./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-08_1a-drivers--net--ethernet--intel--e1000--e1000.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--ethernet--intel--e1000--e1000.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ad536555636b28c8712c3c5d6c5a0e9b2263c8f80d84abafe69deecd86daf306 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 03:45:20,182 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:45:20,186 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:45:20,249 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:45:20,249 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:45:20,255 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:45:20,258 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:45:20,263 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:45:20,266 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:45:20,279 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:45:20,280 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:45:20,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:45:20,282 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:45:20,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:45:20,300 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:45:20,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:45:20,303 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:45:20,304 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:45:20,305 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:45:20,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:45:20,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:45:20,310 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:45:20,312 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:45:20,313 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:45:20,317 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:45:20,318 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:45:20,318 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:45:20,320 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:45:20,320 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:45:20,322 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:45:20,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:45:20,324 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:45:20,325 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:45:20,326 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:45:20,327 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:45:20,328 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:45:20,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:45:20,329 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:45:20,330 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:45:20,331 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:45:20,332 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:45:20,334 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:45:20,388 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:45:20,390 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:45:20,391 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:45:20,391 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:45:20,392 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:45:20,393 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:45:20,393 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:45:20,393 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:45:20,394 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:45:20,394 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:45:20,395 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:45:20,395 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:45:20,396 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:45:20,396 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:45:20,396 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:45:20,396 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:45:20,397 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:45:20,397 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:45:20,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:45:20,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:45:20,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:45:20,399 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:45:20,399 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:45:20,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:45:20,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:45:20,401 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:45:20,402 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:45:20,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:45:20,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:45:20,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:45:20,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:45:20,404 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:45:20,404 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:45:20,405 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:45:20,405 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:45:20,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:45:20,406 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:45:20,406 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:45:20,406 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_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad536555636b28c8712c3c5d6c5a0e9b2263c8f80d84abafe69deecd86daf306 [2022-11-03 03:45:20,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:45:20,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:45:20,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:45:20,799 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:45:20,800 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:45:20,802 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--ethernet--intel--e1000--e1000.ko-entry_point.cil.out.i [2022-11-03 03:45:20,883 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/data/19e912c3c/64a4d75661734e7ebe7437098ee2079d/FLAGe133000f3 [2022-11-03 03:45:22,636 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:45:22,637 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--ethernet--intel--e1000--e1000.ko-entry_point.cil.out.i [2022-11-03 03:45:22,780 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/data/19e912c3c/64a4d75661734e7ebe7437098ee2079d/FLAGe133000f3 [2022-11-03 03:45:22,826 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/data/19e912c3c/64a4d75661734e7ebe7437098ee2079d [2022-11-03 03:45:22,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:45:22,833 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:45:22,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:45:22,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:45:22,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:45:22,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:45:22" (1/1) ... [2022-11-03 03:45:22,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ea6fa6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:22, skipping insertion in model container [2022-11-03 03:45:22,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:45:22" (1/1) ... [2022-11-03 03:45:22,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:45:23,225 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:45:33,623 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--ethernet--intel--e1000--e1000.ko-entry_point.cil.out.i[826927,826940] [2022-11-03 03:45:33,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:45:34,000 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:45:35,307 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--ethernet--intel--e1000--e1000.ko-entry_point.cil.out.i[826927,826940] [2022-11-03 03:45:35,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:45:35,835 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:45:35,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:35 WrapperNode [2022-11-03 03:45:35,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:45:35,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:45:35,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:45:35,838 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:45:35,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:35" (1/1) ... [2022-11-03 03:45:36,208 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:35" (1/1) ... [2022-11-03 03:45:37,004 INFO L138 Inliner]: procedures = 680, calls = 14241, calls flagged for inlining = 319, calls inlined = 270, statements flattened = 26144 [2022-11-03 03:45:37,006 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:45:37,007 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:45:37,008 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:45:37,008 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:45:37,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:35" (1/1) ... [2022-11-03 03:45:37,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:35" (1/1) ... [2022-11-03 03:45:37,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:35" (1/1) ... [2022-11-03 03:45:37,387 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:35" (1/1) ... [2022-11-03 03:45:38,114 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:35" (1/1) ... [2022-11-03 03:45:38,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:35" (1/1) ... [2022-11-03 03:45:38,323 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:35" (1/1) ... [2022-11-03 03:45:38,537 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:35" (1/1) ... [2022-11-03 03:45:38,917 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:45:38,931 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:45:38,931 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:45:38,932 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:45:38,933 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:35" (1/1) ... [2022-11-03 03:45:38,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:45:38,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:45:38,999 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:45:39,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:45:39,084 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-03 03:45:39,084 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-03 03:45:39,084 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_fc_after_link_up [2022-11-03 03:45:39,084 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_fc_after_link_up [2022-11-03 03:45:39,084 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-03 03:45:39,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-03 03:45:39,085 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_collision_dist [2022-11-03 03:45:39,085 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_collision_dist [2022-11-03 03:45:39,085 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_ee_clk [2022-11-03 03:45:39,085 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_ee_clk [2022-11-03 03:45:39,086 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-11-03 03:45:39,086 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-11-03 03:45:39,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 03:45:39,086 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 03:45:39,086 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_slot_reset [2022-11-03 03:45:39,087 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_slot_reset [2022-11-03 03:45:39,087 INFO L130 BoogieDeclarations]: Found specification of procedure reg_pattern_test [2022-11-03 03:45:39,087 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_pattern_test [2022-11-03 03:45:39,087 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-03 03:45:39,087 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-03 03:45:39,087 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 03:45:39,088 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 03:45:39,088 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-03 03:45:39,088 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-03 03:45:39,088 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_eeprom [2022-11-03 03:45:39,088 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_eeprom [2022-11-03 03:45:39,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 