 1 times [2022-11-19 06:40:07,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:40:07,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191339120] [2022-11-19 06:40:07,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:40:07,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:40:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:40:09,040 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 872 trivial. 0 not checked. [2022-11-19 06:40:09,043 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:40:09,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191339120] [2022-11-19 06:40:09,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191339120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:40:09,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:40:09,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:40:09,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676402880] [2022-11-19 06:40:09,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:40:09,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:40:09,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:40:09,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:40:09,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:40:09,114 INFO L87 Difference]: Start difference. First operand has 3043 states, 1909 states have (on average 1.3473022524882137) internal successors, (2572), 1969 states have internal predecessors, (2572), 997 states have call successors, (997), 153 states have call predecessors, (997), 152 states have return successors, (990), 976 states have call predecessors, (990), 990 states have call successors, (990) Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-19 06:40:11,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:40:13,081 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 06:40:20,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:40:20,179 INFO L93 Difference]: Finished difference Result 8398 states and 12822 transitions. [2022-11-19 06:40:20,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:40:20,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 199 [2022-11-19 06:40:20,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:40:20,269 INFO L225 Difference]: With dead ends: 8398 [2022-11-19 06:40:20,270 INFO L226 Difference]: Without dead ends: 5331 [2022-11-19 06:40:20,317 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 06:40:20,321 INFO L413 NwaCegarLoop]: 4695 mSDtfsCounter, 3541 mSDsluCounter, 3844 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3541 SdHoareTripleChecker+Valid, 8539 SdHoareTripleChecker+Invalid, 1224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-11-19 06:40:20,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3541 Valid, 8539 Invalid, 1224 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 1206 Invalid, 1 Unknown, 0 Unchecked, 10.4s Time] [2022-11-19 06:40:20,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5331 states. [2022-11-19 06:40:20,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5331 to 5328. [2022-11-19 06:40:20,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5328 states, 3330 states have (on average 1.3396396396396397) internal successors, (4461), 3409 states have internal predecessors, (4461), 1720 states have call successors, (1720), 277 states have call predecessors, (1720), 277 states have return successors, (1720), 1694 states have call predecessors, (1720), 1720 states have call successors, (1720) [2022-11-19 06:40:20,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5328 states to 5328 states and 7901 transitions. [2022-11-19 06:40:20,946 INFO L78 Accepts]: Start accepts. Automaton has 5328 states and 7901 transitions. Word has length 199 [2022-11-19 06:40:20,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:40:20,951 INFO L495 AbstractCegarLoop]: Abstraction has 5328 states and 7901 transitions. [2022-11-19 06:40:20,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-19 06:40:20,952 INFO L276 IsEmpty]: Start isEmpty. Operand 5328 states and 7901 transitions. [2022-11-19 06:40:20,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-11-19 06:40:20,989 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:40:20,990 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 3, 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] [2022-11-19 06:40:20,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:40:20,994 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:40:20,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:40:20,995 INFO L85 PathProgramCache]: Analyzing trace with hash -333574029, now seen corresponding path program 1 times [2022-11-19 06:40:20,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:40:20,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932729586] [2022-11-19 06:40:20,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:40:20,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:40:21,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:40:21,708 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked. [2022-11-19 06:40:21,708 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:40:21,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932729586] [2022-11-19 06:40:21,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932729586] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:40:21,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:40:21,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:40:21,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21263124] [2022-11-19 06:40:21,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:40:21,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:40:21,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:40:21,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:40:21,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:40:21,714 INFO L87 Difference]: Start difference. First operand 5328 states and 7901 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-19 06:40:23,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:40:31,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:40:31,232 INFO L93 Difference]: Finished difference Result 15652 states and 23509 transitions. [2022-11-19 06:40:31,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:40:31,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 227 [2022-11-19 06:40:31,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:40:31,339 INFO L225 Difference]: With dead ends: 15652 [2022-11-19 06:40:31,339 INFO L226 Difference]: Without dead ends: 10355 [2022-11-19 06:40:31,386 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 06:40:31,388 INFO L413 NwaCegarLoop]: 4834 mSDtfsCounter, 4242 mSDsluCounter, 3869 mSDsCounter, 0 mSdLazyCounter, 1149 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4242 SdHoareTripleChecker+Valid, 8703 SdHoareTripleChecker+Invalid, 1156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1149 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-11-19 06:40:31,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4242 Valid, 8703 Invalid, 1156 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 1149 Invalid, 1 Unknown, 0 Unchecked, 8.7s Time] [2022-11-19 06:40:31,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10355 states. [2022-11-19 06:40:32,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10355 to 10349. [2022-11-19 06:40:32,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10349 states, 6464 states have (on average 1.3405012376237624) internal successors, (8665), 6627 states have internal predecessors, (8665), 3335 states have call successors, (3335), 552 states have call predecessors, (3335), 549 states have return successors, (3643), 3275 states have call predecessors, (3643), 3335 states have call successors, (3643) [2022-11-19 06:40:32,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10349 