./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e0c094-7e72-47ce-aa2f-690b9d0446d2/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e0c094-7e72-47ce-aa2f-690b9d0446d2/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e0c094-7e72-47ce-aa2f-690b9d0446d2/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e0c094-7e72-47ce-aa2f-690b9d0446d2/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e0c094-7e72-47ce-aa2f-690b9d0446d2/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e0c094-7e72-47ce-aa2f-690b9d0446d2/bin/utaipan-Q6hlc19bkW --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 0f1a59e3fe28583d669f3a9c734ebc5395c61cae2e7711aea93760782e80de65 --- 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-4e7fbc6 [2022-11-23 15:54:19,575 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:54:19,577 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:54:19,604 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:54:19,605 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:54:19,606 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:54:19,608 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:54:19,611 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:54:19,613 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:54:19,615 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:54:19,616 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:54:19,618 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:54:19,619 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:54:19,620 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:54:19,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:54:19,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:54:19,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:54:19,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:54:19,629 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:54:19,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:54:19,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:54:19,636 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:54:19,638 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:54:19,640 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:54:19,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:54:19,645 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:54:19,645 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:54:19,647 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:54:19,648 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:54:19,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:54:19,650 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:54:19,651 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:54:19,652 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:54:19,653 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:54:19,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:54:19,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:54:19,656 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:54:19,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:54:19,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:54:19,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:54:19,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:54:19,678 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e0c094-7e72-47ce-aa2f-690b9d0446d2/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 15:54:19,735 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:54:19,735 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:54:19,735 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:54:19,735 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:54:19,736 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:54:19,736 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:54:19,736 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:54:19,737 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:54:19,737 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:54:19,737 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:54:19,737 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:54:19,737 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:54:19,737 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:54:19,738 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:54:19,738 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:54:19,738 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:54:19,738 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:54:19,738 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:54:19,739 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:54:19,739 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:54:19,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:54:19,740 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:54:19,740 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:54:19,740 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:54:19,740 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:54:19,740 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:54:19,741 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:54:19,741 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:54:19,741 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:54:19,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:54:19,741 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:54:19,742 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:54:19,742 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:54:19,742 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:54:19,742 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:54:19,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:54:19,742 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:54:19,743 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:54:19,743 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_01e0c094-7e72-47ce-aa2f-690b9d0446d2/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e0c094-7e72-47ce-aa2f-690b9d0446d2/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f1a59e3fe28583d669f3a9c734ebc5395c61cae2e7711aea93760782e80de65 [2022-11-23 15:54:20,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:54:20,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:54:20,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:54:20,039 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:54:20,040 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:54:20,041 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e0c094-7e72-47ce-aa2f-690b9d0446d2/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i [2022-11-23 15:54:23,116 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:54:23,850 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:54:23,851 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e0c094-7e72-47ce-aa2f-690b9d0446d2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i [2022-11-23 15:54:23,912 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e0c094-7e72-47ce-aa2f-690b9d0446d2/bin/utaipan-Q6hlc19bkW/data/b347accd3/9c9f77c5f4d94761bdf1d30131be480c/FLAGc64baca43 [2022-11-23 15:54:23,934 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e0c094-7e72-47ce-aa2f-690b9d0446d2/bin/utaipan-Q6hlc19bkW/data/b347accd3/9c9f77c5f4d94761bdf1d30131be480c [2022-11-23 15:54:23,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:54:23,941 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:54:23,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:54:23,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:54:23,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:54:23,951 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:54:23" (1/1) ... [2022-11-23 15:54:23,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68ecb4a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:23, skipping insertion in model container [2022-11-23 15:54:23,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:54:23" (1/1) ... [2022-11-23 15:54:23,961 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:54:24,173 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:54:27,619 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e0c094-7e72-47ce-aa2f-690b9d0446d2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i[410722,410735] [2022-11-23 15:54:27,628 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e0c094-7e72-47ce-aa2f-690b9d0446d2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i[410867,410880] [2022-11-23 15:54:27,657 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:54:27,756 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:54:28,222 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e0c094-7e72-47ce-aa2f-690b9d0446d2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i[410722,410735] [2022-11-23 15:54:28,223 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e0c094-7e72-47ce-aa2f-690b9d0446d2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i[410867,410880] [2022-11-23 15:54:28,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:54:28,736 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:54:28,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:28 WrapperNode [2022-11-23 15:54:28,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:54:28,738 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:54:28,739 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:54:28,739 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:54:28,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:28" (1/1) ... [2022-11-23 15:54:28,898 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:28" (1/1) ... [2022-11-23 15:54:29,185 INFO L138 Inliner]: procedures = 459, calls = 3897, calls flagged for inlining = 222, calls inlined = 206, statements flattened = 6648 [2022-11-23 15:54:29,186 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:54:29,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:54:29,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:54:29,187 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:54:29,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:28" (1/1) ... [2022-11-23 15:54:29,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:28" (1/1) ... [2022-11-23 15:54:29,248 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:28" (1/1) ... [2022-11-23 15:54:29,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:28" (1/1) ... [2022-11-23 15:54:29,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:28" (1/1) ... [2022-11-23 15:54:29,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:28" (1/1) ... [2022-11-23 15:54:29,584 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:28" (1/1) ... [2022-11-23 15:54:29,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:28" (1/1) ... [2022-11-23 15:54:29,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:54:29,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:54:29,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:54:29,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:54:29,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:28" (1/1) ... [2022-11-23 15:54:29,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:54:29,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e0c094-7e72-47ce-aa2f-690b9d0446d2/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:54:29,696 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e0c094-7e72-47ce-aa2f-690b9d0446d2/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:54:29,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e0c094-7e72-47ce-aa2f-690b9d0446d2/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:54:29,741 INFO L130 BoogieDeclarations]: Found specification of procedure asix_write_medium_mode [2022-11-23 15:54:29,741 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_write_medium_mode [2022-11-23 15:54:29,741 INFO L130 BoogieDeclarations]: Found specification of procedure mii_check_media [2022-11-23 15:54:29,741 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_check_media [2022-11-23 15:54:29,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 15:54:29,742 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 15:54:29,742 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_nway_reset [2022-11-23 15:54:29,742 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_nway_reset [2022-11-23 15:54:29,742 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_link [2022-11-23 15:54:29,742 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_link [2022-11-23 15:54:29,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 15:54:29,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 15:54:29,743 INFO L130 BoogieDeclarations]: Found specification of procedure asix_write_rx_ctl [2022-11-23 15:54:29,743 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_write_rx_ctl [2022-11-23 15:54:29,743 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_stop [2022-11-23 15:54:29,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_stop [2022-11-23 15:54:29,743 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_set_settings [2022-11-23 15:54:29,743 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_set_settings [2022-11-23 15:54:29,743 INFO L130 BoogieDeclarations]: Found specification of procedure ax88178_reset [2022-11-23 15:54:29,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88178_reset [2022-11-23 15:54:29,743 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-11-23 15:54:29,744 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-11-23 15:54:29,744 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_settings [2022-11-23 15:54:29,744 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_settings [2022-11-23 15:54:29,744 INFO L130 BoogieDeclarations]: Found specification of procedure asix_mdio_write [2022-11-23 15:54:29,744 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_mdio_write [2022-11-23 15:54:29,744 INFO L130 BoogieDeclarations]: Found specification of procedure asix_status [2022-11-23 15:54:29,744 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_status [2022-11-23 15:54:29,744 INFO L130 BoogieDeclarations]: Found specification of procedure asix_read_rx_ctl [2022-11-23 15:54:29,744 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_read_rx_ctl [2022-11-23 15:54:29,745 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2022-11-23 15:54:29,745 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2022-11-23 15:54:29,745 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-23 15:54:29,745 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-23 15:54:29,745 INFO L130 BoogieDeclarations]: Found specification of procedure asix_set_eeprom [2022-11-23 15:54:29,745 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_set_eeprom [2022-11-23 15:54:29,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-23 15:54:29,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-23 15:54:29,745 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-23 15:54:29,746 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-23 15:54:29,746 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-23 15:54:29,746 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-23 15:54:29,746 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-23 15:54:29,746 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-23 15:54:29,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 15:54:29,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 15:54:29,746 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_reset_phy [2022-11-23 15:54:29,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_reset_phy [2022-11-23 15:54:29,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:54:29,747 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_unbind [2022-11-23 15:54:29,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_unbind [2022-11-23 15:54:29,747 INFO L130 BoogieDeclarations]: Found specification of procedure ax88772_link_reset [2022-11-23 15:54:29,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88772_link_reset [2022-11-23 15:54:29,747 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-23 15:54:29,747 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-23 15:54:29,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_asix_driver_exit_10_2 [2022-11-23 15:54:29,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_asix_driver_exit_10_2 [2022-11-23 15:54:29,748 INFO L130 BoogieDeclarations]: Found specification of procedure asix_set_netdev_dev_addr [2022-11-23 15:54:29,748 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_set_netdev_dev_addr [2022-11-23 15:54:29,748 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_bind [2022-11-23 15:54:29,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_bind [2022-11-23 15:54:29,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 15:54:29,748 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2022-11-23 15:54:29,748 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2022-11-23 15:54:29,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 15:54:29,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-23 15:54:29,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-23 15:54:29,749 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2022-11-23 15:54:29,749 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2022-11-23 15:54:29,749 INFO L130 BoogieDeclarations]: Found specification of procedure ax88178_bind [2022-11-23 15:54:29,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88178_bind [2022-11-23 15:54:29,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:54:29,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-23 15:54:29,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-23 15:54:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 15:54:29,750 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 15:54:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure asix_read_phy_addr [2022-11-23 15:54:29,750 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_read_phy_addr [2022-11-23 15:54:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-23 15:54:29,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-23 15:54:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-23 15:54:29,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-23 15:54:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure asix_rx_fixup_internal [2022-11-23 15:54:29,751 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_rx_fixup_internal [2022-11-23 15:54:29,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:54:29,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-23 15:54:29,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-23 15:54:29,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-23 15:54:29,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-23 15:54:29,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:54:29,751 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-23 15:54:29,751 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-23 15:54:29,751 INFO L130 BoogieDeclarations]: Found specification of procedure asix_get_eeprom_len [2022-11-23 15:54:29,752 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_get_eeprom_len [2022-11-23 15:54:29,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-23 15:54:29,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-23 15:54:29,752 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-23 15:54:29,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-23 15:54:29,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:54:29,752 INFO L130 BoogieDeclarations]: Found specification of procedure asix_get_wol [2022-11-23 15:54:29,752 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_get_wol [2022-11-23 15:54:29,752 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-23 15:54:29,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-23 15:54:29,753 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_open [2022-11-23 15:54:29,753 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_open [2022-11-23 15:54:29,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-23 15:54:29,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-23 15:54:29,753 INFO L130 BoogieDeclarations]: Found specification of procedure asix_write_cmd_async [2022-11-23 15:54:29,753 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_write_cmd_async [2022-11-23 15:54:29,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-23 15:54:29,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-23 15:54:29,754 INFO L130 BoogieDeclarations]: Found specification of procedure ax88772_unbind [2022-11-23 15:54:29,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88772_unbind [2022-11-23 15:54:29,754 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_reset [2022-11-23 15:54:29,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_reset [2022-11-23 15:54:29,754 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172_link_reset [2022-11-23 15:54:29,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172_link_reset [2022-11-23 15:54:29,754 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_start_xmit [2022-11-23 15:54:29,754 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_start_xmit [2022-11-23 15:54:29,754 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-23 15:54:29,754 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-23 15:54:29,755 INFO L130 BoogieDeclarations]: Found specification of procedure asix_get_drvinfo [2022-11-23 15:54:29,755 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_get_drvinfo [2022-11-23 15:54:29,755 INFO L130 BoogieDeclarations]: Found specification of procedure asix_set_hw_mii [2022-11-23 15:54:29,755 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_set_hw_mii [2022-11-23 15:54:29,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:54:29,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:54:29,755 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-23 15:54:29,755 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-23 15:54:29,755 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_msglevel [2022-11-23 15:54:29,755 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_msglevel [2022-11-23 15:54:29,755 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2022-11-23 15:54:29,756 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2022-11-23 15:54:29,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 15:54:29,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 15:54:29,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 15:54:29,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 15:54:29,756 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_set_settings [2022-11-23 15:54:29,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_set_settings [2022-11-23 15:54:29,756 INFO L130 BoogieDeclarations]: Found specification of procedure ax88772_reset [2022-11-23 15:54:29,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88772_reset [2022-11-23 15:54:29,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_6_4 [2022-11-23 15:54:29,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_6_4 [2022-11-23 15:54:29,757 INFO L130 BoogieDeclarations]: Found specification of procedure asix_get_phyid [2022-11-23 15:54:29,757 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_get_phyid [2022-11-23 15:54:29,757 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_stop [2022-11-23 15:54:29,757 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_stop [2022-11-23 15:54:29,757 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-23 15:54:29,757 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-23 15:54:29,757 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2022-11-23 15:54:29,757 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2022-11-23 15:54:29,757 INFO L130 BoogieDeclarations]: Found specification of procedure asix_tx_fixup [2022-11-23 15:54:29,758 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_tx_fixup [2022-11-23 15:54:29,758 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-23 15:54:29,758 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-23 15:54:29,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 15:54:29,758 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 15:54:29,758 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_gset [2022-11-23 15:54:29,758 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_gset [2022-11-23 15:54:29,758 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_set_msglevel [2022-11-23 15:54:29,759 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_set_msglevel [2022-11-23 15:54:29,759 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-23 15:54:29,759 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-23 15:54:29,759 INFO L130 BoogieDeclarations]: Found specification of procedure asix_sw_reset [2022-11-23 15:54:29,759 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_sw_reset [2022-11-23 15:54:29,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:54:29,759 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172_bind [2022-11-23 15:54:29,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172_bind [2022-11-23 15:54:29,759 INFO L130 BoogieDeclarations]: Found specification of procedure asix_get_phy_addr [2022-11-23 15:54:29,759 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_get_phy_addr [2022-11-23 15:54:29,760 INFO L130 BoogieDeclarations]: Found specification of procedure asix_write_cmd [2022-11-23 15:54:29,760 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_write_cmd [2022-11-23 15:54:29,760 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-23 15:54:29,760 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-23 15:54:29,760 INFO L130 BoogieDeclarations]: Found specification of procedure asix_read_medium_status [2022-11-23 15:54:29,760 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_read_medium_status [2022-11-23 15:54:29,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:54:29,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 15:54:29,760 INFO L130 BoogieDeclarations]: Found specification of procedure asix_read_cmd [2022-11-23 15:54:29,761 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_read_cmd [2022-11-23 15:54:29,761 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-23 15:54:29,761 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-23 15:54:29,761 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-23 15:54:29,761 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-23 15:54:29,761 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-23 15:54:29,761 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-23 15:54:29,761 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_nway_reset [2022-11-23 15:54:29,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_nway_reset [2022-11-23 15:54:29,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-23 15:54:29,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-23 15:54:29,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-23 15:54:29,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-23 15:54:29,762 INFO L130 BoogieDeclarations]: Found specification of procedure asix_write_gpio [2022-11-23 15:54:29,762 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_write_gpio [2022-11-23 15:54:29,762 INFO L130 BoogieDeclarations]: Found specification of procedure asix_mdio_read [2022-11-23 15:54:29,762 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_mdio_read [2022-11-23 15:54:29,762 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2022-11-23 15:54:29,763 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2022-11-23 15:54:29,763 INFO L130 BoogieDeclarations]: Found specification of procedure ax88178_link_reset [2022-11-23 15:54:29,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88178_link_reset [2022-11-23 15:54:29,763 INFO L130 BoogieDeclarations]: Found specification of procedure mii_nway_restart [2022-11-23 15:54:29,763 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_nway_restart [2022-11-23 15:54:29,763 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-23 15:54:29,763 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-23 15:54:29,763 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 15:54:29,763 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 15:54:29,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:54:29,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 15:54:29,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 15:54:29,764 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_adjust_link [2022-11-23 15:54:29,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_adjust_link [2022-11-23 15:54:29,764 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172_set_multicast [2022-11-23 15:54:29,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172_set_multicast [2022-11-23 15:54:29,764 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_rx_fixup [2022-11-23 15:54:29,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_rx_fixup [2022-11-23 15:54:29,764 INFO L130 BoogieDeclarations]: Found specification of procedure asix_set_sw_mii [2022-11-23 15:54:29,765 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_set_sw_mii [2022-11-23 15:54:29,765 INFO L130 BoogieDeclarations]: Found specification of procedure ax88772_bind [2022-11-23 15:54:29,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88772_bind [2022-11-23 15:54:29,765 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_status [2022-11-23 15:54:29,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_status [2022-11-23 15:54:29,765 INFO L130 BoogieDeclarations]: Found specification of procedure asix_rx_fixup_common [2022-11-23 15:54:29,765 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_rx_fixup_common [2022-11-23 15:54:29,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-23 15:54:29,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-23 15:54:29,765 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_endpoints [2022-11-23 15:54:29,766 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_endpoints [2022-11-23 15:54:29,766 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2022-11-23 15:54:29,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2022-11-23 15:54:29,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:54:29,766 INFO L130 BoogieDeclarations]: Found specification of procedure asix_get_eeprom [2022-11-23 15:54:29,766 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_get_eeprom [2022-11-23 15:54:29,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-23 15:54:29,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-23 15:54:29,766 INFO L130 BoogieDeclarations]: Found specification of procedure asix_set_wol [2022-11-23 15:54:29,767 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_set_wol [2022-11-23 15:54:30,987 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:54:30,990 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:54:31,513 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 15:54:43,833 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-23 15:54:44,060 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:54:45,758 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:54:45,758 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-23 15:54:45,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:54:45 BoogieIcfgContainer [2022-11-23 15:54:45,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:54:45,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:54:45,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:54:45,772 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:54:45,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:54:23" (1/3) ... [2022-11-23 15:54:45,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18b61b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:54:45, skipping insertion in model container [2022-11-23 15:54:45,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:28" (2/3) ... [2022-11-23 15:54:45,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18b61b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:54:45, skipping insertion in model container [2022-11-23 15:54:45,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:54:45" (3/3) ... [2022-11-23 15:54:45,775 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i [2022-11-23 15:54:45,795 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:54:45,795 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:54:45,901 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:54:45,908 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;@733b02b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:54:45,909 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:54:45,920 INFO L276 IsEmpty]: Start isEmpty. Operand has 1746 states, 1040 states have (on average 1.3211538461538461) internal successors, (1374), 1049 states have internal predecessors, (1374), 597 states have call successors, (597), 110 states have call predecessors, (597), 109 states have return successors, (590), 585 states have call predecessors, (590), 590 states have call successors, (590) [2022-11-23 15:54:45,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2022-11-23 15:54:45,979 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:54:45,981 INFO L195 NwaCegarLoop]: trace histogram [39, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:54:45,981 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:54:45,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:54:45,990 INFO L85 PathProgramCache]: Analyzing trace with hash 2055996438, now seen corresponding path program 1 times [2022-11-23 15:54:46,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:54:46,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922339681] [2022-11-23 15:54:46,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:54:46,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:54:46,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:54:47,786 INFO L134 CoverageAnalysis]: Checked inductivity of 5700 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5700 trivial. 0 not checked. [2022-11-23 15:54:47,787 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:54:47,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922339681] [2022-11-23 15:54:47,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922339681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:54:47,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:54:47,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:54:47,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242226292] [2022-11-23 15:54:47,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:54:47,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:54:47,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:54:47,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:54:47,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:54:47,843 INFO L87 Difference]: Start difference. First operand has 1746 states, 1040 states have (on average 1.3211538461538461) internal successors, (1374), 1049 states have internal predecessors, (1374), 597 states have call successors, (597), 110 states have call predecessors, (597), 109 states have return successors, (590), 585 states have call predecessors, (590), 590 states have call successors, (590) Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-23 15:54:51,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:54:51,201 INFO L93 Difference]: Finished difference Result 5008 states and 7418 transitions. [2022-11-23 15:54:51,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:54:51,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 414 [2022-11-23 15:54:51,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:54:51,247 INFO L225 Difference]: With dead ends: 5008 [2022-11-23 15:54:51,248 INFO L226 Difference]: Without dead ends: 3273 [2022-11-23 15:54:51,262 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 [2022-11-23 15:54:51,266 INFO L413 NwaCegarLoop]: 2735 mSDtfsCounter, 2325 mSDsluCounter, 2119 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2325 SdHoareTripleChecker+Valid, 4854 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:54:51,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2325 Valid, 4854 Invalid, 867 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-23 15:54:51,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3273 states. [2022-11-23 15:54:51,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3273 to 3269. [2022-11-23 15:54:51,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3269 states, 1981 states have (on average 1.3190307925290257) internal successors, (2613), 1997 states have internal predecessors, (2613), 1075 states have call successors, (1075), 212 states have call predecessors, (1075), 212 states have return successors, (1075), 1063 states have call predecessors, (1075), 1075 states have call successors, (1075) [2022-11-23 15:54:51,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3269 states to 3269 states and 4763 transitions. [2022-11-23 15:54:51,571 INFO L78 Accepts]: Start accepts. Automaton has 3269 states and 4763 transitions. Word has length 414 [2022-11-23 15:54:51,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:54:51,575 INFO L495 AbstractCegarLoop]: Abstraction has 3269 states and 4763 transitions. [2022-11-23 15:54:51,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-23 15:54:51,576 INFO L276 IsEmpty]: Start isEmpty. Operand 3269 states and 4763 transitions. [2022-11-23 15:54:51,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2022-11-23 15:54:51,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:54:51,600 INFO L195 NwaCegarLoop]: trace histogram [39, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:54:51,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:54:51,601 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:54:51,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:54:51,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1858243696, now seen corresponding path program 1 times [2022-11-23 15:54:51,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:54:51,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184713103] [2022-11-23 15:54:51,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:54:51,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:54:51,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:54:52,398 INFO L134 CoverageAnalysis]: Checked inductivity of 5700 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5700 trivial. 0 not checked. [2022-11-23 15:54:52,399 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:54:52,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184713103] [2022-11-23 15:54:52,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184713103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:54:52,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:54:52,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:54:52,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631774132] [2022-11-23 15:54:52,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:54:52,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:54:52,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:54:52,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:54:52,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:54:52,405 INFO L87 Difference]: Start difference. First operand 3269 states and 4763 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-23 15:54:55,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:54:55,682 INFO L93 Difference]: Finished difference Result 9549 states and 13893 transitions. [2022-11-23 15:54:55,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:54:55,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 421 [2022-11-23 15:54:55,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:54:55,732 INFO L225 Difference]: With dead ends: 9549 [2022-11-23 15:54:55,732 INFO L226 Difference]: Without dead ends: 6357 [2022-11-23 15:54:55,750 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 [2022-11-23 15:54:55,752 INFO L413 NwaCegarLoop]: 2700 mSDtfsCounter, 2261 mSDsluCounter, 2062 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2261 SdHoareTripleChecker+Valid, 4762 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-23 15:54:55,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2261 Valid, 4762 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-23 15:54:55,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6357 states. [2022-11-23 15:54:56,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6357 to 6353. [2022-11-23 15:54:56,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6353 states, 3866 states have (on average 1.3186756337299534) internal successors, (5098), 3900 states have internal predecessors, (5098), 2062 states have call successors, (2062), 424 states have call predecessors, (2062), 424 states have return successors, (2062), 2036 states have call predecessors, (2062), 2062 states have call successors, (2062) [2022-11-23 15:54:56,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6353 states to 6353 states and 9222 transitions. [2022-11-23 15:54:56,246 INFO L78 Accepts]: Start accepts. Automaton has 6353 states and 9222 transitions. Word has length 421 [2022-11-23 15:54:56,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:54:56,249 INFO L495 AbstractCegarLoop]: Abstraction has 6353 states and 9222 transitions. [2022-11-23 15:54:56,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-23 15:54:56,249 INFO L276 IsEmpty]: Start isEmpty. Operand 6353 states and 9222 transitions. [2022-11-23 15:54:56,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2022-11-23 15:54:56,269 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:54:56,270 INFO L195 NwaCegarLoop]: trace histogram [39, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:54:56,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:54:56,271 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:54:56,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:54:56,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1876973614, now seen corresponding path program 1 times [2022-11-23 15:54:56,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:54:56,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82946521] [2022-11-23 15:54:56,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:54:56,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:54:56,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:54:57,139 INFO L134 CoverageAnalysis]: Checked inductivity of 5700 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5700 trivial. 0 not checked. [2022-11-23 15:54:57,139 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:54:57,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82946521] [2022-11-23 15:54:57,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82946521] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:54:57,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:54:57,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:54:57,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039076363] [2022-11-23 15:54:57,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:54:57,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:54:57,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:54:57,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:54:57,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:54:57,147 INFO L87 Difference]: Start difference. First operand 6353 states and 9222 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-23 15:55:01,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:55:01,039 INFO L93 Difference]: Finished difference Result 18153 states and 26262 transitions. [2022-11-23 15:55:01,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:55:01,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 423 [2022-11-23 15:55:01,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:55:01,120 INFO L225 Difference]: With dead ends: 18153 [2022-11-23 15:55:01,121 INFO L226 Difference]: Without dead ends: 11877 [2022-11-23 15:55:01,150 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 [2022-11-23 15:55:01,151 INFO L413 NwaCegarLoop]: 2769 mSDtfsCounter, 2110 mSDsluCounter, 2059 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2110 SdHoareTripleChecker+Valid, 4828 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:55:01,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2110 Valid, 4828 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-23 15:55:01,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11877 states. [2022-11-23 15:55:01,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11877 to 11873. [2022-11-23 15:55:01,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11873 states, 7240 states have (on average 1.3138121546961326) internal successors, (9512), 7290 states have internal predecessors, (9512), 3800 states have call successors, (3800), 832 states have call predecessors, (3800), 832 states have return successors, (3800), 3766 states have call predecessors, (3800), 3800 states have call successors, (3800) [2022-11-23 15:55:01,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11873 states to 11873 states and 17112 transitions. [2022-11-23 15:55:01,886 INFO L78 Accepts]: Start accepts. Automaton has 11873 states and 17112 transitions. Word has length 423 [2022-11-23 15:55:01,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:55:01,888 INFO L495 AbstractCegarLoop]: Abstraction has 11873 states and 17112 transitions. [2022-11-23 15:55:01,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-23 15:55:01,890 INFO L276 IsEmpty]: Start isEmpty. Operand 11873 states and 17112 transitions. [2022-11-23 15:55:01,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2022-11-23 15:55:01,905 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:55:01,905 INFO L195 NwaCegarLoop]: trace histogram [39, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:55:01,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:55:01,906 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:55:01,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:55:01,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1800870328, now seen corresponding path program 1 times [2022-11-23 15:55:01,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:55:01,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030741984] [2022-11-23 15:55:01,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:55:01,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:55:02,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:55:02,603 INFO L134 CoverageAnalysis]: Checked inductivity of 5700 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5700 trivial. 0 not checked. [2022-11-23 15:55:02,603 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:55:02,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030741984] [2022-11-23 15:55:02,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030741984] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:55:02,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:55:02,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:55:02,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831710640] [2022-11-23 15:55:02,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:55:02,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:55:02,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:55:02,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:55:02,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:55:02,606 INFO L87 Difference]: Start difference. First operand 11873 states and 17112 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-23 15:55:06,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:55:06,822 INFO L93 Difference]: Finished difference Result 34676 states and 49914 transitions. [2022-11-23 15:55:06,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:55:06,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 421 [2022-11-23 15:55:06,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:55:06,961 INFO L225 Difference]: With dead ends: 34676 [2022-11-23 15:55:06,961 INFO L226 Difference]: Without dead ends: 22880 [2022-11-23 15:55:07,014 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 [2022-11-23 15:55:07,018 INFO L413 NwaCegarLoop]: 3121 mSDtfsCounter, 2259 mSDsluCounter, 2062 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2259 SdHoareTripleChecker+Valid, 5183 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:55:07,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2259 Valid, 5183 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 955 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-23 15:55:07,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22880 states. [2022-11-23 15:55:08,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22880 to 22876. [2022-11-23 15:55:08,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22876 states, 13990 states have (on average 1.310507505360972) internal successors, (18334), 14092 states have internal predecessors, (18334), 7250 states have call successors, (7250), 1635 states have call predecessors, (7250), 1635 states have return successors, (7250), 7180 states have call predecessors, (7250), 7250 states have call successors, (7250) [2022-11-23 15:55:08,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22876 states to 22876 states and 32834 transitions. [2022-11-23 15:55:08,658 INFO L78 Accepts]: Start accepts. Automaton has 22876 states and 32834 transitions. Word has length 421 [2022-11-23 15:55:08,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:55:08,660 INFO L495 AbstractCegarLoop]: Abstraction has 22876 states and 32834 transitions. [2022-11-23 15:55:08,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-23 15:55:08,660 INFO L276 IsEmpty]: Start isEmpty. Operand 22876 states and 32834 transitions. [2022-11-23 15:55:08,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2022-11-23 15:55:08,674 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:55:08,675 INFO L195 NwaCegarLoop]: trace histogram [39, 38, 38, 38, 38, 38, 38, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:55:08,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:55:08,677 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:55:08,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:55:08,678 INFO L85 PathProgramCache]: Analyzing trace with hash 151572766, now seen corresponding path program 1 times [2022-11-23 15:55:08,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:55:08,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003708963] [2022-11-23 15:55:08,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:55:08,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:55:08,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:55:09,462 INFO L134 CoverageAnalysis]: Checked inductivity of 5703 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5703 trivial. 0 not checked. [2022-11-23 15:55:09,463 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:55:09,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003708963] [2022-11-23 15:55:09,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003708963] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:55:09,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:55:09,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:55:09,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448665408] [2022-11-23 15:55:09,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:55:09,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:55:09,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:55:09,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:55:09,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:55:09,466 INFO L87 Difference]: Start difference. First operand 22876 states and 32834 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, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-23 15:55:13,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:55:14,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:55:14,339 INFO L93 Difference]: Finished difference Result 66806 states and 95742 transitions. [2022-11-23 15:55:14,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:55:14,339 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, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 429 [2022-11-23 15:55:14,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:55:14,713 INFO L225 Difference]: With dead ends: 66806 [2022-11-23 15:55:14,713 INFO L226 Difference]: Without dead ends: 44007 [2022-11-23 15:55:14,796 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 [2022-11-23 15:55:14,799 INFO L413 NwaCegarLoop]: 2597 mSDtfsCounter, 2201 mSDsluCounter, 2048 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2201 SdHoareTripleChecker+Valid, 4645 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:55:14,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2201 Valid, 4645 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-23 15:55:14,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44007 states. [2022-11-23 15:55:17,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44007 to 43973. [2022-11-23 15:55:17,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43973 states, 26866 states have (on average 1.3049207176356734) internal successors, (35058), 27102 states have internal predecessors, (35058), 13926 states have call successors, (13926), 3180 states have call predecessors, (13926), 3180 states have return successors, (13926), 13754 states have call predecessors, (13926), 13926 states have call successors, (13926) [2022-11-23 15:55:18,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43973 states to 43973 states and 62910 transitions. [2022-11-23 15:55:18,066 INFO L78 Accepts]: Start accepts. Automaton has 43973 states and 62910 transitions. Word has length 429 [2022-11-23 15:55:18,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:55:18,067 INFO L495 AbstractCegarLoop]: Abstraction has 43973 states and 62910 transitions. [2022-11-23 15:55:18,068 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, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-23 15:55:18,068 INFO L276 IsEmpty]: Start isEmpty. Operand 43973 states and 62910 transitions. [2022-11-23 15:55:18,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-11-23 15:55:18,077 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:55:18,078 INFO L195 NwaCegarLoop]: trace histogram [39, 38, 38, 38, 38, 38, 38, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:55:18,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:55:18,078 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:55:18,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:55:18,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1623760924, now seen corresponding path program 1 times [2022-11-23 15:55:18,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:55:18,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765206304] [2022-11-23 15:55:18,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:55:18,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:55:18,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:55:18,825 INFO L134 CoverageAnalysis]: Checked inductivity of 5703 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5703 trivial. 0 not checked. [2022-11-23 15:55:18,825 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:55:18,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765206304] [2022-11-23 15:55:18,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765206304] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:55:18,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:55:18,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:55:18,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261583475] [2022-11-23 15:55:18,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:55:18,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:55:18,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:55:18,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:55:18,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:55:18,829 INFO L87 Difference]: Start difference. First operand 43973 states and 62910 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-23 15:55:25,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:55:25,450 INFO L93 Difference]: Finished difference Result 126775 states and 180903 transitions. [2022-11-23 15:55:25,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:55:25,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 428 [2022-11-23 15:55:25,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:55:26,256 INFO L225 Difference]: With dead ends: 126775 [2022-11-23 15:55:26,257 INFO L226 Difference]: Without dead ends: 82879 [2022-11-23 15:55:26,420 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 [2022-11-23 15:55:26,421 INFO L413 NwaCegarLoop]: 2794 mSDtfsCounter, 2210 mSDsluCounter, 2048 mSDsCounter, 0 mSdLazyCounter, 926 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2210 SdHoareTripleChecker+Valid, 4842 SdHoareTripleChecker+Invalid, 933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:55:26,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2210 Valid, 4842 Invalid, 933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 926 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-23 15:55:26,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82879 states. [2022-11-23 15:55:30,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82879 to 82845. [2022-11-23 15:55:30,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82845 states, 50435 states have (on average 1.2953107960741548) internal successors, (65329), 50939 states have internal predecessors, (65329), 26293 states have call successors, (26293), 6116 states have call predecessors, (26293), 6116 states have return successors, (26293), 25917 states have call predecessors, (26293), 26293 states have call successors, (26293) [2022-11-23 15:55:30,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82845 states to 82845 states and 117915 transitions. [2022-11-23 15:55:30,938 INFO L78 Accepts]: Start accepts. Automaton has 82845 states and 117915 transitions. Word has length 428 [2022-11-23 15:55:30,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:55:30,940 INFO L495 AbstractCegarLoop]: Abstraction has 82845 states and 117915 transitions. [2022-11-23 15:55:30,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-23 15:55:30,940 INFO L276 IsEmpty]: Start isEmpty. Operand 82845 states and 117915 transitions. [2022-11-23 15:55:30,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2022-11-23 15:55:30,953 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:55:30,953 INFO L195 NwaCegarLoop]: trace histogram [40, 38, 38, 38, 38, 38, 38, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:55:30,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 15:55:30,954 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:55:30,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:55:30,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1715133373, now seen corresponding path program 1 times [2022-11-23 15:55:30,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:55:30,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717316842] [2022-11-23 15:55:30,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:55:30,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:55:31,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:55:32,282 INFO L134 CoverageAnalysis]: Checked inductivity of 5781 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5778 trivial. 0 not checked. [2022-11-23 15:55:32,282 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:55:32,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717316842] [2022-11-23 15:55:32,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717316842] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:55:32,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:55:32,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:55:32,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571628777] [2022-11-23 15:55:32,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:55:32,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:55:32,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:55:32,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:55:32,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:55:32,286 INFO L87 Difference]: Start difference. First operand 82845 states and 117915 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2022-11-23 15:55:38,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:55:38,424 INFO L93 Difference]: Finished difference Result 166851 states and 237071 transitions. [2022-11-23 15:55:38,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:55:38,425 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 431 [2022-11-23 15:55:38,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:55:38,845 INFO L225 Difference]: With dead ends: 166851 [2022-11-23 15:55:38,845 INFO L226 Difference]: Without dead ends: 84083 [2022-11-23 15:55:39,150 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 [2022-11-23 15:55:39,151 INFO L413 NwaCegarLoop]: 2320 mSDtfsCounter, 924 mSDsluCounter, 2056 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 4376 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:55:39,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [924 Valid, 4376 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-23 15:55:39,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84083 states. [2022-11-23 15:55:43,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84083 to 84083. [2022-11-23 15:55:43,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84083 states, 51160 states have (on average 1.2927091477716965) internal successors, (66135), 51666 states have internal predecessors, (66135), 26565 states have call successors, (26565), 6357 states have call predecessors, (26565), 6357 states have return successors, (26565), 26189 states have call predecessors, (26565), 26565 states have call successors, (26565) [2022-11-23 15:55:43,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84083 states to 84083 states and 119265 transitions. [2022-11-23 15:55:43,718 INFO L78 Accepts]: Start accepts. Automaton has 84083 states and 119265 transitions. Word has length 431 [2022-11-23 15:55:43,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:55:43,720 INFO L495 AbstractCegarLoop]: Abstraction has 84083 states and 119265 transitions. [2022-11-23 15:55:43,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2022-11-23 15:55:43,721 INFO L276 IsEmpty]: Start isEmpty. Operand 84083 states and 119265 transitions. [2022-11-23 15:55:43,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2022-11-23 15:55:43,742 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:55:43,742 INFO L195 NwaCegarLoop]: trace histogram [43, 38, 38, 38, 38, 38, 38, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:55:43,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 15:55:43,743 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:55:43,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:55:43,744 INFO L85 PathProgramCache]: Analyzing trace with hash -2019798259, now seen corresponding path program 1 times [2022-11-23 15:55:43,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:55:43,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217444045] [2022-11-23 15:55:43,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:55:43,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:55:44,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:55:44,950 INFO L134 CoverageAnalysis]: Checked inductivity of 6058 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6051 trivial. 0 not checked. [2022-11-23 15:55:44,950 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:55:44,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217444045] [2022-11-23 15:55:44,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217444045] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:55:44,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:55:44,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:55:44,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201028059] [2022-11-23 15:55:44,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:55:44,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:55:44,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:55:44,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:55:44,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:55:44,953 INFO L87 Difference]: Start difference. First operand 84083 states and 119265 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50)