./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--intel--e1000--e1000.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--intel--e1000--e1000.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI --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 fab41d0436dc7cba585e9298d4ea8657433c856ddd8c84a196b85a427d283b0a --- 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-5e519f3 [2022-11-03 02:12:58,831 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:12:58,834 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:12:58,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:12:58,899 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:12:58,904 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:12:58,907 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:12:58,912 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:12:58,915 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:12:58,921 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:12:58,923 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:12:58,928 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:12:58,929 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:12:58,932 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:12:58,933 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:12:58,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:12:58,939 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:12:58,940 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:12:58,942 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:12:58,951 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:12:58,954 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:12:58,957 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:12:58,961 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:12:58,962 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:12:58,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:12:58,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:12:58,976 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:12:58,977 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:12:58,979 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:12:58,980 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:12:58,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:12:58,982 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:12:58,985 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:12:58,987 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:12:58,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:12:58,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:12:58,991 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:12:58,991 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:12:58,992 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:12:58,993 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:12:58,994 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:12:58,995 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:12:59,045 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:12:59,045 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:12:59,046 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:12:59,046 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:12:59,048 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:12:59,048 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:12:59,048 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:12:59,049 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:12:59,049 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:12:59,049 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:12:59,051 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:12:59,051 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:12:59,052 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:12:59,052 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:12:59,052 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:12:59,053 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:12:59,053 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:12:59,054 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:12:59,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:12:59,055 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:12:59,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:12:59,056 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:12:59,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:12:59,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:12:59,057 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:12:59,057 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:12:59,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:12:59,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:12:59,058 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:12:59,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:12:59,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:12:59,060 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:12:59,060 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:12:59,061 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:12:59,061 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:12:59,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:12:59,062 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:12:59,062 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:12:59,062 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_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fab41d0436dc7cba585e9298d4ea8657433c856ddd8c84a196b85a427d283b0a [2022-11-03 02:12:59,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:12:59,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:12:59,489 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:12:59,491 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:12:59,492 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:12:59,494 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--intel--e1000--e1000.ko-entry_point.cil.out.i [2022-11-03 02:12:59,586 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/data/3f3e9a01a/bcd4a5e4c35b48828fa38910601067c1/FLAGff38b7f5e [2022-11-03 02:13:01,303 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:13:01,305 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--intel--e1000--e1000.ko-entry_point.cil.out.i [2022-11-03 02:13:01,460 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/data/3f3e9a01a/bcd4a5e4c35b48828fa38910601067c1/FLAGff38b7f5e [2022-11-03 02:13:01,499 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/data/3f3e9a01a/bcd4a5e4c35b48828fa38910601067c1 [2022-11-03 02:13:01,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:13:01,506 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:13:01,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:13:01,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:13:01,514 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:13:01,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:13:01" (1/1) ... [2022-11-03 02:13:01,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cb9d8df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:01, skipping insertion in model container [2022-11-03 02:13:01,518 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:13:01" (1/1) ... [2022-11-03 02:13:01,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:13:01,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:13:12,059 WARN L230 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_bc5b411c-1494-454c-bdc6-f419f8973b46/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--intel--e1000--e1000.ko-entry_point.cil.out.i[833598,833611] [2022-11-03 02:13:12,506 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:13:12,653 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:13:13,781 WARN L230 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_bc5b411c-1494-454c-bdc6-f419f8973b46/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--intel--e1000--e1000.ko-entry_point.cil.out.i[833598,833611] [2022-11-03 02:13:13,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:13:14,622 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:13:14,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:14 WrapperNode [2022-11-03 02:13:14,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:13:14,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:13:14,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:13:14,625 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:13:14,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:14" (1/1) ... [2022-11-03 02:13:15,094 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:14" (1/1) ... [2022-11-03 02:13:16,263 INFO L138 Inliner]: procedures = 740, calls = 14349, calls flagged for inlining = 319, calls inlined = 270, statements flattened = 26150 [2022-11-03 02:13:16,264 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:13:16,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:13:16,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:13:16,266 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:13:16,289 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:14" (1/1) ... [2022-11-03 02:13:16,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:14" (1/1) ... [2022-11-03 02:13:16,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:14" (1/1) ... [2022-11-03 02:13:16,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:14" (1/1) ... [2022-11-03 02:13:17,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:14" (1/1) ... [2022-11-03 02:13:17,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:14" (1/1) ... [2022-11-03 02:13:17,947 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:14" (1/1) ... [2022-11-03 02:13:17,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:14" (1/1) ... [2022-11-03 02:13:18,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:13:18,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:13:18,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:13:18,149 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:13:18,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:14" (1/1) ... [2022-11-03 02:13:18,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:13:18,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:13:18,186 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:13:18,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:13:18,248 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-03 02:13:18,249 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-03 02:13:18,249 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_fc_after_link_up [2022-11-03 02:13:18,249 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_fc_after_link_up [2022-11-03 02:13:18,249 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-03 02:13:18,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-03 02:13:18,250 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_collision_dist [2022-11-03 02:13:18,250 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_collision_dist [2022-11-03 02:13:18,250 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_ee_clk [2022-11-03 02:13:18,250 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_ee_clk [2022-11-03 02:13:18,250 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-11-03 02:13:18,251 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-11-03 02:13:18,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:13:18,251 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:13:18,251 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_slot_reset [2022-11-03 02:13:18,251 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_slot_reset [2022-11-03 02:13:18,252 INFO L130 BoogieDeclarations]: Found specification of procedure reg_pattern_test [2022-11-03 02:13:18,252 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_pattern_test [2022-11-03 02:13:18,252 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-03 02:13:18,252 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-03 02:13:18,252 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 02:13:18,252 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 02:13:18,253 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-03 02:13:18,253 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-03 02:13:18,253 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_eeprom [2022-11-03 02:13:18,253 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_eeprom [2022-11-03 02:13:18,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:13:18,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:13:18,254 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_manageability [2022-11-03 02:13:18,254 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_manageability [2022-11-03 02:13:18,254 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_in_ee_bits [2022-11-03 02:13:18,254 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_in_ee_bits [2022-11-03 02:13:18,254 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down_and_stop [2022-11-03 02:13:18,254 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down_and_stop [2022-11-03 02:13:18,255 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-03 02:13:18,255 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-03 02:13:18,255 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-11-03 02:13:18,256 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-11-03 02:13:18,256 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-03 02:13:18,256 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-03 02:13:18,256 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_unmap_and_free_tx_resource [2022-11-03 02:13:18,256 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_unmap_and_free_tx_resource [2022-11-03 02:13:18,257 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_6 [2022-11-03 02:13:18,257 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_6 [2022-11-03 02:13:18,257 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-03 02:13:18,257 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-03 02:13:18,258 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_get_info [2022-11-03 02:13:18,258 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_get_info [2022-11-03 02:13:18,259 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 02:13:18,260 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 02:13:18,260 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-03 02:13:18,260 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-03 02:13:18,260 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_do_read_eeprom [2022-11-03 02:13:18,261 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_do_read_eeprom [2022-11-03 02:13:18,261 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_rctl [2022-11-03 02:13:18,261 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_rctl [2022-11-03 02:13:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-03 02:13:18,262 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-03 02:13:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set [2022-11-03 02:13:18,263 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set [2022-11-03 02:13:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 02:13:18,264 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 02:13:18,264 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset [2022-11-03 02:13:18,264 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset [2022-11-03 02:13:18,264 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2022-11-03 02:13:18,265 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2022-11-03 02:13:18,265 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_eeprom_params [2022-11-03 02:13:18,265 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_eeprom_params [2022-11-03 02:13:18,265 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_fix_features [2022-11-03 02:13:18,265 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_fix_features [2022-11-03 02:13:18,266 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2022-11-03 02:13:18,266 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2022-11-03 02:13:18,267 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-03 02:13:18,267 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-03 02:13:18,267 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 02:13:18,267 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 02:13:18,268 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-03 02:13:18,268 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-03 02:13:18,269 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 02:13:18,269 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 02:13:18,269 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 02:13:18,269 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 02:13:18,270 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-03 02:13:18,270 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-03 02:13:18,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:13:18,270 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-03 02:13:18,271 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-03 02:13:18,271 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg [2022-11-03 02:13:18,272 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg [2022-11-03 02:13:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_speed_and_duplex [2022-11-03 02:13:18,272 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_speed_and_duplex [2022-11-03 02:13:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_standby_eeprom [2022-11-03 02:13:18,274 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_standby_eeprom [2022-11-03 02:13:18,274 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_bit [2022-11-03 02:13:18,274 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_bit [2022-11-03 02:13:18,274 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-03 02:13:18,274 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-03 02:13:18,275 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure_rx [2022-11-03 02:13:18,275 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure_rx [2022-11-03 02:13:18,275 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 02:13:18,275 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 02:13:18,275 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_hw_dev [2022-11-03 02:13:18,275 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_hw_dev [2022-11-03 02:13:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_stats [2022-11-03 02:13:18,276 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_stats [2022-11-03 02:13:18,277 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_validate_option [2022-11-03 02:13:18,277 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_validate_option [2022-11-03 02:13:18,277 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 02:13:18,277 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 02:13:18,278 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 02:13:18,279 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 02:13:18,282 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link [2022-11-03 02:13:18,282 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link [2022-11-03 02:13:18,283 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_irq [2022-11-03 02:13:18,283 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_irq [2022-11-03 02:13:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 02:13:18,285 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-03 02:13:18,286 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-03 02:13:18,286 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_link [2022-11-03 02:13:18,287 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_link [2022-11-03 02:13:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_vlan_mode [2022-11-03 02:13:18,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_vlan_mode [2022-11-03 02:13:18,292 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset [2022-11-03 02:13:18,292 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset [2022-11-03 02:13:18,292 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 02:13:18,292 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 02:13:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_dsp_after_link_change [2022-11-03 02:13:18,293 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_dsp_after_link_change [2022-11-03 02:13:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 02:13:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_maybe_stop_tx [2022-11-03 02:13:18,293 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_maybe_stop_tx [2022-11-03 02:13:18,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:13:18,294 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 02:13:18,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 02:13:18,294 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-11-03 02:13:18,294 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-11-03 02:13:18,294 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shutdown [2022-11-03 02:13:18,295 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shutdown [2022-11-03 02:13:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2022-11-03 02:13:18,295 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2022-11-03 02:13:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_10 [2022-11-03 02:13:18,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_10 [2022-11-03 02:13:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 02:13:18,296 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 02:13:18,296 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_used [2022-11-03 02:13:18,296 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_used [2022-11-03 02:13:18,296 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_disable_receiver [2022-11-03 02:13:18,296 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_disable_receiver [2022-11-03 02:13:18,296 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_kill_vid [2022-11-03 02:13:18,297 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_kill_vid [2022-11-03 02:13:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_force_mac_fc [2022-11-03 02:13:18,297 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_force_mac_fc [2022-11-03 02:13:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-03 02:13:18,297 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-03 02:13:18,298 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2022-11-03 02:13:18,298 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2022-11-03 02:13:18,298 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_leave_82542_rst [2022-11-03 02:13:18,298 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_leave_82542_rst [2022-11-03 02:13:18,298 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_has_link [2022-11-03 02:13:18,298 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_has_link [2022-11-03 02:13:18,299 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-03 02:13:18,299 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-03 02:13:18,299 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 02:13:18,299 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 02:13:18,300 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2022-11-03 02:13:18,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2022-11-03 02:13:18,300 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_tx_resources [2022-11-03 02:13:18,300 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_tx_resources [2022-11-03 02:13:18,300 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_stats [2022-11-03 02:13:18,301 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_stats [2022-11-03 02:13:18,301 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-03 02:13:18,301 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-03 02:13:18,301 INFO L130 BoogieDeclarations]: Found specification of procedure pci_wake_from_d3 [2022-11-03 02:13:18,301 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_wake_from_d3 [2022-11-03 02:13:18,302 INFO L130 BoogieDeclarations]: Found specification of procedure reg_set_and_check [2022-11-03 02:13:18,302 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_set_and_check [2022-11-03 02:13:18,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-03 02:13:18,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-03 02:13:18,302 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_frag_len [2022-11-03 02:13:18,302 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_frag_len [2022-11-03 02:13:18,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:13:18,303 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_netpoll [2022-11-03 02:13:18,303 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_netpoll [2022-11-03 02:13:18,303 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-03 02:13:18,305 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-03 02:13:18,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:13:18,305 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-03 02:13:18,305 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-03 02:13:18,306 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 02:13:18,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 02:13:18,306 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_rx_mode [2022-11-03 02:13:18,306 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_rx_mode [2022-11-03 02:13:18,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:13:18,306 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 02:13:18,307 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-03 02:13:18,307 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-03 02:13:18,307 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_change_mtu [2022-11-03 02:13:18,307 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_change_mtu [2022-11-03 02:13:18,307 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_open [2022-11-03 02:13:18,307 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_open [2022-11-03 02:13:18,308 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-03 02:13:18,308 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-03 02:13:18,308 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_hw_reset [2022-11-03 02:13:18,308 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_hw_reset [2022-11-03 02:13:18,308 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_vfta [2022-11-03 02:13:18,309 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_vfta [2022-11-03 02:13:18,309 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-03 02:13:18,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-03 02:13:18,309 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_remove [2022-11-03 02:13:18,309 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_remove [2022-11-03 02:13:18,309 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_ee_bits [2022-11-03 02:13:18,309 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_ee_bits [2022-11-03 02:13:18,310 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure [2022-11-03 02:13:18,310 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure [2022-11-03 02:13:18,310 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-03 02:13:18,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-03 02:13:18,310 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-03 02:13:18,310 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-03 02:13:18,311 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 02:13:18,311 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 02:13:18,311 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_cable_length [2022-11-03 02:13:18,311 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_cable_length [2022-11-03 02:13:18,311 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-03 02:13:18,311 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-03 02:13:18,312 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_ee_clk [2022-11-03 02:13:18,312 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_ee_clk [2022-11-03 02:13:18,312 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_rx_resources [2022-11-03 02:13:18,312 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_rx_resources [2022-11-03 02:13:18,312 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_add_vid [2022-11-03 02:13:18,312 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_add_vid [2022-11-03 02:13:18,313 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2022-11-03 02:13:18,313 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2022-11-03 02:13:18,313 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2022-11-03 02:13:18,313 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2022-11-03 02:13:18,313 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-03 02:13:18,313 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-03 02:13:18,314 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_write [2022-11-03 02:13:18,315 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_write [2022-11-03 02:13:18,319 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-03 02:13:18,319 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-03 02:13:18,320 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_resume [2022-11-03 02:13:18,320 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_resume [2022-11-03 02:13:18,320 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-03 02:13:18,320 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-03 02:13:18,320 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 02:13:18,320 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 02:13:18,321 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom [2022-11-03 02:13:18,322 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom [2022-11-03 02:13:18,323 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_enter_82542_rst [2022-11-03 02:13:18,323 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_enter_82542_rst [2022-11-03 02:13:18,323 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_acquire_eeprom [2022-11-03 02:13:18,323 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_acquire_eeprom [2022-11-03 02:13:18,323 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-03 02:13:18,323 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-03 02:13:18,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:13:18,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:13:18,324 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_down_phy [2022-11-03 02:13:18,324 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_down_phy [2022-11-03 02:13:18,324 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-03 02:13:18,324 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-03 02:13:18,324 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2022-11-03 02:13:18,324 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2022-11-03 02:13:18,324 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_spi_eeprom_ready [2022-11-03 02:13:18,324 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_spi_eeprom_ready [2022-11-03 02:13:18,325 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_clear_mwi [2022-11-03 02:13:18,325 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_clear_mwi [2022-11-03 02:13:18,325 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-03 02:13:18,325 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-03 02:13:18,325 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_up_phy [2022-11-03 02:13:18,325 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_up_phy [2022-11-03 02:13:18,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 02:13:18,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 02:13:18,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:13:18,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:13:18,326 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-03 02:13:18,326 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-03 02:13:18,326 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-03 02:13:18,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-03 02:13:18,326 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_phy_info_task [2022-11-03 02:13:18,326 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_phy_info_task [2022-11-03 02:13:18,326 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_sync_single_for_cpu [2022-11-03 02:13:18,326 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_sync_single_for_cpu [2022-11-03 02:13:18,327 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-03 02:13:18,327 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-03 02:13:18,327 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg_ex [2022-11-03 02:13:18,327 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg_ex [2022-11-03 02:13:18,327 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-03 02:13:18,327 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-03 02:13:18,327 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-03 02:13:18,327 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-03 02:13:18,328 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-03 02:13:18,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 02:13:18,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 02:13:18,328 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-11-03 02:13:18,328 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-11-03 02:13:18,328 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_alloc_frag [2022-11-03 02:13:18,328 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_alloc_frag [2022-11-03 02:13:18,328 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-03 02:13:18,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-03 02:13:18,329 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-03 02:13:18,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-03 02:13:18,329 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_polarity [2022-11-03 02:13:18,329 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_polarity [2022-11-03 02:13:18,329 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-03 02:13:18,329 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-03 02:13:18,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 02:13:18,329 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 02:13:18,330 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2022-11-03 02:13:18,330 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2022-11-03 02:13:18,330 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-03 02:13:18,330 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-03 02:13:18,330 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_mdi_clk [2022-11-03 02:13:18,330 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_mdi_clk [2022-11-03 02:13:18,330 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 02:13:18,330 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 02:13:18,330 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_mac_to_phy [2022-11-03 02:13:18,331 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_mac_to_phy [2022-11-03 02:13:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom_len [2022-11-03 02:13:18,331 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom_len [2022-11-03 02:13:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 02:13:18,331 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 02:13:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_rx_resources [2022-11-03 02:13:18,331 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_rx_resources [2022-11-03 02:13:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-03 02:13:18,332 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-03 02:13:18,332 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_close [2022-11-03 02:13:18,332 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_close [2022-11-03 02:13:18,332 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset_clk_and_crs [2022-11-03 02:13:18,332 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset_clk_and_crs [2022-11-03 02:13:18,332 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-03 02:13:18,332 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-03 02:13:18,332 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 02:13:18,332 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 02:13:18,333 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-03 02:13:18,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-03 02:13:18,333 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-03 02:13:18,333 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-03 02:13:18,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:13:18,333 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 02:13:18,333 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 02:13:18,333 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-03 02:13:18,333 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-03 02:13:18,334 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 02:13:18,334 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 02:13:18,334 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_regs_len [2022-11-03 02:13:18,334 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_regs_len [2022-11-03 02:13:18,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:13:18,334 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-03 02:13:18,334 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-03 02:13:18,334 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_task [2022-11-03 02:13:18,334 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_task [2022-11-03 02:13:18,335 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_features [2022-11-03 02:13:18,335 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_features [2022-11-03 02:13:18,335 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2022-11-03 02:13:18,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2022-11-03 02:13:18,335 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-03 02:13:18,335 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-03 02:13:18,335 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_tx_resources [2022-11-03 02:13:18,335 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_tx_resources [2022-11-03 02:13:18,335 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_setup_autoneg [2022-11-03 02:13:18,336 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_setup_autoneg [2022-11-03 02:13:18,336 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_mng_vlan [2022-11-03 02:13:18,336 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_mng_vlan [2022-11-03 02:13:18,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:13:18,336 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_6 [2022-11-03 02:13:18,336 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_6 [2022-11-03 02:13:18,336 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_watchdog [2022-11-03 02:13:18,336 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_watchdog [2022-11-03 02:13:18,336 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_media_type [2022-11-03 02:13:18,337 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_media_type [2022-11-03 02:13:18,337 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_eeprom [2022-11-03 02:13:18,337 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_eeprom [2022-11-03 02:13:18,337 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_filter_on_off [2022-11-03 02:13:18,337 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_filter_on_off [2022-11-03 02:13:18,337 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-03 02:13:18,337 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-03 02:13:18,337 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-03 02:13:18,337 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-03 02:13:18,338 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_nway_reset [2022-11-03 02:13:18,338 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_nway_reset [2022-11-03 02:13:18,338 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-03 02:13:18,338 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-03 02:13:18,338 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_phy_loopback [2022-11-03 02:13:18,338 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_phy_loopback [2022-11-03 02:13:18,338 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 02:13:18,338 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 02:13:18,338 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-03 02:13:18,339 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-03 02:13:18,339 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_all_rx_rings [2022-11-03 02:13:18,339 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_all_rx_rings [2022-11-03 02:13:18,339 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_enable [2022-11-03 02:13:18,339 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_enable [2022-11-03 02:13:18,339 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_up [2022-11-03 02:13:18,339 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_up [2022-11-03 02:13:18,339 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_tx_timeout [2022-11-03 02:13:18,339 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_tx_timeout [2022-11-03 02:13:18,340 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reinit_locked [2022-11-03 02:13:18,340 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reinit_locked [2022-11-03 02:13:18,340 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_bit [2022-11-03 02:13:18,340 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_bit [2022-11-03 02:13:18,340 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_phy_reg [2022-11-03 02:13:18,340 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_phy_reg [2022-11-03 02:13:18,340 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_rx_resources [2022-11-03 02:13:18,340 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_rx_resources [2022-11-03 02:13:18,340 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_mdi_clk [2022-11-03 02:13:18,341 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_mdi_clk [2022-11-03 02:13:18,341 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-03 02:13:18,341 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-03 02:13:18,341 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 02:13:18,341 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 02:13:18,341 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_copper_link_rtl_setup [2022-11-03 02:13:18,341 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_copper_link_rtl_setup [2022-11-03 02:13:18,341 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-11-03 02:13:18,341 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-11-03 02:13:18,341 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_eeprom [2022-11-03 02:13:18,342 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_eeprom [2022-11-03 02:13:18,342 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_desc_rings [2022-11-03 02:13:18,342 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_desc_rings [2022-11-03 02:13:18,342 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_set_mwi [2022-11-03 02:13:18,342 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_set_mwi [2022-11-03 02:13:18,342 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-03 02:13:18,342 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-03 02:13:18,342 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 02:13:18,342 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 02:13:18,343 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_polarity_reversal_workaround [2022-11-03 02:13:18,343 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_polarity_reversal_workaround [2022-11-03 02:13:18,343 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-03 02:13:18,343 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-03 02:13:18,343 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-03 02:13:18,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-03 02:13:18,343 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 02:13:18,343 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 02:13:18,343 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_link_test [2022-11-03 02:13:18,343 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_link_test [2022-11-03 02:13:18,344 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_mdi_bits [2022-11-03 02:13:18,344 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_mdi_bits [2022-11-03 02:13:18,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:13:18,344 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_82547_tx_fifo_stall_task [2022-11-03 02:13:18,344 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_82547_tx_fifo_stall_task [2022-11-03 02:13:18,344 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs___0 [2022-11-03 02:13:18,344 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs___0 [2022-11-03 02:13:18,344 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_2 [2022-11-03 02:13:18,344 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_2 [2022-11-03 02:13:18,345 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_64k_bound [2022-11-03 02:13:18,345 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_64k_bound [2022-11-03 02:13:18,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:13:18,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:13:18,345 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_spd_dplx [2022-11-03 02:13:18,345 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_spd_dplx [2022-11-03 02:13:18,345 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2022-11-03 02:13:18,345 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2022-11-03 02:13:18,345 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down [2022-11-03 02:13:18,346 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down [2022-11-03 02:13:18,346 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 02:13:18,346 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 02:13:18,346 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_init_script [2022-11-03 02:13:18,346 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_init_script [2022-11-03 02:13:18,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-03 02:13:18,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-03 02:13:18,346 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-03 02:13:18,346 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-03 02:13:18,347 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-03 02:13:18,347 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-03 02:13:18,347 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2022-11-03 02:13:18,347 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2022-11-03 02:13:18,347 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_request_irq [2022-11-03 02:13:18,347 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_request_irq [2022-11-03 02:13:18,347 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_error_detected [2022-11-03 02:13:18,347 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_error_detected [2022-11-03 02:13:18,347 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-03 02:13:18,347 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-03 02:13:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_eeprom [2022-11-03 02:13:18,348 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_eeprom [2022-11-03 02:13:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw [2022-11-03 02:13:18,348 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw [2022-11-03 02:13:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_disable [2022-11-03 02:13:18,348 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_disable [2022-11-03 02:13:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-11-03 02:13:18,348 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-11-03 02:13:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-03 02:13:18,349 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-03 02:13:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs___0 [2022-11-03 02:13:18,349 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs___0 [2022-11-03 02:13:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2022-11-03 02:13:18,349 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2022-11-03 02:13:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_9 [2022-11-03 02:13:18,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_9 [2022-11-03 02:13:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_tx_ring [2022-11-03 02:13:18,349 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_tx_ring [2022-11-03 02:13:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_shutdown [2022-11-03 02:13:18,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_shutdown [2022-11-03 02:13:18,350 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_tx_resources [2022-11-03 02:13:18,350 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_tx_resources [2022-11-03 02:13:18,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_19 [2022-11-03 02:13:18,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_19 [2022-11-03 02:13:18,350 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-03 02:13:18,350 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-03 02:13:18,350 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-03 02:13:18,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-03 02:13:18,350 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-03 02:13:18,350 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-03 02:13:18,350 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_manageability [2022-11-03 02:13:18,350 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_manageability [2022-11-03 02:13:18,350 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-11-03 02:13:18,351 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-11-03 02:13:18,351 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-03 02:13:18,351 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-03 02:13:18,351 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_wol_exclusion [2022-11-03 02:13:18,351 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_wol_exclusion [2022-11-03 02:13:18,351 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 02:13:18,351 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 02:13:18,351 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-03 02:13:18,351 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-03 02:13:18,351 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_ioctl [2022-11-03 02:13:18,351 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_ioctl [2022-11-03 02:13:18,352 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-03 02:13:18,352 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-03 02:13:18,352 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_mac [2022-11-03 02:13:18,352 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_mac [2022-11-03 02:13:18,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:13:18,352 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-11-03 02:13:18,352 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-11-03 02:13:18,352 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_rx_ring [2022-11-03 02:13:18,352 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_rx_ring [2022-11-03 02:13:18,353 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-03 02:13:18,353 INFO L130 BoogieDeclarations]: Found specification of procedure skb_free_frag [2022-11-03 02:13:18,353 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_free_frag [2022-11-03 02:13:20,913 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:13:20,920 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:13:22,624 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:14:39,016 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:14:51,765 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:14:51,765 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-03 02:14:51,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:14:51 BoogieIcfgContainer [2022-11-03 02:14:51,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:14:51,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:14:51,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:14:51,784 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:14:51,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:13:01" (1/3) ... [2022-11-03 02:14:51,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bfebbe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:14:51, skipping insertion in model container [2022-11-03 02:14:51,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:14" (2/3) ... [2022-11-03 02:14:51,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bfebbe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:14:51, skipping insertion in model container [2022-11-03 02:14:51,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:14:51" (3/3) ... [2022-11-03 02:14:51,789 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--intel--e1000--e1000.ko-entry_point.cil.out.i [2022-11-03 02:14:51,813 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:14:51,814 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:14:52,013 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:14:52,022 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;@fc358ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:14:52,022 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:14:52,043 INFO L276 IsEmpty]: Start isEmpty. Operand has 6450 states, 4100 states have (on average 1.3390243902439025) internal successors, (5490), 4199 states have internal predecessors, (5490), 2097 states have call successors, (2097), 254 states have call predecessors, (2097), 253 states have return successors, (2087), 2081 states have call predecessors, (2087), 2087 states have call successors, (2087) [2022-11-03 02:14:52,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-03 02:14:52,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:14:52,068 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:14:52,069 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:14:52,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:14:52,077 INFO L85 PathProgramCache]: Analyzing trace with hash -886738117, now seen corresponding path program 1 times [2022-11-03 02:14:52,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:14:52,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315730474] [2022-11-03 02:14:52,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:14:52,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:14:53,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:14:54,556 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2022-11-03 02:14:54,557 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:14:54,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315730474] [2022-11-03 02:14:54,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315730474] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:14:54,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:14:54,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:14:54,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444866044] [2022-11-03 02:14:54,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:14:54,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:14:54,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:14:54,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:14:54,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:14:54,632 INFO L87 Difference]: Start difference. First operand has 6450 states, 4100 states have (on average 1.3390243902439025) internal successors, (5490), 4199 states have internal predecessors, (5490), 2097 states have call successors, (2097), 254 states have call predecessors, (2097), 253 states have return successors, (2087), 2081 states have call predecessors, (2087), 2087 states have call successors, (2087) Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-03 02:14:57,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:01,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:05,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:09,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:12,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:15:18,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:20,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:26,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:29,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:29,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:15:29,842 INFO L93 Difference]: Finished difference Result 19096 states and 28740 transitions. [2022-11-03 02:15:29,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:15:29,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 156 [2022-11-03 02:15:29,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:15:30,025 INFO L225 Difference]: With dead ends: 19096 [2022-11-03 02:15:30,026 INFO L226 Difference]: Without dead ends: 12625 [2022-11-03 02:15:30,108 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 [2022-11-03 02:15:30,111 INFO L413 NwaCegarLoop]: 11011 mSDtfsCounter, 9315 mSDsluCounter, 9637 mSDsCounter, 0 mSdLazyCounter, 1601 mSolverCounterSat, 3 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9322 SdHoareTripleChecker+Valid, 19860 SdHoareTripleChecker+Invalid, 1612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1601 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:15:30,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9322 Valid, 19860 Invalid, 1612 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1601 Invalid, 8 Unknown, 0 Unchecked, 34.2s Time] [2022-11-03 02:15:30,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12625 states. [2022-11-03 02:15:31,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12625 to 12618. [2022-11-03 02:15:31,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12618 states, 8002 states have (on average 1.332416895776056) internal successors, (10662), 8172 states have internal predecessors, (10662), 4112 states have call successors, (4112), 505 states have call predecessors, (4112), 503 states have return successors, (4113), 4094 states have call predecessors, (4113), 4109 states have call successors, (4113) [2022-11-03 02:15:31,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12618 states to 12618 states and 18887 transitions. [2022-11-03 02:15:31,673 INFO L78 Accepts]: Start accepts. Automaton has 12618 states and 18887 transitions. Word has length 156 [2022-11-03 02:15:31,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:15:31,679 INFO L495 AbstractCegarLoop]: Abstraction has 12618 states and 18887 transitions. [2022-11-03 02:15:31,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-03 02:15:31,680 INFO L276 IsEmpty]: Start isEmpty. Operand 12618 states and 18887 transitions. [2022-11-03 02:15:31,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-11-03 02:15:31,702 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:15:31,703 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:15:31,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:15:31,704 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:15:31,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:15:31,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1560704130, now seen corresponding path program 1 times [2022-11-03 02:15:31,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:15:31,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111496735] [2022-11-03 02:15:31,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:31,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:15:32,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:15:33,240 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2022-11-03 02:15:33,241 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:15:33,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111496735] [2022-11-03 02:15:33,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111496735] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:15:33,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:15:33,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:15:33,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130945929] [2022-11-03 02:15:33,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:15:33,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:15:33,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:15:33,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:15:33,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:15:33,246 INFO L87 Difference]: Start difference. First operand 12618 states and 18887 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 02:15:35,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:38,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:15:41,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:45,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:47,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:49,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:51,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:53,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:58,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:00,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:05,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:09,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:09,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:16:09,782 INFO L93 Difference]: Finished difference Result 23507 states and 35063 transitions. [2022-11-03 02:16:09,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:16:09,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 170 [2022-11-03 02:16:09,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:16:10,020 INFO L225 Difference]: With dead ends: 23507 [2022-11-03 02:16:10,020 INFO L226 Difference]: Without dead ends: 23504 [2022-11-03 02:16:10,046 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 [2022-11-03 02:16:10,049 INFO L413 NwaCegarLoop]: 10627 mSDtfsCounter, 8093 mSDsluCounter, 9549 mSDsCounter, 0 mSdLazyCounter, 1578 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8103 SdHoareTripleChecker+Valid, 19389 SdHoareTripleChecker+Invalid, 1588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1578 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:16:10,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8103 Valid, 19389 Invalid, 1588 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1578 Invalid, 9 Unknown, 0 Unchecked, 35.7s Time] [2022-11-03 02:16:10,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23504 states. [2022-11-03 02:16:11,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23504 to 23426. [2022-11-03 02:16:11,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23426 states, 14745 states have (on average 1.3265513733468972) internal successors, (19560), 15085 states have internal predecessors, (19560), 7690 states have call successors, (7690), 993 states have call predecessors, (7690), 990 states have return successors, (7711), 7653 states have call predecessors, (7711), 7687 states have call successors, (7711) [2022-11-03 02:16:12,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23426 states to 23426 states and 34961 transitions. [2022-11-03 02:16:12,221 INFO L78 Accepts]: Start accepts. Automaton has 23426 states and 34961 transitions. Word has length 170 [2022-11-03 02:16:12,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:16:12,222 INFO L495 AbstractCegarLoop]: Abstraction has 23426 states and 34961 transitions. [2022-11-03 02:16:12,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 02:16:12,223 INFO L276 IsEmpty]: Start isEmpty. Operand 23426 states and 34961 transitions. [2022-11-03 02:16:12,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-11-03 02:16:12,229 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:16:12,229 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:16:12,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:16:12,229 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:16:12,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:16:12,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1140561110, now seen corresponding path program 1 times [2022-11-03 02:16:12,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:16:12,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162238661] [2022-11-03 02:16:12,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:12,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:16:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:13,996 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2022-11-03 02:16:13,997 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:16:13,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162238661] [2022-11-03 02:16:13,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162238661] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:16:13,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:16:13,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:16:13,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451699829] [2022-11-03 02:16:13,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:16:13,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:16:13,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:16:14,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:16:14,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:16:14,000 INFO L87 Difference]: Start difference. First operand 23426 states and 34961 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 02:16:16,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:18,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:16:22,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:26,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:29,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:34,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:36,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:38,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:48,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:49,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:16:49,647 INFO L93 Difference]: Finished difference Result 27497 states and 41156 transitions. [2022-11-03 02:16:49,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:16:49,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 171 [2022-11-03 02:16:49,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:16:49,832 INFO L225 Difference]: With dead ends: 27497 [2022-11-03 02:16:49,832 INFO L226 Difference]: Without dead ends: 27494 [2022-11-03 02:16:49,856 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 [2022-11-03 02:16:49,857 INFO L413 NwaCegarLoop]: 10946 mSDtfsCounter, 9175 mSDsluCounter, 9552 mSDsCounter, 0 mSdLazyCounter, 1587 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9186 SdHoareTripleChecker+Valid, 19711 SdHoareTripleChecker+Invalid, 1597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1587 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:16:49,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9186 Valid, 19711 Invalid, 1597 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1587 Invalid, 9 Unknown, 0 Unchecked, 34.8s Time] [2022-11-03 02:16:49,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27494 states. [2022-11-03 02:16:51,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27494 to 27412. [2022-11-03 02:16:51,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27412 states, 17363 states have (on average 1.3317399066981512) internal successors, (23123), 17718 states have internal predecessors, (23123), 8953 states have call successors, (8953), 1101 states have call predecessors, (8953), 1095 states have return successors, (8972), 8913 states have call predecessors, (8972), 8950 states have call successors, (8972) [2022-11-03 02:16:52,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27412 states to 27412 states and 41048 transitions. [2022-11-03 02:16:52,152 INFO L78 Accepts]: Start accepts. Automaton has 27412 states and 41048 transitions. Word has length 171 [2022-11-03 02:16:52,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:16:52,154 INFO L495 AbstractCegarLoop]: Abstraction has 27412 states and 41048 transitions. [2022-11-03 02:16:52,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 02:16:52,154 INFO L276 IsEmpty]: Start isEmpty. Operand 27412 states and 41048 transitions. [2022-11-03 02:16:52,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-03 02:16:52,160 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:16:52,161 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:16:52,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:16:52,161 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:16:52,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:16:52,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1001024511, now seen corresponding path program 1 times [2022-11-03 02:16:52,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:16:52,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055283602] [2022-11-03 02:16:52,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:52,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:16:52,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:53,756 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2022-11-03 02:16:53,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:16:53,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055283602] [2022-11-03 02:16:53,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055283602] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:16:53,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:16:53,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:16:53,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264539505] [2022-11-03 02:16:53,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:16:53,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:16:53,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:16:53,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:16:53,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:16:53,759 INFO L87 Difference]: Start difference. First operand 27412 states and 41048 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 02:16:56,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:58,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:17:02,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:05,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:09,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:12,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:14,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:25,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:25,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:17:25,887 INFO L93 Difference]: Finished difference Result 27492 states and 41149 transitions. [2022-11-03 02:17:25,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:17:25,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 172 [2022-11-03 02:17:25,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:17:26,155 INFO L225 Difference]: With dead ends: 27492 [2022-11-03 02:17:26,155 INFO L226 Difference]: Without dead ends: 27485 [2022-11-03 02:17:26,172 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 [2022-11-03 02:17:26,177 INFO L413 NwaCegarLoop]: 10947 mSDtfsCounter, 9171 mSDsluCounter, 9555 mSDsCounter, 0 mSdLazyCounter, 1587 mSolverCounterSat, 0 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9182 SdHoareTripleChecker+Valid, 19715 SdHoareTripleChecker+Invalid, 1595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1587 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:17:26,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9182 Valid, 19715 Invalid, 1595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1587 Invalid, 8 Unknown, 0 Unchecked, 31.1s Time] [2022-11-03 02:17:26,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27485 states. [2022-11-03 02:17:28,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27485 to 27409. [2022-11-03 02:17:28,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27409 states, 17360 states have (on average 1.3316820276497696) internal successors, (23118), 17715 states have internal predecessors, (23118), 8953 states have call successors, (8953), 1101 states have call predecessors, (8953), 1095 states have return successors, (8972), 8913 states have call predecessors, (8972), 8950 states have call successors, (8972) [2022-11-03 02:17:28,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27409 states to 27409 states and 41043 transitions. [2022-11-03 02:17:28,364 INFO L78 Accepts]: Start accepts. Automaton has 27409 states and 41043 transitions. Word has length 172 [2022-11-03 02:17:28,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:17:28,365 INFO L495 AbstractCegarLoop]: Abstraction has 27409 states and 41043 transitions. [2022-11-03 02:17:28,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 02:17:28,365 INFO L276 IsEmpty]: Start isEmpty. Operand 27409 states and 41043 transitions. [2022-11-03 02:17:28,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2022-11-03 02:17:28,598 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:17:28,598 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:17:28,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:17:28,599 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:17:28,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:17:28,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1139776883, now seen corresponding path program 1 times [2022-11-03 02:17:28,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:17:28,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512222958] [2022-11-03 02:17:28,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:28,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:17:29,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:30,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:17:30,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512222958] [2022-11-03 02:17:30,124 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-03 02:17:30,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408731479] [2022-11-03 02:17:30,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:30,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:17:30,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:17:30,127 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:17:30,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:17:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:36,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 19874 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 02:17:36,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:17:36,683 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2022-11-03 02:17:36,687 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:17:36,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408731479] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:17:36,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:17:36,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:17:36,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100919592] [2022-11-03 02:17:36,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:17:36,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:17:36,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:17:36,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:17:36,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:17:36,691 INFO L87 Difference]: Start difference. First operand 27409 states and 41043 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 2 states have call successors, (82), 2 states have call predecessors, (82), 2 states have return successors, (81), 2 states have call predecessors, (81), 2 states have call successors, (81) [2022-11-03 02:17:39,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:45,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:49,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:51,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:54,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:56,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:57,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:04,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:05,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:07,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:11,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:13,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:14,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:18:14,324 INFO L93 Difference]: Finished difference Result 54789 states and 82300 transitions. [2022-11-03 02:18:14,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:18:14,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 2 states have call successors, (82), 2 states have call predecessors, (82), 2 states have return successors, (81), 2 states have call predecessors, (81), 2 states have call successors, (81) Word has length 532 [2022-11-03 02:18:14,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:18:14,565 INFO L225 Difference]: With dead ends: 54789 [2022-11-03 02:18:14,565 INFO L226 Difference]: Without dead ends: 27409 [2022-11-03 02:18:14,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 530 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:18:14,771 INFO L413 NwaCegarLoop]: 8808 mSDtfsCounter, 43 mSDsluCounter, 9531 mSDsCounter, 0 mSdLazyCounter, 1574 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 17556 SdHoareTripleChecker+Invalid, 1584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1574 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:18:14,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 17556 Invalid, 1584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1574 Invalid, 8 Unknown, 0 Unchecked, 36.2s Time] [2022-11-03 02:18:14,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27409 states. [2022-11-03 02:18:16,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27409 to 27409. [2022-11-03 02:18:16,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27409 states, 17360 states have (on average 1.331451612903226) internal successors, (23114), 17715 states have internal predecessors, (23114), 8953 states have call successors, (8953), 1101 states have call predecessors, (8953), 1095 states have return successors, (8972), 8913 states have call predecessors, (8972), 8950 states have call successors, (8972) [2022-11-03 02:18:16,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27409 states to 27409 states and 41039 transitions. [2022-11-03 02:18:16,752 INFO L78 Accepts]: Start accepts. Automaton has 27409 states and 41039 transitions. Word has length 532 [2022-11-03 02:18:16,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:18:16,755 INFO L495 AbstractCegarLoop]: Abstraction has 27409 states and 41039 transitions. [2022-11-03 02:18:16,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 2 states have call successors, (82), 2 states have call predecessors, (82), 2 states have return successors, (81), 2 states have call predecessors, (81), 2 states have call successors, (81) [2022-11-03 02:18:16,756 INFO L276 IsEmpty]: Start isEmpty. Operand 27409 states and 41039 transitions. [2022-11-03 02:18:16,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2022-11-03 02:18:16,883 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:18:16,883 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:18:16,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:18:17,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:18:17,097 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:18:17,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:18:17,098 INFO L85 PathProgramCache]: Analyzing trace with hash 772162351, now seen corresponding path program 1 times [2022-11-03 02:18:17,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:18:17,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847167020] [2022-11-03 02:18:17,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:18:17,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:18:18,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:18:18,744 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:18:18,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847167020] [2022-11-03 02:18:18,744 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-03 02:18:18,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349123331] [2022-11-03 02:18:18,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:18:18,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:18:18,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:18:18,746 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:18:18,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:18:25,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:18:25,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 19941 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 02:18:25,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:18:25,243 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2022-11-03 02:18:25,244 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:18:25,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349123331] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:18:25,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:18:25,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:18:25,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525282628] [2022-11-03 02:18:25,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:18:25,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:18:25,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:18:25,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:18:25,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:18:25,249 INFO L87 Difference]: Start difference. First operand 27409 states and 41039 transitions. Second operand has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 2 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (83), 2 states have call predecessors, (83), 2 states have call successors, (83) [2022-11-03 02:18:27,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:34,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:36,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:40,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:43,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:47,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:55,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:57,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:02,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:02,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:19:02,611 INFO L93 Difference]: Finished difference Result 80009 states and 119802 transitions. [2022-11-03 02:19:02,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:19:02,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 2 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (83), 2 states have call predecessors, (83), 2 states have call successors, (83) Word has length 537 [2022-11-03 02:19:02,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:19:03,150 INFO L225 Difference]: With dead ends: 80009 [2022-11-03 02:19:03,150 INFO L226 Difference]: Without dead ends: 52629 [2022-11-03 02:19:03,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 535 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:19:03,284 INFO L413 NwaCegarLoop]: 12581 mSDtfsCounter, 8582 mSDsluCounter, 9549 mSDsCounter, 0 mSdLazyCounter, 1856 mSolverCounterSat, 17 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8588 SdHoareTripleChecker+Valid, 21351 SdHoareTripleChecker+Invalid, 1881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1856 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:19:03,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8588 Valid, 21351 Invalid, 1881 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 1856 Invalid, 8 Unknown, 0 Unchecked, 35.1s Time] [2022-11-03 02:19:03,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52629 states. [2022-11-03 02:19:06,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52629 to 52614. [2022-11-03 02:19:06,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52614 states, 33327 states have (on average 1.330062711915264) internal successors, (44327), 34012 states have internal predecessors, (44327), 17179 states have call successors, (17179), 2119 states have call predecessors, (17179), 2107 states have return successors, (17224), 17103 states have call predecessors, (17224), 17176 states have call successors, (17224) [2022-11-03 02:19:07,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52614 states to 52614 states and 78730 transitions. [2022-11-03 02:19:07,330 INFO L78 Accepts]: Start accepts. Automaton has 52614 states and 78730 transitions. Word has length 537 [2022-11-03 02:19:07,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:19:07,331 INFO L495 AbstractCegarLoop]: Abstraction has 52614 states and 78730 transitions. [2022-11-03 02:19:07,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 2 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (83), 2 states have call predecessors, (83), 2 states have call successors, (83) [2022-11-03 02:19:07,331 INFO L276 IsEmpty]: Start isEmpty. Operand 52614 states and 78730 transitions. [2022-11-03 02:19:07,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2022-11-03 02:19:07,810 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:19:07,824 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:19:07,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:19:08,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:19:08,028 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:19:08,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:19:08,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1480533787, now seen corresponding path program 1 times [2022-11-03 02:19:08,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:19:08,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346432801] [2022-11-03 02:19:08,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:19:08,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:19:08,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:19:09,382 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:19:09,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346432801] [2022-11-03 02:19:09,382 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-03 02:19:09,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348191823] [2022-11-03 02:19:09,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:19:09,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:19:09,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:19:09,385 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:19:09,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:19:15,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:19:15,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 20115 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 02:19:15,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:19:17,662 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked. [2022-11-03 02:19:17,663 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:19:17,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [348191823] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:19:17,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:19:17,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:19:17,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515748288] [2022-11-03 02:19:17,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:19:17,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:19:17,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:19:17,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:19:17,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:19:17,667 INFO L87 Difference]: Start difference. First operand 52614 states and 78730 transitions. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 3 states have call successors, (87), 3 states have call predecessors, (87), 2 states have return successors, (86), 2 states have call predecessors, (86), 2 states have call successors, (86) [2022-11-03 02:19:19,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:24,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:28,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:31,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:33,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:36,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:19:45,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:47,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:54,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:55,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:19:55,468 INFO L93 Difference]: Finished difference Result 79079 states and 118323 transitions. [2022-11-03 02:19:55,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:19:55,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 3 states have call successors, (87), 3 states have call predecessors, (87), 2 states have return successors, (86), 2 states have call predecessors, (86), 2 states have call successors, (86) Word has length 565 [2022-11-03 02:19:55,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:19:56,052 INFO L225 Difference]: With dead ends: 79079 [2022-11-03 02:19:56,052 INFO L226 Difference]: Without dead ends: 79070 [2022-11-03 02:19:56,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 563 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:19:56,094 INFO L413 NwaCegarLoop]: 10874 mSDtfsCounter, 9117 mSDsluCounter, 9584 mSDsCounter, 0 mSdLazyCounter, 1589 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9121 SdHoareTripleChecker+Valid, 19673 SdHoareTripleChecker+Invalid, 1599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1589 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:19:56,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9121 Valid, 19673 Invalid, 1599 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1589 Invalid, 8 Unknown, 0 Unchecked, 35.2s Time] [2022-11-03 02:19:56,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79070 states. [2022-11-03 02:20:00,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79070 to 79068. [2022-11-03 02:20:00,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79068 states, 50091 states have (on average 1.3301391467529098) internal successors, (66628), 51118 states have internal predecessors, (66628), 25805 states have call successors, (25805), 3188 states have call predecessors, (25805), 3171 states have return successors, (25876), 25693 states have call predecessors, (25876), 25802 states have call successors, (25876) [2022-11-03 02:20:01,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79068 states to 79068 states and 118309 transitions. [2022-11-03 02:20:01,767 INFO L78 Accepts]: Start accepts. Automaton has 79068 states and 118309 transitions. Word has length 565 [2022-11-03 02:20:01,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:20:01,771 INFO L495 AbstractCegarLoop]: Abstraction has 79068 states and 118309 transitions. [2022-11-03 02:20:01,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 3 states have call successors, (87), 3 states have call predecessors, (87), 2 states have return successors, (86), 2 states have call predecessors, (86), 2 states have call successors, (86) [2022-11-03 02:20:01,771 INFO L276 IsEmpty]: Start isEmpty. Operand 79068 states and 118309 transitions. [2022-11-03 02:20:02,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2022-11-03 02:20:02,117 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:20:02,118 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:20:02,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 02:20:02,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:20:02,345 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:20:02,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:20:02,345 INFO L85 PathProgramCache]: Analyzing trace with hash 250544174, now seen corresponding path program 1 times [2022-11-03 02:20:02,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:20:02,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788256469] [2022-11-03 02:20:02,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:20:02,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:20:03,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:20:03,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:20:03,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788256469] [2022-11-03 02:20:03,529 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-03 02:20:03,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217977435] [2022-11-03 02:20:03,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:20:03,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:20:03,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:20:03,531 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:20:03,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 02:20:10,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:20:11,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 20262 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 02:20:11,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:20:11,132 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2022-11-03 02:20:11,132 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:20:11,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217977435] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:20:11,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:20:11,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:20:11,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823781679] [2022-11-03 02:20:11,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:20:11,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:20:11,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:20:11,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:20:11,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:20:11,136 INFO L87 Difference]: Start difference. First operand 79068 states and 118309 transitions. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 3 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (86), 3 states have call predecessors, (86), 3 states have call successors, (86) [2022-11-03 02:20:13,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:16,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:20:21,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:25,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:28,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:31,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:36,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:38,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:45,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:46,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:20:46,731 INFO L93 Difference]: Finished difference Result 123292 states and 185359 transitions. [2022-11-03 02:20:46,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:20:46,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 3 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (86), 3 states have call predecessors, (86), 3 states have call successors, (86) Word has length 575 [2022-11-03 02:20:46,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:20:47,374 INFO L225 Difference]: With dead ends: 123292 [2022-11-03 02:20:47,374 INFO L226 Difference]: Without dead ends: 87122 [2022-11-03 02:20:47,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 574 GetRequests, 573 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:20:47,547 INFO L413 NwaCegarLoop]: 10868 mSDtfsCounter, 1331 mSDsluCounter, 10050 mSDsCounter, 0 mSdLazyCounter, 1784 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1793 SdHoareTripleChecker+Valid, 20134 SdHoareTripleChecker+Invalid, 1793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1784 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:20:47,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1793 Valid, 20134 Invalid, 1793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1784 Invalid, 8 Unknown, 0 Unchecked, 32.7s Time] [2022-11-03 02:20:47,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87122 states. [2022-11-03 02:20:52,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87122 to 79078. [2022-11-03 02:20:52,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79078 states, 50099 states have (on average 1.330126349827342) internal successors, (66638), 51126 states have internal predecessors, (66638), 25807 states have call successors, (25807), 3188 states have call predecessors, (25807), 3171 states have return successors, (25878), 25695 states have call predecessors, (25878), 25804 states have call successors, (25878) [2022-11-03 02:20:53,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79078 states to 79078 states and 118323 transitions. [2022-11-03 02:20:53,493 INFO L78 Accepts]: Start accepts. Automaton has 79078 states and 118323 transitions. Word has length 575 [2022-11-03 02:20:53,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:20:53,494 INFO L495 AbstractCegarLoop]: Abstraction has 79078 states and 118323 transitions. [2022-11-03 02:20:53,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 3 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (86), 3 states have call predecessors, (86), 3 states have call successors, (86) [2022-11-03 02:20:53,495 INFO L276 IsEmpty]: Start isEmpty. Operand 79078 states and 118323 transitions. [2022-11-03 02:20:53,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2022-11-03 02:20:53,803 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:20:53,803 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:20:53,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 02:20:54,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:20:54,017 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:20:54,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:20:54,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1826541690, now seen corresponding path program 1 times [2022-11-03 02:20:54,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:20:54,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66205835] [2022-11-03 02:20:54,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:20:54,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:20:55,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:20:55,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:20:55,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66205835] [2022-11-03 02:20:55,443 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-03 02:20:55,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1603537395] [2022-11-03 02:20:55,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:20:55,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:20:55,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:20:55,445 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:20:55,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 02:21:02,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:21:02,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 20553 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:21:02,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:21:03,005 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2022-11-03 02:21:03,005 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:21:03,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1603537395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:21:03,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:21:03,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:21:03,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807836827] [2022-11-03 02:21:03,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:21:03,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:21:03,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:21:03,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:21:03,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:21:03,008 INFO L87 Difference]: Start difference. First operand 79078 states and 118323 transitions. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 2 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) [2022-11-03 02:21:05,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:08,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:10,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:13,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:15,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:18,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:22,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:21:29,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:31,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:38,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:40,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:49,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:52,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:53,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:21:53,460 INFO L93 Difference]: Finished difference Result 177740 states and 265933 transitions. [2022-11-03 02:21:53,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:21:53,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 2 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) Word has length 609 [2022-11-03 02:21:53,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:21:54,269 INFO L225 Difference]: With dead ends: 177740 [2022-11-03 02:21:54,269 INFO L226 Difference]: Without dead ends: 98691 [2022-11-03 02:21:54,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 608 GetRequests, 607 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:21:54,642 INFO L413 NwaCegarLoop]: 16218 mSDtfsCounter, 8767 mSDsluCounter, 9572 mSDsCounter, 0 mSdLazyCounter, 2205 mSolverCounterSat, 0 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8789 SdHoareTripleChecker+Valid, 25001 SdHoareTripleChecker+Invalid, 2215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2205 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:21:54,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8789 Valid, 25001 Invalid, 2215 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2205 Invalid, 10 Unknown, 0 Unchecked, 45.8s Time] [2022-11-03 02:21:54,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98691 states. [2022-11-03 02:22:00,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98691 to 98574. [2022-11-03 02:22:00,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98574 states, 62609 states have (on average 1.332763660176652) internal successors, (83443), 63847 states have internal predecessors, (83443), 31993 states have call successors, (31993), 4001 states have call predecessors, (31993), 3971 states have return successors, (32075), 31851 states have call predecessors, (32075), 31990 states have call successors, (32075) [2022-11-03 02:22:01,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98574 states to 98574 states and 147511 transitions. [2022-11-03 02:22:01,471 INFO L78 Accepts]: Start accepts. Automaton has 98574 states and 147511 transitions. Word has length 609 [2022-11-03 02:22:01,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:01,472 INFO L495 AbstractCegarLoop]: Abstraction has 98574 states and 147511 transitions. [2022-11-03 02:22:01,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 2 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) [2022-11-03 02:22:01,472 INFO L276 IsEmpty]: Start isEmpty. Operand 98574 states and 147511 transitions. [2022-11-03 02:22:01,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 688 [2022-11-03 02:22:01,883 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:01,884 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 6, 6, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:01,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:02,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-03 02:22:02,085 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:02,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:02,085 INFO L85 PathProgramCache]: Analyzing trace with hash -2077432503, now seen corresponding path program 1 times [2022-11-03 02:22:02,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:22:02,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991723208] [2022-11-03 02:22:02,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:02,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:22:03,221 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:22:03,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [727832033] [2022-11-03 02:22:03,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:03,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:22:03,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:22:03,223 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:22:03,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5b411c-1494-454c-bdc6-f419f8973b46/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process