states to 10349 states and 15643 transitions. [2022-11-19 06:40:32,164 INFO L78 Accepts]: Start accepts. Automaton has 10349 states and 15643 transitions. Word has length 227 [2022-11-19 06:40:32,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:40:32,166 INFO L495 AbstractCegarLoop]: Abstraction has 10349 states and 15643 transitions. [2022-11-19 06:40:32,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-19 06:40:32,167 INFO L276 IsEmpty]: Start isEmpty. Operand 10349 states and 15643 transitions. [2022-11-19 06:40:32,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-11-19 06:40:32,193 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:40:32,193 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:40:32,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 06:40:32,194 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:40:32,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:40:32,204 INFO L85 PathProgramCache]: Analyzing trace with hash 2123412643, now seen corresponding path program 1 times [2022-11-19 06:40:32,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:40:32,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043196159] [2022-11-19 06:40:32,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:40:32,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:40:32,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:40:32,876 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2022-11-19 06:40:32,876 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:40:32,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043196159] [2022-11-19 06:40:32,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043196159] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:40:32,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:40:32,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:40:32,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999289349] [2022-11-19 06:40:32,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:40:32,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:40:32,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:40:32,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:40:32,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:40:32,882 INFO L87 Difference]: Start difference. First operand 10349 states and 15643 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, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-19 06:40:34,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:40:41,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:40:41,926 INFO L93 Difference]: Finished difference Result 30877 states and 46663 transitions. [2022-11-19 06:40:41,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:40:41,927 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, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 233 [2022-11-19 06:40:41,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:40:42,381 INFO L225 Difference]: With dead ends: 30877 [2022-11-19 06:40:42,382 INFO L226 Difference]: Without dead ends: 20559 [2022-11-19 06:40:42,481 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 06:40:42,485 INFO L413 NwaCegarLoop]: 4762 mSDtfsCounter, 4297 mSDsluCounter, 3805 mSDsCounter, 0 mSdLazyCounter, 1172 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4297 SdHoareTripleChecker+Valid, 8567 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1172 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:40:42,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4297 Valid, 8567 Invalid, 1180 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1172 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2022-11-19 06:40:42,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20559 states. [2022-11-19 06:40:44,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20559 to 20557. [2022-11-19 06:40:44,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20557 states, 12843 states have (on average 1.3390173635443432) internal successors, (17197), 13169 states have internal predecessors, (17197), 6615 states have call successors, (6615), 1104 states have call predecessors, (6615), 1098 states have return successors, (7233), 6495 states have call predecessors, (7233), 6615 states have call successors, (7233) [2022-11-19 06:40:44,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20557 states to 20557 states and 31045 transitions. [2022-11-19 06:40:44,556 INFO L78 Accepts]: Start accepts. Automaton has 20557 states and 31045 transitions. Word has length 233 [2022-11-19 06:40:44,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:40:44,557 INFO L495 AbstractCegarLoop]: Abstraction has 20557 states and 31045 transitions. [2022-11-19 06:40:44,558 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, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-19 06:40:44,558 INFO L276 IsEmpty]: Start isEmpty. Operand 20557 states and 31045 transitions. [2022-11-19 06:40:44,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-11-19 06:40:44,581 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:40:44,581 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:40:44,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 06:40:44,582 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:40:44,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:40:44,582 INFO L85 PathProgramCache]: Analyzing trace with hash 733253108, now seen corresponding path program 1 times [2022-11-19 06:40:44,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:40:44,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097866487] [2022-11-19 06:40:44,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:40:44,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:40:44,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:40:45,337 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2022-11-19 06:40:45,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:40:45,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097866487] [2022-11-19 06:40:45,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097866487] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:40:45,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:40:45,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:40:45,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084782529] [2022-11-19 06:40:45,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:40:45,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:40:45,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:40:45,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:40:45,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:40:45,342 INFO L87 Difference]: Start difference. First operand 20557 states and 31045 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-19 06:40:47,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:40:54,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:40:54,752 INFO L93 Difference]: Finished difference Result 61393 states and 92695 transitions. [2022-11-19 06:40:54,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:40:54,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 232 [2022-11-19 06:40:54,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:40:55,100 INFO L225 Difference]: With dead ends: 61393 [2022-11-19 06:40:55,100 INFO L226 Difference]: Without dead ends: 40867 [2022-11-19 06:40:55,543 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 06:40:55,544 INFO L413 NwaCegarLoop]: 4762 mSDtfsCounter, 4296 mSDsluCounter, 3805 mSDsCounter, 0 mSdLazyCounter, 1172 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4296 SdHoareTripleChecker+Valid, 8567 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1172 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-11-19 06:40:55,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4296 Valid, 8567 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1172 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2022-11-19 06:40:55,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40867 states. [2022-11-19 06:40:58,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40867 to 40865. [2022-11-19 06:40:58,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40865 states, 25533 states have (on average 1.337288998550895) internal successors, (34145), 26185 states have internal predecessors, (34145), 13135 states have call successors, (13135), 2208 states have call predecessors, (13135), 2196 states have return successors, (14375), 12895 states have call predecessors, (14375), 13135 states have call successors, (14375) [2022-11-19 06:40:58,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40865 states to 40865 states and 61655 transitions. [2022-11-19 06:40:58,992 INFO L78 Accepts]: Start accepts. Automaton has 40865 states and 61655 transitions. Word has length 232 [2022-11-19 06:40:58,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:40:58,993 INFO L495 AbstractCegarLoop]: Abstraction has 40865 states and 61655 transitions. [2022-11-19 06:40:58,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-19 06:40:58,994 INFO L276 IsEmpty]: Start isEmpty. Operand 40865 states and 61655 transitions. [2022-11-19 06:40:59,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-11-19 06:40:59,014 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:40:59,014 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:40:59,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 06:40:59,014 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:40:59,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:40:59,015 INFO L85 PathProgramCache]: Analyzing trace with hash -739604388, now seen corresponding path program 1 times [2022-11-19 06:40:59,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:40:59,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607834530] [2022-11-19 06:40:59,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:40:59,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:40:59,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:40:59,944 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2022-11-19 06:40:59,945 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:40:59,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607834530] [2022-11-19 06:40:59,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607834530] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:40:59,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:40:59,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:40:59,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788302555] [2022-11-19 06:40:59,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:40:59,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:40:59,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:40:59,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:40:59,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:40:59,948 INFO L87 Difference]: Start difference. First operand 40865 states and 61655 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-19 06:41:02,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:41:22,828 WARN L539 Checker$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 06:41:30,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:41:30,451 INFO L93 Difference]: Finished difference Result 156087 states and 235158 transitions. [2022-11-19 06:41:30,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:41:30,452 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 235 [2022-11-19 06:41:30,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:41:31,426 INFO L225 Difference]: With dead ends: 156087 [2022-11-19 06:41:31,426 INFO L226 Difference]: Without dead ends: 115253 [2022-11-19 06:41:31,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:41:31,723 INFO L413 NwaCegarLoop]: 5502 mSDtfsCounter, 10719 mSDsluCounter, 7545 mSDsCounter, 0 mSdLazyCounter, 7032 mSolverCounterSat, 2078 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10899 SdHoareTripleChecker+Valid, 13047 SdHoareTripleChecker+Invalid, 9112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2078 IncrementalHoareTripleChecker+Valid, 7032 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.4s IncrementalHoareTripleChecker+Time [2022-11-19 06:41:31,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10899 Valid, 13047 Invalid, 9112 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2078 Valid, 7032 Invalid, 2 Unknown, 0 Unchecked, 25.4s Time] [2022-11-19 06:41:31,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115253 states. [2022-11-19 06:41:39,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115253 to 115161. [2022-11-19 06:41:39,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115161 states, 71961 states have (on average 1.3356818276566473) internal successors, (96117), 73821 states have internal predecessors, (96117), 36887 states have call successors, (36887), 6346 states have call predecessors, (36887), 6312 states have return successors, (40343), 36205 states have call predecessors, (40343), 36887 states have call successors, (40343) [2022-11-19 06:41:41,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115161 states to 115161 states and 173347 transitions. [2022-11-19 06:41:41,548 INFO L78 Accepts]: Start accepts. Automaton has 115161 states and 173347 transitions. Word has length 235 [2022-11-19 06:41:41,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:41:41,549 INFO L495 AbstractCegarLoop]: Abstraction has 115161 states and 173347 transitions. [2022-11-19 06:41:41,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-19 06:41:41,550 INFO L276 IsEmpty]: Start isEmpty. Operand 115161 states and 173347 transitions. [2022-11-19 06:41:41,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-11-19 06:41:41,564 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:41:41,564 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 4, 4, 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] [2022-11-19 06:41:41,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 06:41:41,565 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:41:41,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:41:41,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1466145971, now seen corresponding path program 1 times [2022-11-19 06:41:41,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:41:41,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542696287] [2022-11-19 06:41:41,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:41:41,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:41:41,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:41:42,073 INFO L134 CoverageAnalysis]: Checked inductivity of 995 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2022-11-19 06:41:42,073 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:41:42,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542696287] [2022-11-19 06:41:42,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542696287] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:41:42,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:41:42,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:41:42,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861777080] [2022-11-19 06:41:42,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:41:42,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:41:42,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:41:42,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:41:42,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:41:42,077 INFO L87 Difference]: Start difference. First operand 115161 states and 173347 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, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-19 06:41:44,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []