./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 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e94ee31-393d-4959-8130-1a444dbf2aef/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e94ee31-393d-4959-8130-1a444dbf2aef/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e94ee31-393d-4959-8130-1a444dbf2aef/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e94ee31-393d-4959-8130-1a444dbf2aef/bin/utaipan-I9t0OCRTmS/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_3e94ee31-393d-4959-8130-1a444dbf2aef/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e94ee31-393d-4959-8130-1a444dbf2aef/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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-8393723 [2022-11-19 07:16:54,651 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:16:54,653 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:16:54,673 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:16:54,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:16:54,675 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:16:54,676 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:16:54,677 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:16:54,679 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:16:54,680 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:16:54,681 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:16:54,682 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:16:54,682 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:16:54,683 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:16:54,684 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:16:54,685 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:16:54,686 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:16:54,687 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:16:54,689 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:16:54,690 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:16:54,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:16:54,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:16:54,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:16:54,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:16:54,698 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:16:54,698 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:16:54,699 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:16:54,700 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:16:54,700 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:16:54,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:16:54,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:16:54,702 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:16:54,703 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:16:54,704 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:16:54,705 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:16:54,705 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:16:54,706 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:16:54,706 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:16:54,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:16:54,716 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:16:54,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:16:54,718 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e94ee31-393d-4959-8130-1a444dbf2aef/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:16:54,765 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:16:54,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:16:54,766 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:16:54,766 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:16:54,767 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:16:54,767 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:16:54,768 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:16:54,768 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:16:54,768 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:16:54,768 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:16:54,768 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:16:54,769 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:16:54,769 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:16:54,769 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:16:54,769 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:16:54,770 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:16:54,770 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:16:54,770 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:16:54,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:16:54,771 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:16:54,771 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:16:54,771 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:16:54,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:16:54,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:16:54,772 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:16:54,772 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:16:54,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:16:54,773 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:16:54,773 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:16:54,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:16:54,773 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:16:54,774 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:16:54,774 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:16:54,774 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:16:54,774 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:16:54,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:16:54,775 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:16:54,775 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:16:54,775 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e94ee31-393d-4959-8130-1a444dbf2aef/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e94ee31-393d-4959-8130-1a444dbf2aef/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee9ed3068f3b87df6cf8a5420a13d45365c61647fcde61bb8adac513f0f70bd0 [2022-11-19 07:16:55,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:16:55,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:16:55,075 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:16:55,076 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:16:55,077 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:16:55,079 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e94ee31-393d-4959-8130-1a444dbf2aef/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2022-11-19 07:16:55,148 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e94ee31-393d-4959-8130-1a444dbf2aef/bin/utaipan-I9t0OCRTmS/data/a49571015/7314a67d71fe4498b6944d48e95ba711/FLAG56d25d365 [2022-11-19 07:16:56,145 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:16:56,147 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e94ee31-393d-4959-8130-1a444dbf2aef/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2022-11-19 07:16:56,213 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e94ee31-393d-4959-8130-1a444dbf2aef/bin/utaipan-I9t0OCRTmS/data/a49571015/7314a67d71fe4498b6944d48e95ba711/FLAG56d25d365 [2022-11-19 07:16:56,514 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e94ee31-393d-4959-8130-1a444dbf2aef/bin/utaipan-I9t0OCRTmS/data/a49571015/7314a67d71fe4498b6944d48e95ba711 [2022-11-19 07:16:56,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:16:56,518 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:16:56,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:16:56,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:16:56,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:16:56,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:16:56" (1/1) ... [2022-11-19 07:16:56,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@276e8255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:16:56, skipping insertion in model container [2022-11-19 07:16:56,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:16:56" (1/1) ... [2022-11-19 07:16:56,532 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:16:56,711 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:17:00,821 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e94ee31-393d-4959-8130-1a444dbf2aef/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[464872,464885] [2022-11-19 07:17:00,828 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e94ee31-393d-4959-8130-1a444dbf2aef/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[465017,465030] [2022-11-19 07:17:00,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:17:00,943 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:17:01,468 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e94ee31-393d-4959-8130-1a444dbf2aef/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[464872,464885] [2022-11-19 07:17:01,469 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e94ee31-393d-4959-8130-1a444dbf2aef/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[465017,465030] [2022-11-19 07:17:01,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:17:01,816 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:17:01,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:01 WrapperNode [2022-11-19 07:17:01,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:17:01,818 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:17:01,819 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:17:01,819 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:17:01,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:01" (1/1) ... [2022-11-19 07:17:01,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:01" (1/1) ... [2022-11-19 07:17:02,343 INFO L138 Inliner]: procedures = 567, calls = 4484, calls flagged for inlining = 273, calls inlined = 252, statements flattened = 9203 [2022-11-19 07:17:02,344 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:17:02,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:17:02,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:17:02,345 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:17:02,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:01" (1/1) ... [2022-11-19 07:17:02,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:01" (1/1) ... [2022-11-19 07:17:02,403 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:01" (1/1) ... [2022-11-19 07:17:02,404 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:01" (1/1) ... [2022-11-19 07:17:02,543 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:01" (1/1) ... [2022-11-19 07:17:02,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:01" (1/1) ... [2022-11-19 07:17:02,612 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:01" (1/1) ... [2022-11-19 07:17:02,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:01" (1/1) ... [2022-11-19 07:17:02,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:17:02,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:17:02,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:17:02,708 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:17:02,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:01" (1/1) ... [2022-11-19 07:17:02,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:17:02,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e94ee31-393d-4959-8130-1a444dbf2aef/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:17:02,738 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e94ee31-393d-4959-8130-1a444dbf2aef/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:17:02,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e94ee31-393d-4959-8130-1a444dbf2aef/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:17:02,855 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-19 07:17:02,855 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-19 07:17:02,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 07:17:02,855 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 07:17:02,856 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-19 07:17:02,856 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-19 07:17:02,856 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2022-11-19 07:17:02,856 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2022-11-19 07:17:02,856 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_nway_reset [2022-11-19 07:17:02,856 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_nway_reset [2022-11-19 07:17:02,856 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-19 07:17:02,857 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-19 07:17:02,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_88 [2022-11-19 07:17:02,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_88 [2022-11-19 07:17:02,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:17:02,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:17:02,857 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-19 07:17:02,858 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-19 07:17:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure set_8021q_mode [2022-11-19 07:17:02,858 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8021q_mode [2022-11-19 07:17:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_remove_one [2022-11-19 07:17:02,858 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_remove_one [2022-11-19 07:17:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-19 07:17:02,858 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-19 07:17:02,859 INFO L130 BoogieDeclarations]: Found specification of procedure issue_and_wait [2022-11-19 07:17:02,859 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_and_wait [2022-11-19 07:17:02,859 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-19 07:17:02,859 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-19 07:17:02,859 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-11-19 07:17:02,859 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-11-19 07:17:02,860 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-11-19 07:17:02,860 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-11-19 07:17:02,860 INFO L130 BoogieDeclarations]: Found specification of procedure window_write32 [2022-11-19 07:17:02,860 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write32 [2022-11-19 07:17:02,860 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-19 07:17:02,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-19 07:17:02,861 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-19 07:17:02,861 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-19 07:17:02,861 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-19 07:17:02,861 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-19 07:17:02,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_window_lock_of_vortex_private [2022-11-19 07:17:02,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_window_lock_of_vortex_private [2022-11-19 07:17:02,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_vortex_private [2022-11-19 07:17:02,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_vortex_private [2022-11-19 07:17:02,862 INFO L130 BoogieDeclarations]: Found specification of procedure window_set [2022-11-19 07:17:02,862 INFO L138 BoogieDeclarations]: Found implementation of procedure window_set [2022-11-19 07:17:02,862 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-19 07:17:02,862 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-19 07:17:02,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 07:17:02,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 07:17:02,863 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-19 07:17:02,863 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-19 07:17:02,863 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-19 07:17:02,863 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-19 07:17:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-19 07:17:02,864 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-19 07:17:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-19 07:17:02,864 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-19 07:17:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-19 07:17:02,864 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-19 07:17:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 07:17:02,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 07:17:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-11-19 07:17:02,865 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-11-19 07:17:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-19 07:17:02,865 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-19 07:17:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-19 07:17:02,866 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-19 07:17:02,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:17:02,866 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tx_timestamp [2022-11-19 07:17:02,866 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tx_timestamp [2022-11-19 07:17:02,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-11-19 07:17:02,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-11-19 07:17:02,866 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 07:17:02,867 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 07:17:02,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_118 [2022-11-19 07:17:02,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_118 [2022-11-19 07:17:02,867 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-19 07:17:02,867 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-19 07:17:02,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_114 [2022-11-19 07:17:02,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_114 [2022-11-19 07:17:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 07:17:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_tx_timeout [2022-11-19 07:17:02,868 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_tx_timeout [2022-11-19 07:17:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-19 07:17:02,868 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-19 07:17:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure ioport_map [2022-11-19 07:17:02,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ioport_map [2022-11-19 07:17:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 07:17:02,869 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 07:17:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-19 07:17:02,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-19 07:17:02,870 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-19 07:17:02,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-19 07:17:02,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 07:17:02,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_106 [2022-11-19 07:17:02,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_106 [2022-11-19 07:17:02,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 07:17:02,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 07:17:02,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:17:02,871 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_interrupt [2022-11-19 07:17:02,871 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_interrupt [2022-11-19 07:17:02,871 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-11-19 07:17:02,871 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-11-19 07:17:02,871 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-19 07:17:02,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-19 07:17:02,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 07:17:02,872 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 07:17:02,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-19 07:17:02,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-19 07:17:02,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-19 07:17:02,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-19 07:17:02,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-19 07:17:02,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-19 07:17:02,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-19 07:17:02,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-19 07:17:02,873 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_set_duplex [2022-11-19 07:17:02,873 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_set_duplex [2022-11-19 07:17:02,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_132 [2022-11-19 07:17:02,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_132 [2022-11-19 07:17:02,874 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2022-11-19 07:17:02,874 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2022-11-19 07:17:02,874 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-19 07:17:02,874 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-19 07:17:02,875 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_error [2022-11-19 07:17:02,875 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_error [2022-11-19 07:17:02,875 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-19 07:17:02,875 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-19 07:17:02,875 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_close [2022-11-19 07:17:02,875 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_close [2022-11-19 07:17:02,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:17:02,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-19 07:17:02,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-19 07:17:02,876 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2022-11-19 07:17:02,876 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2022-11-19 07:17:02,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-19 07:17:02,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-19 07:17:02,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-19 07:17:02,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-19 07:17:02,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-19 07:17:02,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-19 07:17:02,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-19 07:17:02,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-19 07:17:02,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:17:02,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 07:17:02,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 07:17:02,878 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 07:17:02,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 07:17:02,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:17:02,878 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-11-19 07:17:02,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-11-19 07:17:02,879 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:17:02,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:17:02,879 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-19 07:17:02,879 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-19 07:17:02,879 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:17:02,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:17:02,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-19 07:17:02,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-19 07:17:02,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-19 07:17:02,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-19 07:17:02,880 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_set_WOL [2022-11-19 07:17:02,880 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_set_WOL [2022-11-19 07:17:02,880 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-19 07:17:02,881 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-19 07:17:02,881 INFO L130 BoogieDeclarations]: Found specification of procedure window_write16 [2022-11-19 07:17:02,881 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write16 [2022-11-19 07:17:02,881 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-11-19 07:17:02,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-11-19 07:17:02,881 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-19 07:17:02,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-19 07:17:02,882 INFO L130 BoogieDeclarations]: Found specification of procedure window_read8 [2022-11-19 07:17:02,882 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read8 [2022-11-19 07:17:02,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_vortex_cleanup_16_2 [2022-11-19 07:17:02,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_vortex_cleanup_16_2 [2022-11-19 07:17:02,882 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-19 07:17:02,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-19 07:17:02,882 INFO L130 BoogieDeclarations]: Found specification of procedure update_stats [2022-11-19 07:17:02,883 INFO L138 BoogieDeclarations]: Found implementation of procedure update_stats [2022-11-19 07:17:02,883 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 07:17:02,883 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 07:17:02,883 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-19 07:17:02,883 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-19 07:17:02,883 INFO L130 BoogieDeclarations]: Found specification of procedure poll_vortex [2022-11-19 07:17:02,884 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_vortex [2022-11-19 07:17:02,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-19 07:17:02,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-19 07:17:02,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_window_lock_of_vortex_private [2022-11-19 07:17:02,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_window_lock_of_vortex_private [2022-11-19 07:17:02,884 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_check_media [2022-11-19 07:17:02,884 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_check_media [2022-11-19 07:17:02,885 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-19 07:17:02,885 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-19 07:17:02,885 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_rx [2022-11-19 07:17:02,885 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_rx [2022-11-19 07:17:02,885 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2022-11-19 07:17:02,885 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2022-11-19 07:17:02,885 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_open [2022-11-19 07:17:02,886 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_open [2022-11-19 07:17:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure dump_tx_ring [2022-11-19 07:17:02,886 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_tx_ring [2022-11-19 07:17:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-19 07:17:02,886 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-19 07:17:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:17:02,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:17:02,887 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_probe1 [2022-11-19 07:17:02,887 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_probe1 [2022-11-19 07:17:02,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 07:17:02,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 07:17:02,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 07:17:02,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 07:17:02,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-19 07:17:02,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-19 07:17:02,888 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2022-11-19 07:17:02,888 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2022-11-19 07:17:02,888 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-19 07:17:02,888 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-19 07:17:02,888 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-19 07:17:02,889 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-19 07:17:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-19 07:17:02,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-19 07:17:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-19 07:17:02,889 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-19 07:17:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-19 07:17:02,889 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-19 07:17:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:17:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_111 [2022-11-19 07:17:02,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_111 [2022-11-19 07:17:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-19 07:17:02,890 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-19 07:17:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-19 07:17:02,891 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-19 07:17:02,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:17:02,891 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_suspend [2022-11-19 07:17:02,891 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_suspend [2022-11-19 07:17:02,891 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_interrupt [2022-11-19 07:17:02,891 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_interrupt [2022-11-19 07:17:02,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:17:02,892 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-19 07:17:02,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-19 07:17:02,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-19 07:17:02,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-19 07:17:02,892 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-19 07:17:02,892 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-19 07:17:02,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 07:17:02,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 07:17:02,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-19 07:17:02,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-19 07:17:02,893 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-19 07:17:02,893 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-19 07:17:02,893 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2022-11-19 07:17:02,894 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2022-11-19 07:17:02,894 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_resume [2022-11-19 07:17:02,894 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_resume [2022-11-19 07:17:02,894 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2022-11-19 07:17:02,894 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2022-11-19 07:17:02,894 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-19 07:17:02,894 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-19 07:17:02,895 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_rx [2022-11-19 07:17:02,895 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_rx [2022-11-19 07:17:02,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_105 [2022-11-19 07:17:02,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_105 [2022-11-19 07:17:02,895 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-19 07:17:02,895 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-19 07:17:02,896 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 07:17:02,896 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 07:17:02,896 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-19 07:17:02,896 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-19 07:17:02,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_133 [2022-11-19 07:17:02,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_133 [2022-11-19 07:17:02,896 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-19 07:17:02,897 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-19 07:17:02,897 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_delay [2022-11-19 07:17:02,897 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_delay [2022-11-19 07:17:02,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:17:02,897 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_down [2022-11-19 07:17:02,897 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_down [2022-11-19 07:17:02,897 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-11-19 07:17:02,898 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-11-19 07:17:02,898 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-19 07:17:02,898 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-19 07:17:02,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 07:17:02,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 07:17:02,898 INFO L130 BoogieDeclarations]: Found specification of procedure window_write8 [2022-11-19 07:17:02,898 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write8 [2022-11-19 07:17:02,899 INFO L130 BoogieDeclarations]: Found specification of procedure window_read32 [2022-11-19 07:17:02,899 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read32 [2022-11-19 07:17:02,899 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-19 07:17:02,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-19 07:17:02,899 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32_rep [2022-11-19 07:17:02,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32_rep [2022-11-19 07:17:02,899 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-19 07:17:02,900 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-19 07:17:02,900 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_up [2022-11-19 07:17:02,900 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_up [2022-11-19 07:17:02,900 INFO L130 BoogieDeclarations]: Found specification of procedure window_read16 [2022-11-19 07:17:02,900 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read16 [2022-11-19 07:17:02,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 07:17:02,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 07:17:02,901 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-19 07:17:02,901 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-19 07:17:02,901 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-19 07:17:02,901 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-19 07:17:02,901 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-19 07:17:02,901 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-19 07:17:02,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_vortex_private [2022-11-19 07:17:02,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_vortex_private [2022-11-19 07:17:02,902 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-19 07:17:02,902 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-19 07:17:02,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_112 [2022-11-19 07:17:02,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_112 [2022-11-19 07:17:02,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_113 [2022-11-19 07:17:02,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_113 [2022-11-19 07:17:02,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:17:02,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-19 07:17:02,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-19 07:17:02,903 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-19 07:17:02,903 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-19 07:17:03,945 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:17:03,949 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:17:05,305 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 07:17:12,744 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-19 07:17:12,962 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:17:16,592 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:17:16,592 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-19 07:17:16,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:17:16 BoogieIcfgContainer [2022-11-19 07:17:16,600 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:17:16,603 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:17:16,603 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:17:16,608 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:17:16,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:16:56" (1/3) ... [2022-11-19 07:17:16,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225da9f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:17:16, skipping insertion in model container [2022-11-19 07:17:16,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:01" (2/3) ... [2022-11-19 07:17:16,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225da9f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:17:16, skipping insertion in model container [2022-11-19 07:17:16,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:17:16" (3/3) ... [2022-11-19 07:17:16,611 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2022-11-19 07:17:16,631 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:17:16,631 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:17:16,740 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:17:16,747 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;@317e03e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:17:16,747 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:17:16,759 INFO L276 IsEmpty]: Start isEmpty. Operand has 2273 states, 1319 states have (on average 1.332827899924185) internal successors, (1758), 1388 states have internal predecessors, (1758), 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) [2022-11-19 07:17:16,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-11-19 07:17:16,807 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:17:16,808 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] [2022-11-19 07:17:16,809 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:17:16,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:17:16,815 INFO L85 PathProgramCache]: Analyzing trace with hash -535904242, now seen corresponding path program 1 times [2022-11-19 07:17:16,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:17:16,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341335472] [2022-11-19 07:17:16,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:17:16,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:17:17,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:17:18,387 INFO L134 CoverageAnalysis]: Checked inductivity of 1158 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2022-11-19 07:17:18,388 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:17:18,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341335472] [2022-11-19 07:17:18,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341335472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:17:18,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:17:18,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:17:18,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431540390] [2022-11-19 07:17:18,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:17:18,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:17:18,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:17:18,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:17:18,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:17:18,440 INFO L87 Difference]: Start difference. First operand has 2273 states, 1319 states have (on average 1.332827899924185) internal successors, (1758), 1388 states have internal predecessors, (1758), 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) [2022-11-19 07:17:22,269 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 [] [2022-11-19 07:17:25,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:17:27,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:17:27,062 INFO L93 Difference]: Finished difference Result 6493 states and 9664 transitions. [2022-11-19 07:17:27,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:17:27,067 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 [2022-11-19 07:17:27,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:17:27,118 INFO L225 Difference]: With dead ends: 6493 [2022-11-19 07:17:27,118 INFO L226 Difference]: Without dead ends: 4156 [2022-11-19 07:17:27,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:17:27,142 INFO L413 NwaCegarLoop]: 3583 mSDtfsCounter, 2911 mSDsluCounter, 2852 mSDsCounter, 0 mSdLazyCounter, 968 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2912 SdHoareTripleChecker+Valid, 6435 SdHoareTripleChecker+Invalid, 987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 968 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:17:27,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2912 Valid, 6435 Invalid, 987 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 968 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2022-11-19 07:17:27,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4156 states. [2022-11-19 07:17:27,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4156 to 4152. [2022-11-19 07:17:27,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4152 states, 2442 states have (on average 1.3255528255528255) internal successors, (3237), 2572 states have internal predecessors, (3237), 1421 states have call successors, (1421), 288 states have call predecessors, (1421), 288 states have return successors, (1422), 1390 states have call predecessors, (1422), 1421 states have call successors, (1422) [2022-11-19 07:17:27,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4152 states to 4152 states and 6080 transitions. [2022-11-19 07:17:27,501 INFO L78 Accepts]: Start accepts. Automaton has 4152 states and 6080 transitions. Word has length 222 [2022-11-19 07:17:27,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:17:27,504 INFO L495 AbstractCegarLoop]: Abstraction has 4152 states and 6080 transitions. [2022-11-19 07:17:27,505 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) [2022-11-19 07:17:27,505 INFO L276 IsEmpty]: Start isEmpty. Operand 4152 states and 6080 transitions. [2022-11-19 07:17:27,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-11-19 07:17:27,527 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:17:27,527 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] [2022-11-19 07:17:27,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:17:27,528 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:17:27,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:17:27,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1400469144, now seen corresponding path program 1 times [2022-11-19 07:17:27,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:17:27,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601727698] [2022-11-19 07:17:27,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:17:27,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:17:27,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:17:28,415 INFO L134 CoverageAnalysis]: Checked inductivity of 1158 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2022-11-19 07:17:28,415 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:17:28,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601727698] [2022-11-19 07:17:28,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601727698] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:17:28,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:17:28,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:17:28,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409665186] [2022-11-19 07:17:28,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:17:28,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:17:28,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:17:28,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:17:28,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:17:28,425 INFO L87 Difference]: Start difference. First operand 4152 states and 6080 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) [2022-11-19 07:17:31,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:17:32,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:17:35,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:17:37,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:17:37,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:17:37,973 INFO L93 Difference]: Finished difference Result 12080 states and 17694 transitions. [2022-11-19 07:17:37,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:17:37,975 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 [2022-11-19 07:17:37,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:17:38,035 INFO L225 Difference]: With dead ends: 12080 [2022-11-19 07:17:38,036 INFO L226 Difference]: Without dead ends: 7963 [2022-11-19 07:17:38,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:17:38,062 INFO L413 NwaCegarLoop]: 4062 mSDtfsCounter, 2988 mSDsluCounter, 2739 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2988 SdHoareTripleChecker+Valid, 6801 SdHoareTripleChecker+Invalid, 1120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:17:38,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2988 Valid, 6801 Invalid, 1120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1091 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2022-11-19 07:17:38,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7963 states. [2022-11-19 07:17:38,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7963 to 7957. [2022-11-19 07:17:38,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7957 states, 4665 states have (on average 1.3181136120042873) internal successors, (6149), 4924 states have internal predecessors, (6149), 2727 states have call successors, (2727), 564 states have call predecessors, (2727), 564 states have return successors, (2729), 2664 states have call predecessors, (2729), 2727 states have call successors, (2729) [2022-11-19 07:17:38,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7957 states to 7957 states and 11605 transitions. [2022-11-19 07:17:38,542 INFO L78 Accepts]: Start accepts. Automaton has 7957 states and 11605 transitions. Word has length 223 [2022-11-19 07:17:38,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:17:38,544 INFO L495 AbstractCegarLoop]: Abstraction has 7957 states and 11605 transitions. [2022-11-19 07:17:38,552 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) [2022-11-19 07:17:38,552 INFO L276 IsEmpty]: Start isEmpty. Operand 7957 states and 11605 transitions. [2022-11-19 07:17:38,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-11-19 07:17:38,563 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:17:38,564 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] [2022-11-19 07:17:38,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:17:38,564 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:17:38,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:17:38,565 INFO L85 PathProgramCache]: Analyzing trace with hash 2133855902, now seen corresponding path program 1 times [2022-11-19 07:17:38,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:17:38,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735626321] [2022-11-19 07:17:38,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:17:38,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:17:38,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:17:39,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1124 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1124 trivial. 0 not checked. [2022-11-19 07:17:39,300 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:17:39,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735626321] [2022-11-19 07:17:39,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735626321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:17:39,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:17:39,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:17:39,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23796700] [2022-11-19 07:17:39,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:17:39,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:17:39,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:17:39,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:17:39,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:17:39,303 INFO L87 Difference]: Start difference. First operand 7957 states and 11605 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-19 07:17:42,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:17:44,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:17:48,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:17:48,167 INFO L93 Difference]: Finished difference Result 22985 states and 33600 transitions. [2022-11-19 07:17:48,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:17:48,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 233 [2022-11-19 07:17:48,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:17:48,309 INFO L225 Difference]: With dead ends: 22985 [2022-11-19 07:17:48,309 INFO L226 Difference]: Without dead ends: 15063 [2022-11-19 07:17:48,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:17:48,362 INFO L413 NwaCegarLoop]: 3526 mSDtfsCounter, 2856 mSDsluCounter, 2752 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2858 SdHoareTripleChecker+Valid, 6278 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:17:48,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2858 Valid, 6278 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 913 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time] [2022-11-19 07:17:48,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15063 states. [2022-11-19 07:17:49,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15063 to 15051. [2022-11-19 07:17:49,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15051 states, 8817 states have (on average 1.315753657706703) internal successors, (11601), 9307 states have internal predecessors, (11601), 5131 states have call successors, (5131), 1110 states have call predecessors, (5131), 1102 states have return successors, (5300), 4981 states have call predecessors, (5300), 5131 states have call successors, (5300) [2022-11-19 07:17:49,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15051 states to 15051 states and 22032 transitions. [2022-11-19 07:17:49,365 INFO L78 Accepts]: Start accepts. Automaton has 15051 states and 22032 transitions. Word has length 233 [2022-11-19 07:17:49,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:17:49,367 INFO L495 AbstractCegarLoop]: Abstraction has 15051 states and 22032 transitions. [2022-11-19 07:17:49,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-19 07:17:49,367 INFO L276 IsEmpty]: Start isEmpty. Operand 15051 states and 22032 transitions. [2022-11-19 07:17:49,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-11-19 07:17:49,380 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:17:49,380 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] [2022-11-19 07:17:49,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:17:49,380 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:17:49,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:17:49,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1698294085, now seen corresponding path program 1 times [2022-11-19 07:17:49,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:17:49,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188084429] [2022-11-19 07:17:49,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:17:49,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:17:49,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:17:49,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1167 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2022-11-19 07:17:49,891 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:17:49,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188084429] [2022-11-19 07:17:49,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188084429] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:17:49,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:17:49,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:17:49,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228078424] [2022-11-19 07:17:49,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:17:49,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:17:49,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:17:49,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:17:49,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:17:49,895 INFO L87 Difference]: Start difference. First operand 15051 states and 22032 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) [2022-11-19 07:17:53,946 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 [] [2022-11-19 07:17:56,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:17:58,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:17:58,983 INFO L93 Difference]: Finished difference Result 43958 states and 64295 transitions. [2022-11-19 07:17:58,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:17:58,985 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 [2022-11-19 07:17:58,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:17:59,197 INFO L225 Difference]: With dead ends: 43958 [2022-11-19 07:17:59,197 INFO L226 Difference]: Without dead ends: 28942 [2022-11-19 07:17:59,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:17:59,499 INFO L413 NwaCegarLoop]: 4106 mSDtfsCounter, 2878 mSDsluCounter, 2770 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2880 SdHoareTripleChecker+Valid, 6876 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:17:59,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2880 Valid, 6876 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1085 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2022-11-19 07:17:59,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28942 states. [2022-11-19 07:18:01,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28942 to 28922. [2022-11-19 07:18:01,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28922 states, 16954 states have (on average 1.3123746608469977) internal successors, (22250), 17922 states have internal predecessors, (22250), 9817 states have call successors, (9817), 2166 states have call predecessors, (9817), 2150 states have return successors, (10149), 9512 states have call predecessors, (10149), 9817 states have call successors, (10149) [2022-11-19 07:18:01,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28922 states to 28922 states and 42216 transitions. [2022-11-19 07:18:01,370 INFO L78 Accepts]: Start accepts. Automaton has 28922 states and 42216 transitions. Word has length 247 [2022-11-19 07:18:01,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:18:01,371 INFO L495 AbstractCegarLoop]: Abstraction has 28922 states and 42216 transitions. [2022-11-19 07:18:01,372 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) [2022-11-19 07:18:01,372 INFO L276 IsEmpty]: Start isEmpty. Operand 28922 states and 42216 transitions. [2022-11-19 07:18:01,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-11-19 07:18:01,392 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:18:01,392 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] [2022-11-19 07:18:01,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:18:01,393 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:18:01,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:18:01,393 INFO L85 PathProgramCache]: Analyzing trace with hash 329124514, now seen corresponding path program 1 times [2022-11-19 07:18:01,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:18:01,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134294921] [2022-11-19 07:18:01,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:18:01,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:18:01,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:18:01,911 INFO L134 CoverageAnalysis]: Checked inductivity of 1217 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1214 trivial. 0 not checked. [2022-11-19 07:18:01,911 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:18:01,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134294921] [2022-11-19 07:18:01,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134294921] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:18:01,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:18:01,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:18:01,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885516222] [2022-11-19 07:18:01,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:18:01,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:18:01,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:18:01,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:18:01,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:18:01,914 INFO L87 Difference]: Start difference. First operand 28922 states and 42216 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) [2022-11-19 07:18:05,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:18:06,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:18:10,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:18:10,095 INFO L93 Difference]: Finished difference Result 61188 states and 89019 transitions. [2022-11-19 07:18:10,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:18:10,096 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 [2022-11-19 07:18:10,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:18:10,304 INFO L225 Difference]: With dead ends: 61188 [2022-11-19 07:18:10,305 INFO L226 Difference]: Without dead ends: 32301 [2022-11-19 07:18:10,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:18:10,559 INFO L413 NwaCegarLoop]: 3547 mSDtfsCounter, 2219 mSDsluCounter, 2754 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2220 SdHoareTripleChecker+Valid, 6301 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:18:10,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2220 Valid, 6301 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 963 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-11-19 07:18:10,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32301 states. [2022-11-19 07:18:12,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32301 to 32261. [2022-11-19 07:18:12,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32261 states, 18902 states have (on average 1.3070574542376467) internal successors, (24706), 19959 states have internal predecessors, (24706), 10875 states have call successors, (10875), 2501 states have call predecessors, (10875), 2483 states have return successors, (11227), 10549 states have call predecessors, (11227), 10875 states have call successors, (11227) [2022-11-19 07:18:12,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32261 states to 32261 states and 46808 transitions. [2022-11-19 07:18:12,507 INFO L78 Accepts]: Start accepts. Automaton has 32261 states and 46808 transitions. Word has length 262 [2022-11-19 07:18:12,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:18:12,508 INFO L495 AbstractCegarLoop]: Abstraction has 32261 states and 46808 transitions. [2022-11-19 07:18:12,508 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) [2022-11-19 07:18:12,508 INFO L276 IsEmpty]: Start isEmpty. Operand 32261 states and 46808 transitions. [2022-11-19 07:18:12,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2022-11-19 07:18:12,525 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:18:12,526 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] [2022-11-19 07:18:12,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:18:12,526 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:18:12,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:18:12,527 INFO L85 PathProgramCache]: Analyzing trace with hash -805639190, now seen corresponding path program 1 times [2022-11-19 07:18:12,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:18:12,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050114940] [2022-11-19 07:18:12,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:18:12,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:18:12,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:18:13,080 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1308 trivial. 0 not checked. [2022-11-19 07:18:13,080 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:18:13,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050114940] [2022-11-19 07:18:13,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050114940] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:18:13,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:18:13,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:18:13,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752803362] [2022-11-19 07:18:13,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:18:13,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:18:13,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:18:13,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:18:13,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:18:13,083 INFO L87 Difference]: Start difference. First operand 32261 states and 46808 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) [2022-11-19 07:18:16,558 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 [] [2022-11-19 07:18:19,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:18:22,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:18:22,961 INFO L93 Difference]: Finished difference Result 75681 states and 109882 transitions. [2022-11-19 07:18:22,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:18:22,964 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 [2022-11-19 07:18:22,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:18:23,292 INFO L225 Difference]: With dead ends: 75681 [2022-11-19 07:18:23,294 INFO L226 Difference]: Without dead ends: 46070 [2022-11-19 07:18:23,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:18:23,467 INFO L413 NwaCegarLoop]: 5202 mSDtfsCounter, 2817 mSDsluCounter, 2754 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2818 SdHoareTripleChecker+Valid, 7956 SdHoareTripleChecker+Invalid, 1369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:18:23,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2818 Valid, 7956 Invalid, 1369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1353 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2022-11-19 07:18:23,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46070 states. [2022-11-19 07:18:25,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46070 to 46052. [2022-11-19 07:18:25,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46052 states, 26991 states have (on average 1.306324330332333) internal successors, (35259), 28496 states have internal predecessors, (35259), 15501 states have call successors, (15501), 3585 states have call predecessors, (15501), 3559 states have return successors, (15999), 15034 states have call predecessors, (15999), 15501 states have call successors, (15999) [2022-11-19 07:18:26,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46052 states to 46052 states and 66759 transitions. [2022-11-19 07:18:26,059 INFO L78 Accepts]: Start accepts. Automaton has 46052 states and 66759 transitions. Word has length 271 [2022-11-19 07:18:26,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:18:26,060 INFO L495 AbstractCegarLoop]: Abstraction has 46052 states and 66759 transitions. [2022-11-19 07:18:26,061 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) [2022-11-19 07:18:26,061 INFO L276 IsEmpty]: Start isEmpty. Operand 46052 states and 66759 transitions. [2022-11-19 07:18:26,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2022-11-19 07:18:26,077 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:18:26,077 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] [2022-11-19 07:18:26,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:18:26,078 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:18:26,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:18:26,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1832832579, now seen corresponding path program 1 times [2022-11-19 07:18:26,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:18:26,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333523911] [2022-11-19 07:18:26,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:18:26,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:18:26,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:18:26,948 INFO L134 CoverageAnalysis]: Checked inductivity of 1130 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1130 trivial. 0 not checked. [2022-11-19 07:18:26,948 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:18:26,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333523911] [2022-11-19 07:18:26,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333523911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:18:26,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:18:26,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:18:26,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986369090] [2022-11-19 07:18:26,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:18:26,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:18:26,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:18:26,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:18:26,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:18:26,953 INFO L87 Difference]: Start difference. First operand 46052 states and 66759 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-19 07:18:30,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:18:34,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:18:38,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:18:38,224 INFO L93 Difference]: Finished difference Result 121640 states and 175481 transitions. [2022-11-19 07:18:38,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:18:38,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 281 [2022-11-19 07:18:38,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:18:38,608 INFO L225 Difference]: With dead ends: 121640 [2022-11-19 07:18:38,608 INFO L226 Difference]: Without dead ends: 75623 [2022-11-19 07:18:38,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:18:38,821 INFO L413 NwaCegarLoop]: 3499 mSDtfsCounter, 2693 mSDsluCounter, 2726 mSDsCounter, 0 mSdLazyCounter, 968 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2693 SdHoareTripleChecker+Valid, 6225 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 968 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:18:38,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2693 Valid, 6225 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 968 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2022-11-19 07:18:38,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75623 states. [2022-11-19 07:18:42,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75623 to 75589. [2022-11-19 07:18:42,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75589 states, 44349 states have (on average 1.2939186903876074) internal successors, (57384), 46717 states have internal predecessors, (57384), 25157 states have call successors, (25157), 6158 states have call predecessors, (25157), 6082 states have return successors, (26075), 24353 states have call predecessors, (26075), 25157 states have call successors, (26075) [2022-11-19 07:18:43,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75589 states to 75589 states and 108616 transitions. [2022-11-19 07:18:43,171 INFO L78 Accepts]: Start accepts. Automaton has 75589 states and 108616 transitions. Word has length 281 [2022-11-19 07:18:43,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:18:43,172 INFO L495 AbstractCegarLoop]: Abstraction has 75589 states and 108616 transitions. [2022-11-19 07:18:43,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-19 07:18:43,173 INFO L276 IsEmpty]: Start isEmpty. Operand 75589 states and 108616 transitions. [2022-11-19 07:18:43,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-11-19 07:18:43,199 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:18:43,199 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] [2022-11-19 07:18:43,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 07:18:43,200 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:18:43,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:18:43,201 INFO L85 PathProgramCache]: Analyzing trace with hash -971466914, now seen corresponding path program 1 times [2022-11-19 07:18:43,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:18:43,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723562204] [2022-11-19 07:18:43,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:18:43,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:18:43,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:18:44,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1440 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1420 trivial. 0 not checked. [2022-11-19 07:18:44,231 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:18:44,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723562204] [2022-11-19 07:18:44,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723562204] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:18:44,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:18:44,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:18:44,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793958767] [2022-11-19 07:18:44,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:18:44,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:18:44,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:18:44,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:18:44,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:18:44,234 INFO L87 Difference]: Start difference. First operand 75589 states and 108616 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) [2022-11-19 07:18:46,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:18:49,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:18:56,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:18:56,796 INFO L93 Difference]: Finished difference Result 186379 states and 267971 transitions. [2022-11-19 07:18:56,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:18:56,813 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 [2022-11-19 07:18:56,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:18:57,436 INFO L225 Difference]: With dead ends: 186379 [2022-11-19 07:18:57,436 INFO L226 Difference]: Without dead ends: 110929 [2022-11-19 07:18:57,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:18:57,692 INFO L413 NwaCegarLoop]: 5273 mSDtfsCounter, 2883 mSDsluCounter, 2768 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2885 SdHoareTripleChecker+Valid, 8041 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:18:57,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2885 Valid, 8041 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1350 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2022-11-19 07:18:57,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110929 states. [2022-11-19 07:19:02,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110929 to 110863. [2022-11-19 07:19:02,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110863 states, 65076 states have (on average 1.2933339479992625) internal successors, (84165), 68590 states have internal predecessors, (84165), 36859 states have call successors, (36859), 9039 states have call predecessors, (36859), 8927 states have return successors, (38222), 35655 states have call predecessors, (38222), 36859 states have call successors, (38222) [2022-11-19 07:19:03,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110863 states to 110863 states and 159246 transitions. [2022-11-19 07:19:03,613 INFO L78 Accepts]: Start accepts. Automaton has 110863 states and 159246 transitions. Word has length 302 [2022-11-19 07:19:03,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:19:03,616 INFO L495 AbstractCegarLoop]: Abstraction has 110863 states and 159246 transitions. [2022-11-19 07:19:03,616 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) [2022-11-19 07:19:03,617 INFO L276 IsEmpty]: Start isEmpty. Operand 110863 states and 159246 transitions. [2022-11-19 07:19:03,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2022-11-19 07:19:03,647 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:19:03,647 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] [2022-11-19 07:19:03,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 07:19:03,648 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:19:03,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:19:03,649 INFO L85 PathProgramCache]: Analyzing trace with hash 386518834, now seen corresponding path program 1 times [2022-11-19 07:19:03,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:19:03,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922587755] [2022-11-19 07:19:03,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:19:03,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:19:03,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:19:04,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1502 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1488 trivial. 0 not checked. [2022-11-19 07:19:04,957 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:19:04,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922587755] [2022-11-19 07:19:04,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922587755] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:19:04,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:19:04,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:19:04,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095763326] [2022-11-19 07:19:04,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:19:04,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:19:04,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:19:04,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:19:04,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:19:04,960 INFO L87 Difference]: Start difference. First operand 110863 states and 159246 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-19 07:19:07,296 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 [] [2022-11-19 07:19:09,663 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 []