03:45:39,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 03:45:39,089 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_manageability [2022-11-03 03:45:39,089 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_manageability [2022-11-03 03:45:39,089 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_in_ee_bits [2022-11-03 03:45:39,089 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_in_ee_bits [2022-11-03 03:45:39,090 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down_and_stop [2022-11-03 03:45:39,090 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down_and_stop [2022-11-03 03:45:39,090 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-03 03:45:39,090 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-03 03:45:39,090 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-11-03 03:45:39,091 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-11-03 03:45:39,091 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-03 03:45:39,091 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-03 03:45:39,091 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_unmap_and_free_tx_resource [2022-11-03 03:45:39,091 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_unmap_and_free_tx_resource [2022-11-03 03:45:39,092 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_6 [2022-11-03 03:45:39,092 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_6 [2022-11-03 03:45:39,092 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-03 03:45:39,092 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-03 03:45:39,092 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_get_info [2022-11-03 03:45:39,092 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_get_info [2022-11-03 03:45:39,093 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 03:45:39,093 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 03:45:39,093 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-03 03:45:39,093 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-03 03:45:39,093 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_do_read_eeprom [2022-11-03 03:45:39,093 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_do_read_eeprom [2022-11-03 03:45:39,094 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_rctl [2022-11-03 03:45:39,094 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_rctl [2022-11-03 03:45:39,110 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-03 03:45:39,110 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-03 03:45:39,111 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set [2022-11-03 03:45:39,111 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set [2022-11-03 03:45:39,111 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 03:45:39,111 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 03:45:39,111 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset [2022-11-03 03:45:39,111 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset [2022-11-03 03:45:39,112 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2022-11-03 03:45:39,112 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2022-11-03 03:45:39,112 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_eeprom_params [2022-11-03 03:45:39,112 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_eeprom_params [2022-11-03 03:45:39,112 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_fix_features [2022-11-03 03:45:39,112 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_fix_features [2022-11-03 03:45:39,113 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2022-11-03 03:45:39,113 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2022-11-03 03:45:39,113 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-03 03:45:39,113 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-03 03:45:39,113 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 03:45:39,113 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 03:45:39,114 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-03 03:45:39,127 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-03 03:45:39,127 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 03:45:39,128 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 03:45:39,128 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 03:45:39,128 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 03:45:39,129 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-03 03:45:39,129 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-03 03:45:39,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:45:39,130 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-03 03:45:39,130 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-03 03:45:39,130 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg [2022-11-03 03:45:39,131 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg [2022-11-03 03:45:39,132 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_speed_and_duplex [2022-11-03 03:45:39,132 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_speed_and_duplex [2022-11-03 03:45:39,133 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_standby_eeprom [2022-11-03 03:45:39,133 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_standby_eeprom [2022-11-03 03:45:39,133 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_bit [2022-11-03 03:45:39,134 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_bit [2022-11-03 03:45:39,134 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-03 03:45:39,134 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-03 03:45:39,134 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure_rx [2022-11-03 03:45:39,135 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure_rx [2022-11-03 03:45:39,135 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 03:45:39,135 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 03:45:39,135 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_hw_dev [2022-11-03 03:45:39,135 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_hw_dev [2022-11-03 03:45:39,136 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_stats [2022-11-03 03:45:39,136 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_stats [2022-11-03 03:45:39,137 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_validate_option [2022-11-03 03:45:39,137 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_validate_option [2022-11-03 03:45:39,137 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 03:45:39,137 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 03:45:39,138 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 03:45:39,139 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 03:45:39,142 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link [2022-11-03 03:45:39,143 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link [2022-11-03 03:45:39,144 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_irq [2022-11-03 03:45:39,151 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_irq [2022-11-03 03:45:39,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 03:45:39,154 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-03 03:45:39,155 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-03 03:45:39,155 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_link [2022-11-03 03:45:39,155 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_link [2022-11-03 03:45:39,157 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_vlan_mode [2022-11-03 03:45:39,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_vlan_mode [2022-11-03 03:45:39,157 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset [2022-11-03 03:45:39,157 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset [2022-11-03 03:45:39,158 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 03:45:39,158 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 03:45:39,158 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_dsp_after_link_change [2022-11-03 03:45:39,158 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_dsp_after_link_change [2022-11-03 03:45:39,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 03:45:39,159 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_maybe_stop_tx [2022-11-03 03:45:39,159 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_maybe_stop_tx [2022-11-03 03:45:39,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:45:39,160 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 03:45:39,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 03:45:39,160 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-11-03 03:45:39,160 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-11-03 03:45:39,161 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shutdown [2022-11-03 03:45:39,161 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shutdown [2022-11-03 03:45:39,161 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2022-11-03 03:45:39,161 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2022-11-03 03:45:39,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_10 [2022-11-03 03:45:39,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_10 [2022-11-03 03:45:39,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 03:45:39,162 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 03:45:39,162 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_used [2022-11-03 03:45:39,163 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_used [2022-11-03 03:45:39,163 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_disable_receiver [2022-11-03 03:45:39,163 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_disable_receiver [2022-11-03 03:45:39,163 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_kill_vid [2022-11-03 03:45:39,163 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_kill_vid [2022-11-03 03:45:39,164 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_force_mac_fc [2022-11-03 03:45:39,164 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_force_mac_fc [2022-11-03 03:45:39,164 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-03 03:45:39,164 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-03 03:45:39,164 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2022-11-03 03:45:39,178 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2022-11-03 03:45:39,178 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_leave_82542_rst [2022-11-03 03:45:39,179 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_leave_82542_rst [2022-11-03 03:45:39,179 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_has_link [2022-11-03 03:45:39,179 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_has_link [2022-11-03 03:45:39,179 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-03 03:45:39,180 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-03 03:45:39,180 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 03:45:39,180 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 03:45:39,180 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2022-11-03 03:45:39,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2022-11-03 03:45:39,181 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_tx_resources [2022-11-03 03:45:39,181 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_tx_resources [2022-11-03 03:45:39,181 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_stats [2022-11-03 03:45:39,181 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_stats [2022-11-03 03:45:39,181 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-03 03:45:39,182 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-03 03:45:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure pci_wake_from_d3 [2022-11-03 03:45:39,182 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_wake_from_d3 [2022-11-03 03:45:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure reg_set_and_check [2022-11-03 03:45:39,182 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_set_and_check [2022-11-03 03:45:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-03 03:45:39,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-03 03:45:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_frag_len [2022-11-03 03:45:39,183 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_frag_len [2022-11-03 03:45:39,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:45:39,184 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_netpoll [2022-11-03 03:45:39,184 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_netpoll [2022-11-03 03:45:39,184 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-03 03:45:39,184 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-03 03:45:39,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:45:39,185 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-03 03:45:39,185 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-03 03:45:39,185 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 03:45:39,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 03:45:39,186 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_rx_mode [2022-11-03 03:45:39,186 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_rx_mode [2022-11-03 03:45:39,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 03:45:39,186 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 03:45:39,187 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-03 03:45:39,187 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-03 03:45:39,187 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_change_mtu [2022-11-03 03:45:39,187 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_change_mtu [2022-11-03 03:45:39,187 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_open [2022-11-03 03:45:39,188 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_open [2022-11-03 03:45:39,188 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-03 03:45:39,188 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-03 03:45:39,188 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_hw_reset [2022-11-03 03:45:39,188 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_hw_reset [2022-11-03 03:45:39,189 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_vfta [2022-11-03 03:45:39,189 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_vfta [2022-11-03 03:45:39,189 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-03 03:45:39,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-03 03:45:39,189 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_remove [2022-11-03 03:45:39,190 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_remove [2022-11-03 03:45:39,190 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_ee_bits [2022-11-03 03:45:39,190 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_ee_bits [2022-11-03 03:45:39,190 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure [2022-11-03 03:45:39,190 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure [2022-11-03 03:45:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-03 03:45:39,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-03 03:45:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-03 03:45:39,191 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-03 03:45:39,192 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 03:45:39,192 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 03:45:39,192 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_cable_length [2022-11-03 03:45:39,192 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_cable_length [2022-11-03 03:45:39,192 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-03 03:45:39,193 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-03 03:45:39,193 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_ee_clk [2022-11-03 03:45:39,193 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_ee_clk [2022-11-03 03:45:39,193 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_rx_resources [2022-11-03 03:45:39,193 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_rx_resources [2022-11-03 03:45:39,194 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_add_vid [2022-11-03 03:45:39,194 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_add_vid [2022-11-03 03:45:39,194 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2022-11-03 03:45:39,194 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2022-11-03 03:45:39,194 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2022-11-03 03:45:39,195 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2022-11-03 03:45:39,195 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-03 03:45:39,202 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-03 03:45:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_write [2022-11-03 03:45:39,203 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_write [2022-11-03 03:45:39,208 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-03 03:45:39,208 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-03 03:45:39,209 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_resume [2022-11-03 03:45:39,209 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_resume [2022-11-03 03:45:39,209 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-03 03:45:39,209 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-03 03:45:39,209 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 03:45:39,210 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 03:45:39,210 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom [2022-11-03 03:45:39,210 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom [2022-11-03 03:45:39,217 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_enter_82542_rst [2022-11-03 03:45:39,217 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_enter_82542_rst [2022-11-03 03:45:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_acquire_eeprom [2022-11-03 03:45:39,218 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_acquire_eeprom [2022-11-03 03:45:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-03 03:45:39,218 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-03 03:45:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:45:39,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:45:39,219 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_down_phy [2022-11-03 03:45:39,219 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_down_phy [2022-11-03 03:45:39,219 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-03 03:45:39,219 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-03 03:45:39,220 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2022-11-03 03:45:39,220 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2022-11-03 03:45:39,220 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_spi_eeprom_ready [2022-11-03 03:45:39,220 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_spi_eeprom_ready [2022-11-03 03:45:39,220 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_clear_mwi [2022-11-03 03:45:39,221 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_clear_mwi [2022-11-03 03:45:39,221 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-03 03:45:39,221 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-03 03:45:39,221 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_up_phy [2022-11-03 03:45:39,221 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_up_phy [2022-11-03 03:45:39,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 03:45:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 03:45:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 03:45:39,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 03:45:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-03 03:45:39,227 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-03 03:45:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-03 03:45:39,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-03 03:45:39,228 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_phy_info_task [2022-11-03 03:45:39,228 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_phy_info_task [2022-11-03 03:45:39,228 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_sync_single_for_cpu [2022-11-03 03:45:39,228 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_sync_single_for_cpu [2022-11-03 03:45:39,228 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-03 03:45:39,229 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-03 03:45:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg_ex [2022-11-03 03:45:39,229 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg_ex [2022-11-03 03:45:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-03 03:45:39,229 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-03 03:45:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-03 03:45:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-03 03:45:39,230 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-03 03:45:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 03:45:39,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 03:45:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-11-03 03:45:39,231 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-11-03 03:45:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_alloc_frag [2022-11-03 03:45:39,231 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_alloc_frag [2022-11-03 03:45:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-03 03:45:39,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-03 03:45:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-03 03:45:39,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-03 03:45:39,249 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_polarity [2022-11-03 03:45:39,249 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_polarity [2022-11-03 03:45:39,249 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-03 03:45:39,249 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-03 03:45:39,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 03:45:39,250 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 03:45:39,250 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2022-11-03 03:45:39,250 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2022-11-03 03:45:39,250 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-03 03:45:39,250 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-03 03:45:39,251 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_mdi_clk [2022-11-03 03:45:39,251 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_mdi_clk [2022-11-03 03:45:39,251 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 03:45:39,251 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 03:45:39,251 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_mac_to_phy [2022-11-03 03:45:39,252 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_mac_to_phy [2022-11-03 03:45:39,252 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom_len [2022-11-03 03:45:39,252 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom_len [2022-11-03 03:45:39,252 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 03:45:39,252 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 03:45:39,253 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_rx_resources [2022-11-03 03:45:39,253 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_rx_resources [2022-11-03 03:45:39,253 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-03 03:45:39,253 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-03 03:45:39,253 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_close [2022-11-03 03:45:39,254 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_close [2022-11-03 03:45:39,254 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset_clk_and_crs [2022-11-03 03:45:39,254 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset_clk_and_crs [2022-11-03 03:45:39,254 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-03 03:45:39,254 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-03 03:45:39,270 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 03:45:39,270 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 03:45:39,271 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-03 03:45:39,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-03 03:45:39,271 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-03 03:45:39,271 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-03 03:45:39,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:45:39,272 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 03:45:39,272 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 03:45:39,272 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-03 03:45:39,272 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-03 03:45:39,272 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 03:45:39,272 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 03:45:39,273 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_regs_len [2022-11-03 03:45:39,273 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_regs_len [2022-11-03 03:45:39,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 03:45:39,273 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-03 03:45:39,273 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-03 03:45:39,274 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_task [2022-11-03 03:45:39,274 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_task [2022-11-03 03:45:39,274 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_features [2022-11-03 03:45:39,274 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_features [2022-11-03 03:45:39,274 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2022-11-03 03:45:39,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2022-11-03 03:45:39,275 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-03 03:45:39,275 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-03 03:45:39,275 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_tx_resources [2022-11-03 03:45:39,275 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_tx_resources [2022-11-03 03:45:39,276 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_setup_autoneg [2022-11-03 03:45:39,276 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_setup_autoneg [2022-11-03 03:45:39,276 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_mng_vlan [2022-11-03 03:45:39,276 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_mng_vlan [2022-11-03 03:45:39,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 03:45:39,276 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_6 [2022-11-03 03:45:39,277 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_6 [2022-11-03 03:45:39,277 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_watchdog [2022-11-03 03:45:39,277 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_watchdog [2022-11-03 03:45:39,277 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_media_type [2022-11-03 03:45:39,277 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_media_type [2022-11-03 03:45:39,278 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_eeprom [2022-11-03 03:45:39,278 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_eeprom [2022-11-03 03:45:39,278 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_filter_on_off [2022-11-03 03:45:39,279 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_filter_on_off [2022-11-03 03:45:39,279 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-03 03:45:39,280 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-03 03:45:39,282 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-03 03:45:39,282 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-03 03:45:39,282 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_nway_reset [2022-11-03 03:45:39,282 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_nway_reset [2022-11-03 03:45:39,283 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-03 03:45:39,283 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-03 03:45:39,283 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_phy_loopback [2022-11-03 03:45:39,283 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_phy_loopback [2022-11-03 03:45:39,283 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 03:45:39,283 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 03:45:39,284 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-03 03:45:39,284 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-03 03:45:39,284 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_all_rx_rings [2022-11-03 03:45:39,284 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_all_rx_rings [2022-11-03 03:45:39,284 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_enable [2022-11-03 03:45:39,285 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_enable [2022-11-03 03:45:39,285 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_up [2022-11-03 03:45:39,285 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_up [2022-11-03 03:45:39,285 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_tx_timeout [2022-11-03 03:45:39,285 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_tx_timeout [2022-11-03 03:45:39,286 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reinit_locked [2022-11-03 03:45:39,286 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reinit_locked [2022-11-03 03:45:39,286 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_bit [2022-11-03 03:45:39,286 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_bit [2022-11-03 03:45:39,286 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_phy_reg [2022-11-03 03:45:39,287 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_phy_reg [2022-11-03 03:45:39,287 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_rx_resources [2022-11-03 03:45:39,287 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_rx_resources [2022-11-03 03:45:39,287 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_mdi_clk [2022-11-03 03:45:39,287 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_mdi_clk [2022-11-03 03:45:39,287 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-03 03:45:39,288 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-03 03:45:39,288 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 03:45:39,288 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 03:45:39,288 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_copper_link_rtl_setup [2022-11-03 03:45:39,288 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_copper_link_rtl_setup [2022-11-03 03:45:39,289 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-11-03 03:45:39,289 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-11-03 03:45:39,289 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_eeprom [2022-11-03 03:45:39,289 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_eeprom [2022-11-03 03:45:39,289 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_desc_rings [2022-11-03 03:45:39,289 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_desc_rings [2022-11-03 03:45:39,290 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_set_mwi [2022-11-03 03:45:39,290 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_set_mwi [2022-11-03 03:45:39,290 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-03 03:45:39,290 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-03 03:45:39,290 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 03:45:39,291 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 03:45:39,291 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_polarity_reversal_workaround [2022-11-03 03:45:39,291 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_polarity_reversal_workaround [2022-11-03 03:45:39,291 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-03 03:45:39,291 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-03 03:45:39,292 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-03 03:45:39,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-03 03:45:39,292 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 03:45:39,292 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 03:45:39,292 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_link_test [2022-11-03 03:45:39,292 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_link_test [2022-11-03 03:45:39,293 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_mdi_bits [2022-11-03 03:45:39,293 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_mdi_bits [2022-11-03 03:45:39,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:45:39,293 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_82547_tx_fifo_stall_task [2022-11-03 03:45:39,293 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_82547_tx_fifo_stall_task [2022-11-03 03:45:39,294 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs___0 [2022-11-03 03:45:39,294 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs___0 [2022-11-03 03:45:39,294 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_2 [2022-11-03 03:45:39,294 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_2 [2022-11-03 03:45:39,294 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_64k_bound [2022-11-03 03:45:39,295 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_64k_bound [2022-11-03 03:45:39,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 03:45:39,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 03:45:39,295 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_spd_dplx [2022-11-03 03:45:39,295 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_spd_dplx [2022-11-03 03:45:39,295 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2022-11-03 03:45:39,296 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2022-11-03 03:45:39,296 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down [2022-11-03 03:45:39,296 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down [2022-11-03 03:45:39,296 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 03:45:39,296 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 03:45:39,297 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_init_script [2022-11-03 03:45:39,297 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_init_script [2022-11-03 03:45:39,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-03 03:45:39,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-03 03:45:39,297 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-03 03:45:39,298 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-03 03:45:39,298 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-03 03:45:39,298 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-03 03:45:39,298 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2022-11-03 03:45:39,298 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2022-11-03 03:45:39,298 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_request_irq [2022-11-03 03:45:39,299 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_request_irq [2022-11-03 03:45:39,299 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_error_detected [2022-11-03 03:45:39,299 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_error_detected [2022-11-03 03:45:39,299 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-03 03:45:39,299 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-03 03:45:39,300 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_eeprom [2022-11-03 03:45:39,300 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_eeprom [2022-11-03 03:45:39,300 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw [2022-11-03 03:45:39,300 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw [2022-11-03 03:45:39,300 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_disable [2022-11-03 03:45:39,301 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_disable [2022-11-03 03:45:39,301 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-11-03 03:45:39,301 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-11-03 03:45:39,301 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-03 03:45:39,301 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-03 03:45:39,301 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs___0 [2022-11-03 03:45:39,306 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs___0 [2022-11-03 03:45:39,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_12 [2022-11-03 03:45:39,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_12 [2022-11-03 03:45:39,307 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2022-11-03 03:45:39,307 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2022-11-03 03:45:39,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_9 [2022-11-03 03:45:39,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_9 [2022-11-03 03:45:39,308 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_tx_ring [2022-11-03 03:45:39,308 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_tx_ring [2022-11-03 03:45:39,308 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_shutdown [2022-11-03 03:45:39,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_shutdown [2022-11-03 03:45:39,309 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_tx_resources [2022-11-03 03:45:39,309 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_tx_resources [2022-11-03 03:45:39,309 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-03 03:45:39,309 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-03 03:45:39,309 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-03 03:45:39,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-03 03:45:39,310 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-03 03:45:39,310 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-03 03:45:39,310 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_manageability [2022-11-03 03:45:39,310 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_manageability [2022-11-03 03:45:39,311 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-11-03 03:45:39,312 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-11-03 03:45:39,312 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-03 03:45:39,312 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-03 03:45:39,312 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_wol_exclusion [2022-11-03 03:45:39,312 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_wol_exclusion [2022-11-03 03:45:39,313 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 03:45:39,313 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 03:45:39,313 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-03 03:45:39,313 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-03 03:45:39,313 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_ioctl [2022-11-03 03:45:39,314 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_ioctl [2022-11-03 03:45:39,314 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-03 03:45:39,314 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-03 03:45:39,314 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_mac [2022-11-03 03:45:39,314 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_mac [2022-11-03 03:45:39,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:45:39,315 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-11-03 03:45:39,315 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-11-03 03:45:39,315 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_rx_ring [2022-11-03 03:45:39,315 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_rx_ring [2022-11-03 03:45:39,315 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-03 03:45:39,316 INFO L130 BoogieDeclarations]: Found specification of procedure skb_free_frag [2022-11-03 03:45:39,316 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_free_frag [2022-11-03 03:45:42,179 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:45:42,190 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:45:43,919 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 03:47:02,646 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:47:16,760 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:47:16,760 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-03 03:47:16,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:47:16 BoogieIcfgContainer [2022-11-03 03:47:16,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:47:16,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:47:16,774 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:47:16,780 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:47:16,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:45:22" (1/3) ... [2022-11-03 03:47:16,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@369d4f69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:47:16, skipping insertion in model container [2022-11-03 03:47:16,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:35" (2/3) ... [2022-11-03 03:47:16,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@369d4f69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:47:16, skipping insertion in model container [2022-11-03 03:47:16,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:47:16" (3/3) ... [2022-11-03 03:47:16,789 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--net--ethernet--intel--e1000--e1000.ko-entry_point.cil.out.i [2022-11-03 03:47:16,827 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:47:16,827 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:47:17,017 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:47:17,025 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;@24258cc4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:47:17,025 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:47:17,051 INFO L276 IsEmpty]: Start isEmpty. Operand has 6446 states, 4098 states have (on average 1.3387018057589068) internal successors, (5486), 4195 states have internal predecessors, (5486), 2095 states have call successors, (2095), 254 states have call predecessors, (2095), 253 states have return successors, (2085), 2079 states have call predecessors, (2085), 2085 states have call successors, (2085) [2022-11-03 03:47:17,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-03 03:47:17,076 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:47:17,078 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:47:17,079 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:47:17,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:47:17,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1947453057, now seen corresponding path program 1 times [2022-11-03 03:47:17,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:47:17,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847700836] [2022-11-03 03:47:17,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:47:17,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:47:18,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:47:20,031 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2022-11-03 03:47:20,031 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:47:20,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847700836] [2022-11-03 03:47:20,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847700836] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:47:20,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:47:20,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:47:20,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512424007] [2022-11-03 03:47:20,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:47:20,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:47:20,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:47:20,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:47:20,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:47:20,112 INFO L87 Difference]: Start difference. First operand has 6446 states, 4098 states have (on average 1.3387018057589068) internal successors, (5486), 4195 states have internal predecessors, (5486), 2095 states have call successors, (2095), 254 states have call predecessors, (2095), 253 states have return successors, (2085), 2079 states have call predecessors, (2085), 2085 states have call successors, (2085) Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-03 03:47:22,714 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 [] [2022-11-03 03:47:25,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:47:29,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:47:34,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:47:39,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:47:42,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:47:44,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:47:46,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:47:49,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:47:51,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:47:56,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:47:58,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:47:59,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:47:59,017 INFO L93 Difference]: Finished difference Result 18994 states and 28586 transitions. [2022-11-03 03:47:59,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:47:59,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 156 [2022-11-03 03:47:59,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:47:59,385 INFO L225 Difference]: With dead ends: 18994 [2022-11-03 03:47:59,385 INFO L226 Difference]: Without dead ends: 12530 [2022-11-03 03:47:59,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:47:59,459 INFO L413 NwaCegarLoop]: 10988 mSDtfsCounter, 9173 mSDsluCounter, 9629 mSDsCounter, 0 mSdLazyCounter, 1599 mSolverCounterSat, 3 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9182 SdHoareTripleChecker+Valid, 19831 SdHoareTripleChecker+Invalid, 1611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1599 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:47:59,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9182 Valid, 19831 Invalid, 1611 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1599 Invalid, 9 Unknown, 0 Unchecked, 37.6s Time] [2022-11-03 03:47:59,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12530 states. [2022-11-03 03:48:00,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12530 to 12491. [2022-11-03 03:48:00,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12491 states, 7924 states have (on average 1.3329126703685008) internal successors, (10562), 8093 states have internal predecessors, (10562), 4070 states have call successors, (4070), 498 states have call predecessors, (4070), 496 states have return successors, (4075), 4053 states have call predecessors, (4075), 4069 states have call successors, (4075) [2022-11-03 03:48:00,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12491 states to 12491 states and 18707 transitions. [2022-11-03 03:48:00,991 INFO L78 Accepts]: Start accepts. Automaton has 12491 states and 18707 transitions. Word has length 156 [2022-11-03 03:48:00,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:48:00,996 INFO L495 AbstractCegarLoop]: Abstraction has 12491 states and 18707 transitions. [2022-11-03 03:48:00,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-03 03:48:00,998 INFO L276 IsEmpty]: Start isEmpty. Operand 12491 states and 18707 transitions. [2022-11-03 03:48:01,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-11-03 03:48:01,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:48:01,024 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:48:01,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:48:01,025 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:48:01,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:48:01,026 INFO L85 PathProgramCache]: Analyzing trace with hash 206284612, now seen corresponding path program 1 times [2022-11-03 03:48:01,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:48:01,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780430668] [2022-11-03 03:48:01,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:01,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:48:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:02,884 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2022-11-03 03:48:02,885 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:48:02,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780430668] [2022-11-03 03:48:02,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780430668] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:48:02,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:48:02,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:48:02,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408194511] [2022-11-03 03:48:02,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:48:02,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:48:02,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:48:02,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:48:02,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:48:02,891 INFO L87 Difference]: Start difference. First operand 12491 states and 18707 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 03:48:05,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:48:10,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:48:14,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:48:17,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:48:19,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:48:24,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:48:25,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:48:27,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:48:34,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:48:38,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:48:40,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:48:40,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:48:40,932 INFO L93 Difference]: Finished difference Result 24783 states and 37111 transitions. [2022-11-03 03:48:40,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:48:40,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 170 [2022-11-03 03:48:40,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:48:41,178 INFO L225 Difference]: With dead ends: 24783 [2022-11-03 03:48:41,179 INFO L226 Difference]: Without dead ends: 24778 [2022-11-03 03:48:41,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:48:41,204 INFO L413 NwaCegarLoop]: 10957 mSDtfsCounter, 9276 mSDsluCounter, 9551 mSDsCounter, 0 mSdLazyCounter, 1588 mSolverCounterSat, 0 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9283 SdHoareTripleChecker+Valid, 19719 SdHoareTripleChecker+Invalid, 1596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1588 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:48:41,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9283 Valid, 19719 Invalid, 1596 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1588 Invalid, 8 Unknown, 0 Unchecked, 37.0s Time] [2022-11-03 03:48:41,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24778 states. [2022-11-03 03:48:43,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24778 to 24740. [2022-11-03 03:48:43,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24740 states, 15676 states have (on average 1.3322914008675684) internal successors, (20885), 16016 states have internal predecessors, (20885), 8077 states have call successors, (8077), 990 states have call predecessors, (8077), 986 states have return successors, (8094), 8041 states have call predecessors, (8094), 8076 states have call successors, (8094) [2022-11-03 03:48:43,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24740 states to 24740 states and 37056 transitions. [2022-11-03 03:48:43,482 INFO L78 Accepts]: Start accepts. Automaton has 24740 states and 37056 transitions. Word has length 170 [2022-11-03 03:48:43,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:48:43,484 INFO L495 AbstractCegarLoop]: Abstraction has 24740 states and 37056 transitions. [2022-11-03 03:48:43,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 03:48:43,484 INFO L276 IsEmpty]: Start isEmpty. Operand 24740 states and 37056 transitions. [2022-11-03 03:48:43,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2022-11-03 03:48:43,672 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:48:43,673 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:48:43,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:48:43,673 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:48:43,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:48:43,675 INFO L85 PathProgramCache]: Analyzing trace with hash -635196666, now seen corresponding path program 1 times [2022-11-03 03:48:43,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:48:43,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790941749] [2022-11-03 03:48:43,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:43,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:48:44,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:45,222 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:48:45,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790941749] [2022-11-03 03:48:45,224 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-03 03:48:45,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803695743] [2022-11-03 03:48:45,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:45,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:48:45,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:48:45,230 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:48:45,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 03:48:51,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:51,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 19868 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 03:48:51,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:48:51,802 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2022-11-03 03:48:51,802 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:48:51,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803695743] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:48:51,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:48:51,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:48:51,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461333071] [2022-11-03 03:48:51,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:48:51,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:48:51,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:48:51,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:48:51,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:48:51,806 INFO L87 Difference]: Start difference. First operand 24740 states and 37056 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 2 states have call successors, (82), 2 states have call predecessors, (82), 2 states have return successors, (81), 2 states have call predecessors, (81), 2 states have call successors, (81) [2022-11-03 03:48:54,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:48:57,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:49:02,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:06,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:08,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:11,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:12,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:17,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:19,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:21,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:25,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:25,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:49:25,814 INFO L93 Difference]: Finished difference Result 49451 states and 74326 transitions. [2022-11-03 03:49:25,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:49:25,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 2 states have call successors, (82), 2 states have call predecessors, (82), 2 states have return successors, (81), 2 states have call predecessors, (81), 2 states have call successors, (81) Word has length 532 [2022-11-03 03:49:25,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:49:26,001 INFO L225 Difference]: With dead ends: 49451 [2022-11-03 03:49:26,001 INFO L226 Difference]: Without dead ends: 24740 [2022-11-03 03:49:26,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 530 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:49:26,235 INFO L413 NwaCegarLoop]: 8802 mSDtfsCounter, 43 mSDsluCounter, 9523 mSDsCounter, 0 mSdLazyCounter, 1572 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 17544 SdHoareTripleChecker+Invalid, 1582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1572 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:49:26,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 17544 Invalid, 1582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1572 Invalid, 8 Unknown, 0 Unchecked, 33.0s Time] [2022-11-03 03:49:26,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24740 states. [2022-11-03 03:49:28,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24740 to 24740. [2022-11-03 03:49:28,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24740 states, 15676 states have (on average 1.332036233733095) internal successors, (20881), 16016 states have internal predecessors, (20881), 8077 states have call successors, (8077), 990 states have call predecessors, (8077), 986 states have return successors, (8094), 8041 states have call predecessors, (8094), 8076 states have call successors, (8094) [2022-11-03 03:49:28,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24740 states to 24740 states and 37052 transitions. [2022-11-03 03:49:28,538 INFO L78 Accepts]: Start accepts. Automaton has 24740 states and 37052 transitions. Word has length 532 [2022-11-03 03:49:28,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:49:28,540 INFO L495 AbstractCegarLoop]: Abstraction has 24740 states and 37052 transitions. [2022-11-03 03:49:28,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 2 states have call successors, (82), 2 states have call predecessors, (82), 2 states have return successors, (81), 2 states have call predecessors, (81), 2 states have call successors, (81) [2022-11-03 03:49:28,541 INFO L276 IsEmpty]: Start isEmpty. Operand 24740 states and 37052 transitions. [2022-11-03 03:49:28,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2022-11-03 03:49:28,691 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:49:28,691 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:49:28,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 03:49:28,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:49:28,919 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:49:28,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:49:28,920 INFO L85 PathProgramCache]: Analyzing trace with hash 51309302, now seen corresponding path program 1 times [2022-11-03 03:49:28,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:49:28,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289708080] [2022-11-03 03:49:28,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:49:28,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:49:30,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:49:30,458 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:49:30,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289708080] [2022-11-03 03:49:30,459 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-03 03:49:30,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768137863] [2022-11-03 03:49:30,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:49:30,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:49:30,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:49:30,463 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:49:30,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 03:49:36,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:49:37,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 19935 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 03:49:37,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:49:38,716 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2022-11-03 03:49:38,716 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:49:38,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768137863] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:49:38,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:49:38,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:49:38,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737749130] [2022-11-03 03:49:38,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:49:38,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:49:38,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:49:38,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:49:38,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:49:38,720 INFO L87 Difference]: Start difference. First operand 24740 states and 37052 transitions. Second operand has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 3 states have call successors, (84), 3 states have call predecessors, (84), 2 states have return successors, (83), 2 states have call predecessors, (83), 2 states have call successors, (83) [2022-11-03 03:49:40,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:43,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:49:47,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:51,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:54,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:56,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:50:03,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:50:05,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:50:11,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:50:12,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:50:12,104 INFO L93 Difference]: Finished difference Result 49388 states and 73978 transitions. [2022-11-03 03:50:12,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:50:12,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 3 states have call successors, (84), 3 states have call predecessors, (84), 2 states have return successors, (83), 2 states have call predecessors, (83), 2 states have call successors, (83) Word has length 537 [2022-11-03 03:50:12,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:50:12,483 INFO L225 Difference]: With dead ends: 49388 [2022-11-03 03:50:12,483 INFO L226 Difference]: Without dead ends: 49383 [2022-11-03 03:50:12,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 535 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:50:12,527 INFO L413 NwaCegarLoop]: 10869 mSDtfsCounter, 9127 mSDsluCounter, 9576 mSDsCounter, 0 mSdLazyCounter, 1586 mSolverCounterSat, 2 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9135 SdHoareTripleChecker+Valid, 19662 SdHoareTripleChecker+Invalid, 1597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1586 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:50:12,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9135 Valid, 19662 Invalid, 1597 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1586 Invalid, 9 Unknown, 0 Unchecked, 32.0s Time] [2022-11-03 03:50:12,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49383 states. [2022-11-03 03:50:15,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49383 to 49375. [2022-11-03 03:50:15,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49375 states, 31289 states have (on average 1.3324171434050305) internal successors, (41690), 31974 states have internal predecessors, (41690), 16113 states have call successors, (16113), 1979 states have call predecessors, (16113), 1972 states have return successors, (16162), 16037 states have call predecessors, (16162), 16112 states have call successors, (16162) [2022-11-03 03:50:16,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49375 states to 49375 states and 73965 transitions. [2022-11-03 03:50:16,865 INFO L78 Accepts]: Start accepts. Automaton has 49375 states and 73965 transitions. Word has length 537 [2022-11-03 03:50:16,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:50:16,869 INFO L495 AbstractCegarLoop]: Abstraction has 49375 states and 73965 transitions. [2022-11-03 03:50:16,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 3 states have call successors, (84), 3 states have call predecessors, (84), 2 states have return successors, (83), 2 states have call predecessors, (83), 2 states have call successors, (83) [2022-11-03 03:50:16,869 INFO L276 IsEmpty]: Start isEmpty. Operand 49375 states and 73965 transitions. [2022-11-03 03:50:17,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2022-11-03 03:50:17,109 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:50:17,110 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:50:17,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 03:50:17,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:50:17,323 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:50:17,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:50:17,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1085492942, now seen corresponding path program 1 times [2022-11-03 03:50:17,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:50:17,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553660594] [2022-11-03 03:50:17,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:50:17,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:50:18,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:50:18,820 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:50:18,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553660594] [2022-11-03 03:50:18,821 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-03 03:50:18,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212075848] [2022-11-03 03:50:18,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:50:18,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:50:18,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:50:18,823 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:50:18,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 03:50:25,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:50:25,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 20084 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 03:50:25,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:50:26,018 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2022-11-03 03:50:26,018 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:50:26,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212075848] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:50:26,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:50:26,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:50:26,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451899244] [2022-11-03 03:50:26,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:50:26,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:50:26,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:50:26,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:50:26,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:50:26,023 INFO L87 Difference]: Start difference. First operand 49375 states and 73965 transitions. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 2 states have call successors, (86), 2 states have call predecessors, (86), 2 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) [2022-11-03 03:50:28,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:50:31,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:50:36,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:50:37,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:50:41,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:50:44,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:50:46,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:50:50,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:50:51,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:50:58,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:51:00,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:51:05,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:51:07,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:51:08,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:51:08,732 INFO L93 Difference]: Finished difference Result 144144 states and 215894 transitions. [2022-11-03 03:51:08,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:51:08,733 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), 2 states have call successors, (86), 2 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 547 [2022-11-03 03:51:08,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:51:09,637 INFO L225 Difference]: With dead ends: 144144 [2022-11-03 03:51:09,638 INFO L226 Difference]: Without dead ends: 94798 [2022-11-03 03:51:09,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 546 GetRequests, 545 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:51:09,900 INFO L413 NwaCegarLoop]: 13314 mSDtfsCounter, 8468 mSDsluCounter, 9540 mSDsCounter, 0 mSdLazyCounter, 1900 mSolverCounterSat, 17 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8478 SdHoareTripleChecker+Valid, 22078 SdHoareTripleChecker+Invalid, 1926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1900 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:51:09,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8478 Valid, 22078 Invalid, 1926 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 1900 Invalid, 9 Unknown, 0 Unchecked, 39.3s Time] [2022-11-03 03:51:09,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94798 states. [2022-11-03 03:51:16,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94798 to 94783. [2022-11-03 03:51:16,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94783 states, 60033 states have (on average 1.3303849549414488) internal successors, (79867), 61362 states have internal predecessors, (79867), 30929 states have call successors, (30929), 3835 states have call predecessors, (30929), 3820 states have return successors, (31042), 30777 states have call predecessors, (31042), 30928 states have call successors, (31042) [2022-11-03 03:51:17,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94783 states to 94783 states and 141838 transitions. [2022-11-03 03:51:17,563 INFO L78 Accepts]: Start accepts. Automaton has 94783 states and 141838 transitions. Word has length 547 [2022-11-03 03:51:17,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:51:17,563 INFO L495 AbstractCegarLoop]: Abstraction has 94783 states and 141838 transitions. [2022-11-03 03:51:17,564 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), 2 states have call successors, (86), 2 states have call predecessors, (86), 2 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) [2022-11-03 03:51:17,564 INFO L276 IsEmpty]: Start isEmpty. Operand 94783 states and 141838 transitions. [2022-11-03 03:51:18,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2022-11-03 03:51:18,328 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:51:18,329 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:51:18,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 03:51:18,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:51:18,555 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:51:18,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:51:18,555 INFO L85 PathProgramCache]: Analyzing trace with hash -864038739, now seen corresponding path program 1 times [2022-11-03 03:51:18,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:51:18,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286047542] [2022-11-03 03:51:18,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:51:18,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:51:19,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:51:19,879 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:51:19,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286047542] [2022-11-03 03:51:19,879 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-03 03:51:19,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911467179] [2022-11-03 03:51:19,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:51:19,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:51:19,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:51:19,881 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:51:19,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 03:51:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:51:26,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 20260 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 03:51:26,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:51:26,863 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2022-11-03 03:51:26,863 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:51:26,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911467179] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:51:26,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:51:26,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:51:26,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075185566] [2022-11-03 03:51:26,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:51:26,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:51:26,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:51:26,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:51:26,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:51:26,867 INFO L87 Difference]: Start difference. First operand 94783 states and 141838 transitions. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 3 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (86), 3 states have call predecessors, (86), 3 states have call successors, (86) [2022-11-03 03:51:29,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:51:32,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:51:34,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:51:39,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:51:43,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:51:46,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:51:49,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:51:54,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:51:56,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:51:58,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:52:03,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:52:07,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:52:09,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:52:11,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:52:11,089 INFO L93 Difference]: Finished difference Result 153048 states and 230271 transitions. [2022-11-03 03:52:11,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:52:11,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 3 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (86), 3 states have call predecessors, (86), 3 states have call successors, (86) Word has length 575 [2022-11-03 03:52:11,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:52:11,920 INFO L225 Difference]: With dead ends: 153048 [2022-11-03 03:52:11,920 INFO L226 Difference]: Without dead ends: 105471 [2022-11-03 03:52:12,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 574 GetRequests, 573 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:52:12,497 INFO L413 NwaCegarLoop]: 10855 mSDtfsCounter, 1327 mSDsluCounter, 10040 mSDsCounter, 0 mSdLazyCounter, 1780 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1789 SdHoareTripleChecker+Valid, 20112 SdHoareTripleChecker+Invalid, 1791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1780 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:52:12,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1789 Valid, 20112 Invalid, 1791 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1780 Invalid, 10 Unknown, 0 Unchecked, 40.1s Time] [2022-11-03 03:52:12,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105471 states. [2022-11-03 03:52:19,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105471 to 94793. [2022-11-03 03:52:19,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94793 states, 60041 states have (on average 1.330374244266418) internal successors, (79877), 61370 states have internal predecessors, (79877), 30931 states have call successors, (30931), 3835 states have call predecessors, (30931), 3820 states have return successors, (31044), 30779 states have call predecessors, (31044), 30930 states have call successors, (31044) [2022-11-03 03:52:20,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94793 states to 94793 states and 141852 transitions. [2022-11-03 03:52:20,439 INFO L78 Accepts]: Start accepts. Automaton has 94793 states and 141852 transitions. Word has length 575 [2022-11-03 03:52:20,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:52:20,441 INFO L495 AbstractCegarLoop]: Abstraction has 94793 states and 141852 transitions. [2022-11-03 03:52:20,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 3 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (86), 3 states have call predecessors, (86), 3 states have call successors, (86) [2022-11-03 03:52:20,442 INFO L276 IsEmpty]: Start isEmpty. Operand 94793 states and 141852 transitions. [2022-11-03 03:52:20,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2022-11-03 03:52:20,800 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:52:20,800 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:52:20,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 03:52:21,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:52:21,001 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:52:21,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:52:21,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1857453454, now seen corresponding path program 1 times [2022-11-03 03:52:21,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:52:21,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687817310] [2022-11-03 03:52:21,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:52:21,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:52:22,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:52:22,433 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:52:22,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687817310] [2022-11-03 03:52:22,434 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-03 03:52:22,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849887505] [2022-11-03 03:52:22,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:52:22,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:52:22,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:52:22,436 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:52:22,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 03:52:30,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:52:30,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 20551 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:52:30,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:52:30,579 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2022-11-03 03:52:30,580 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:52:30,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849887505] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:52:30,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:52:30,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:52:30,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517091209] [2022-11-03 03:52:30,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:52:30,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:52:30,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:52:30,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:52:30,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:52:30,584 INFO L87 Difference]: Start difference. First operand 94793 states and 141852 transitions. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 2 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) [2022-11-03 03:52:32,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:52:37,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:52:40,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:52:42,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:52:45,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:52:46,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:52:51,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:53:00,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:53:02,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:53:08,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:53:10,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:53:13,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:53:13,363 INFO L93 Difference]: Finished difference Result 201045 states and 300801 transitions. [2022-11-03 03:53:13,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:53:13,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 2 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) Word has length 609 [2022-11-03 03:53:13,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:53:14,163 INFO L225 Difference]: With dead ends: 201045 [2022-11-03 03:53:14,163 INFO L226 Difference]: Without dead ends: 106281 [2022-11-03 03:53:14,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 608 GetRequests, 607 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:53:14,891 INFO L413 NwaCegarLoop]: 16773 mSDtfsCounter, 9175 mSDsluCounter, 9562 mSDsCounter, 0 mSdLazyCounter, 2230 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9186 SdHoareTripleChecker+Valid, 25550 SdHoareTripleChecker+Invalid, 2239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2230 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:53:14,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9186 Valid, 25550 Invalid, 2239 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2230 Invalid, 9 Unknown, 0 Unchecked, 37.8s Time] [2022-11-03 03:53:14,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106281 states. [2022-11-03 03:53:21,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106281 to 83468. [2022-11-03 03:53:22,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83468 states, 52871 states have (on average 1.3307484254127973) internal successors, (70358), 54040 states have internal predecessors, (70358), 27231 states have call successors, (27231), 3377 states have call predecessors, (27231), 3365 states have return successors, (27330), 27098 states have call predecessors, (27330), 27230 states have call successors, (27330) [2022-11-03 03:53:22,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83468 states to 83468 states and 124919 transitions. [2022-11-03 03:53:22,649 INFO L78 Accepts]: Start accepts. Automaton has 83468 states and 124919 transitions. Word has length 609 [2022-11-03 03:53:22,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:53:22,650 INFO L495 AbstractCegarLoop]: Abstraction has 83468 states and 124919 transitions. [2022-11-03 03:53:22,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 2 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) [2022-11-03 03:53:22,651 INFO L276 IsEmpty]: Start isEmpty. Operand 83468 states and 124919 transitions. [2022-11-03 03:53:22,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 690 [2022-11-03 03:53:22,927 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:53:22,928 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 03:53:23,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-03 03:53:23,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:53:23,143 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:53:23,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:53:23,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1371593347, now seen corresponding path program 1 times [2022-11-03 03:53:23,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:53:23,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969228470] [2022-11-03 03:53:23,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:53:23,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:53:24,296 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:53:24,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1473969489] [2022-11-03 03:53:24,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:53:24,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:53:24,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:53:24,298 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:53:24,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ef534-4e96-423f-86b8-208b0f1243bb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-03 03:53:32,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:53:32,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 20918 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:53:32,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:53:35,147 INFO L134 CoverageAnalysis]: Checked inductivity of 1171 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1171 trivial. 0 not checked. [2022-11-03 03:53:35,148 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:53:35,148 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:53:35,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969228470] [2022-11-03 03:53:35,148 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:53:35,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473969489] [2022-11-03 03:53:35,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473969489] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:53:35,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:53:35,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:53:35,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160764162] [2022-11-03 03:53:35,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:53:35,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:53:35,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:53:35,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:53:35,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:53:35,151 INFO L87 Difference]: Start difference. First operand 83468 states and 124919 transitions. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 2 states have internal predecessors, (268), 2 states have call successors, (93), 2 states have call predecessors, (93), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) [2022-11-03 03:53:37,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:53:41,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:53:43,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []