./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 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS/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_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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-8393723 [2022-11-19 08:18:16,247 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:18:16,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:18:16,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:18:16,292 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:18:16,294 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:18:16,297 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:18:16,301 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:18:16,305 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:18:16,309 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:18:16,311 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:18:16,313 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:18:16,314 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:18:16,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:18:16,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:18:16,320 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:18:16,322 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:18:16,327 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:18:16,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:18:16,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:18:16,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:18:16,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:18:16,339 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:18:16,340 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:18:16,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:18:16,352 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:18:16,352 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:18:16,353 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:18:16,355 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:18:16,356 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:18:16,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:18:16,358 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:18:16,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:18:16,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:18:16,363 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:18:16,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:18:16,364 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:18:16,365 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:18:16,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:18:16,366 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:18:16,367 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:18:16,371 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 08:18:16,412 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:18:16,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:18:16,413 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:18:16,413 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:18:16,414 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:18:16,414 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:18:16,414 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:18:16,414 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:18:16,415 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:18:16,415 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:18:16,416 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:18:16,416 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:18:16,416 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:18:16,416 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:18:16,417 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:18:16,417 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:18:16,417 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:18:16,417 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:18:16,418 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:18:16,418 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:18:16,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:18:16,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:18:16,419 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:18:16,420 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:18:16,420 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:18:16,420 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:18:16,421 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:18:16,421 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:18:16,421 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:18:16,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:18:16,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:18:16,422 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:18:16,422 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:18:16,422 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:18:16,422 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:18:16,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:18:16,423 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:18:16,423 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:18:16,423 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_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fab41d0436dc7cba585e9298d4ea8657433c856ddd8c84a196b85a427d283b0a [2022-11-19 08:18:16,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:18:16,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:18:16,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:18:16,756 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:18:16,757 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:18:16,758 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS/../../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 [2022-11-19 08:18:16,853 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS/data/5d0acc084/b6c815889d884627923e199a957a47f0/FLAG2b6615b53 [2022-11-19 08:18:18,233 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:18:18,234 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/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 [2022-11-19 08:18:18,348 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS/data/5d0acc084/b6c815889d884627923e199a957a47f0/FLAG2b6615b53 [2022-11-19 08:18:18,660 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS/data/5d0acc084/b6c815889d884627923e199a957a47f0 [2022-11-19 08:18:18,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:18:18,666 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:18:18,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:18:18,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:18:18,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:18:18,675 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:18:18" (1/1) ... [2022-11-19 08:18:18,676 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@159c9488 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:18, skipping insertion in model container [2022-11-19 08:18:18,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:18:18" (1/1) ... [2022-11-19 08:18:18,713 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:18:18,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:18:27,811 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/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] [2022-11-19 08:18:28,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:18:28,408 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:18:29,427 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/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] [2022-11-19 08:18:29,442 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:18:29,996 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:18:29,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:29 WrapperNode [2022-11-19 08:18:29,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:18:29,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:18:29,998 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:18:29,998 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:18:30,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:29" (1/1) ... [2022-11-19 08:18:30,364 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:29" (1/1) ... [2022-11-19 08:18:31,037 INFO L138 Inliner]: procedures = 740, calls = 14365, calls flagged for inlining = 319, calls inlined = 270, statements flattened = 26501 [2022-11-19 08:18:31,038 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:18:31,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:18:31,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:18:31,040 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:18:31,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:29" (1/1) ... [2022-11-19 08:18:31,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:29" (1/1) ... [2022-11-19 08:18:31,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:29" (1/1) ... [2022-11-19 08:18:31,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:29" (1/1) ... [2022-11-19 08:18:31,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:29" (1/1) ... [2022-11-19 08:18:32,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:29" (1/1) ... [2022-11-19 08:18:32,193 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:29" (1/1) ... [2022-11-19 08:18:32,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:29" (1/1) ... [2022-11-19 08:18:32,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:18:32,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:18:32,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:18:32,542 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:18:32,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:29" (1/1) ... [2022-11-19 08:18:32,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:18:32,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:18:32,620 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:18:32,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:18:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-19 08:18:32,763 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-19 08:18:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_fc_after_link_up [2022-11-19 08:18:32,763 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_fc_after_link_up [2022-11-19 08:18:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-19 08:18:32,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-19 08:18:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_collision_dist [2022-11-19 08:18:32,764 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_collision_dist [2022-11-19 08:18:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_ee_clk [2022-11-19 08:18:32,764 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_ee_clk [2022-11-19 08:18:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-11-19 08:18:32,765 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-11-19 08:18:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 08:18:32,765 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 08:18:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_slot_reset [2022-11-19 08:18:32,765 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_slot_reset [2022-11-19 08:18:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure reg_pattern_test [2022-11-19 08:18:32,766 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_pattern_test [2022-11-19 08:18:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-19 08:18:32,766 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-19 08:18:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-19 08:18:32,766 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-19 08:18:32,767 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-19 08:18:32,767 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-19 08:18:32,767 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_eeprom [2022-11-19 08:18:32,767 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_eeprom [2022-11-19 08:18:32,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 08:18:32,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 08:18:32,768 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_manageability [2022-11-19 08:18:32,768 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_manageability [2022-11-19 08:18:32,768 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_in_ee_bits [2022-11-19 08:18:32,768 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_in_ee_bits [2022-11-19 08:18:32,769 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down_and_stop [2022-11-19 08:18:32,769 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down_and_stop [2022-11-19 08:18:32,769 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-19 08:18:32,769 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-19 08:18:32,770 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-11-19 08:18:32,774 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-11-19 08:18:32,774 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-19 08:18:32,774 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-19 08:18:32,774 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_unmap_and_free_tx_resource [2022-11-19 08:18:32,774 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_unmap_and_free_tx_resource [2022-11-19 08:18:32,775 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_6 [2022-11-19 08:18:32,775 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_6 [2022-11-19 08:18:32,775 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-19 08:18:32,775 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-19 08:18:32,776 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_get_info [2022-11-19 08:18:32,776 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_get_info [2022-11-19 08:18:32,776 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-19 08:18:32,777 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-19 08:18:32,777 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-19 08:18:32,777 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-19 08:18:32,778 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_do_read_eeprom [2022-11-19 08:18:32,778 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_do_read_eeprom [2022-11-19 08:18:32,778 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_rctl [2022-11-19 08:18:32,778 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_rctl [2022-11-19 08:18:32,778 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-19 08:18:32,778 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-19 08:18:32,779 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set [2022-11-19 08:18:32,779 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set [2022-11-19 08:18:32,779 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-19 08:18:32,780 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-19 08:18:32,780 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset [2022-11-19 08:18:32,780 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset [2022-11-19 08:18:32,780 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2022-11-19 08:18:32,780 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2022-11-19 08:18:32,780 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_eeprom_params [2022-11-19 08:18:32,781 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_eeprom_params [2022-11-19 08:18:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_fix_features [2022-11-19 08:18:32,781 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_fix_features [2022-11-19 08:18:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2022-11-19 08:18:32,782 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2022-11-19 08:18:32,782 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-19 08:18:32,782 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-19 08:18:32,782 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-19 08:18:32,782 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-19 08:18:32,783 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-19 08:18:32,783 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-19 08:18:32,783 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-19 08:18:32,783 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-19 08:18:32,783 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-19 08:18:32,783 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-19 08:18:32,784 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-19 08:18:32,784 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-19 08:18:32,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:18:32,785 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-19 08:18:32,785 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-19 08:18:32,785 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg [2022-11-19 08:18:32,786 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg [2022-11-19 08:18:32,786 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_speed_and_duplex [2022-11-19 08:18:32,786 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_speed_and_duplex [2022-11-19 08:18:32,787 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_standby_eeprom [2022-11-19 08:18:32,787 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_standby_eeprom [2022-11-19 08:18:32,787 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_bit [2022-11-19 08:18:32,788 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_bit [2022-11-19 08:18:32,788 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-19 08:18:32,788 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-19 08:18:32,788 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure_rx [2022-11-19 08:18:32,788 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure_rx [2022-11-19 08:18:32,788 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-19 08:18:32,788 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-19 08:18:32,789 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_hw_dev [2022-11-19 08:18:32,789 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_hw_dev [2022-11-19 08:18:32,789 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_stats [2022-11-19 08:18:32,789 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_stats [2022-11-19 08:18:32,790 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_validate_option [2022-11-19 08:18:32,790 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_validate_option [2022-11-19 08:18:32,790 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 08:18:32,790 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 08:18:32,791 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-19 08:18:32,791 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-19 08:18:32,794 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link [2022-11-19 08:18:32,794 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link [2022-11-19 08:18:32,794 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_irq [2022-11-19 08:18:32,794 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_irq [2022-11-19 08:18:32,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 08:18:32,796 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-19 08:18:32,798 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-19 08:18:32,798 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_link [2022-11-19 08:18:32,798 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_link [2022-11-19 08:18:32,803 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_vlan_mode [2022-11-19 08:18:32,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_vlan_mode [2022-11-19 08:18:32,804 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset [2022-11-19 08:18:32,804 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset [2022-11-19 08:18:32,804 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 08:18:32,804 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 08:18:32,804 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_dsp_after_link_change [2022-11-19 08:18:32,804 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_dsp_after_link_change [2022-11-19 08:18:32,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 08:18:32,805 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_maybe_stop_tx [2022-11-19 08:18:32,805 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_maybe_stop_tx [2022-11-19 08:18:32,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:18:32,805 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-19 08:18:32,805 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-19 08:18:32,805 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-11-19 08:18:32,806 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-11-19 08:18:32,806 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shutdown [2022-11-19 08:18:32,806 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shutdown [2022-11-19 08:18:32,806 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2022-11-19 08:18:32,806 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2022-11-19 08:18:32,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_10 [2022-11-19 08:18:32,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_10 [2022-11-19 08:18:32,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 08:18:32,807 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 08:18:32,807 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_used [2022-11-19 08:18:32,807 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_used [2022-11-19 08:18:32,807 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_disable_receiver [2022-11-19 08:18:32,807 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_disable_receiver [2022-11-19 08:18:32,807 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_kill_vid [2022-11-19 08:18:32,808 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_kill_vid [2022-11-19 08:18:32,808 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_force_mac_fc [2022-11-19 08:18:32,808 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_force_mac_fc [2022-11-19 08:18:32,808 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-19 08:18:32,808 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-19 08:18:32,808 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2022-11-19 08:18:32,808 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2022-11-19 08:18:32,809 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_leave_82542_rst [2022-11-19 08:18:32,809 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_leave_82542_rst [2022-11-19 08:18:32,809 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_has_link [2022-11-19 08:18:32,809 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_has_link [2022-11-19 08:18:32,809 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-19 08:18:32,809 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-19 08:18:32,809 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-19 08:18:32,810 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-19 08:18:32,810 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2022-11-19 08:18:32,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2022-11-19 08:18:32,810 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_tx_resources [2022-11-19 08:18:32,810 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_tx_resources [2022-11-19 08:18:32,810 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_stats [2022-11-19 08:18:32,810 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_stats [2022-11-19 08:18:32,811 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-19 08:18:32,811 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-19 08:18:32,811 INFO L130 BoogieDeclarations]: Found specification of procedure pci_wake_from_d3 [2022-11-19 08:18:32,811 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_wake_from_d3 [2022-11-19 08:18:32,811 INFO L130 BoogieDeclarations]: Found specification of procedure reg_set_and_check [2022-11-19 08:18:32,811 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_set_and_check [2022-11-19 08:18:32,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-19 08:18:32,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-19 08:18:32,812 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_frag_len [2022-11-19 08:18:32,812 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_frag_len [2022-11-19 08:18:32,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:18:32,812 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_netpoll [2022-11-19 08:18:32,812 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_netpoll [2022-11-19 08:18:32,812 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-19 08:18:32,813 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-19 08:18:32,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:18:32,813 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-19 08:18:32,813 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-19 08:18:32,813 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 08:18:32,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 08:18:32,813 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_rx_mode [2022-11-19 08:18:32,814 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_rx_mode [2022-11-19 08:18:32,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:18:32,814 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 08:18:32,814 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-19 08:18:32,814 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-19 08:18:32,814 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_change_mtu [2022-11-19 08:18:32,814 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_change_mtu [2022-11-19 08:18:32,815 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_open [2022-11-19 08:18:32,815 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_open [2022-11-19 08:18:32,815 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-19 08:18:32,815 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-19 08:18:32,815 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_hw_reset [2022-11-19 08:18:32,815 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_hw_reset [2022-11-19 08:18:32,815 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_vfta [2022-11-19 08:18:32,816 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_vfta [2022-11-19 08:18:32,816 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-19 08:18:32,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-19 08:18:32,816 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_remove [2022-11-19 08:18:32,816 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_remove [2022-11-19 08:18:32,816 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_ee_bits [2022-11-19 08:18:32,816 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_ee_bits [2022-11-19 08:18:32,817 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure [2022-11-19 08:18:32,817 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure [2022-11-19 08:18:32,817 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-19 08:18:32,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-19 08:18:32,817 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-19 08:18:32,817 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-19 08:18:32,817 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 08:18:32,818 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 08:18:32,818 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_cable_length [2022-11-19 08:18:32,818 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_cable_length [2022-11-19 08:18:32,818 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-19 08:18:32,818 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-19 08:18:32,818 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_ee_clk [2022-11-19 08:18:32,818 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_ee_clk [2022-11-19 08:18:32,819 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_rx_resources [2022-11-19 08:18:32,819 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_rx_resources [2022-11-19 08:18:32,819 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_add_vid [2022-11-19 08:18:32,819 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_add_vid [2022-11-19 08:18:32,819 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2022-11-19 08:18:32,819 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2022-11-19 08:18:32,819 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2022-11-19 08:18:32,820 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2022-11-19 08:18:32,820 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-19 08:18:32,820 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-19 08:18:32,820 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_write [2022-11-19 08:18:32,821 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_write [2022-11-19 08:18:32,825 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-19 08:18:32,825 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-19 08:18:32,825 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_resume [2022-11-19 08:18:32,825 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_resume [2022-11-19 08:18:32,825 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-19 08:18:32,825 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-19 08:18:32,826 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-19 08:18:32,826 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-19 08:18:32,826 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom [2022-11-19 08:18:32,827 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom [2022-11-19 08:18:32,828 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_enter_82542_rst [2022-11-19 08:18:32,828 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_enter_82542_rst [2022-11-19 08:18:32,828 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_acquire_eeprom [2022-11-19 08:18:32,828 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_acquire_eeprom [2022-11-19 08:18:32,828 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-19 08:18:32,828 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-19 08:18:32,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:18:32,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:18:32,829 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_down_phy [2022-11-19 08:18:32,829 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_down_phy [2022-11-19 08:18:32,829 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-19 08:18:32,829 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-19 08:18:32,829 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2022-11-19 08:18:32,830 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2022-11-19 08:18:32,830 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_spi_eeprom_ready [2022-11-19 08:18:32,830 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_spi_eeprom_ready [2022-11-19 08:18:32,830 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_clear_mwi [2022-11-19 08:18:32,830 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_clear_mwi [2022-11-19 08:18:32,830 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-19 08:18:32,830 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-19 08:18:32,830 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_up_phy [2022-11-19 08:18:32,831 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_up_phy [2022-11-19 08:18:32,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 08:18:32,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 08:18:32,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 08:18:32,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 08:18:32,831 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-19 08:18:32,831 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-19 08:18:32,832 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-19 08:18:32,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-19 08:18:32,832 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_phy_info_task [2022-11-19 08:18:32,832 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_phy_info_task [2022-11-19 08:18:32,832 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_sync_single_for_cpu [2022-11-19 08:18:32,832 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_sync_single_for_cpu [2022-11-19 08:18:32,832 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-19 08:18:32,832 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-19 08:18:32,833 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg_ex [2022-11-19 08:18:32,833 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg_ex [2022-11-19 08:18:32,833 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-19 08:18:32,833 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-19 08:18:32,833 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-19 08:18:32,833 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-19 08:18:32,833 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-19 08:18:32,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-19 08:18:32,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-19 08:18:32,834 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-11-19 08:18:32,834 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-11-19 08:18:32,834 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_alloc_frag [2022-11-19 08:18:32,834 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_alloc_frag [2022-11-19 08:18:32,834 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-19 08:18:32,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-19 08:18:32,835 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-19 08:18:32,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-19 08:18:32,835 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_polarity [2022-11-19 08:18:32,835 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_polarity [2022-11-19 08:18:32,835 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-19 08:18:32,835 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-19 08:18:32,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 08:18:32,836 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 08:18:32,836 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2022-11-19 08:18:32,836 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2022-11-19 08:18:32,836 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-19 08:18:32,836 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-19 08:18:32,836 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_mdi_clk [2022-11-19 08:18:32,836 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_mdi_clk [2022-11-19 08:18:32,836 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 08:18:32,837 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 08:18:32,837 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_mac_to_phy [2022-11-19 08:18:32,837 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_mac_to_phy [2022-11-19 08:18:32,837 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom_len [2022-11-19 08:18:32,837 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom_len [2022-11-19 08:18:32,837 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-19 08:18:32,837 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-19 08:18:32,838 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_rx_resources [2022-11-19 08:18:32,838 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_rx_resources [2022-11-19 08:18:32,838 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-19 08:18:32,838 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-19 08:18:32,838 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_close [2022-11-19 08:18:32,838 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_close [2022-11-19 08:18:32,838 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset_clk_and_crs [2022-11-19 08:18:32,838 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset_clk_and_crs [2022-11-19 08:18:32,839 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-19 08:18:32,839 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-19 08:18:32,839 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-19 08:18:32,839 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-19 08:18:32,839 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-19 08:18:32,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-19 08:18:32,839 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-19 08:18:32,840 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-19 08:18:32,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:18:32,840 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 08:18:32,840 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 08:18:32,840 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-19 08:18:32,840 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-19 08:18:32,840 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-19 08:18:32,841 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-19 08:18:32,841 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_regs_len [2022-11-19 08:18:32,841 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_regs_len [2022-11-19 08:18:32,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:18:32,841 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-19 08:18:32,841 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-19 08:18:32,841 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_task [2022-11-19 08:18:32,841 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_task [2022-11-19 08:18:32,842 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_features [2022-11-19 08:18:32,842 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_features [2022-11-19 08:18:32,842 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2022-11-19 08:18:32,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2022-11-19 08:18:32,842 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-19 08:18:32,842 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-19 08:18:32,842 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_tx_resources [2022-11-19 08:18:32,843 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_tx_resources [2022-11-19 08:18:32,843 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_setup_autoneg [2022-11-19 08:18:32,843 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_setup_autoneg [2022-11-19 08:18:32,843 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_mng_vlan [2022-11-19 08:18:32,843 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_mng_vlan [2022-11-19 08:18:32,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 08:18:32,843 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_6 [2022-11-19 08:18:32,844 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_6 [2022-11-19 08:18:32,844 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_watchdog [2022-11-19 08:18:32,844 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_watchdog [2022-11-19 08:18:32,844 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_media_type [2022-11-19 08:18:32,844 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_media_type [2022-11-19 08:18:32,844 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_eeprom [2022-11-19 08:18:32,844 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_eeprom [2022-11-19 08:18:32,844 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_filter_on_off [2022-11-19 08:18:32,845 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_filter_on_off [2022-11-19 08:18:32,845 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-19 08:18:32,846 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-19 08:18:32,846 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-19 08:18:32,858 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-19 08:18:32,858 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_nway_reset [2022-11-19 08:18:32,858 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_nway_reset [2022-11-19 08:18:32,858 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-19 08:18:32,858 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-19 08:18:32,858 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_phy_loopback [2022-11-19 08:18:32,859 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_phy_loopback [2022-11-19 08:18:32,859 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-19 08:18:32,859 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-19 08:18:32,859 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-19 08:18:32,859 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-19 08:18:32,859 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_all_rx_rings [2022-11-19 08:18:32,859 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_all_rx_rings [2022-11-19 08:18:32,860 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_enable [2022-11-19 08:18:32,860 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_enable [2022-11-19 08:18:32,860 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_up [2022-11-19 08:18:32,860 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_up [2022-11-19 08:18:32,860 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_tx_timeout [2022-11-19 08:18:32,860 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_tx_timeout [2022-11-19 08:18:32,860 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reinit_locked [2022-11-19 08:18:32,860 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reinit_locked [2022-11-19 08:18:32,861 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_bit [2022-11-19 08:18:32,861 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_bit [2022-11-19 08:18:32,861 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_phy_reg [2022-11-19 08:18:32,861 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_phy_reg [2022-11-19 08:18:32,861 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_rx_resources [2022-11-19 08:18:32,861 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_rx_resources [2022-11-19 08:18:32,861 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_mdi_clk [2022-11-19 08:18:32,862 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_mdi_clk [2022-11-19 08:18:32,862 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-19 08:18:32,862 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-19 08:18:32,862 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 08:18:32,862 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 08:18:32,862 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_copper_link_rtl_setup [2022-11-19 08:18:32,862 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_copper_link_rtl_setup [2022-11-19 08:18:32,863 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-11-19 08:18:32,863 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-11-19 08:18:32,863 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_eeprom [2022-11-19 08:18:32,863 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_eeprom [2022-11-19 08:18:32,863 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_desc_rings [2022-11-19 08:18:32,863 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_desc_rings [2022-11-19 08:18:32,863 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_set_mwi [2022-11-19 08:18:32,863 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_set_mwi [2022-11-19 08:18:32,864 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-19 08:18:32,864 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-19 08:18:32,864 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-19 08:18:32,864 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-19 08:18:32,864 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_polarity_reversal_workaround [2022-11-19 08:18:32,864 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_polarity_reversal_workaround [2022-11-19 08:18:32,864 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-19 08:18:32,864 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-19 08:18:32,865 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-19 08:18:32,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-19 08:18:32,865 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 08:18:32,865 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 08:18:32,865 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_link_test [2022-11-19 08:18:32,865 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_link_test [2022-11-19 08:18:32,865 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_mdi_bits [2022-11-19 08:18:32,866 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_mdi_bits [2022-11-19 08:18:32,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:18:32,866 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_82547_tx_fifo_stall_task [2022-11-19 08:18:32,866 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_82547_tx_fifo_stall_task [2022-11-19 08:18:32,866 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs___0 [2022-11-19 08:18:32,866 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs___0 [2022-11-19 08:18:32,866 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_2 [2022-11-19 08:18:32,866 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_2 [2022-11-19 08:18:32,867 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_64k_bound [2022-11-19 08:18:32,867 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_64k_bound [2022-11-19 08:18:32,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 08:18:32,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 08:18:32,867 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_spd_dplx [2022-11-19 08:18:32,867 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_spd_dplx [2022-11-19 08:18:32,867 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2022-11-19 08:18:32,868 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2022-11-19 08:18:32,868 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down [2022-11-19 08:18:32,868 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down [2022-11-19 08:18:32,868 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-19 08:18:32,868 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-19 08:18:32,868 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_init_script [2022-11-19 08:18:32,868 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_init_script [2022-11-19 08:18:32,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-19 08:18:32,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-19 08:18:32,869 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-19 08:18:32,869 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-19 08:18:32,869 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-19 08:18:32,869 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-19 08:18:32,869 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2022-11-19 08:18:32,869 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2022-11-19 08:18:32,870 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_request_irq [2022-11-19 08:18:32,870 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_request_irq [2022-11-19 08:18:32,870 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_error_detected [2022-11-19 08:18:32,870 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_error_detected [2022-11-19 08:18:32,870 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-19 08:18:32,870 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-19 08:18:32,870 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_eeprom [2022-11-19 08:18:32,870 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_eeprom [2022-11-19 08:18:32,871 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw [2022-11-19 08:18:32,871 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw [2022-11-19 08:18:32,871 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_disable [2022-11-19 08:18:32,871 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_disable [2022-11-19 08:18:32,871 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-11-19 08:18:32,871 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-11-19 08:18:32,871 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-19 08:18:32,872 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-19 08:18:32,872 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs___0 [2022-11-19 08:18:32,872 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs___0 [2022-11-19 08:18:32,872 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2022-11-19 08:18:32,872 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2022-11-19 08:18:32,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_9 [2022-11-19 08:18:32,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_9 [2022-11-19 08:18:32,872 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_tx_ring [2022-11-19 08:18:32,873 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_tx_ring [2022-11-19 08:18:32,873 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_shutdown [2022-11-19 08:18:32,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_shutdown [2022-11-19 08:18:32,873 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_tx_resources [2022-11-19 08:18:32,873 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_tx_resources [2022-11-19 08:18:32,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_19 [2022-11-19 08:18:32,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_19 [2022-11-19 08:18:32,874 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-19 08:18:32,874 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-19 08:18:32,874 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-19 08:18:32,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-19 08:18:32,891 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-19 08:18:32,891 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-19 08:18:32,891 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_manageability [2022-11-19 08:18:32,891 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_manageability [2022-11-19 08:18:32,891 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-11-19 08:18:32,891 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-11-19 08:18:32,891 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-19 08:18:32,892 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-19 08:18:32,892 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_wol_exclusion [2022-11-19 08:18:32,892 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_wol_exclusion [2022-11-19 08:18:32,892 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-19 08:18:32,892 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-19 08:18:32,892 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-19 08:18:32,892 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-19 08:18:32,892 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_ioctl [2022-11-19 08:18:32,893 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_ioctl [2022-11-19 08:18:32,893 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-19 08:18:32,893 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-19 08:18:32,893 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_mac [2022-11-19 08:18:32,893 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_mac [2022-11-19 08:18:32,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:18:32,893 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-11-19 08:18:32,894 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-11-19 08:18:32,894 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_rx_ring [2022-11-19 08:18:32,894 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_rx_ring [2022-11-19 08:18:32,894 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-19 08:18:32,894 INFO L130 BoogieDeclarations]: Found specification of procedure skb_free_frag [2022-11-19 08:18:32,894 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_free_frag [2022-11-19 08:18:35,188 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:18:35,197 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:18:36,563 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 08:19:36,979 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:19:51,350 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:19:51,350 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-19 08:19:51,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:19:51 BoogieIcfgContainer [2022-11-19 08:19:51,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:19:51,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:19:51,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:19:51,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:19:51,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:18:18" (1/3) ... [2022-11-19 08:19:51,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53b8b430 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:19:51, skipping insertion in model container [2022-11-19 08:19:51,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:29" (2/3) ... [2022-11-19 08:19:51,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53b8b430 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:19:51, skipping insertion in model container [2022-11-19 08:19:51,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:19:51" (3/3) ... [2022-11-19 08:19:51,372 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 [2022-11-19 08:19:51,398 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:19:51,398 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:19:51,573 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:19:51,790 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;@6c738078, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:19:51,790 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:19:51,812 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) [2022-11-19 08:19:51,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-19 08:19:51,847 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:19:51,849 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] [2022-11-19 08:19:51,849 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:19:51,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:19:51,858 INFO L85 PathProgramCache]: Analyzing trace with hash 29148303, now seen corresponding path program 1 times [2022-11-19 08:19:51,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:19:51,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419030777] [2022-11-19 08:19:51,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:19:51,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:19:53,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:19:54,758 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2022-11-19 08:19:54,759 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:19:54,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419030777] [2022-11-19 08:19:54,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419030777] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:19:54,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:19:54,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:19:54,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848833176] [2022-11-19 08:19:54,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:19:54,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:19:54,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:19:54,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:19:54,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:19:54,828 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) [2022-11-19 08:19:57,083 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 [] [2022-11-19 08:20:00,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:20:04,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:20:06,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:20:12,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:20:17,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:20:21,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:20:21,548 INFO L93 Difference]: Finished difference Result 19082 states and 28715 transitions. [2022-11-19 08:20:21,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:20:21,550 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 [2022-11-19 08:20:21,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:20:21,715 INFO L225 Difference]: With dead ends: 19082 [2022-11-19 08:20:21,715 INFO L226 Difference]: Without dead ends: 12612 [2022-11-19 08:20:21,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:20:21,790 INFO L413 NwaCegarLoop]: 10945 mSDtfsCounter, 9297 mSDsluCounter, 8843 mSDsCounter, 0 mSdLazyCounter, 1611 mSolverCounterSat, 3 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9299 SdHoareTripleChecker+Valid, 19788 SdHoareTripleChecker+Invalid, 1619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1611 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:20:21,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9299 Valid, 19788 Invalid, 1619 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1611 Invalid, 5 Unknown, 0 Unchecked, 25.7s Time] [2022-11-19 08:20:21,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12612 states. [2022-11-19 08:20:23,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12612 to 12574. [2022-11-19 08:20:23,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12574 states, 7977 states have (on average 1.3325811708662405) internal successors, (10630), 8148 states have internal predecessors, (10630), 4097 states have call successors, (4097), 500 states have call predecessors, (4097), 499 states have return successors, (4096), 4079 states have call predecessors, (4096), 4094 states have call successors, (4096) [2022-11-19 08:20:23,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12574 states to 12574 states and 18823 transitions. [2022-11-19 08:20:23,356 INFO L78 Accepts]: Start accepts. Automaton has 12574 states and 18823 transitions. Word has length 156 [2022-11-19 08:20:23,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:20:23,357 INFO L495 AbstractCegarLoop]: Abstraction has 12574 states and 18823 transitions. [2022-11-19 08:20:23,357 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) [2022-11-19 08:20:23,357 INFO L276 IsEmpty]: Start isEmpty. Operand 12574 states and 18823 transitions. [2022-11-19 08:20:23,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-11-19 08:20:23,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:20:23,378 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] [2022-11-19 08:20:23,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:20:23,379 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:20:23,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:20:23,380 INFO L85 PathProgramCache]: Analyzing trace with hash -204658253, now seen corresponding path program 1 times [2022-11-19 08:20:23,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:20:23,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089338126] [2022-11-19 08:20:23,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:20:23,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:20:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:20:24,814 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2022-11-19 08:20:24,815 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:20:24,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089338126] [2022-11-19 08:20:24,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089338126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:20:24,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:20:24,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:20:24,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362179498] [2022-11-19 08:20:24,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:20:24,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:20:24,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:20:24,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:20:24,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:20:24,820 INFO L87 Difference]: Start difference. First operand 12574 states and 18823 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) [2022-11-19 08:20:27,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:20:29,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:20:32,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:20:36,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:20:40,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:20:41,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:20:41,040 INFO L93 Difference]: Finished difference Result 13255 states and 19778 transitions. [2022-11-19 08:20:41,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:20:41,041 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 [2022-11-19 08:20:41,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:20:41,166 INFO L225 Difference]: With dead ends: 13255 [2022-11-19 08:20:41,166 INFO L226 Difference]: Without dead ends: 13252 [2022-11-19 08:20:41,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:20:41,185 INFO L413 NwaCegarLoop]: 9057 mSDtfsCounter, 9515 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9520 SdHoareTripleChecker+Valid, 9641 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:20:41,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9520 Valid, 9641 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 878 Invalid, 3 Unknown, 0 Unchecked, 15.7s Time] [2022-11-19 08:20:41,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13252 states. [2022-11-19 08:20:42,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13252 to 13250. [2022-11-19 08:20:42,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13250 states, 8373 states have (on average 1.327003463513675) internal successors, (11111), 8547 states have internal predecessors, (11111), 4330 states have call successors, (4330), 548 states have call predecessors, (4330), 546 states have return successors, (4332), 4311 states have call predecessors, (4332), 4328 states have call successors, (4332) [2022-11-19 08:20:42,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13250 states to 13250 states and 19773 transitions. [2022-11-19 08:20:42,555 INFO L78 Accepts]: Start accepts. Automaton has 13250 states and 19773 transitions. Word has length 170 [2022-11-19 08:20:42,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:20:42,558 INFO L495 AbstractCegarLoop]: Abstraction has 13250 states and 19773 transitions. [2022-11-19 08:20:42,559 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) [2022-11-19 08:20:42,559 INFO L276 IsEmpty]: Start isEmpty. Operand 13250 states and 19773 transitions. [2022-11-19 08:20:42,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-11-19 08:20:42,564 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:20:42,564 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] [2022-11-19 08:20:42,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:20:42,565 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:20:42,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:20:42,574 INFO L85 PathProgramCache]: Analyzing trace with hash -2052773641, now seen corresponding path program 1 times [2022-11-19 08:20:42,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:20:42,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239192908] [2022-11-19 08:20:42,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:20:42,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:20:43,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:20:44,021 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2022-11-19 08:20:44,021 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:20:44,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239192908] [2022-11-19 08:20:44,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239192908] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:20:44,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:20:44,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:20:44,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026407820] [2022-11-19 08:20:44,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:20:44,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:20:44,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:20:44,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:20:44,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:20:44,024 INFO L87 Difference]: Start difference. First operand 13250 states and 19773 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) [2022-11-19 08:20:46,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:20:50,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:20:54,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:20:58,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:21:00,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:21:06,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:21:08,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:21:08,154 INFO L93 Difference]: Finished difference Result 26130 states and 38985 transitions. [2022-11-19 08:21:08,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:21:08,155 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 [2022-11-19 08:21:08,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:21:08,336 INFO L225 Difference]: With dead ends: 26130 [2022-11-19 08:21:08,336 INFO L226 Difference]: Without dead ends: 26127 [2022-11-19 08:21:08,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:21:08,357 INFO L413 NwaCegarLoop]: 10836 mSDtfsCounter, 9297 mSDsluCounter, 8757 mSDsCounter, 0 mSdLazyCounter, 1600 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9299 SdHoareTripleChecker+Valid, 19593 SdHoareTripleChecker+Invalid, 1604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1600 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:21:08,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9299 Valid, 19593 Invalid, 1604 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1600 Invalid, 3 Unknown, 0 Unchecked, 23.2s Time] [2022-11-19 08:21:08,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26127 states. [2022-11-19 08:21:10,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26127 to 26088. [2022-11-19 08:21:10,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26088 states, 16472 states have (on average 1.3266755706653715) internal successors, (21853), 16819 states have internal predecessors, (21853), 8537 states have call successors, (8537), 1082 states have call predecessors, (8537), 1078 states have return successors, (8543), 8499 states have call predecessors, (8543), 8535 states have call successors, (8543) [2022-11-19 08:21:10,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26088 states to 26088 states and 38933 transitions. [2022-11-19 08:21:10,824 INFO L78 Accepts]: Start accepts. Automaton has 26088 states and 38933 transitions. Word has length 171 [2022-11-19 08:21:10,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:21:10,825 INFO L495 AbstractCegarLoop]: Abstraction has 26088 states and 38933 transitions. [2022-11-19 08:21:10,826 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) [2022-11-19 08:21:10,826 INFO L276 IsEmpty]: Start isEmpty. Operand 26088 states and 38933 transitions. [2022-11-19 08:21:10,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-19 08:21:10,831 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:21:10,832 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] [2022-11-19 08:21:10,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:21:10,832 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:21:10,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:21:10,833 INFO L85 PathProgramCache]: Analyzing trace with hash 785196342, now seen corresponding path program 1 times [2022-11-19 08:21:10,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:21:10,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480601767] [2022-11-19 08:21:10,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:21:10,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:21:11,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:21:12,181 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2022-11-19 08:21:12,182 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:21:12,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480601767] [2022-11-19 08:21:12,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480601767] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:21:12,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:21:12,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:21:12,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550046474] [2022-11-19 08:21:12,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:21:12,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:21:12,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:21:12,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:21:12,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:21:12,184 INFO L87 Difference]: Start difference. First operand 26088 states and 38933 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) [2022-11-19 08:21:14,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:21:18,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:21:21,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:21:23,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:21:30,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:21:33,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:21:35,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:21:35,314 INFO L93 Difference]: Finished difference Result 38455 states and 57438 transitions. [2022-11-19 08:21:35,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:21:35,314 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 [2022-11-19 08:21:35,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:21:35,582 INFO L225 Difference]: With dead ends: 38455 [2022-11-19 08:21:35,582 INFO L226 Difference]: Without dead ends: 38448 [2022-11-19 08:21:35,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:21:35,617 INFO L413 NwaCegarLoop]: 10948 mSDtfsCounter, 9279 mSDsluCounter, 8760 mSDsCounter, 0 mSdLazyCounter, 1614 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9284 SdHoareTripleChecker+Valid, 19708 SdHoareTripleChecker+Invalid, 1619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1614 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:21:35,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9284 Valid, 19708 Invalid, 1619 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1614 Invalid, 5 Unknown, 0 Unchecked, 21.7s Time] [2022-11-19 08:21:35,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38448 states. [2022-11-19 08:21:38,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38448 to 38408. [2022-11-19 08:21:38,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38408 states, 24269 states have (on average 1.328155259796448) internal successors, (32233), 24788 states have internal predecessors, (32233), 12568 states have call successors, (12568), 1576 states have call predecessors, (12568), 1570 states have return successors, (12578), 12510 states have call predecessors, (12578), 12566 states have call successors, (12578) [2022-11-19 08:21:38,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38408 states to 38408 states and 57379 transitions. [2022-11-19 08:21:38,881 INFO L78 Accepts]: Start accepts. Automaton has 38408 states and 57379 transitions. Word has length 172 [2022-11-19 08:21:38,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:21:38,882 INFO L495 AbstractCegarLoop]: Abstraction has 38408 states and 57379 transitions. [2022-11-19 08:21:38,882 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) [2022-11-19 08:21:38,882 INFO L276 IsEmpty]: Start isEmpty. Operand 38408 states and 57379 transitions. [2022-11-19 08:21:38,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-11-19 08:21:38,953 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:21:38,954 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-19 08:21:38,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:21:38,954 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:21:38,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:21:38,955 INFO L85 PathProgramCache]: Analyzing trace with hash 916573222, now seen corresponding path program 1 times [2022-11-19 08:21:38,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:21:38,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52819486] [2022-11-19 08:21:38,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:21:38,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:21:39,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:21:40,434 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2022-11-19 08:21:40,434 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:21:40,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52819486] [2022-11-19 08:21:40,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52819486] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:21:40,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:21:40,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:21:40,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005847908] [2022-11-19 08:21:40,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:21:40,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:21:40,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:21:40,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:21:40,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:21:40,437 INFO L87 Difference]: Start difference. First operand 38408 states and 57379 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-19 08:21:42,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:21:44,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:21:47,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:21:50,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:21:56,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:22:02,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:22:04,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:22:04,893 INFO L93 Difference]: Finished difference Result 74584 states and 111309 transitions. [2022-11-19 08:22:04,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:22:04,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 320 [2022-11-19 08:22:04,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:22:05,288 INFO L225 Difference]: With dead ends: 74584 [2022-11-19 08:22:05,288 INFO L226 Difference]: Without dead ends: 36205 [2022-11-19 08:22:05,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:22:05,564 INFO L413 NwaCegarLoop]: 10605 mSDtfsCounter, 8314 mSDsluCounter, 8606 mSDsCounter, 0 mSdLazyCounter, 1709 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8316 SdHoareTripleChecker+Valid, 19211 SdHoareTripleChecker+Invalid, 1720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1709 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:22:05,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8316 Valid, 19211 Invalid, 1720 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1709 Invalid, 4 Unknown, 0 Unchecked, 22.3s Time] [2022-11-19 08:22:05,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36205 states. [2022-11-19 08:22:07,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36205 to 36132. [2022-11-19 08:22:08,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36132 states, 22805 states have (on average 1.3247533435650076) internal successors, (30211), 23265 states have internal predecessors, (30211), 11832 states have call successors, (11832), 1502 states have call predecessors, (11832), 1494 states have return successors, (11842), 11785 states have call predecessors, (11842), 11830 states have call successors, (11842) [2022-11-19 08:22:08,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36132 states to 36132 states and 53885 transitions. [2022-11-19 08:22:08,348 INFO L78 Accepts]: Start accepts. Automaton has 36132 states and 53885 transitions. Word has length 320 [2022-11-19 08:22:08,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:22:08,353 INFO L495 AbstractCegarLoop]: Abstraction has 36132 states and 53885 transitions. [2022-11-19 08:22:08,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-19 08:22:08,354 INFO L276 IsEmpty]: Start isEmpty. Operand 36132 states and 53885 transitions. [2022-11-19 08:22:08,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2022-11-19 08:22:08,525 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:08,525 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] [2022-11-19 08:22:08,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:22:08,526 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:22:08,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:08,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1374269233, now seen corresponding path program 1 times [2022-11-19 08:22:08,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:08,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817360576] [2022-11-19 08:22:08,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:08,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:09,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:09,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:09,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817360576] [2022-11-19 08:22:09,870 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-19 08:22:09,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024072030] [2022-11-19 08:22:09,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:09,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:22:09,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:22:09,877 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:22:09,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:22:16,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:16,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 19934 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:22:16,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:22:16,757 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2022-11-19 08:22:16,757 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:22:16,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024072030] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:22:16,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:22:16,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:22:16,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187739231] [2022-11-19 08:22:16,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:22:16,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:22:16,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:22:16,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:22:16,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:22:16,761 INFO L87 Difference]: Start difference. First operand 36132 states and 53885 transitions. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 2 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2022-11-19 08:22:19,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:22:23,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:22:25,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:22:29,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:22:32,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:22:40,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:22:41,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:22:41,477 INFO L93 Difference]: Finished difference Result 72235 states and 108040 transitions. [2022-11-19 08:22:41,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:22:41,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 2 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) Word has length 529 [2022-11-19 08:22:41,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:22:41,739 INFO L225 Difference]: With dead ends: 72235 [2022-11-19 08:22:41,739 INFO L226 Difference]: Without dead ends: 36132 [2022-11-19 08:22:41,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 527 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:22:41,953 INFO L413 NwaCegarLoop]: 8800 mSDtfsCounter, 43 mSDsluCounter, 8743 mSDsCounter, 0 mSdLazyCounter, 1589 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 17543 SdHoareTripleChecker+Invalid, 1595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1589 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:22:41,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 17543 Invalid, 1595 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1589 Invalid, 4 Unknown, 0 Unchecked, 22.6s Time] [2022-11-19 08:22:41,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36132 states. [2022-11-19 08:22:44,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36132 to 36132. [2022-11-19 08:22:44,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36132 states, 22805 states have (on average 1.3244902433676826) internal successors, (30205), 23265 states have internal predecessors, (30205), 11832 states have call successors, (11832), 1502 states have call predecessors, (11832), 1494 states have return successors, (11842), 11785 states have call predecessors, (11842), 11830 states have call successors, (11842) [2022-11-19 08:22:44,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36132 states to 36132 states and 53879 transitions. [2022-11-19 08:22:44,695 INFO L78 Accepts]: Start accepts. Automaton has 36132 states and 53879 transitions. Word has length 529 [2022-11-19 08:22:44,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:22:44,696 INFO L495 AbstractCegarLoop]: Abstraction has 36132 states and 53879 transitions. [2022-11-19 08:22:44,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 2 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2022-11-19 08:22:44,697 INFO L276 IsEmpty]: Start isEmpty. Operand 36132 states and 53879 transitions. [2022-11-19 08:22:44,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2022-11-19 08:22:44,804 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:44,805 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] [2022-11-19 08:22:44,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:22:45,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-19 08:22:45,019 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:22:45,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:45,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1433522836, now seen corresponding path program 1 times [2022-11-19 08:22:45,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:45,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916865255] [2022-11-19 08:22:45,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:45,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:45,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:46,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:46,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916865255] [2022-11-19 08:22:46,309 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-19 08:22:46,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796248683] [2022-11-19 08:22:46,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:46,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:22:46,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:22:46,311 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:22:46,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:22:52,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:52,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 20003 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:22:52,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:22:53,082 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2022-11-19 08:22:53,082 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:22:53,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796248683] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:22:53,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:22:53,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:22:53,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155896314] [2022-11-19 08:22:53,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:22:53,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:22:53,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:22:53,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:22:53,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:22:53,086 INFO L87 Difference]: Start difference. First operand 36132 states and 53879 transitions. Second operand has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 2 states have call successors, (83), 2 states have call predecessors, (83), 2 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2022-11-19 08:22:55,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:23:00,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:23:04,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:23:07,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:23:16,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:23:18,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:18,587 INFO L93 Difference]: Finished difference Result 103620 states and 154626 transitions. [2022-11-19 08:23:18,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:23:18,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 2 states have call successors, (83), 2 states have call predecessors, (83), 2 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) Word has length 534 [2022-11-19 08:23:18,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:19,020 INFO L225 Difference]: With dead ends: 103620 [2022-11-19 08:23:19,020 INFO L226 Difference]: Without dead ends: 67517 [2022-11-19 08:23:19,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 533 GetRequests, 532 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:23:19,312 INFO L413 NwaCegarLoop]: 12205 mSDtfsCounter, 8580 mSDsluCounter, 8762 mSDsCounter, 0 mSdLazyCounter, 1884 mSolverCounterSat, 17 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8584 SdHoareTripleChecker+Valid, 20967 SdHoareTripleChecker+Invalid, 1905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1884 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:19,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8584 Valid, 20967 Invalid, 1905 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 1884 Invalid, 4 Unknown, 0 Unchecked, 22.4s Time] [2022-11-19 08:23:19,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67517 states. [2022-11-19 08:23:23,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67517 to 67497. [2022-11-19 08:23:23,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67497 states, 42720 states have (on average 1.3247659176029962) internal successors, (56594), 43564 states have internal predecessors, (56594), 22032 states have call successors, (22032), 2758 states have call predecessors, (22032), 2744 states have return successors, (22054), 21955 states have call predecessors, (22054), 22030 states have call successors, (22054) [2022-11-19 08:23:23,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67497 states to 67497 states and 100680 transitions. [2022-11-19 08:23:23,650 INFO L78 Accepts]: Start accepts. Automaton has 67497 states and 100680 transitions. Word has length 534 [2022-11-19 08:23:23,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:23,651 INFO L495 AbstractCegarLoop]: Abstraction has 67497 states and 100680 transitions. [2022-11-19 08:23:23,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 2 states have call successors, (83), 2 states have call predecessors, (83), 2 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2022-11-19 08:23:23,651 INFO L276 IsEmpty]: Start isEmpty. Operand 67497 states and 100680 transitions. [2022-11-19 08:23:23,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 563 [2022-11-19 08:23:23,820 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:23,820 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] [2022-11-19 08:23:23,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-19 08:23:24,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:23:24,035 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:23:24,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:24,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1921990147, now seen corresponding path program 1 times [2022-11-19 08:23:24,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:24,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052569567] [2022-11-19 08:23:24,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:24,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:25,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:25,580 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:25,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052569567] [2022-11-19 08:23:25,580 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-19 08:23:25,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736649047] [2022-11-19 08:23:25,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:25,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:23:25,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:23:25,583 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:23:25,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:23:32,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:32,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 20177 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:23:32,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:23:34,691 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked. [2022-11-19 08:23:34,692 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:23:34,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736649047] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:34,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:23:34,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:23:34,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339173200] [2022-11-19 08:23:34,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:34,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:23:34,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:34,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:23:34,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:23:34,696 INFO L87 Difference]: Start difference. First operand 67497 states and 100680 transitions. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 3 states have call successors, (86), 3 states have call predecessors, (86), 2 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) [2022-11-19 08:23:36,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:23:40,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:23:44,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:23:47,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:23:58,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:23:59,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:59,888 INFO L93 Difference]: Finished difference Result 101203 states and 150963 transitions. [2022-11-19 08:23:59,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:23:59,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 3 states have call successors, (86), 3 states have call predecessors, (86), 2 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) Word has length 562 [2022-11-19 08:23:59,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:24:00,755 INFO L225 Difference]: With dead ends: 101203 [2022-11-19 08:24:00,755 INFO L226 Difference]: Without dead ends: 101195 [2022-11-19 08:24:00,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 561 GetRequests, 560 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:24:00,815 INFO L413 NwaCegarLoop]: 10866 mSDtfsCounter, 9125 mSDsluCounter, 8791 mSDsCounter, 0 mSdLazyCounter, 1607 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9127 SdHoareTripleChecker+Valid, 19657 SdHoareTripleChecker+Invalid, 1613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1607 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:24:00,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9127 Valid, 19657 Invalid, 1613 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1607 Invalid, 4 Unknown, 0 Unchecked, 21.5s Time] [2022-11-19 08:24:00,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101195 states. [2022-11-19 08:24:07,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101195 to 101193. [2022-11-19 08:24:07,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101193 states, 64062 states have (on average 1.3250444881521026) internal successors, (84885), 65326 states have internal predecessors, (84885), 33015 states have call successors, (33015), 4136 states have call predecessors, (33015), 4115 states have return successors, (33049), 32901 states have call predecessors, (33049), 33013 states have call successors, (33049) [2022-11-19 08:24:07,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101193 states to 101193 states and 150949 transitions. [2022-11-19 08:24:07,993 INFO L78 Accepts]: Start accepts. Automaton has 101193 states and 150949 transitions. Word has length 562 [2022-11-19 08:24:07,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:24:07,994 INFO L495 AbstractCegarLoop]: Abstraction has 101193 states and 150949 transitions. [2022-11-19 08:24:07,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 3 states have call successors, (86), 3 states have call predecessors, (86), 2 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) [2022-11-19 08:24:07,995 INFO L276 IsEmpty]: Start isEmpty. Operand 101193 states and 150949 transitions. [2022-11-19 08:24:08,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 577 [2022-11-19 08:24:08,610 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:24:08,611 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, 1] [2022-11-19 08:24:08,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 08:24:08,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:24:08,812 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:24:08,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:24:08,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1207195809, now seen corresponding path program 1 times [2022-11-19 08:24:08,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:24:08,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684089318] [2022-11-19 08:24:08,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:24:08,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:24:09,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:24:10,052 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:24:10,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684089318] [2022-11-19 08:24:10,053 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-19 08:24:10,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078934904] [2022-11-19 08:24:10,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:24:10,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:24:10,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:24:10,055 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:24:10,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b04edaf-5995-4b38-ba9d-901e08dd0db7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process