./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 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/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_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7 --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 --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 17:50:51,178 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 17:50:51,180 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 17:50:51,210 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 17:50:51,211 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 17:50:51,212 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 17:50:51,213 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 17:50:51,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 17:50:51,222 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 17:50:51,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 17:50:51,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 17:50:51,229 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 17:50:51,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 17:50:51,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 17:50:51,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 17:50:51,239 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 17:50:51,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 17:50:51,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 17:50:51,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 17:50:51,252 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 17:50:51,255 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 17:50:51,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 17:50:51,259 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 17:50:51,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 17:50:51,263 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 17:50:51,264 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 17:50:51,264 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 17:50:51,271 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 17:50:51,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 17:50:51,273 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 17:50:51,274 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 17:50:51,274 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 17:50:51,276 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 17:50:51,277 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 17:50:51,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 17:50:51,279 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 17:50:51,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 17:50:51,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 17:50:51,280 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 17:50:51,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 17:50:51,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 17:50:51,283 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 17:50:51,325 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 17:50:51,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 17:50:51,326 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 17:50:51,326 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 17:50:51,333 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 17:50:51,334 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 17:50:51,334 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 17:50:51,334 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 17:50:51,335 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 17:50:51,335 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 17:50:51,336 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 17:50:51,336 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 17:50:51,337 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 17:50:51,337 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 17:50:51,337 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 17:50:51,337 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 17:50:51,338 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 17:50:51,338 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 17:50:51,339 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 17:50:51,339 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 17:50:51,339 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 17:50:51,339 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 17:50:51,340 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 17:50:51,340 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 17:50:51,340 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 17:50:51,340 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 17:50:51,342 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 17:50:51,342 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 17:50:51,342 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 17:50:51,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:50:51,343 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 17:50:51,343 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 17:50:51,343 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 17:50:51,344 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 17:50:51,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 17:50:51,344 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 17:50:51,344 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 17:50:51,345 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 17:50:51,345 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad536555636b28c8712c3c5d6c5a0e9b2263c8f80d84abafe69deecd86daf306 [2021-11-25 17:50:51,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 17:50:51,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 17:50:51,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 17:50:51,658 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 17:50:51,659 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 17:50:51,660 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/../../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 [2021-11-25 17:50:51,719 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/data/221e4b7cc/bb1ec064e7b54582bead0907249ec1ce/FLAGf3a80785a [2021-11-25 17:50:53,012 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 17:50:53,013 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/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 [2021-11-25 17:50:53,145 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/data/221e4b7cc/bb1ec064e7b54582bead0907249ec1ce/FLAGf3a80785a [2021-11-25 17:50:53,571 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/data/221e4b7cc/bb1ec064e7b54582bead0907249ec1ce [2021-11-25 17:50:53,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 17:50:53,575 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 17:50:53,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 17:50:53,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 17:50:53,580 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 17:50:53,581 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:50:53" (1/1) ... [2021-11-25 17:50:53,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3365a27e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:50:53, skipping insertion in model container [2021-11-25 17:50:53,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:50:53" (1/1) ... [2021-11-25 17:50:53,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 17:50:53,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 17:51:02,482 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_e93f3dba-47da-4d7c-a43c-43bffdf8408f/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] [2021-11-25 17:51:02,625 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:51:02,731 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 17:51:03,823 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_e93f3dba-47da-4d7c-a43c-43bffdf8408f/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] [2021-11-25 17:51:03,840 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:51:04,662 INFO L208 MainTranslator]: Completed translation [2021-11-25 17:51:04,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:04 WrapperNode [2021-11-25 17:51:04,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 17:51:04,664 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 17:51:04,664 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 17:51:04,664 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 17:51:04,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:04" (1/1) ... [2021-11-25 17:51:05,094 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:04" (1/1) ... [2021-11-25 17:51:05,829 INFO L137 Inliner]: procedures = 680, calls = 14241, calls flagged for inlining = 319, calls inlined = 270, statements flattened = 26144 [2021-11-25 17:51:05,830 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 17:51:05,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 17:51:05,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 17:51:05,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 17:51:05,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:04" (1/1) ... [2021-11-25 17:51:05,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:04" (1/1) ... [2021-11-25 17:51:06,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:04" (1/1) ... [2021-11-25 17:51:06,065 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:04" (1/1) ... [2021-11-25 17:51:06,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:04" (1/1) ... [2021-11-25 17:51:06,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:04" (1/1) ... [2021-11-25 17:51:06,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:04" (1/1) ... [2021-11-25 17:51:06,930 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 17:51:06,931 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 17:51:06,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 17:51:06,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 17:51:06,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:04" (1/1) ... [2021-11-25 17:51:06,942 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:51:06,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:51:06,970 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 17:51:06,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 17:51:07,016 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-25 17:51:07,016 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-25 17:51:07,017 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_fc_after_link_up [2021-11-25 17:51:07,017 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_fc_after_link_up [2021-11-25 17:51:07,017 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-11-25 17:51:07,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-11-25 17:51:07,017 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_collision_dist [2021-11-25 17:51:07,017 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_collision_dist [2021-11-25 17:51:07,018 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_ee_clk [2021-11-25 17:51:07,018 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_ee_clk [2021-11-25 17:51:07,018 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2021-11-25 17:51:07,018 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2021-11-25 17:51:07,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 17:51:07,018 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 17:51:07,019 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_slot_reset [2021-11-25 17:51:07,019 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_slot_reset [2021-11-25 17:51:07,019 INFO L130 BoogieDeclarations]: Found specification of procedure reg_pattern_test [2021-11-25 17:51:07,019 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_pattern_test [2021-11-25 17:51:07,019 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-25 17:51:07,019 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-25 17:51:07,019 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-25 17:51:07,020 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-25 17:51:07,020 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-11-25 17:51:07,020 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-11-25 17:51:07,020 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_eeprom [2021-11-25 17:51:07,020 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_eeprom [2021-11-25 17:51:07,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 17:51:07,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 17:51:07,021 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_manageability [2021-11-25 17:51:07,021 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_manageability [2021-11-25 17:51:07,021 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_in_ee_bits [2021-11-25 17:51:07,021 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_in_ee_bits [2021-11-25 17:51:07,021 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down_and_stop [2021-11-25 17:51:07,022 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down_and_stop [2021-11-25 17:51:07,022 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-25 17:51:07,022 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-25 17:51:07,022 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2021-11-25 17:51:07,022 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2021-11-25 17:51:07,022 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-25 17:51:07,023 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-25 17:51:07,023 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_unmap_and_free_tx_resource [2021-11-25 17:51:07,023 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_unmap_and_free_tx_resource [2021-11-25 17:51:07,023 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_6 [2021-11-25 17:51:07,023 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_6 [2021-11-25 17:51:07,024 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-25 17:51:07,024 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-25 17:51:07,024 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_get_info [2021-11-25 17:51:07,024 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_get_info [2021-11-25 17:51:07,025 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-25 17:51:07,025 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-25 17:51:07,026 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-25 17:51:07,026 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-25 17:51:07,026 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_do_read_eeprom [2021-11-25 17:51:07,027 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_do_read_eeprom [2021-11-25 17:51:07,027 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_rctl [2021-11-25 17:51:07,027 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_rctl [2021-11-25 17:51:07,027 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-25 17:51:07,027 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-25 17:51:07,028 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set [2021-11-25 17:51:07,028 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set [2021-11-25 17:51:07,029 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-25 17:51:07,029 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-25 17:51:07,029 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset [2021-11-25 17:51:07,029 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset [2021-11-25 17:51:07,029 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2021-11-25 17:51:07,029 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2021-11-25 17:51:07,029 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_eeprom_params [2021-11-25 17:51:07,030 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_eeprom_params [2021-11-25 17:51:07,030 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_fix_features [2021-11-25 17:51:07,030 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_fix_features [2021-11-25 17:51:07,030 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2021-11-25 17:51:07,030 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2021-11-25 17:51:07,030 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-25 17:51:07,031 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-25 17:51:07,031 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-25 17:51:07,031 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-25 17:51:07,031 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-25 17:51:07,032 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-25 17:51:07,032 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-25 17:51:07,032 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-25 17:51:07,032 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-25 17:51:07,032 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-25 17:51:07,033 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-25 17:51:07,033 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-25 17:51:07,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 17:51:07,034 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-25 17:51:07,034 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-25 17:51:07,034 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg [2021-11-25 17:51:07,034 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg [2021-11-25 17:51:07,035 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_speed_and_duplex [2021-11-25 17:51:07,035 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_speed_and_duplex [2021-11-25 17:51:07,035 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_standby_eeprom [2021-11-25 17:51:07,035 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_standby_eeprom [2021-11-25 17:51:07,035 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_bit [2021-11-25 17:51:07,036 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_bit [2021-11-25 17:51:07,036 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-25 17:51:07,036 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-25 17:51:07,036 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure_rx [2021-11-25 17:51:07,036 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure_rx [2021-11-25 17:51:07,036 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-25 17:51:07,036 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-25 17:51:07,037 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_hw_dev [2021-11-25 17:51:07,037 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_hw_dev [2021-11-25 17:51:07,037 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_stats [2021-11-25 17:51:07,037 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_stats [2021-11-25 17:51:07,038 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_validate_option [2021-11-25 17:51:07,038 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_validate_option [2021-11-25 17:51:07,038 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 17:51:07,038 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 17:51:07,038 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-25 17:51:07,039 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-25 17:51:07,039 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link [2021-11-25 17:51:07,042 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link [2021-11-25 17:51:07,042 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_irq [2021-11-25 17:51:07,043 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_irq [2021-11-25 17:51:07,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 17:51:07,044 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-11-25 17:51:07,045 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-11-25 17:51:07,045 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_link [2021-11-25 17:51:07,046 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_link [2021-11-25 17:51:07,046 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_vlan_mode [2021-11-25 17:51:07,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_vlan_mode [2021-11-25 17:51:07,052 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset [2021-11-25 17:51:07,052 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset [2021-11-25 17:51:07,052 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 17:51:07,052 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 17:51:07,052 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_dsp_after_link_change [2021-11-25 17:51:07,052 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_dsp_after_link_change [2021-11-25 17:51:07,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 17:51:07,053 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_maybe_stop_tx [2021-11-25 17:51:07,053 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_maybe_stop_tx [2021-11-25 17:51:07,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 17:51:07,053 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-25 17:51:07,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-25 17:51:07,053 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2021-11-25 17:51:07,053 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2021-11-25 17:51:07,054 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shutdown [2021-11-25 17:51:07,054 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shutdown [2021-11-25 17:51:07,054 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2021-11-25 17:51:07,054 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2021-11-25 17:51:07,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_10 [2021-11-25 17:51:07,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_10 [2021-11-25 17:51:07,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 17:51:07,055 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 17:51:07,055 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_used [2021-11-25 17:51:07,055 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_used [2021-11-25 17:51:07,055 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_disable_receiver [2021-11-25 17:51:07,055 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_disable_receiver [2021-11-25 17:51:07,055 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_kill_vid [2021-11-25 17:51:07,055 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_kill_vid [2021-11-25 17:51:07,056 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_force_mac_fc [2021-11-25 17:51:07,056 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_force_mac_fc [2021-11-25 17:51:07,056 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-25 17:51:07,056 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-25 17:51:07,056 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2021-11-25 17:51:07,056 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2021-11-25 17:51:07,056 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_leave_82542_rst [2021-11-25 17:51:07,057 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_leave_82542_rst [2021-11-25 17:51:07,057 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_has_link [2021-11-25 17:51:07,057 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_has_link [2021-11-25 17:51:07,057 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-25 17:51:07,057 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-25 17:51:07,057 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-25 17:51:07,057 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-25 17:51:07,058 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2021-11-25 17:51:07,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2021-11-25 17:51:07,058 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_tx_resources [2021-11-25 17:51:07,058 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_tx_resources [2021-11-25 17:51:07,058 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_stats [2021-11-25 17:51:07,058 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_stats [2021-11-25 17:51:07,058 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-25 17:51:07,059 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-25 17:51:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure pci_wake_from_d3 [2021-11-25 17:51:07,059 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_wake_from_d3 [2021-11-25 17:51:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure reg_set_and_check [2021-11-25 17:51:07,059 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_set_and_check [2021-11-25 17:51:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-25 17:51:07,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-25 17:51:07,060 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_frag_len [2021-11-25 17:51:07,060 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_frag_len [2021-11-25 17:51:07,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 17:51:07,060 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_netpoll [2021-11-25 17:51:07,060 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_netpoll [2021-11-25 17:51:07,060 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-25 17:51:07,060 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-25 17:51:07,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 17:51:07,061 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-25 17:51:07,061 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-25 17:51:07,061 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 17:51:07,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 17:51:07,061 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_rx_mode [2021-11-25 17:51:07,061 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_rx_mode [2021-11-25 17:51:07,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 17:51:07,062 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 17:51:07,062 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-25 17:51:07,062 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-25 17:51:07,062 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_change_mtu [2021-11-25 17:51:07,062 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_change_mtu [2021-11-25 17:51:07,062 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_open [2021-11-25 17:51:07,062 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_open [2021-11-25 17:51:07,063 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2021-11-25 17:51:07,063 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2021-11-25 17:51:07,063 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_hw_reset [2021-11-25 17:51:07,063 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_hw_reset [2021-11-25 17:51:07,063 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_vfta [2021-11-25 17:51:07,063 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_vfta [2021-11-25 17:51:07,063 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-25 17:51:07,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-25 17:51:07,064 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_remove [2021-11-25 17:51:07,064 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_remove [2021-11-25 17:51:07,064 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_ee_bits [2021-11-25 17:51:07,064 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_ee_bits [2021-11-25 17:51:07,064 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure [2021-11-25 17:51:07,064 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure [2021-11-25 17:51:07,065 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-25 17:51:07,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-25 17:51:07,065 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-25 17:51:07,065 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-25 17:51:07,065 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 17:51:07,065 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 17:51:07,065 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_cable_length [2021-11-25 17:51:07,065 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_cable_length [2021-11-25 17:51:07,066 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-25 17:51:07,066 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-25 17:51:07,066 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_ee_clk [2021-11-25 17:51:07,066 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_ee_clk [2021-11-25 17:51:07,066 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_rx_resources [2021-11-25 17:51:07,066 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_rx_resources [2021-11-25 17:51:07,066 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_add_vid [2021-11-25 17:51:07,067 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_add_vid [2021-11-25 17:51:07,067 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2021-11-25 17:51:07,067 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2021-11-25 17:51:07,067 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2021-11-25 17:51:07,067 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2021-11-25 17:51:07,067 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-25 17:51:07,067 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-25 17:51:07,068 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_write [2021-11-25 17:51:07,068 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_write [2021-11-25 17:51:07,069 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-11-25 17:51:07,072 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-11-25 17:51:07,072 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_resume [2021-11-25 17:51:07,072 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_resume [2021-11-25 17:51:07,073 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-25 17:51:07,073 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-25 17:51:07,073 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-25 17:51:07,073 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-25 17:51:07,073 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom [2021-11-25 17:51:07,073 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom [2021-11-25 17:51:07,074 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_enter_82542_rst [2021-11-25 17:51:07,076 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_enter_82542_rst [2021-11-25 17:51:07,076 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_acquire_eeprom [2021-11-25 17:51:07,076 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_acquire_eeprom [2021-11-25 17:51:07,076 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-11-25 17:51:07,076 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-11-25 17:51:07,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 17:51:07,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 17:51:07,077 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_down_phy [2021-11-25 17:51:07,077 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_down_phy [2021-11-25 17:51:07,077 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-25 17:51:07,077 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-25 17:51:07,077 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2021-11-25 17:51:07,077 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2021-11-25 17:51:07,078 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_spi_eeprom_ready [2021-11-25 17:51:07,078 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_spi_eeprom_ready [2021-11-25 17:51:07,078 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_clear_mwi [2021-11-25 17:51:07,078 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_clear_mwi [2021-11-25 17:51:07,078 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-25 17:51:07,078 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-25 17:51:07,078 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_up_phy [2021-11-25 17:51:07,079 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_up_phy [2021-11-25 17:51:07,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 17:51:07,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 17:51:07,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 17:51:07,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 17:51:07,079 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-11-25 17:51:07,079 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-11-25 17:51:07,079 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-25 17:51:07,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-25 17:51:07,080 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_phy_info_task [2021-11-25 17:51:07,080 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_phy_info_task [2021-11-25 17:51:07,080 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_sync_single_for_cpu [2021-11-25 17:51:07,080 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_sync_single_for_cpu [2021-11-25 17:51:07,080 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-25 17:51:07,080 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-25 17:51:07,081 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg_ex [2021-11-25 17:51:07,081 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg_ex [2021-11-25 17:51:07,081 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-25 17:51:07,081 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-25 17:51:07,081 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-25 17:51:07,081 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-25 17:51:07,081 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-25 17:51:07,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-25 17:51:07,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-25 17:51:07,082 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-11-25 17:51:07,082 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-11-25 17:51:07,082 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_alloc_frag [2021-11-25 17:51:07,082 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_alloc_frag [2021-11-25 17:51:07,082 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-25 17:51:07,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-25 17:51:07,082 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-25 17:51:07,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-25 17:51:07,083 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_polarity [2021-11-25 17:51:07,083 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_polarity [2021-11-25 17:51:07,083 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-25 17:51:07,083 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-25 17:51:07,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 17:51:07,083 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 17:51:07,084 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2021-11-25 17:51:07,084 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2021-11-25 17:51:07,084 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-25 17:51:07,084 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-25 17:51:07,084 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_mdi_clk [2021-11-25 17:51:07,084 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_mdi_clk [2021-11-25 17:51:07,084 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-25 17:51:07,084 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-25 17:51:07,085 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_mac_to_phy [2021-11-25 17:51:07,085 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_mac_to_phy [2021-11-25 17:51:07,085 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom_len [2021-11-25 17:51:07,085 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom_len [2021-11-25 17:51:07,085 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-25 17:51:07,085 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-25 17:51:07,085 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_rx_resources [2021-11-25 17:51:07,085 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_rx_resources [2021-11-25 17:51:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-25 17:51:07,086 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-25 17:51:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_close [2021-11-25 17:51:07,086 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_close [2021-11-25 17:51:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset_clk_and_crs [2021-11-25 17:51:07,086 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset_clk_and_crs [2021-11-25 17:51:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-25 17:51:07,086 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-25 17:51:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-25 17:51:07,087 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-25 17:51:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-25 17:51:07,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-25 17:51:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-25 17:51:07,087 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-25 17:51:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 17:51:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-25 17:51:07,088 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-25 17:51:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-25 17:51:07,088 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-25 17:51:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-25 17:51:07,088 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-25 17:51:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_regs_len [2021-11-25 17:51:07,088 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_regs_len [2021-11-25 17:51:07,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 17:51:07,089 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2021-11-25 17:51:07,089 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2021-11-25 17:51:07,089 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_task [2021-11-25 17:51:07,089 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_task [2021-11-25 17:51:07,089 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_features [2021-11-25 17:51:07,089 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_features [2021-11-25 17:51:07,089 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2021-11-25 17:51:07,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2021-11-25 17:51:07,090 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-25 17:51:07,090 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-25 17:51:07,090 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_tx_resources [2021-11-25 17:51:07,090 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_tx_resources [2021-11-25 17:51:07,090 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_setup_autoneg [2021-11-25 17:51:07,090 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_setup_autoneg [2021-11-25 17:51:07,090 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_mng_vlan [2021-11-25 17:51:07,091 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_mng_vlan [2021-11-25 17:51:07,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 17:51:07,091 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_6 [2021-11-25 17:51:07,091 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_6 [2021-11-25 17:51:07,091 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_watchdog [2021-11-25 17:51:07,091 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_watchdog [2021-11-25 17:51:07,091 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_media_type [2021-11-25 17:51:07,091 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_media_type [2021-11-25 17:51:07,092 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_eeprom [2021-11-25 17:51:07,092 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_eeprom [2021-11-25 17:51:07,092 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_filter_on_off [2021-11-25 17:51:07,092 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_filter_on_off [2021-11-25 17:51:07,092 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-11-25 17:51:07,092 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-11-25 17:51:07,093 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-25 17:51:07,093 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-25 17:51:07,094 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_nway_reset [2021-11-25 17:51:07,094 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_nway_reset [2021-11-25 17:51:07,094 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-25 17:51:07,094 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-25 17:51:07,094 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_phy_loopback [2021-11-25 17:51:07,094 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_phy_loopback [2021-11-25 17:51:07,094 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 17:51:07,094 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 17:51:07,095 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-25 17:51:07,095 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-25 17:51:07,095 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_all_rx_rings [2021-11-25 17:51:07,095 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_all_rx_rings [2021-11-25 17:51:07,095 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_enable [2021-11-25 17:51:07,095 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_enable [2021-11-25 17:51:07,095 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_up [2021-11-25 17:51:07,095 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_up [2021-11-25 17:51:07,096 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_tx_timeout [2021-11-25 17:51:07,096 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_tx_timeout [2021-11-25 17:51:07,096 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reinit_locked [2021-11-25 17:51:07,096 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reinit_locked [2021-11-25 17:51:07,096 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_bit [2021-11-25 17:51:07,096 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_bit [2021-11-25 17:51:07,096 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_phy_reg [2021-11-25 17:51:07,097 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_phy_reg [2021-11-25 17:51:07,097 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_rx_resources [2021-11-25 17:51:07,097 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_rx_resources [2021-11-25 17:51:07,097 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_mdi_clk [2021-11-25 17:51:07,097 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_mdi_clk [2021-11-25 17:51:07,097 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-25 17:51:07,097 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-25 17:51:07,097 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-25 17:51:07,098 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-25 17:51:07,098 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_copper_link_rtl_setup [2021-11-25 17:51:07,098 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_copper_link_rtl_setup [2021-11-25 17:51:07,098 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-11-25 17:51:07,098 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-11-25 17:51:07,098 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_eeprom [2021-11-25 17:51:07,098 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_eeprom [2021-11-25 17:51:07,098 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_desc_rings [2021-11-25 17:51:07,099 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_desc_rings [2021-11-25 17:51:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_set_mwi [2021-11-25 17:51:07,099 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_set_mwi [2021-11-25 17:51:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-11-25 17:51:07,099 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-11-25 17:51:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-25 17:51:07,099 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-25 17:51:07,100 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_polarity_reversal_workaround [2021-11-25 17:51:07,100 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_polarity_reversal_workaround [2021-11-25 17:51:07,100 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-25 17:51:07,100 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-25 17:51:07,100 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-25 17:51:07,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-25 17:51:07,100 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 17:51:07,100 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 17:51:07,101 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_link_test [2021-11-25 17:51:07,101 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_link_test [2021-11-25 17:51:07,101 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_mdi_bits [2021-11-25 17:51:07,101 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_mdi_bits [2021-11-25 17:51:07,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 17:51:07,101 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_82547_tx_fifo_stall_task [2021-11-25 17:51:07,101 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_82547_tx_fifo_stall_task [2021-11-25 17:51:07,101 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs___0 [2021-11-25 17:51:07,102 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs___0 [2021-11-25 17:51:07,102 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_2 [2021-11-25 17:51:07,102 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_2 [2021-11-25 17:51:07,102 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_64k_bound [2021-11-25 17:51:07,102 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_64k_bound [2021-11-25 17:51:07,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 17:51:07,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 17:51:07,102 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_spd_dplx [2021-11-25 17:51:07,103 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_spd_dplx [2021-11-25 17:51:07,103 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2021-11-25 17:51:07,103 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2021-11-25 17:51:07,103 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down [2021-11-25 17:51:07,103 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down [2021-11-25 17:51:07,103 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-25 17:51:07,103 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-25 17:51:07,104 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_init_script [2021-11-25 17:51:07,104 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_init_script [2021-11-25 17:51:07,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-25 17:51:07,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-25 17:51:07,104 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-25 17:51:07,104 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-25 17:51:07,104 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-11-25 17:51:07,104 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-11-25 17:51:07,105 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2021-11-25 17:51:07,105 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2021-11-25 17:51:07,105 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_request_irq [2021-11-25 17:51:07,105 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_request_irq [2021-11-25 17:51:07,105 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_error_detected [2021-11-25 17:51:07,105 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_error_detected [2021-11-25 17:51:07,105 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-25 17:51:07,105 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-25 17:51:07,106 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_eeprom [2021-11-25 17:51:07,106 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_eeprom [2021-11-25 17:51:07,106 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw [2021-11-25 17:51:07,106 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw [2021-11-25 17:51:07,106 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_disable [2021-11-25 17:51:07,106 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_disable [2021-11-25 17:51:07,106 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2021-11-25 17:51:07,107 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2021-11-25 17:51:07,107 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-25 17:51:07,107 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-25 17:51:07,107 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs___0 [2021-11-25 17:51:07,107 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs___0 [2021-11-25 17:51:07,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_12 [2021-11-25 17:51:07,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_12 [2021-11-25 17:51:07,107 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2021-11-25 17:51:07,108 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2021-11-25 17:51:07,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_9 [2021-11-25 17:51:07,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_9 [2021-11-25 17:51:07,108 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_tx_ring [2021-11-25 17:51:07,108 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_tx_ring [2021-11-25 17:51:07,108 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_shutdown [2021-11-25 17:51:07,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_shutdown [2021-11-25 17:51:07,108 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_tx_resources [2021-11-25 17:51:07,109 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_tx_resources [2021-11-25 17:51:07,109 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-25 17:51:07,109 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-25 17:51:07,109 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-25 17:51:07,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-25 17:51:07,109 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-25 17:51:07,109 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-25 17:51:07,110 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_manageability [2021-11-25 17:51:07,110 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_manageability [2021-11-25 17:51:07,110 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2021-11-25 17:51:07,110 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2021-11-25 17:51:07,110 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-25 17:51:07,114 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-25 17:51:07,114 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_wol_exclusion [2021-11-25 17:51:07,114 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_wol_exclusion [2021-11-25 17:51:07,114 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-25 17:51:07,114 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-25 17:51:07,114 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-25 17:51:07,114 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-25 17:51:07,115 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_ioctl [2021-11-25 17:51:07,115 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_ioctl [2021-11-25 17:51:07,115 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-25 17:51:07,115 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-25 17:51:07,115 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_mac [2021-11-25 17:51:07,115 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_mac [2021-11-25 17:51:07,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 17:51:07,116 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2021-11-25 17:51:07,116 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2021-11-25 17:51:07,116 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_rx_ring [2021-11-25 17:51:07,116 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_rx_ring [2021-11-25 17:51:07,116 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-25 17:51:07,116 INFO L130 BoogieDeclarations]: Found specification of procedure skb_free_frag [2021-11-25 17:51:07,116 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_free_frag [2021-11-25 17:51:09,184 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 17:51:09,191 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 17:51:10,287 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 17:52:14,274 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 17:52:25,582 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 17:52:25,583 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-25 17:52:25,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:52:25 BoogieIcfgContainer [2021-11-25 17:52:25,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 17:52:25,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 17:52:25,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 17:52:25,599 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 17:52:25,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:50:53" (1/3) ... [2021-11-25 17:52:25,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3541fa76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:52:25, skipping insertion in model container [2021-11-25 17:52:25,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:04" (2/3) ... [2021-11-25 17:52:25,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3541fa76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:52:25, skipping insertion in model container [2021-11-25 17:52:25,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:52:25" (3/3) ... [2021-11-25 17:52:25,602 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--net--ethernet--intel--e1000--e1000.ko-entry_point.cil.out.i [2021-11-25 17:52:25,607 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 17:52:25,607 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 17:52:25,680 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 17:52:25,687 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 17:52:25,687 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 17:52:25,825 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) [2021-11-25 17:52:25,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-25 17:52:25,851 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:52:25,852 INFO L514 BasicCegarLoop]: 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] [2021-11-25 17:52:25,853 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:52:25,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:52:25,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1947453057, now seen corresponding path program 1 times [2021-11-25 17:52:25,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:52:25,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761014489] [2021-11-25 17:52:25,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:52:25,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:52:26,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:52:27,554 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2021-11-25 17:52:27,555 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:52:27,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761014489] [2021-11-25 17:52:27,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761014489] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:52:27,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:52:27,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:52:27,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125678900] [2021-11-25 17:52:27,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:52:27,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:52:27,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:52:27,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:52:27,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:52:27,621 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) [2021-11-25 17:52:29,070 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:52:31,221 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:52:34,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 17:52:37,950 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:52:41,195 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:52:42,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:52:45,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:52:50,593 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:52:56,058 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:52:58,185 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:01,179 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:04,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:07,000 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:07,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:07,270 INFO L93 Difference]: Finished difference Result 19094 states and 28736 transitions. [2021-11-25 17:53:07,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:53:07,280 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 [2021-11-25 17:53:07,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:07,493 INFO L225 Difference]: With dead ends: 19094 [2021-11-25 17:53:07,493 INFO L226 Difference]: Without dead ends: 12627 [2021-11-25 17:53:07,595 INFO L932 BasicCegarLoop]: 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 [2021-11-25 17:53:07,600 INFO L933 BasicCegarLoop]: 10894 mSDtfsCounter, 9325 mSDsluCounter, 9632 mSDsCounter, 0 mSdLazyCounter, 1594 mSolverCounterSat, 3 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9333 SdHoareTripleChecker+Valid, 19737 SdHoareTripleChecker+Invalid, 1606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1594 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.7s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:07,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9333 Valid, 19737 Invalid, 1606 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1594 Invalid, 9 Unknown, 0 Unchecked, 38.7s Time] [2021-11-25 17:53:07,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12627 states. [2021-11-25 17:53:09,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12627 to 12621. [2021-11-25 17:53:09,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12621 states, 8006 states have (on average 1.3323757182113416) internal successors, (10667), 8174 states have internal predecessors, (10667), 4110 states have call successors, (4110), 505 states have call predecessors, (4110), 504 states have return successors, (4117), 4095 states have call predecessors, (4117), 4109 states have call successors, (4117) [2021-11-25 17:53:09,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12621 states to 12621 states and 18894 transitions. [2021-11-25 17:53:09,210 INFO L78 Accepts]: Start accepts. Automaton has 12621 states and 18894 transitions. Word has length 156 [2021-11-25 17:53:09,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:09,215 INFO L470 AbstractCegarLoop]: Abstraction has 12621 states and 18894 transitions. [2021-11-25 17:53:09,215 INFO L471 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) [2021-11-25 17:53:09,217 INFO L276 IsEmpty]: Start isEmpty. Operand 12621 states and 18894 transitions. [2021-11-25 17:53:09,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-25 17:53:09,233 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:09,233 INFO L514 BasicCegarLoop]: 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] [2021-11-25 17:53:09,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 17:53:09,234 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:53:09,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:09,237 INFO L85 PathProgramCache]: Analyzing trace with hash 206284612, now seen corresponding path program 1 times [2021-11-25 17:53:09,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:09,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585350087] [2021-11-25 17:53:09,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:09,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:10,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:10,577 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2021-11-25 17:53:10,577 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:10,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585350087] [2021-11-25 17:53:10,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585350087] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:10,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:10,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:53:10,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350551207] [2021-11-25 17:53:10,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:10,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:53:10,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:10,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:53:10,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:53:10,591 INFO L87 Difference]: Start difference. First operand 12621 states and 18894 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) [2021-11-25 17:53:12,890 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:17,751 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:21,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:25,158 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:28,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:31,021 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:34,972 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 17:53:41,248 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:43,599 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:44,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:44,131 INFO L93 Difference]: Finished difference Result 24882 states and 37247 transitions. [2021-11-25 17:53:44,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:53:44,133 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 [2021-11-25 17:53:44,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:44,395 INFO L225 Difference]: With dead ends: 24882 [2021-11-25 17:53:44,396 INFO L226 Difference]: Without dead ends: 24877 [2021-11-25 17:53:44,422 INFO L932 BasicCegarLoop]: 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 [2021-11-25 17:53:44,423 INFO L933 BasicCegarLoop]: 10934 mSDtfsCounter, 9177 mSDsluCounter, 9550 mSDsCounter, 0 mSdLazyCounter, 1586 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9184 SdHoareTripleChecker+Valid, 19696 SdHoareTripleChecker+Invalid, 1595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1586 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.8s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:44,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9184 Valid, 19696 Invalid, 1595 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1586 Invalid, 9 Unknown, 0 Unchecked, 32.8s Time] [2021-11-25 17:53:44,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24877 states. [2021-11-25 17:53:46,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24877 to 24801. [2021-11-25 17:53:46,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24801 states, 15714 states have (on average 1.3323151330024183) internal successors, (20936), 16054 states have internal predecessors, (20936), 8094 states have call successors, (8094), 995 states have call predecessors, (8094), 992 states have return successors, (8113), 8059 states have call predecessors, (8113), 8093 states have call successors, (8113) [2021-11-25 17:53:46,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24801 states to 24801 states and 37143 transitions. [2021-11-25 17:53:46,590 INFO L78 Accepts]: Start accepts. Automaton has 24801 states and 37143 transitions. Word has length 170 [2021-11-25 17:53:46,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:46,591 INFO L470 AbstractCegarLoop]: Abstraction has 24801 states and 37143 transitions. [2021-11-25 17:53:46,592 INFO L471 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) [2021-11-25 17:53:46,592 INFO L276 IsEmpty]: Start isEmpty. Operand 24801 states and 37143 transitions. [2021-11-25 17:53:46,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2021-11-25 17:53:46,796 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:46,797 INFO L514 BasicCegarLoop]: 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] [2021-11-25 17:53:46,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 17:53:46,797 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:53:46,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:46,798 INFO L85 PathProgramCache]: Analyzing trace with hash -635196666, now seen corresponding path program 1 times [2021-11-25 17:53:46,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:46,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948743209] [2021-11-25 17:53:46,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:46,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:47,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:48,418 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:48,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948743209] [2021-11-25 17:53:48,419 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2021-11-25 17:53:48,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887217631] [2021-11-25 17:53:48,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:48,420 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:53:48,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:53:48,426 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:53:48,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 17:53:53,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:53,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 20048 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-25 17:53:53,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:53:55,056 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2021-11-25 17:53:55,056 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:53:55,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887217631] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:55,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:55,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:53:55,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357770409] [2021-11-25 17:53:55,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:55,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:53:55,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:55,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:53:55,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:53:55,059 INFO L87 Difference]: Start difference. First operand 24801 states and 37143 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) [2021-11-25 17:53:57,232 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:00,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 17:54:05,233 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:09,104 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:12,498 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:16,187 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:20,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:22,551 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:25,881 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:26,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:54:26,422 INFO L93 Difference]: Finished difference Result 49573 states and 74500 transitions. [2021-11-25 17:54:26,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:54:26,434 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 [2021-11-25 17:54:26,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:54:26,624 INFO L225 Difference]: With dead ends: 49573 [2021-11-25 17:54:26,625 INFO L226 Difference]: Without dead ends: 24801 [2021-11-25 17:54:26,847 INFO L932 BasicCegarLoop]: 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 [2021-11-25 17:54:26,851 INFO L933 BasicCegarLoop]: 8802 mSDtfsCounter, 43 mSDsluCounter, 9522 mSDsCounter, 0 mSdLazyCounter, 1571 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 17544 SdHoareTripleChecker+Invalid, 1581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1571 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.3s IncrementalHoareTripleChecker+Time [2021-11-25 17:54:26,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 17544 Invalid, 1581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1571 Invalid, 8 Unknown, 0 Unchecked, 30.3s Time] [2021-11-25 17:54:26,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24801 states. [2021-11-25 17:54:28,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24801 to 24801. [2021-11-25 17:54:28,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24801 states, 15714 states have (on average 1.3320605829196894) internal successors, (20932), 16054 states have internal predecessors, (20932), 8094 states have call successors, (8094), 995 states have call predecessors, (8094), 992 states have return successors, (8113), 8059 states have call predecessors, (8113), 8093 states have call successors, (8113) [2021-11-25 17:54:29,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24801 states to 24801 states and 37139 transitions. [2021-11-25 17:54:29,086 INFO L78 Accepts]: Start accepts. Automaton has 24801 states and 37139 transitions. Word has length 532 [2021-11-25 17:54:29,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:54:29,088 INFO L470 AbstractCegarLoop]: Abstraction has 24801 states and 37139 transitions. [2021-11-25 17:54:29,089 INFO L471 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) [2021-11-25 17:54:29,089 INFO L276 IsEmpty]: Start isEmpty. Operand 24801 states and 37139 transitions. [2021-11-25 17:54:29,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2021-11-25 17:54:29,216 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:54:29,217 INFO L514 BasicCegarLoop]: 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] [2021-11-25 17:54:29,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 17:54:29,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:54:29,437 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:54:29,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:54:29,438 INFO L85 PathProgramCache]: Analyzing trace with hash 51309302, now seen corresponding path program 1 times [2021-11-25 17:54:29,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:54:29,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306998839] [2021-11-25 17:54:29,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:54:29,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:54:30,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:54:31,320 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:54:31,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306998839] [2021-11-25 17:54:31,320 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2021-11-25 17:54:31,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1831014798] [2021-11-25 17:54:31,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:54:31,321 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:54:31,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:54:31,322 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:54:31,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 17:54:37,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:54:37,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 20115 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-25 17:54:37,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:54:39,675 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2021-11-25 17:54:39,676 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:54:39,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1831014798] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:54:39,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:54:39,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:54:39,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423386716] [2021-11-25 17:54:39,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:54:39,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:54:39,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:54:39,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:54:39,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:54:39,680 INFO L87 Difference]: Start difference. First operand 24801 states and 37139 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) [2021-11-25 17:54:41,927 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:44,512 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 17:54:49,093 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:52,494 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:55,269 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:56,619 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:59,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:55:02,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:55:06,621 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:55:08,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:55:11,384 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:55:14,007 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:55:15,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:55:15,575 INFO L93 Difference]: Finished difference Result 37223 states and 55751 transitions. [2021-11-25 17:55:15,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:55:15,576 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 [2021-11-25 17:55:15,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:55:16,021 INFO L225 Difference]: With dead ends: 37223 [2021-11-25 17:55:16,022 INFO L226 Difference]: Without dead ends: 37218 [2021-11-25 17:55:16,045 INFO L932 BasicCegarLoop]: 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 [2021-11-25 17:55:16,049 INFO L933 BasicCegarLoop]: 10869 mSDtfsCounter, 9131 mSDsluCounter, 9578 mSDsCounter, 0 mSdLazyCounter, 1588 mSolverCounterSat, 2 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9139 SdHoareTripleChecker+Valid, 19662 SdHoareTripleChecker+Invalid, 1599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1588 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.9s IncrementalHoareTripleChecker+Time [2021-11-25 17:55:16,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9139 Valid, 19662 Invalid, 1599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1588 Invalid, 9 Unknown, 0 Unchecked, 34.9s Time] [2021-11-25 17:55:16,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37218 states. [2021-11-25 17:55:18,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37218 to 37216. [2021-11-25 17:55:18,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37216 states, 23594 states have (on average 1.3326693227091633) internal successors, (31443), 24104 states have internal predecessors, (31443), 12133 states have call successors, (12133), 1492 states have call predecessors, (12133), 1488 states have return successors, (12168), 12081 states have call predecessors, (12168), 12132 states have call successors, (12168) [2021-11-25 17:55:19,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37216 states to 37216 states and 55744 transitions. [2021-11-25 17:55:19,006 INFO L78 Accepts]: Start accepts. Automaton has 37216 states and 55744 transitions. Word has length 537 [2021-11-25 17:55:19,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:55:19,010 INFO L470 AbstractCegarLoop]: Abstraction has 37216 states and 55744 transitions. [2021-11-25 17:55:19,011 INFO L471 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) [2021-11-25 17:55:19,011 INFO L276 IsEmpty]: Start isEmpty. Operand 37216 states and 55744 transitions. [2021-11-25 17:55:19,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2021-11-25 17:55:19,514 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:55:19,515 INFO L514 BasicCegarLoop]: 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] [2021-11-25 17:55:19,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 17:55:19,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:55:19,742 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:55:19,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:55:19,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1085492942, now seen corresponding path program 1 times [2021-11-25 17:55:19,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:55:19,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537928414] [2021-11-25 17:55:19,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:55:19,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:55:20,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:55:21,274 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:55:21,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537928414] [2021-11-25 17:55:21,274 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2021-11-25 17:55:21,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850437625] [2021-11-25 17:55:21,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:55:21,277 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:55:21,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:55:21,278 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:55:21,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 17:55:27,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:55:27,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 20260 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-25 17:55:27,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:55:29,169 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2021-11-25 17:55:29,169 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:55:29,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850437625] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:55:29,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:55:29,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:55:29,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326663787] [2021-11-25 17:55:29,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:55:29,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:55:29,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:55:29,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:55:29,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:55:29,174 INFO L87 Difference]: Start difference. First operand 37216 states and 55744 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) [2021-11-25 17:55:31,491 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:55:34,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 17:55:40,701 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:55:45,408 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:55:49,502 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:55:51,698 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:55:58,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:56:00,086 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:56:04,915 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:56:05,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:56:05,493 INFO L93 Difference]: Finished difference Result 108682 states and 162757 transitions. [2021-11-25 17:56:05,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:56:05,494 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 [2021-11-25 17:56:05,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:56:06,417 INFO L225 Difference]: With dead ends: 108682 [2021-11-25 17:56:06,418 INFO L226 Difference]: Without dead ends: 71495 [2021-11-25 17:56:06,861 INFO L932 BasicCegarLoop]: 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 [2021-11-25 17:56:06,862 INFO L933 BasicCegarLoop]: 13337 mSDtfsCounter, 8566 mSDsluCounter, 9539 mSDsCounter, 0 mSdLazyCounter, 1898 mSolverCounterSat, 17 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8576 SdHoareTripleChecker+Valid, 22101 SdHoareTripleChecker+Invalid, 1924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1898 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.8s IncrementalHoareTripleChecker+Time [2021-11-25 17:56:06,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8576 Valid, 22101 Invalid, 1924 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 1898 Invalid, 9 Unknown, 0 Unchecked, 33.8s Time] [2021-11-25 17:56:06,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71495 states. [2021-11-25 17:56:11,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71495 to 71477. [2021-11-25 17:56:11,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71477 states, 45282 states have (on average 1.3302857647630406) internal successors, (60238), 46275 states have internal predecessors, (60238), 23314 states have call successors, (23314), 2890 states have call predecessors, (23314), 2880 states have return successors, (23397), 23205 states have call predecessors, (23397), 23313 states have call successors, (23397) [2021-11-25 17:56:13,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71477 states to 71477 states and 106949 transitions. [2021-11-25 17:56:13,298 INFO L78 Accepts]: Start accepts. Automaton has 71477 states and 106949 transitions. Word has length 547 [2021-11-25 17:56:13,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:56:13,300 INFO L470 AbstractCegarLoop]: Abstraction has 71477 states and 106949 transitions. [2021-11-25 17:56:13,300 INFO L471 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) [2021-11-25 17:56:13,300 INFO L276 IsEmpty]: Start isEmpty. Operand 71477 states and 106949 transitions. [2021-11-25 17:56:13,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2021-11-25 17:56:13,717 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:56:13,718 INFO L514 BasicCegarLoop]: 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] [2021-11-25 17:56:13,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-25 17:56:13,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:56:13,945 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:56:13,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:56:13,946 INFO L85 PathProgramCache]: Analyzing trace with hash -864038739, now seen corresponding path program 1 times [2021-11-25 17:56:13,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:56:13,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617552881] [2021-11-25 17:56:13,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:56:13,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:56:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:56:15,607 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:56:15,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617552881] [2021-11-25 17:56:15,607 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2021-11-25 17:56:15,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522189904] [2021-11-25 17:56:15,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:56:15,608 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:56:15,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:56:15,613 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:56:15,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 17:56:22,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:56:22,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 20434 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-25 17:56:22,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:56:23,431 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2021-11-25 17:56:23,431 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:56:23,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522189904] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:56:23,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:56:23,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:56:23,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451980267] [2021-11-25 17:56:23,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:56:23,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:56:23,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:56:23,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:56:23,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:56:23,436 INFO L87 Difference]: Start difference. First operand 71477 states and 106949 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) [2021-11-25 17:56:25,691 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:56:28,602 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 17:56:30,036 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:56:34,528 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:56:38,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:56:43,700 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:56:48,531 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:56:50,574 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:56:57,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:56:58,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:56:58,924 INFO L93 Difference]: Finished difference Result 115686 states and 174018 transitions. [2021-11-25 17:56:58,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:56:58,931 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 [2021-11-25 17:56:58,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:57:00,022 INFO L225 Difference]: With dead ends: 115686 [2021-11-25 17:57:00,022 INFO L226 Difference]: Without dead ends: 79524 [2021-11-25 17:57:00,290 INFO L932 BasicCegarLoop]: 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 [2021-11-25 17:57:00,292 INFO L933 BasicCegarLoop]: 10853 mSDtfsCounter, 1327 mSDsluCounter, 10041 mSDsCounter, 0 mSdLazyCounter, 1783 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1789 SdHoareTripleChecker+Valid, 20110 SdHoareTripleChecker+Invalid, 1792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1783 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.7s IncrementalHoareTripleChecker+Time [2021-11-25 17:57:00,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1789 Valid, 20110 Invalid, 1792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1783 Invalid, 8 Unknown, 0 Unchecked, 32.7s Time] [2021-11-25 17:57:00,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79524 states. [2021-11-25 17:57:05,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79524 to 71487. [2021-11-25 17:57:05,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71487 states, 45290 states have (on average 1.330271583130934) internal successors, (60248), 46283 states have internal predecessors, (60248), 23316 states have call successors, (23316), 2890 states have call predecessors, (23316), 2880 states have return successors, (23399), 23207 states have call predecessors, (23399), 23315 states have call successors, (23399) [2021-11-25 17:57:05,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71487 states to 71487 states and 106963 transitions. [2021-11-25 17:57:05,879 INFO L78 Accepts]: Start accepts. Automaton has 71487 states and 106963 transitions. Word has length 575 [2021-11-25 17:57:05,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:57:05,883 INFO L470 AbstractCegarLoop]: Abstraction has 71487 states and 106963 transitions. [2021-11-25 17:57:05,883 INFO L471 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) [2021-11-25 17:57:05,883 INFO L276 IsEmpty]: Start isEmpty. Operand 71487 states and 106963 transitions. [2021-11-25 17:57:06,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2021-11-25 17:57:06,702 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:57:06,703 INFO L514 BasicCegarLoop]: 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] [2021-11-25 17:57:06,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 17:57:06,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-25 17:57:06,904 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:57:06,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:57:06,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1857453454, now seen corresponding path program 1 times [2021-11-25 17:57:06,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:57:06,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742700615] [2021-11-25 17:57:06,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:57:06,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:57:07,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:57:08,242 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:57:08,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742700615] [2021-11-25 17:57:08,242 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2021-11-25 17:57:08,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710268138] [2021-11-25 17:57:08,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:57:08,243 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:57:08,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:57:08,245 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:57:08,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 17:57:15,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:57:15,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 20723 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 17:57:15,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:57:17,098 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2021-11-25 17:57:17,098 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:57:17,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1710268138] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:57:17,098 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:57:17,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:57:17,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313155274] [2021-11-25 17:57:17,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:57:17,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:57:17,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:57:17,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:57:17,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:57:17,102 INFO L87 Difference]: Start difference. First operand 71487 states and 106963 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) [2021-11-25 17:57:19,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:57:22,128 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 17:57:25,523 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:57:27,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:57:33,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:57:38,875 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:57:40,950 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:57:44,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:57:49,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:57:54,884 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:57:56,933 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:58:01,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:58:03,341 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:58:05,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:58:05,135 INFO L93 Difference]: Finished difference Result 166891 states and 249663 transitions. [2021-11-25 17:58:05,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:58:05,136 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 [2021-11-25 17:58:05,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:58:06,168 INFO L225 Difference]: With dead ends: 166891 [2021-11-25 17:58:06,169 INFO L226 Difference]: Without dead ends: 95433 [2021-11-25 17:58:06,552 INFO L932 BasicCegarLoop]: 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 [2021-11-25 17:58:06,553 INFO L933 BasicCegarLoop]: 16866 mSDtfsCounter, 9291 mSDsluCounter, 9565 mSDsCounter, 0 mSdLazyCounter, 2250 mSolverCounterSat, 0 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9297 SdHoareTripleChecker+Valid, 25643 SdHoareTripleChecker+Invalid, 2261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2250 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.3s IncrementalHoareTripleChecker+Time [2021-11-25 17:58:06,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9297 Valid, 25643 Invalid, 2261 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2250 Invalid, 11 Unknown, 0 Unchecked, 44.3s Time] [2021-11-25 17:58:06,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95433 states. [2021-11-25 17:58:12,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95433 to 95354. [2021-11-25 17:58:12,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95354 states, 60394 states have (on average 1.3299334370964002) internal successors, (80320), 61720 states have internal predecessors, (80320), 31102 states have call successors, (31102), 3868 states have call predecessors, (31102), 3857 states have return successors, (31219), 30957 states have call predecessors, (31219), 31101 states have call successors, (31219) [2021-11-25 17:58:13,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95354 states to 95354 states and 142641 transitions. [2021-11-25 17:58:13,915 INFO L78 Accepts]: Start accepts. Automaton has 95354 states and 142641 transitions. Word has length 609 [2021-11-25 17:58:13,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:58:13,915 INFO L470 AbstractCegarLoop]: Abstraction has 95354 states and 142641 transitions. [2021-11-25 17:58:13,916 INFO L471 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) [2021-11-25 17:58:13,916 INFO L276 IsEmpty]: Start isEmpty. Operand 95354 states and 142641 transitions. [2021-11-25 17:58:14,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 690 [2021-11-25 17:58:14,215 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:58:14,216 INFO L514 BasicCegarLoop]: 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] [2021-11-25 17:58:14,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-25 17:58:14,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-25 17:58:14,417 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:58:14,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:58:14,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1371593347, now seen corresponding path program 1 times [2021-11-25 17:58:14,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:58:14,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109411647] [2021-11-25 17:58:14,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:58:14,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:58:15,639 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 17:58:15,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [279063955] [2021-11-25 17:58:15,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:58:15,640 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:58:15,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:58:15,641 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:58:15,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-25 17:58:22,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:58:23,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 21094 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 17:58:23,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:58:26,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1171 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1171 trivial. 0 not checked. [2021-11-25 17:58:26,159 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:58:26,160 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:58:26,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109411647] [2021-11-25 17:58:26,160 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 17:58:26,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279063955] [2021-11-25 17:58:26,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279063955] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:58:26,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:58:26,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 17:58:26,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964188425] [2021-11-25 17:58:26,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:58:26,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:58:26,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:58:26,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:58:26,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:58:26,163 INFO L87 Difference]: Start difference. First operand 95354 states and 142641 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) [2021-11-25 17:58:28,403 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:58:32,292 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:58:34,963 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:58:40,480 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:58:42,529 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:58:46,668 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:58:50,933 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:58:54,908 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 17:58:58,272 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:59:00,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:59:04,933 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:59:06,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:59:06,352 INFO L93 Difference]: Finished difference Result 143143 states and 214117 transitions. [2021-11-25 17:59:06,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:59:06,353 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 689 [2021-11-25 17:59:06,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:59:07,697 INFO L225 Difference]: With dead ends: 143143 [2021-11-25 17:59:07,697 INFO L226 Difference]: Without dead ends: 143138 [2021-11-25 17:59:07,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 688 GetRequests, 687 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:59:07,784 INFO L933 BasicCegarLoop]: 10841 mSDtfsCounter, 9013 mSDsluCounter, 9549 mSDsCounter, 0 mSdLazyCounter, 1577 mSolverCounterSat, 0 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9017 SdHoareTripleChecker+Valid, 19602 SdHoareTripleChecker+Invalid, 1585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1577 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.6s IncrementalHoareTripleChecker+Time [2021-11-25 17:59:07,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9017 Valid, 19602 Invalid, 1585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1577 Invalid, 8 Unknown, 0 Unchecked, 36.6s Time] [2021-11-25 17:59:07,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143138 states. [2021-11-25 17:59:18,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143138 to 143115. [2021-11-25 17:59:18,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143115 states, 90653 states have (on average 1.3301710919660683) internal successors, (120584), 92646 states have internal predecessors, (120584), 46662 states have call successors, (46662), 5814 states have call predecessors, (46662), 5799 states have return successors, (46839), 46443 states have call predecessors, (46839), 46661 states have call successors, (46839) [2021-11-25 17:59:20,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143115 states to 143115 states and 214085 transitions. [2021-11-25 17:59:20,409 INFO L78 Accepts]: Start accepts. Automaton has 143115 states and 214085 transitions. Word has length 689 [2021-11-25 17:59:20,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:59:20,410 INFO L470 AbstractCegarLoop]: Abstraction has 143115 states and 214085 transitions. [2021-11-25 17:59:20,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-11-25 17:59:20,411 INFO L276 IsEmpty]: Start isEmpty. Operand 143115 states and 214085 transitions. [2021-11-25 17:59:20,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1133 [2021-11-25 17:59:20,813 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:59:20,814 INFO L514 BasicCegarLoop]: trace histogram [31, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 14, 14, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2021-11-25 17:59:20,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-25 17:59:21,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:59:21,015 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:59:21,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:59:21,016 INFO L85 PathProgramCache]: Analyzing trace with hash 146127824, now seen corresponding path program 1 times [2021-11-25 17:59:21,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:59:21,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889911003] [2021-11-25 17:59:21,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:59:21,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:59:21,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:59:22,857 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:59:22,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889911003] [2021-11-25 17:59:22,858 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2021-11-25 17:59:22,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333688999] [2021-11-25 17:59:22,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:59:22,858 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:59:22,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:59:22,860 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:59:22,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93f3dba-47da-4d7c-a43c-43bffdf8408f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process