./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_5aa86535-fdaf-4e1d-a621-6686d4b02f4b/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa86535-fdaf-4e1d-a621-6686d4b02f4b/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa86535-fdaf-4e1d-a621-6686d4b02f4b/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa86535-fdaf-4e1d-a621-6686d4b02f4b/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa86535-fdaf-4e1d-a621-6686d4b02f4b/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa86535-fdaf-4e1d-a621-6686d4b02f4b/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ee9ed3068f3b87df6cf8a5420a13d45365c61647fcde61bb8adac513f0f70bd0 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 02:10:09,603 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:10:09,605 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:10:09,627 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:10:09,627 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:10:09,629 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:10:09,630 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:10:09,632 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:10:09,639 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:10:09,641 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:10:09,643 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:10:09,645 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:10:09,647 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:10:09,650 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:10:09,653 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:10:09,656 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:10:09,659 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:10:09,665 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:10:09,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:10:09,669 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:10:09,673 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:10:09,674 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:10:09,675 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:10:09,677 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:10:09,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:10:09,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:10:09,681 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:10:09,682 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:10:09,683 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:10:09,684 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:10:09,685 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:10:09,686 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:10:09,687 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:10:09,688 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:10:09,689 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:10:09,689 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:10:09,690 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:10:09,691 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:10:09,691 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:10:09,692 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:10:09,693 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:10:09,695 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa86535-fdaf-4e1d-a621-6686d4b02f4b/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 02:10:09,720 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:10:09,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:10:09,721 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:10:09,722 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:10:09,723 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:10:09,723 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:10:09,724 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:10:09,724 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:10:09,724 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:10:09,724 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:10:09,725 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:10:09,725 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:10:09,725 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:10:09,726 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:10:09,726 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:10:09,726 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:10:09,727 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:10:09,727 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:10:09,728 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:10:09,728 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:10:09,728 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:10:09,729 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:10:09,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:10:09,729 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:10:09,729 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:10:09,730 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:10:09,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:10:09,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:10:09,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:10:09,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:10:09,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:10:09,732 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:10:09,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:10:09,732 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:10:09,732 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:10:09,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:10:09,733 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:10:09,733 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:10:09,734 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_5aa86535-fdaf-4e1d-a621-6686d4b02f4b/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa86535-fdaf-4e1d-a621-6686d4b02f4b/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee9ed3068f3b87df6cf8a5420a13d45365c61647fcde61bb8adac513f0f70bd0 [2022-11-22 02:10:10,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:10:10,119 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:10:10,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:10:10,124 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:10:10,125 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:10:10,126 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa86535-fdaf-4e1d-a621-6686d4b02f4b/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2022-11-22 02:10:13,258 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:10:14,034 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:10:14,034 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa86535-fdaf-4e1d-a621-6686d4b02f4b/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2022-11-22 02:10:14,096 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa86535-fdaf-4e1d-a621-6686d4b02f4b/bin/utaipan-g80aRyZoba/data/b2e028139/be3c7f24924d4ac386b44a1455c61235/FLAGd9a7cf931 [2022-11-22 02:10:14,116 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa86535-fdaf-4e1d-a621-6686d4b02f4b/bin/utaipan-g80aRyZoba/data/b2e028139/be3c7f24924d4ac386b44a1455c61235 [2022-11-22 02:10:14,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:10:14,122 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:10:14,127 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:10:14,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:10:14,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:10:14,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:10:14" (1/1) ... [2022-11-22 02:10:14,134 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@322ef4c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:10:14, skipping insertion in model container [2022-11-22 02:10:14,134 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:10:14" (1/1) ... [2022-11-22 02:10:14,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:10:14,354 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:10:18,670 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa86535-fdaf-4e1d-a621-6686d4b02f4b/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[464872,464885] [2022-11-22 02:10:18,676 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa86535-fdaf-4e1d-a621-6686d4b02f4b/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[465017,465030] [2022-11-22 02:10:18,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:10:18,798 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:10:19,336 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa86535-fdaf-4e1d-a621-6686d4b02f4b/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[464872,464885] [2022-11-22 02:10:19,337 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa86535-fdaf-4e1d-a621-6686d4b02f4b/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[465017,465030] [2022-11-22 02:10:19,345 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:10:19,715 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:10:19,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:10:19 WrapperNode [2022-11-22 02:10:19,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:10:19,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:10:19,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:10:19,717 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:10:19,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:10:19" (1/1) ... [2022-11-22 02:10:19,861 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:10:19" (1/1) ... [2022-11-22 02:10:20,198 INFO L138 Inliner]: procedures = 567, calls = 4484, calls flagged for inlining = 273, calls inlined = 252, statements flattened = 9247 [2022-11-22 02:10:20,198 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:10:20,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:10:20,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:10:20,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:10:20,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:10:19" (1/1) ... [2022-11-22 02:10:20,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:10:19" (1/1) ... [2022-11-22 02:10:20,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:10:19" (1/1) ... [2022-11-22 02:10:20,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:10:19" (1/1) ... [2022-11-22 02:10:20,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:10:19" (1/1) ... [2022-11-22 02:10:20,477 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:10:19" (1/1) ... [2022-11-22 02:10:20,514 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:10:19" (1/1) ... [2022-11-22 02:10:20,532 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:10:19" (1/1) ... [2022-11-22 02:10:20,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:10:20,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:10:20,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:10:20,581 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:10:20,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:10:19" (1/1) ... [2022-11-22 02:10:20,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:10:20,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa86535-fdaf-4e1d-a621-6686d4b02f4b/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:10:20,613 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa86535-fdaf-4e1d-a621-6686d4b02f4b/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:10:20,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa86535-fdaf-4e1d-a621-6686d4b02f4b/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:10:20,665 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-22 02:10:20,666 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-22 02:10:20,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 02:10:20,666 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 02:10:20,666 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-22 02:10:20,666 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-22 02:10:20,666 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2022-11-22 02:10:20,667 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2022-11-22 02:10:20,667 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_nway_reset [2022-11-22 02:10:20,667 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_nway_reset [2022-11-22 02:10:20,667 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-22 02:10:20,667 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-22 02:10:20,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_88 [2022-11-22 02:10:20,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_88 [2022-11-22 02:10:20,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 02:10:20,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 02:10:20,668 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-22 02:10:20,668 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-22 02:10:20,668 INFO L130 BoogieDeclarations]: Found specification of procedure set_8021q_mode [2022-11-22 02:10:20,668 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8021q_mode [2022-11-22 02:10:20,669 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_remove_one [2022-11-22 02:10:20,669 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_remove_one [2022-11-22 02:10:20,669 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-22 02:10:20,670 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-22 02:10:20,670 INFO L130 BoogieDeclarations]: Found specification of procedure issue_and_wait [2022-11-22 02:10:20,671 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_and_wait [2022-11-22 02:10:20,671 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 02:10:20,671 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 02:10:20,672 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-11-22 02:10:20,672 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-11-22 02:10:20,672 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-11-22 02:10:20,672 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-11-22 02:10:20,672 INFO L130 BoogieDeclarations]: Found specification of procedure window_write32 [2022-11-22 02:10:20,672 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write32 [2022-11-22 02:10:20,672 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-22 02:10:20,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-22 02:10:20,673 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-22 02:10:20,673 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-22 02:10:20,673 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 02:10:20,673 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 02:10:20,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_window_lock_of_vortex_private [2022-11-22 02:10:20,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_window_lock_of_vortex_private [2022-11-22 02:10:20,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_vortex_private [2022-11-22 02:10:20,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_vortex_private [2022-11-22 02:10:20,674 INFO L130 BoogieDeclarations]: Found specification of procedure window_set [2022-11-22 02:10:20,674 INFO L138 BoogieDeclarations]: Found implementation of procedure window_set [2022-11-22 02:10:20,674 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-22 02:10:20,675 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-22 02:10:20,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 02:10:20,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 02:10:20,676 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-22 02:10:20,676 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-22 02:10:20,676 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-22 02:10:20,759 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-22 02:10:20,759 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-22 02:10:20,759 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-22 02:10:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-22 02:10:20,760 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-22 02:10:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-22 02:10:20,760 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-22 02:10:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 02:10:20,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 02:10:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-11-22 02:10:20,760 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-11-22 02:10:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-22 02:10:20,760 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-22 02:10:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-22 02:10:20,761 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-22 02:10:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:10:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tx_timestamp [2022-11-22 02:10:20,761 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tx_timestamp [2022-11-22 02:10:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-11-22 02:10:20,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-11-22 02:10:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 02:10:20,761 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 02:10:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_118 [2022-11-22 02:10:20,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_118 [2022-11-22 02:10:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-22 02:10:20,761 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-22 02:10:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_114 [2022-11-22 02:10:20,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_114 [2022-11-22 02:10:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 02:10:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_tx_timeout [2022-11-22 02:10:20,762 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_tx_timeout [2022-11-22 02:10:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-22 02:10:20,762 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-22 02:10:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure ioport_map [2022-11-22 02:10:20,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ioport_map [2022-11-22 02:10:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 02:10:20,762 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 02:10:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-22 02:10:20,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-22 02:10:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-22 02:10:20,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-22 02:10:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 02:10:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_106 [2022-11-22 02:10:20,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_106 [2022-11-22 02:10:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 02:10:20,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 02:10:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:10:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_interrupt [2022-11-22 02:10:20,763 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_interrupt [2022-11-22 02:10:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-11-22 02:10:20,764 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-11-22 02:10:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-22 02:10:20,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-22 02:10:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 02:10:20,764 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 02:10:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-22 02:10:20,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-22 02:10:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 02:10:20,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 02:10:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 02:10:20,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 02:10:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-22 02:10:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-22 02:10:20,765 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_set_duplex [2022-11-22 02:10:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_set_duplex [2022-11-22 02:10:20,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_132 [2022-11-22 02:10:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_132 [2022-11-22 02:10:20,765 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2022-11-22 02:10:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2022-11-22 02:10:20,765 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-22 02:10:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-22 02:10:20,765 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_error [2022-11-22 02:10:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_error [2022-11-22 02:10:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-22 02:10:20,766 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-22 02:10:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_close [2022-11-22 02:10:20,766 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_close [2022-11-22 02:10:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 02:10:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-22 02:10:20,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-22 02:10:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2022-11-22 02:10:20,766 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2022-11-22 02:10:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-22 02:10:20,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-22 02:10:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-22 02:10:20,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-22 02:10:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-22 02:10:20,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-22 02:10:20,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-22 02:10:20,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-22 02:10:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:10:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 02:10:20,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 02:10:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 02:10:20,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 02:10:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 02:10:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-11-22 02:10:20,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-11-22 02:10:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 02:10:20,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 02:10:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-22 02:10:20,772 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-22 02:10:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 02:10:20,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 02:10:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-22 02:10:20,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-22 02:10:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-22 02:10:20,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-22 02:10:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_set_WOL [2022-11-22 02:10:20,774 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_set_WOL [2022-11-22 02:10:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-22 02:10:20,774 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-22 02:10:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure window_write16 [2022-11-22 02:10:20,775 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write16 [2022-11-22 02:10:20,775 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-11-22 02:10:20,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-11-22 02:10:20,775 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-22 02:10:20,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-22 02:10:20,775 INFO L130 BoogieDeclarations]: Found specification of procedure window_read8 [2022-11-22 02:10:20,775 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read8 [2022-11-22 02:10:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_vortex_cleanup_16_2 [2022-11-22 02:10:20,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_vortex_cleanup_16_2 [2022-11-22 02:10:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-22 02:10:20,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-22 02:10:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure update_stats [2022-11-22 02:10:20,776 INFO L138 BoogieDeclarations]: Found implementation of procedure update_stats [2022-11-22 02:10:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 02:10:20,777 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 02:10:20,777 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-22 02:10:20,777 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-22 02:10:20,777 INFO L130 BoogieDeclarations]: Found specification of procedure poll_vortex [2022-11-22 02:10:20,777 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_vortex [2022-11-22 02:10:20,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-22 02:10:20,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-22 02:10:20,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_window_lock_of_vortex_private [2022-11-22 02:10:20,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_window_lock_of_vortex_private [2022-11-22 02:10:20,778 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_check_media [2022-11-22 02:10:20,778 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_check_media [2022-11-22 02:10:20,778 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-22 02:10:20,778 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-22 02:10:20,779 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_rx [2022-11-22 02:10:20,779 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_rx [2022-11-22 02:10:20,779 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2022-11-22 02:10:20,779 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2022-11-22 02:10:20,779 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_open [2022-11-22 02:10:20,779 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_open [2022-11-22 02:10:20,779 INFO L130 BoogieDeclarations]: Found specification of procedure dump_tx_ring [2022-11-22 02:10:20,780 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_tx_ring [2022-11-22 02:10:20,780 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-22 02:10:20,781 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-22 02:10:20,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:10:20,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:10:20,781 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_probe1 [2022-11-22 02:10:20,781 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_probe1 [2022-11-22 02:10:20,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 02:10:20,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 02:10:20,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 02:10:20,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 02:10:20,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-22 02:10:20,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-22 02:10:20,783 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2022-11-22 02:10:20,783 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2022-11-22 02:10:20,783 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-22 02:10:20,784 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-22 02:10:20,784 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-22 02:10:20,785 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-22 02:10:20,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-22 02:10:20,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-22 02:10:20,785 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-22 02:10:20,785 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-22 02:10:20,785 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-22 02:10:20,785 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-22 02:10:20,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:10:20,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_111 [2022-11-22 02:10:20,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_111 [2022-11-22 02:10:20,786 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-22 02:10:20,786 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-22 02:10:20,787 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-22 02:10:20,787 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-22 02:10:20,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 02:10:20,787 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_suspend [2022-11-22 02:10:20,787 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_suspend [2022-11-22 02:10:20,788 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_interrupt [2022-11-22 02:10:20,788 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_interrupt [2022-11-22 02:10:20,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 02:10:20,801 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-22 02:10:20,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-22 02:10:20,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-22 02:10:20,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-22 02:10:20,802 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 02:10:20,803 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 02:10:20,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 02:10:20,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 02:10:20,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-22 02:10:20,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-22 02:10:20,809 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-22 02:10:20,809 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-22 02:10:20,810 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2022-11-22 02:10:20,810 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2022-11-22 02:10:20,810 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_resume [2022-11-22 02:10:20,810 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_resume [2022-11-22 02:10:20,810 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2022-11-22 02:10:20,810 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2022-11-22 02:10:20,810 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-22 02:10:20,810 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-22 02:10:20,811 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_rx [2022-11-22 02:10:20,811 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_rx [2022-11-22 02:10:20,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_105 [2022-11-22 02:10:20,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_105 [2022-11-22 02:10:20,811 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-22 02:10:20,811 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-22 02:10:20,811 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-22 02:10:20,812 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-22 02:10:20,812 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-22 02:10:20,812 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-22 02:10:20,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_133 [2022-11-22 02:10:20,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_133 [2022-11-22 02:10:20,812 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-22 02:10:20,813 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-22 02:10:20,813 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_delay [2022-11-22 02:10:20,813 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_delay [2022-11-22 02:10:20,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:10:20,813 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_down [2022-11-22 02:10:20,813 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_down [2022-11-22 02:10:20,814 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-11-22 02:10:20,814 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-11-22 02:10:20,814 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-22 02:10:20,814 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-22 02:10:20,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 02:10:20,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 02:10:20,814 INFO L130 BoogieDeclarations]: Found specification of procedure window_write8 [2022-11-22 02:10:20,815 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write8 [2022-11-22 02:10:20,815 INFO L130 BoogieDeclarations]: Found specification of procedure window_read32 [2022-11-22 02:10:20,815 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read32 [2022-11-22 02:10:20,815 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-22 02:10:20,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-22 02:10:20,815 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32_rep [2022-11-22 02:10:20,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32_rep [2022-11-22 02:10:20,815 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-22 02:10:20,816 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-22 02:10:20,816 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_up [2022-11-22 02:10:20,816 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_up [2022-11-22 02:10:20,816 INFO L130 BoogieDeclarations]: Found specification of procedure window_read16 [2022-11-22 02:10:20,816 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read16 [2022-11-22 02:10:20,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 02:10:20,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 02:10:20,816 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-22 02:10:20,817 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-22 02:10:20,817 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-22 02:10:20,817 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-22 02:10:20,817 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-22 02:10:20,817 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-22 02:10:20,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_vortex_private [2022-11-22 02:10:20,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_vortex_private [2022-11-22 02:10:20,818 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-22 02:10:20,818 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-22 02:10:20,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_112 [2022-11-22 02:10:20,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_112 [2022-11-22 02:10:20,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_113 [2022-11-22 02:10:20,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_113 [2022-11-22 02:10:20,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:10:20,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 02:10:20,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 02:10:20,823 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-22 02:10:20,824 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-22 02:10:22,070 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:10:22,074 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:10:23,561 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 02:10:30,870 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 02:10:31,047 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:10:34,559 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:10:34,559 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-22 02:10:34,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:10:34 BoogieIcfgContainer [2022-11-22 02:10:34,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:10:34,571 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:10:34,571 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:10:34,574 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:10:34,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:10:14" (1/3) ... [2022-11-22 02:10:34,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36470740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:10:34, skipping insertion in model container [2022-11-22 02:10:34,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:10:19" (2/3) ... [2022-11-22 02:10:34,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36470740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:10:34, skipping insertion in model container [2022-11-22 02:10:34,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:10:34" (3/3) ... [2022-11-22 02:10:34,579 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2022-11-22 02:10:34,599 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:10:34,599 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 02:10:34,707 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:10:34,716 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;@426e878b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:10:34,716 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 02:10:34,730 INFO L276 IsEmpty]: Start isEmpty. Operand has 2276 states, 1322 states have (on average 1.334341906202723) internal successors, (1764), 1391 states have internal predecessors, (1764), 803 states have call successors, (803), 151 states have call predecessors, (803), 150 states have return successors, (794), 779 states have call predecessors, (794), 794 states have call successors, (794) [2022-11-22 02:10:34,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-11-22 02:10:34,789 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:10:34,790 INFO L195 NwaCegarLoop]: trace histogram [19, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:10:34,791 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:10:34,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:10:34,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1489335833, now seen corresponding path program 1 times [2022-11-22 02:10:34,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:10:34,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284139226] [2022-11-22 02:10:34,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:10:34,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:10:35,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:10:36,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1158 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2022-11-22 02:10:36,489 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:10:36,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284139226] [2022-11-22 02:10:36,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284139226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:10:36,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:10:36,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:10:36,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200520106] [2022-11-22 02:10:36,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:10:36,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:10:36,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:10:36,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:10:36,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:10:36,564 INFO L87 Difference]: Start difference. First operand has 2276 states, 1322 states have (on average 1.334341906202723) internal successors, (1764), 1391 states have internal predecessors, (1764), 803 states have call successors, (803), 151 states have call predecessors, (803), 150 states have return successors, (794), 779 states have call predecessors, (794), 794 states have call successors, (794) Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-22 02:10:39,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:10:42,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:10:44,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:10:46,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:10:47,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:10:49,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:10:49,378 INFO L93 Difference]: Finished difference Result 6648 states and 9909 transitions. [2022-11-22 02:10:49,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:10:49,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 222 [2022-11-22 02:10:49,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:10:49,444 INFO L225 Difference]: With dead ends: 6648 [2022-11-22 02:10:49,444 INFO L226 Difference]: Without dead ends: 4308 [2022-11-22 02:10:49,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:10:49,473 INFO L413 NwaCegarLoop]: 3645 mSDtfsCounter, 3145 mSDsluCounter, 2858 mSDsCounter, 0 mSdLazyCounter, 972 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3145 SdHoareTripleChecker+Valid, 6503 SdHoareTripleChecker+Invalid, 990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 972 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:10:49,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3145 Valid, 6503 Invalid, 990 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 972 Invalid, 1 Unknown, 0 Unchecked, 12.3s Time] [2022-11-22 02:10:49,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4308 states. [2022-11-22 02:10:49,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4308 to 4305. [2022-11-22 02:10:49,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4305 states, 2532 states have (on average 1.3274091627172195) internal successors, (3361), 2666 states have internal predecessors, (3361), 1479 states have call successors, (1479), 293 states have call predecessors, (1479), 293 states have return successors, (1479), 1448 states have call predecessors, (1479), 1479 states have call successors, (1479) [2022-11-22 02:10:49,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4305 states to 4305 states and 6319 transitions. [2022-11-22 02:10:49,954 INFO L78 Accepts]: Start accepts. Automaton has 4305 states and 6319 transitions. Word has length 222 [2022-11-22 02:10:49,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:10:49,960 INFO L495 AbstractCegarLoop]: Abstraction has 4305 states and 6319 transitions. [2022-11-22 02:10:49,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-22 02:10:49,961 INFO L276 IsEmpty]: Start isEmpty. Operand 4305 states and 6319 transitions. [2022-11-22 02:10:49,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-11-22 02:10:49,973 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:10:49,974 INFO L195 NwaCegarLoop]: trace histogram [19, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:10:49,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:10:49,975 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:10:49,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:10:49,976 INFO L85 PathProgramCache]: Analyzing trace with hash -148547898, now seen corresponding path program 1 times [2022-11-22 02:10:49,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:10:49,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327980683] [2022-11-22 02:10:49,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:10:49,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:10:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:10:50,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1158 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2022-11-22 02:10:50,823 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:10:50,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327980683] [2022-11-22 02:10:50,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327980683] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:10:50,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:10:50,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:10:50,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250463600] [2022-11-22 02:10:50,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:10:50,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:10:50,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:10:50,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:10:50,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:10:50,829 INFO L87 Difference]: Start difference. First operand 4305 states and 6319 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-22 02:10:56,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:10:57,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:10:59,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:11:01,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:11:01,521 INFO L93 Difference]: Finished difference Result 12559 states and 18436 transitions. [2022-11-22 02:11:01,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:11:01,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 223 [2022-11-22 02:11:01,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:11:01,585 INFO L225 Difference]: With dead ends: 12559 [2022-11-22 02:11:01,585 INFO L226 Difference]: Without dead ends: 8289 [2022-11-22 02:11:01,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:11:01,617 INFO L413 NwaCegarLoop]: 4068 mSDtfsCounter, 2994 mSDsluCounter, 2745 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 29 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2994 SdHoareTripleChecker+Valid, 6813 SdHoareTripleChecker+Invalid, 1120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:11:01,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2994 Valid, 6813 Invalid, 1120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1089 Invalid, 2 Unknown, 0 Unchecked, 10.2s Time] [2022-11-22 02:11:01,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8289 states. [2022-11-22 02:11:02,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8289 to 8283. [2022-11-22 02:11:02,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8283 states, 4855 states have (on average 1.3198764160659113) internal successors, (6408), 5123 states have internal predecessors, (6408), 2850 states have call successors, (2850), 577 states have call predecessors, (2850), 577 states have return successors, (2850), 2787 states have call predecessors, (2850), 2850 states have call successors, (2850) [2022-11-22 02:11:02,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8283 states to 8283 states and 12108 transitions. [2022-11-22 02:11:02,154 INFO L78 Accepts]: Start accepts. Automaton has 8283 states and 12108 transitions. Word has length 223 [2022-11-22 02:11:02,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:11:02,155 INFO L495 AbstractCegarLoop]: Abstraction has 8283 states and 12108 transitions. [2022-11-22 02:11:02,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-22 02:11:02,156 INFO L276 IsEmpty]: Start isEmpty. Operand 8283 states and 12108 transitions. [2022-11-22 02:11:02,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-11-22 02:11:02,165 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:11:02,166 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 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] [2022-11-22 02:11:02,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:11:02,166 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:11:02,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:11:02,177 INFO L85 PathProgramCache]: Analyzing trace with hash -179799858, now seen corresponding path program 1 times [2022-11-22 02:11:02,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:11:02,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462505937] [2022-11-22 02:11:02,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:11:02,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:11:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:11:02,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1124 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1124 trivial. 0 not checked. [2022-11-22 02:11:02,931 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:11:02,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462505937] [2022-11-22 02:11:02,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462505937] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:11:02,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:11:02,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:11:02,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626311899] [2022-11-22 02:11:02,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:11:02,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:11:02,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:11:02,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:11:02,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:11:02,940 INFO L87 Difference]: Start difference. First operand 8283 states and 12108 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-22 02:11:06,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:11:08,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:11:11,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:11:11,155 INFO L93 Difference]: Finished difference Result 23655 states and 34634 transitions. [2022-11-22 02:11:11,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:11:11,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 236 [2022-11-22 02:11:11,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:11:11,308 INFO L225 Difference]: With dead ends: 23655 [2022-11-22 02:11:11,309 INFO L226 Difference]: Without dead ends: 15407 [2022-11-22 02:11:11,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:11:11,365 INFO L413 NwaCegarLoop]: 3532 mSDtfsCounter, 2862 mSDsluCounter, 2758 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2864 SdHoareTripleChecker+Valid, 6290 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:11:11,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2864 Valid, 6290 Invalid, 918 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 913 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-11-22 02:11:11,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15407 states. [2022-11-22 02:11:12,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15407 to 15393. [2022-11-22 02:11:12,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15393 states, 9021 states have (on average 1.3175922846691055) internal successors, (11886), 9520 states have internal predecessors, (11886), 5254 states have call successors, (5254), 1125 states have call predecessors, (5254), 1117 states have return successors, (5421), 5104 states have call predecessors, (5421), 5254 states have call successors, (5421) [2022-11-22 02:11:12,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15393 states to 15393 states and 22561 transitions. [2022-11-22 02:11:12,389 INFO L78 Accepts]: Start accepts. Automaton has 15393 states and 22561 transitions. Word has length 236 [2022-11-22 02:11:12,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:11:12,391 INFO L495 AbstractCegarLoop]: Abstraction has 15393 states and 22561 transitions. [2022-11-22 02:11:12,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-22 02:11:12,392 INFO L276 IsEmpty]: Start isEmpty. Operand 15393 states and 22561 transitions. [2022-11-22 02:11:12,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-11-22 02:11:12,405 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:11:12,405 INFO L195 NwaCegarLoop]: trace histogram [19, 17, 17, 17, 17, 17, 17, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:11:12,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:11:12,406 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:11:12,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:11:12,407 INFO L85 PathProgramCache]: Analyzing trace with hash 153185821, now seen corresponding path program 1 times [2022-11-22 02:11:12,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:11:12,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538513332] [2022-11-22 02:11:12,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:11:12,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:11:12,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:11:12,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1167 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2022-11-22 02:11:12,989 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:11:12,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538513332] [2022-11-22 02:11:12,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538513332] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:11:12,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:11:12,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:11:12,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613427872] [2022-11-22 02:11:12,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:11:12,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:11:12,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:11:12,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:11:12,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:11:12,991 INFO L87 Difference]: Start difference. First operand 15393 states and 22561 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, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-22 02:11:17,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:11:19,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:11:21,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:11:24,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:11:24,469 INFO L93 Difference]: Finished difference Result 44668 states and 65403 transitions. [2022-11-22 02:11:24,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:11:24,473 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, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 247 [2022-11-22 02:11:24,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:11:24,669 INFO L225 Difference]: With dead ends: 44668 [2022-11-22 02:11:24,670 INFO L226 Difference]: Without dead ends: 29310 [2022-11-22 02:11:24,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:11:24,765 INFO L413 NwaCegarLoop]: 4132 mSDtfsCounter, 2884 mSDsluCounter, 2776 mSDsCounter, 0 mSdLazyCounter, 1088 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2886 SdHoareTripleChecker+Valid, 6908 SdHoareTripleChecker+Invalid, 1103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1088 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:11:24,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2886 Valid, 6908 Invalid, 1103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1088 Invalid, 2 Unknown, 0 Unchecked, 10.1s Time] [2022-11-22 02:11:24,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29310 states. [2022-11-22 02:11:26,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29310 to 29288. [2022-11-22 02:11:26,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29288 states, 17182 states have (on average 1.3143405889884763) internal successors, (22583), 18159 states have internal predecessors, (22583), 9940 states have call successors, (9940), 2181 states have call predecessors, (9940), 2165 states have return successors, (10270), 9635 states have call predecessors, (10270), 9940 states have call successors, (10270) [2022-11-22 02:11:26,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29288 states to 29288 states and 42793 transitions. [2022-11-22 02:11:26,878 INFO L78 Accepts]: Start accepts. Automaton has 29288 states and 42793 transitions. Word has length 247 [2022-11-22 02:11:26,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:11:26,879 INFO L495 AbstractCegarLoop]: Abstraction has 29288 states and 42793 transitions. [2022-11-22 02:11:26,879 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, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-22 02:11:26,879 INFO L276 IsEmpty]: Start isEmpty. Operand 29288 states and 42793 transitions. [2022-11-22 02:11:26,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-11-22 02:11:26,898 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:11:26,898 INFO L195 NwaCegarLoop]: trace histogram [20, 17, 17, 17, 17, 17, 17, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:11:26,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:11:26,898 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:11:26,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:11:26,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1971698524, now seen corresponding path program 1 times [2022-11-22 02:11:26,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:11:26,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072024037] [2022-11-22 02:11:26,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:11:26,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:11:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:11:27,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1217 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1214 trivial. 0 not checked. [2022-11-22 02:11:27,455 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:11:27,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072024037] [2022-11-22 02:11:27,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072024037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:11:27,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:11:27,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:11:27,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188658346] [2022-11-22 02:11:27,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:11:27,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:11:27,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:11:27,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:11:27,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:11:27,461 INFO L87 Difference]: Start difference. First operand 29288 states and 42793 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-22 02:11:31,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:11:33,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:11:36,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:11:36,749 INFO L93 Difference]: Finished difference Result 61932 states and 90191 transitions. [2022-11-22 02:11:36,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:11:36,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 262 [2022-11-22 02:11:36,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:11:36,937 INFO L225 Difference]: With dead ends: 61932 [2022-11-22 02:11:36,938 INFO L226 Difference]: Without dead ends: 32679 [2022-11-22 02:11:37,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:11:37,064 INFO L413 NwaCegarLoop]: 3556 mSDtfsCounter, 2225 mSDsluCounter, 2760 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2226 SdHoareTripleChecker+Valid, 6316 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:11:37,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2226 Valid, 6316 Invalid, 969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 963 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2022-11-22 02:11:37,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32679 states. [2022-11-22 02:11:38,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32679 to 32645. [2022-11-22 02:11:38,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32645 states, 19142 states have (on average 1.3090063734197053) internal successors, (25057), 20212 states have internal predecessors, (25057), 11000 states have call successors, (11000), 2518 states have call predecessors, (11000), 2502 states have return successors, (11352), 10672 states have call predecessors, (11352), 11000 states have call successors, (11352) [2022-11-22 02:11:39,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32645 states to 32645 states and 47409 transitions. [2022-11-22 02:11:39,224 INFO L78 Accepts]: Start accepts. Automaton has 32645 states and 47409 transitions. Word has length 262 [2022-11-22 02:11:39,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:11:39,225 INFO L495 AbstractCegarLoop]: Abstraction has 32645 states and 47409 transitions. [2022-11-22 02:11:39,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-22 02:11:39,226 INFO L276 IsEmpty]: Start isEmpty. Operand 32645 states and 47409 transitions. [2022-11-22 02:11:39,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2022-11-22 02:11:39,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:11:39,246 INFO L195 NwaCegarLoop]: trace histogram [22, 17, 17, 17, 17, 17, 17, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:11:39,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:11:39,247 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:11:39,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:11:39,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1797815512, now seen corresponding path program 1 times [2022-11-22 02:11:39,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:11:39,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122751221] [2022-11-22 02:11:39,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:11:39,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:11:39,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:11:39,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1308 trivial. 0 not checked. [2022-11-22 02:11:39,915 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:11:39,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122751221] [2022-11-22 02:11:39,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122751221] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:11:39,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:11:39,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:11:39,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440848309] [2022-11-22 02:11:39,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:11:39,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:11:39,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:11:39,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:11:39,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:11:39,919 INFO L87 Difference]: Start difference. First operand 32645 states and 47409 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-11-22 02:11:43,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:11:45,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:11:49,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:11:49,576 INFO L93 Difference]: Finished difference Result 76467 states and 111120 transitions. [2022-11-22 02:11:49,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:11:49,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 271 [2022-11-22 02:11:49,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:11:49,836 INFO L225 Difference]: With dead ends: 76467 [2022-11-22 02:11:49,836 INFO L226 Difference]: Without dead ends: 46478 [2022-11-22 02:11:50,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:11:50,165 INFO L413 NwaCegarLoop]: 5214 mSDtfsCounter, 2823 mSDsluCounter, 2760 mSDsCounter, 0 mSdLazyCounter, 1351 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2824 SdHoareTripleChecker+Valid, 7974 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1351 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:11:50,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2824 Valid, 7974 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1351 Invalid, 2 Unknown, 0 Unchecked, 7.9s Time] [2022-11-22 02:11:50,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46478 states. [2022-11-22 02:11:52,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46478 to 46460. [2022-11-22 02:11:52,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46460 states, 27255 states have (on average 1.3083104017611447) internal successors, (35658), 28773 states have internal predecessors, (35658), 15626 states have call successors, (15626), 3602 states have call predecessors, (15626), 3578 states have return successors, (16124), 15157 states have call predecessors, (16124), 15626 states have call successors, (16124) [2022-11-22 02:11:52,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46460 states to 46460 states and 67408 transitions. [2022-11-22 02:11:52,940 INFO L78 Accepts]: Start accepts. Automaton has 46460 states and 67408 transitions. Word has length 271 [2022-11-22 02:11:52,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:11:52,941 INFO L495 AbstractCegarLoop]: Abstraction has 46460 states and 67408 transitions. [2022-11-22 02:11:52,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-11-22 02:11:52,942 INFO L276 IsEmpty]: Start isEmpty. Operand 46460 states and 67408 transitions. [2022-11-22 02:11:52,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2022-11-22 02:11:52,956 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:11:52,956 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:11:52,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 02:11:52,957 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:11:52,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:11:52,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1286456111, now seen corresponding path program 1 times [2022-11-22 02:11:52,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:11:52,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64190021] [2022-11-22 02:11:52,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:11:52,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:11:53,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:11:53,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1130 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1130 trivial. 0 not checked. [2022-11-22 02:11:53,936 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:11:53,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64190021] [2022-11-22 02:11:53,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64190021] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:11:53,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:11:53,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:11:53,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786765877] [2022-11-22 02:11:53,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:11:53,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:11:53,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:11:53,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:11:53,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:11:53,940 INFO L87 Difference]: Start difference. First operand 46460 states and 67408 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-22 02:11:56,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:11:58,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:11:59,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:12:04,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:12:04,661 INFO L93 Difference]: Finished difference Result 122400 states and 176664 transitions. [2022-11-22 02:12:04,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:12:04,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 284 [2022-11-22 02:12:04,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:12:05,206 INFO L225 Difference]: With dead ends: 122400 [2022-11-22 02:12:05,207 INFO L226 Difference]: Without dead ends: 75975 [2022-11-22 02:12:05,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:12:05,429 INFO L413 NwaCegarLoop]: 3577 mSDtfsCounter, 2640 mSDsluCounter, 2732 mSDsCounter, 0 mSdLazyCounter, 982 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2640 SdHoareTripleChecker+Valid, 6309 SdHoareTripleChecker+Invalid, 990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 982 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:12:05,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2640 Valid, 6309 Invalid, 990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 982 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2022-11-22 02:12:05,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75975 states. [2022-11-22 02:12:08,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75975 to 75929. [2022-11-22 02:12:08,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75929 states, 44577 states have (on average 1.2951970747246337) internal successors, (57736), 46957 states have internal predecessors, (57736), 25257 states have call successors, (25257), 6168 states have call predecessors, (25257), 6094 states have return successors, (26145), 24453 states have call predecessors, (26145), 25257 states have call successors, (26145) [2022-11-22 02:12:09,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75929 states to 75929 states and 109138 transitions. [2022-11-22 02:12:09,272 INFO L78 Accepts]: Start accepts. Automaton has 75929 states and 109138 transitions. Word has length 284 [2022-11-22 02:12:09,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:12:09,273 INFO L495 AbstractCegarLoop]: Abstraction has 75929 states and 109138 transitions. [2022-11-22 02:12:09,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-22 02:12:09,274 INFO L276 IsEmpty]: Start isEmpty. Operand 75929 states and 109138 transitions. [2022-11-22 02:12:09,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-11-22 02:12:09,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:12:09,298 INFO L195 NwaCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:12:09,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 02:12:09,298 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:12:09,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:12:09,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1268845414, now seen corresponding path program 1 times [2022-11-22 02:12:09,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:12:09,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035800134] [2022-11-22 02:12:09,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:12:09,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:12:09,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:12:10,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1440 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1420 trivial. 0 not checked. [2022-11-22 02:12:10,081 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:12:10,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035800134] [2022-11-22 02:12:10,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035800134] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:12:10,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:12:10,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:12:10,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110837072] [2022-11-22 02:12:10,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:12:10,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:12:10,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:12:10,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:12:10,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:12:10,084 INFO L87 Difference]: Start difference. First operand 75929 states and 109138 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-22 02:12:12,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:12:14,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:12:22,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:12:22,520 INFO L93 Difference]: Finished difference Result 187095 states and 269071 transitions. [2022-11-22 02:12:22,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:12:22,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 302 [2022-11-22 02:12:22,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:12:23,241 INFO L225 Difference]: With dead ends: 187095 [2022-11-22 02:12:23,241 INFO L226 Difference]: Without dead ends: 111305 [2022-11-22 02:12:23,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:12:23,465 INFO L413 NwaCegarLoop]: 5285 mSDtfsCounter, 2889 mSDsluCounter, 2774 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2891 SdHoareTripleChecker+Valid, 8059 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:12:23,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2891 Valid, 8059 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1350 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2022-11-22 02:12:23,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111305 states. [2022-11-22 02:12:28,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111305 to 111239. [2022-11-22 02:12:28,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111239 states, 65340 states have (on average 1.2945974900520356) internal successors, (84589), 68866 states have internal predecessors, (84589), 36959 states have call successors, (36959), 9049 states have call predecessors, (36959), 8939 states have return successors, (38276), 35755 states have call predecessors, (38276), 36959 states have call successors, (38276) [2022-11-22 02:12:29,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111239 states to 111239 states and 159824 transitions. [2022-11-22 02:12:29,198 INFO L78 Accepts]: Start accepts. Automaton has 111239 states and 159824 transitions. Word has length 302 [2022-11-22 02:12:29,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:12:29,199 INFO L495 AbstractCegarLoop]: Abstraction has 111239 states and 159824 transitions. [2022-11-22 02:12:29,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-22 02:12:29,199 INFO L276 IsEmpty]: Start isEmpty. Operand 111239 states and 159824 transitions. [2022-11-22 02:12:29,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2022-11-22 02:12:29,245 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:12:29,246 INFO L195 NwaCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:12:29,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 02:12:29,246 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:12:29,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:12:29,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1169147136, now seen corresponding path program 1 times [2022-11-22 02:12:29,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:12:29,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207069548] [2022-11-22 02:12:29,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:12:29,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:12:29,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:12:38,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1502 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1502 trivial. 0 not checked. [2022-11-22 02:12:38,697 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:12:38,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207069548] [2022-11-22 02:12:38,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207069548] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:12:38,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:12:38,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 02:12:38,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390387496] [2022-11-22 02:12:38,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:12:38,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:12:38,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:12:38,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:12:38,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:12:38,701 INFO L87 Difference]: Start difference. First operand 111239 states and 159824 transitions. Second operand has 6 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-22 02:12:41,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:12:45,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:12:47,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:12:48,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:12:50,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []