./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-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7e5652ce767ff2e1bcbd3f583f8e33ee2c54a0e67349cc7d1c1f8d74e875d01c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:01:36,576 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:01:36,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:01:36,633 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:01:36,634 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:01:36,640 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:01:36,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:01:36,647 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:01:36,650 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:01:36,656 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:01:36,657 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:01:36,660 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:01:36,660 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:01:36,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:01:36,665 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:01:36,667 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:01:36,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:01:36,670 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:01:36,671 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:01:36,681 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:01:36,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:01:36,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:01:36,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:01:36,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:01:36,701 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:01:36,702 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:01:36,702 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:01:36,704 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:01:36,705 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:01:36,706 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:01:36,706 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:01:36,707 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:01:36,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:01:36,710 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:01:36,713 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:01:36,713 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:01:36,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:01:36,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:01:36,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:01:36,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:01:36,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:01:36,717 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:01:36,760 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:01:36,761 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:01:36,761 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:01:36,762 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:01:36,763 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:01:36,763 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:01:36,763 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:01:36,763 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:01:36,764 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:01:36,764 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:01:36,765 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:01:36,765 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:01:36,765 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:01:36,766 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:01:36,766 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:01:36,766 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:01:36,766 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:01:36,767 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:01:36,767 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:01:36,768 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:01:36,768 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:01:36,768 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:01:36,768 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:01:36,769 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:01:36,769 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:01:36,769 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:01:36,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:01:36,770 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:01:36,770 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:01:36,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:01:36,771 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:01:36,771 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:01:36,771 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:01:36,771 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:01:36,772 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:01:36,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:01:36,772 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:01:36,772 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:01:36,773 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e5652ce767ff2e1bcbd3f583f8e33ee2c54a0e67349cc7d1c1f8d74e875d01c [2022-11-03 02:01:37,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:01:37,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:01:37,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:01:37,064 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:01:37,065 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:01:37,066 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i [2022-11-03 02:01:37,146 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/data/f467145de/a07dae9915664a2fad8bac19f933c1aa/FLAGdfb9f2910 [2022-11-03 02:01:38,261 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:01:38,262 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i [2022-11-03 02:01:38,348 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/data/f467145de/a07dae9915664a2fad8bac19f933c1aa/FLAGdfb9f2910 [2022-11-03 02:01:38,455 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/data/f467145de/a07dae9915664a2fad8bac19f933c1aa [2022-11-03 02:01:38,458 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:01:38,461 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:01:38,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:01:38,465 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:01:38,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:01:38,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:01:38" (1/1) ... [2022-11-03 02:01:38,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4038dcb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:01:38, skipping insertion in model container [2022-11-03 02:01:38,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:01:38" (1/1) ... [2022-11-03 02:01:38,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:01:38,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:01:42,833 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_f594a19a-24d6-4413-b9ed-6e77f2858a9a/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i[418024,418037] [2022-11-03 02:01:42,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:01:42,963 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:01:43,628 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_f594a19a-24d6-4413-b9ed-6e77f2858a9a/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i[418024,418037] [2022-11-03 02:01:43,637 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:01:43,979 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:01:43,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:01:43 WrapperNode [2022-11-03 02:01:43,980 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:01:43,981 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:01:43,981 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:01:43,981 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:01:43,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:01:43" (1/1) ... [2022-11-03 02:01:44,143 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:01:43" (1/1) ... [2022-11-03 02:01:44,479 INFO L138 Inliner]: procedures = 464, calls = 3161, calls flagged for inlining = 208, calls inlined = 193, statements flattened = 7498 [2022-11-03 02:01:44,480 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:01:44,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:01:44,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:01:44,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:01:44,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:01:43" (1/1) ... [2022-11-03 02:01:44,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:01:43" (1/1) ... [2022-11-03 02:01:44,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:01:43" (1/1) ... [2022-11-03 02:01:44,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:01:43" (1/1) ... [2022-11-03 02:01:44,712 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:01:43" (1/1) ... [2022-11-03 02:01:44,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:01:43" (1/1) ... [2022-11-03 02:01:44,784 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:01:43" (1/1) ... [2022-11-03 02:01:44,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:01:43" (1/1) ... [2022-11-03 02:01:44,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:01:44,857 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:01:44,857 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:01:44,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:01:44,858 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:01:43" (1/1) ... [2022-11-03 02:01:44,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:01:44,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:01:44,892 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:01:44,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:01:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-03 02:01:44,939 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-03 02:01:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-03 02:01:44,939 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-03 02:01:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_read_phy_reg [2022-11-03 02:01:44,939 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_read_phy_reg [2022-11-03 02:01:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:01:44,939 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:01:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_force_ps [2022-11-03 02:01:44,940 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_force_ps [2022-11-03 02:01:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-03 02:01:44,940 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-03 02:01:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 02:01:44,940 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 02:01:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-03 02:01:44,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-03 02:01:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:01:44,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:01:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_del_timer [2022-11-03 02:01:44,941 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_del_timer [2022-11-03 02:01:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-11-03 02:01:44,941 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-11-03 02:01:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_io_error_detected [2022-11-03 02:01:44,941 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_io_error_detected [2022-11-03 02:01:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_change_mtu [2022-11-03 02:01:44,942 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_change_mtu [2022-11-03 02:01:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-11-03 02:01:44,942 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-11-03 02:01:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-03 02:01:44,942 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-03 02:01:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 02:01:44,942 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 02:01:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-03 02:01:44,943 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-03 02:01:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 02:01:44,943 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 02:01:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_disable [2022-11-03 02:01:44,944 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_disable [2022-11-03 02:01:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_restart_autoneg [2022-11-03 02:01:44,944 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_restart_autoneg [2022-11-03 02:01:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-03 02:01:44,944 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-03 02:01:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_tpd [2022-11-03 02:01:44,944 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_tpd [2022-11-03 02:01:44,945 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 02:01:44,945 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 02:01:44,945 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-03 02:01:44,945 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-03 02:01:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 02:01:44,947 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 02:01:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 02:01:44,947 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 02:01:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_free_irq [2022-11-03 02:01:44,947 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_free_irq [2022-11-03 02:01:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-03 02:01:44,947 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-03 02:01:44,948 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-03 02:01:44,948 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-03 02:01:44,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:01:44,949 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-11-03 02:01:44,949 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-11-03 02:01:44,949 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_shutdown [2022-11-03 02:01:44,949 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_shutdown [2022-11-03 02:01:44,949 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-03 02:01:44,950 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-03 02:01:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_check_eeprom_exist [2022-11-03 02:01:44,950 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_check_eeprom_exist [2022-11-03 02:01:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-03 02:01:44,950 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-03 02:01:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 02:01:44,950 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 02:01:44,951 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 02:01:44,951 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 02:01:44,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 02:01:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_hw_set_mac_addr [2022-11-03 02:01:44,952 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_hw_set_mac_addr [2022-11-03 02:01:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 02:01:44,952 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 02:01:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 02:01:44,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 02:01:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_tx_buffer [2022-11-03 02:01:44,952 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_tx_buffer [2022-11-03 02:01:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 02:01:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reset_task [2022-11-03 02:01:44,954 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reset_task [2022-11-03 02:01:44,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:01:44,954 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 02:01:44,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 02:01:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-11-03 02:01:44,955 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-11-03 02:01:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 02:01:44,955 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 02:01:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-03 02:01:44,956 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-03 02:01:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-11-03 02:01:44,956 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-11-03 02:01:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 02:01:44,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 02:01:44,957 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_reset [2022-11-03 02:01:44,957 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_reset [2022-11-03 02:01:44,957 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-03 02:01:44,957 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-03 02:01:44,957 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 02:01:44,958 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 02:01:44,958 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_down [2022-11-03 02:01:44,958 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_down [2022-11-03 02:01:44,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-03 02:01:44,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-03 02:01:44,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:01:44,959 INFO L130 BoogieDeclarations]: Found specification of procedure __atl1e_vlan_mode [2022-11-03 02:01:44,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __atl1e_vlan_mode [2022-11-03 02:01:44,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:01:44,962 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-03 02:01:44,963 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-03 02:01:44,963 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_fix_features [2022-11-03 02:01:44,963 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_fix_features [2022-11-03 02:01:44,965 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 02:01:44,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 02:01:44,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:01:44,966 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 02:01:44,971 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-03 02:01:44,972 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-03 02:01:44,972 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_set_multi [2022-11-03 02:01:44,972 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_set_multi [2022-11-03 02:01:44,972 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-03 02:01:44,972 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-03 02:01:44,972 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_remove [2022-11-03 02:01:44,972 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_remove [2022-11-03 02:01:44,972 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-03 02:01:44,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-03 02:01:44,973 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-03 02:01:44,973 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-03 02:01:44,973 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 02:01:44,973 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 02:01:44,973 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_free_ring_resources [2022-11-03 02:01:44,973 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_free_ring_resources [2022-11-03 02:01:44,973 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_stats [2022-11-03 02:01:44,973 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_stats [2022-11-03 02:01:44,974 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-03 02:01:44,974 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-03 02:01:44,974 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-03 02:01:44,975 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-03 02:01:44,975 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 02:01:44,975 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 02:01:44,975 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_validate_option [2022-11-03 02:01:44,976 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_validate_option [2022-11-03 02:01:44,976 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-11-03 02:01:44,976 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-11-03 02:01:44,976 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-11-03 02:01:44,976 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-11-03 02:01:44,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:01:44,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:01:44,976 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-03 02:01:44,976 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-03 02:01:44,977 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-03 02:01:44,977 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-03 02:01:44,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 02:01:44,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 02:01:44,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:01:44,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:01:44,977 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-03 02:01:44,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-03 02:01:44,978 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-03 02:01:44,978 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-03 02:01:44,978 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-03 02:01:44,978 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-03 02:01:44,978 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_clean_tx_ring [2022-11-03 02:01:44,978 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_clean_tx_ring [2022-11-03 02:01:44,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_7 [2022-11-03 02:01:44,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_7 [2022-11-03 02:01:44,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 02:01:44,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 02:01:44,979 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-03 02:01:44,979 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-03 02:01:44,979 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-03 02:01:44,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-03 02:01:44,979 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-03 02:01:44,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-03 02:01:44,980 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_set_mac_addr [2022-11-03 02:01:44,980 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_set_mac_addr [2022-11-03 02:01:44,980 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-03 02:01:44,980 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-03 02:01:44,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 02:01:44,980 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 02:01:44,982 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_resume [2022-11-03 02:01:44,982 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_resume [2022-11-03 02:01:44,982 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 02:01:44,982 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 02:01:44,983 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 02:01:44,983 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 02:01:44,983 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-03 02:01:44,983 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-03 02:01:44,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_4 [2022-11-03 02:01:44,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_4 [2022-11-03 02:01:44,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:01:44,983 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 02:01:44,983 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 02:01:44,984 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-03 02:01:44,984 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-03 02:01:44,984 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 02:01:44,984 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 02:01:44,984 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_tx_timeout [2022-11-03 02:01:44,984 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_tx_timeout [2022-11-03 02:01:44,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:01:44,984 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_vlan_mode [2022-11-03 02:01:44,984 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_vlan_mode [2022-11-03 02:01:44,985 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_write_phy_reg [2022-11-03 02:01:44,985 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_write_phy_reg [2022-11-03 02:01:44,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-03 02:01:44,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-03 02:01:44,985 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-03 02:01:44,985 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-03 02:01:44,985 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_up [2022-11-03 02:01:44,985 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_up [2022-11-03 02:01:44,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:01:44,985 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_3 [2022-11-03 02:01:44,986 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_3 [2022-11-03 02:01:44,986 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_phy_commit [2022-11-03 02:01:44,986 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_phy_commit [2022-11-03 02:01:44,986 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 02:01:44,986 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 02:01:44,986 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-03 02:01:44,986 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-03 02:01:44,986 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-03 02:01:44,986 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-03 02:01:44,987 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-03 02:01:44,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-03 02:01:44,987 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 02:01:44,987 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 02:01:44,987 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-03 02:01:44,987 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-03 02:01:44,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 02:01:44,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 02:01:44,987 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_ioctl [2022-11-03 02:01:44,988 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_ioctl [2022-11-03 02:01:44,988 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_link_chg_task [2022-11-03 02:01:44,988 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_link_chg_task [2022-11-03 02:01:44,989 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reinit_locked [2022-11-03 02:01:44,993 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reinit_locked [2022-11-03 02:01:44,993 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_phy_init [2022-11-03 02:01:44,993 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_phy_init [2022-11-03 02:01:44,993 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_intr [2022-11-03 02:01:44,993 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_intr [2022-11-03 02:01:44,993 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 02:01:44,993 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 02:01:44,994 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-03 02:01:44,994 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-03 02:01:44,994 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 02:01:44,995 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 02:01:44,995 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_4 [2022-11-03 02:01:44,995 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_4 [2022-11-03 02:01:44,995 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-03 02:01:44,995 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-03 02:01:44,995 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_enable [2022-11-03 02:01:44,995 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_enable [2022-11-03 02:01:44,995 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 02:01:44,995 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 02:01:44,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:01:44,996 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_io_slot_reset [2022-11-03 02:01:44,996 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_io_slot_reset [2022-11-03 02:01:44,996 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_netpoll [2022-11-03 02:01:44,996 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_netpoll [2022-11-03 02:01:44,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:01:44,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:01:44,996 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_read_eeprom [2022-11-03 02:01:44,996 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_read_eeprom [2022-11-03 02:01:44,996 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_suspend [2022-11-03 02:01:44,997 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_suspend [2022-11-03 02:01:44,997 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 02:01:44,997 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 02:01:44,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-03 02:01:44,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-03 02:01:44,997 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-03 02:01:44,997 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-03 02:01:44,997 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_set_features [2022-11-03 02:01:44,997 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_set_features [2022-11-03 02:01:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-03 02:01:44,998 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-03 02:01:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_request_irq [2022-11-03 02:01:44,998 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_request_irq [2022-11-03 02:01:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-03 02:01:44,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-03 02:01:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-11-03 02:01:44,998 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-11-03 02:01:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_6 [2022-11-03 02:01:44,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_6 [2022-11-03 02:01:44,999 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-03 02:01:44,999 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-03 02:01:44,999 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-03 02:01:44,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-03 02:01:44,999 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_eeprom_len [2022-11-03 02:01:44,999 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_eeprom_len [2022-11-03 02:01:44,999 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-03 02:01:44,999 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-03 02:01:44,999 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-03 02:01:44,999 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-03 02:01:45,000 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reset_hw [2022-11-03 02:01:45,000 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reset_hw [2022-11-03 02:01:45,000 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-03 02:01:45,000 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-03 02:01:45,000 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 02:01:45,000 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 02:01:45,000 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-03 02:01:45,000 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-03 02:01:45,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:01:45,001 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-11-03 02:01:45,001 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-11-03 02:01:45,001 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_regs_len [2022-11-03 02:01:45,001 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_regs_len [2022-11-03 02:01:45,001 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_clean_rx_ring [2022-11-03 02:01:45,001 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_clean_rx_ring [2022-11-03 02:01:46,294 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:01:46,301 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:01:46,707 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:01:58,051 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:02:00,294 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:02:00,294 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 02:02:00,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:02:00 BoogieIcfgContainer [2022-11-03 02:02:00,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:02:00,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:02:00,303 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:02:00,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:02:00,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:01:38" (1/3) ... [2022-11-03 02:02:00,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@383c7238 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:02:00, skipping insertion in model container [2022-11-03 02:02:00,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:01:43" (2/3) ... [2022-11-03 02:02:00,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@383c7238 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:02:00, skipping insertion in model container [2022-11-03 02:02:00,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:02:00" (3/3) ... [2022-11-03 02:02:00,310 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i [2022-11-03 02:02:00,332 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:02:00,332 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:02:00,432 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:02:00,439 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2d22c9b8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:02:00,439 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:02:00,452 INFO L276 IsEmpty]: Start isEmpty. Operand has 2199 states, 1341 states have (on average 1.319910514541387) internal successors, (1770), 1379 states have internal predecessors, (1770), 710 states have call successors, (710), 147 states have call predecessors, (710), 146 states have return successors, (699), 695 states have call predecessors, (699), 699 states have call successors, (699) [2022-11-03 02:02:00,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-03 02:02:00,484 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:02:00,485 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 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, 1, 1, 1] [2022-11-03 02:02:00,486 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:02:00,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:02:00,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1856985650, now seen corresponding path program 1 times [2022-11-03 02:02:00,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:02:00,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384820064] [2022-11-03 02:02:00,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:02:00,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:02:01,069 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:02:01,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1352298705] [2022-11-03 02:02:01,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:02:01,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:02:01,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:02:01,082 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:02:01,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:02:02,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:02:02,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 3279 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 02:02:02,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:02:02,940 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-11-03 02:02:02,940 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:02:02,941 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:02:02,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384820064] [2022-11-03 02:02:02,941 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:02:02,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352298705] [2022-11-03 02:02:02,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352298705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:02:02,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:02:02,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:02:02,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619853205] [2022-11-03 02:02:02,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:02:02,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:02:02,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:02:02,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:02:02,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:02:02,993 INFO L87 Difference]: Start difference. First operand has 2199 states, 1341 states have (on average 1.319910514541387) internal successors, (1770), 1379 states have internal predecessors, (1770), 710 states have call successors, (710), 147 states have call predecessors, (710), 146 states have return successors, (699), 695 states have call predecessors, (699), 699 states have call successors, (699) Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:02:07,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:10,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:12,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:02:12,317 INFO L93 Difference]: Finished difference Result 5942 states and 8611 transitions. [2022-11-03 02:02:12,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:02:12,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 135 [2022-11-03 02:02:12,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:02:12,365 INFO L225 Difference]: With dead ends: 5942 [2022-11-03 02:02:12,366 INFO L226 Difference]: Without dead ends: 3729 [2022-11-03 02:02:12,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:02:12,386 INFO L413 NwaCegarLoop]: 3327 mSDtfsCounter, 2281 mSDsluCounter, 3012 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 40 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2281 SdHoareTripleChecker+Valid, 6057 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:02:12,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2281 Valid, 6057 Invalid, 754 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [40 Valid, 712 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2022-11-03 02:02:12,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3729 states. [2022-11-03 02:02:12,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3729 to 3711. [2022-11-03 02:02:12,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3711 states, 2297 states have (on average 1.3086634740966478) internal successors, (3006), 2346 states have internal predecessors, (3006), 1162 states have call successors, (1162), 253 states have call predecessors, (1162), 251 states have return successors, (1161), 1146 states have call predecessors, (1161), 1161 states have call successors, (1161) [2022-11-03 02:02:12,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3711 states to 3711 states and 5329 transitions. [2022-11-03 02:02:12,712 INFO L78 Accepts]: Start accepts. Automaton has 3711 states and 5329 transitions. Word has length 135 [2022-11-03 02:02:12,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:02:12,713 INFO L495 AbstractCegarLoop]: Abstraction has 3711 states and 5329 transitions. [2022-11-03 02:02:12,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:02:12,714 INFO L276 IsEmpty]: Start isEmpty. Operand 3711 states and 5329 transitions. [2022-11-03 02:02:12,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-11-03 02:02:12,727 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:02:12,727 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:02:12,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:02:12,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-03 02:02:12,951 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:02:12,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:02:12,951 INFO L85 PathProgramCache]: Analyzing trace with hash -65251513, now seen corresponding path program 1 times [2022-11-03 02:02:12,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:02:12,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404470443] [2022-11-03 02:02:12,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:02:12,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:02:13,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:02:13,678 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2022-11-03 02:02:13,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:02:13,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404470443] [2022-11-03 02:02:13,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404470443] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:02:13,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:02:13,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:02:13,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804685597] [2022-11-03 02:02:13,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:02:13,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:02:13,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:02:13,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:02:13,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:02:13,682 INFO L87 Difference]: Start difference. First operand 3711 states and 5329 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 02:02:16,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:19,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:22,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:24,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:02:24,854 INFO L93 Difference]: Finished difference Result 10448 states and 14961 transitions. [2022-11-03 02:02:24,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:02:24,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 197 [2022-11-03 02:02:24,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:02:24,907 INFO L225 Difference]: With dead ends: 10448 [2022-11-03 02:02:24,907 INFO L226 Difference]: Without dead ends: 6762 [2022-11-03 02:02:24,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:02:24,931 INFO L413 NwaCegarLoop]: 3813 mSDtfsCounter, 2591 mSDsluCounter, 3062 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2594 SdHoareTripleChecker+Valid, 6595 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:02:24,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2594 Valid, 6595 Invalid, 672 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 668 Invalid, 2 Unknown, 0 Unchecked, 10.7s Time] [2022-11-03 02:02:24,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6762 states. [2022-11-03 02:02:25,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6762 to 6757. [2022-11-03 02:02:25,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6757 states, 4192 states have (on average 1.3096374045801527) internal successors, (5490), 4287 states have internal predecessors, (5490), 2086 states have call successors, (2086), 482 states have call predecessors, (2086), 478 states have return successors, (2085), 2053 states have call predecessors, (2085), 2085 states have call successors, (2085) [2022-11-03 02:02:25,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6757 states to 6757 states and 9661 transitions. [2022-11-03 02:02:25,323 INFO L78 Accepts]: Start accepts. Automaton has 6757 states and 9661 transitions. Word has length 197 [2022-11-03 02:02:25,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:02:25,324 INFO L495 AbstractCegarLoop]: Abstraction has 6757 states and 9661 transitions. [2022-11-03 02:02:25,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 02:02:25,325 INFO L276 IsEmpty]: Start isEmpty. Operand 6757 states and 9661 transitions. [2022-11-03 02:02:25,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-11-03 02:02:25,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:02:25,346 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 6, 6, 6, 6, 6, 6, 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] [2022-11-03 02:02:25,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:02:25,347 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:02:25,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:02:25,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1199714904, now seen corresponding path program 1 times [2022-11-03 02:02:25,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:02:25,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67074724] [2022-11-03 02:02:25,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:02:25,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:02:25,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:02:26,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1024 trivial. 0 not checked. [2022-11-03 02:02:26,092 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:02:26,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67074724] [2022-11-03 02:02:26,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67074724] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:02:26,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:02:26,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:02:26,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693677962] [2022-11-03 02:02:26,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:02:26,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:02:26,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:02:26,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:02:26,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:02:26,104 INFO L87 Difference]: Start difference. First operand 6757 states and 9661 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-03 02:02:27,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:31,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:35,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:36,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:02:36,998 INFO L93 Difference]: Finished difference Result 12611 states and 18070 transitions. [2022-11-03 02:02:36,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:02:37,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 278 [2022-11-03 02:02:37,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:02:37,107 INFO L225 Difference]: With dead ends: 12611 [2022-11-03 02:02:37,107 INFO L226 Difference]: Without dead ends: 12608 [2022-11-03 02:02:37,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:02:37,124 INFO L413 NwaCegarLoop]: 4009 mSDtfsCounter, 2526 mSDsluCounter, 3055 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2529 SdHoareTripleChecker+Valid, 6784 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:02:37,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2529 Valid, 6784 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 643 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2022-11-03 02:02:37,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12608 states. [2022-11-03 02:02:37,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12608 to 12532. [2022-11-03 02:02:37,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12532 states, 7833 states have (on average 1.3146942423081833) internal successors, (10298), 7994 states have internal predecessors, (10298), 3802 states have call successors, (3802), 904 states have call predecessors, (3802), 896 states have return successors, (3835), 3749 states have call predecessors, (3835), 3801 states have call successors, (3835) [2022-11-03 02:02:37,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12532 states to 12532 states and 17935 transitions. [2022-11-03 02:02:37,947 INFO L78 Accepts]: Start accepts. Automaton has 12532 states and 17935 transitions. Word has length 278 [2022-11-03 02:02:37,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:02:37,952 INFO L495 AbstractCegarLoop]: Abstraction has 12532 states and 17935 transitions. [2022-11-03 02:02:37,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-03 02:02:37,954 INFO L276 IsEmpty]: Start isEmpty. Operand 12532 states and 17935 transitions. [2022-11-03 02:02:37,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-11-03 02:02:37,980 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:02:37,980 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 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] [2022-11-03 02:02:37,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:02:37,981 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:02:37,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:02:37,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1347463842, now seen corresponding path program 1 times [2022-11-03 02:02:37,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:02:37,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784318797] [2022-11-03 02:02:37,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:02:37,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:02:38,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:02:38,813 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2022-11-03 02:02:38,813 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:02:38,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784318797] [2022-11-03 02:02:38,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784318797] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:02:38,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:02:38,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:02:38,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712729803] [2022-11-03 02:02:38,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:02:38,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:02:38,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:02:38,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:02:38,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:02:38,817 INFO L87 Difference]: Start difference. First operand 12532 states and 17935 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-03 02:02:40,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:46,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:48,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:51,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:02:53,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:02:53,119 INFO L93 Difference]: Finished difference Result 34605 states and 49402 transitions. [2022-11-03 02:02:53,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:02:53,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 288 [2022-11-03 02:02:53,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:02:53,258 INFO L225 Difference]: With dead ends: 34605 [2022-11-03 02:02:53,258 INFO L226 Difference]: Without dead ends: 22098 [2022-11-03 02:02:53,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:02:53,332 INFO L413 NwaCegarLoop]: 3986 mSDtfsCounter, 2406 mSDsluCounter, 3084 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2409 SdHoareTripleChecker+Valid, 6789 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:02:53,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2409 Valid, 6789 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 693 Invalid, 4 Unknown, 0 Unchecked, 13.4s Time] [2022-11-03 02:02:53,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22098 states. [2022-11-03 02:02:54,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22098 to 22094. [2022-11-03 02:02:54,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22094 states, 13836 states have (on average 1.3133853714946517) internal successors, (18172), 14087 states have internal predecessors, (18172), 6626 states have call successors, (6626), 1643 states have call predecessors, (6626), 1631 states have return successors, (6693), 6551 states have call predecessors, (6693), 6625 states have call successors, (6693) [2022-11-03 02:02:54,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22094 states to 22094 states and 31491 transitions. [2022-11-03 02:02:54,669 INFO L78 Accepts]: Start accepts. Automaton has 22094 states and 31491 transitions. Word has length 288 [2022-11-03 02:02:54,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:02:54,670 INFO L495 AbstractCegarLoop]: Abstraction has 22094 states and 31491 transitions. [2022-11-03 02:02:54,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-03 02:02:54,670 INFO L276 IsEmpty]: Start isEmpty. Operand 22094 states and 31491 transitions. [2022-11-03 02:02:54,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2022-11-03 02:02:54,724 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:02:54,724 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:02:54,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:02:54,725 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:02:54,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:02:54,725 INFO L85 PathProgramCache]: Analyzing trace with hash -2084465140, now seen corresponding path program 1 times [2022-11-03 02:02:54,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:02:54,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235433573] [2022-11-03 02:02:54,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:02:54,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:02:55,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:02:55,613 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2022-11-03 02:02:55,614 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:02:55,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235433573] [2022-11-03 02:02:55,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235433573] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:02:55,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:02:55,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:02:55,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374950286] [2022-11-03 02:02:55,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:02:55,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:02:55,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:02:55,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:02:55,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:02:55,618 INFO L87 Difference]: Start difference. First operand 22094 states and 31491 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-03 02:02:57,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:00,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:04,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:07,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:09,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:03:09,159 INFO L93 Difference]: Finished difference Result 66089 states and 94194 transitions. [2022-11-03 02:03:09,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:03:09,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 315 [2022-11-03 02:03:09,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:03:09,489 INFO L225 Difference]: With dead ends: 66089 [2022-11-03 02:03:09,490 INFO L226 Difference]: Without dead ends: 44020 [2022-11-03 02:03:09,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:03:09,622 INFO L413 NwaCegarLoop]: 4035 mSDtfsCounter, 3008 mSDsluCounter, 3082 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3008 SdHoareTripleChecker+Valid, 6831 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:03:09,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3008 Valid, 6831 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 654 Invalid, 1 Unknown, 0 Unchecked, 12.1s Time] [2022-11-03 02:03:09,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44020 states. [2022-11-03 02:03:12,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44020 to 43996. [2022-11-03 02:03:12,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43996 states, 27552 states have (on average 1.3137340301974447) internal successors, (36196), 28067 states have internal predecessors, (36196), 13188 states have call successors, (13188), 3278 states have call predecessors, (13188), 3255 states have return successors, (13323), 13026 states have call predecessors, (13323), 13187 states have call successors, (13323) [2022-11-03 02:03:12,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43996 states to 43996 states and 62707 transitions. [2022-11-03 02:03:12,511 INFO L78 Accepts]: Start accepts. Automaton has 43996 states and 62707 transitions. Word has length 315 [2022-11-03 02:03:12,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:03:12,511 INFO L495 AbstractCegarLoop]: Abstraction has 43996 states and 62707 transitions. [2022-11-03 02:03:12,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-03 02:03:12,512 INFO L276 IsEmpty]: Start isEmpty. Operand 43996 states and 62707 transitions. [2022-11-03 02:03:12,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2022-11-03 02:03:12,568 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:03:12,569 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 6, 6, 6, 6, 6, 6, 3, 3, 3, 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] [2022-11-03 02:03:12,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:03:12,569 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:03:12,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:03:12,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1543408399, now seen corresponding path program 1 times [2022-11-03 02:03:12,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:03:12,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747501071] [2022-11-03 02:03:12,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:03:12,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:03:13,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:03:14,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1046 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1046 trivial. 0 not checked. [2022-11-03 02:03:14,440 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:03:14,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747501071] [2022-11-03 02:03:14,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747501071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:03:14,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:03:14,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:03:14,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426002541] [2022-11-03 02:03:14,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:03:14,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:03:14,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:03:14,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:03:14,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:03:14,444 INFO L87 Difference]: Start difference. First operand 43996 states and 62707 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-03 02:03:16,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:19,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:22,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:26,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:29,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:03:29,315 INFO L93 Difference]: Finished difference Result 65787 states and 93824 transitions. [2022-11-03 02:03:29,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:03:29,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 369 [2022-11-03 02:03:29,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:03:29,802 INFO L225 Difference]: With dead ends: 65787 [2022-11-03 02:03:29,802 INFO L226 Difference]: Without dead ends: 65784 [2022-11-03 02:03:29,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:03:29,838 INFO L413 NwaCegarLoop]: 3515 mSDtfsCounter, 2591 mSDsluCounter, 3053 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2600 SdHoareTripleChecker+Valid, 6289 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:03:29,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2600 Valid, 6289 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 589 Invalid, 4 Unknown, 0 Unchecked, 13.2s Time] [2022-11-03 02:03:29,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65784 states. [2022-11-03 02:03:33,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65784 to 65054. [2022-11-03 02:03:33,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65054 states, 40813 states have (on average 1.312890500575797) internal successors, (53583), 41533 states have internal predecessors, (53583), 19414 states have call successors, (19414), 4861 states have call predecessors, (19414), 4826 states have return successors, (19745), 19191 states have call predecessors, (19745), 19413 states have call successors, (19745) [2022-11-03 02:03:34,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65054 states to 65054 states and 92742 transitions. [2022-11-03 02:03:34,330 INFO L78 Accepts]: Start accepts. Automaton has 65054 states and 92742 transitions. Word has length 369 [2022-11-03 02:03:34,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:03:34,331 INFO L495 AbstractCegarLoop]: Abstraction has 65054 states and 92742 transitions. [2022-11-03 02:03:34,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-03 02:03:34,332 INFO L276 IsEmpty]: Start isEmpty. Operand 65054 states and 92742 transitions. [2022-11-03 02:03:34,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2022-11-03 02:03:34,495 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:03:34,495 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:03:34,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:03:34,496 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:03:34,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:03:34,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1113966562, now seen corresponding path program 1 times [2022-11-03 02:03:34,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:03:34,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610936154] [2022-11-03 02:03:34,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:03:34,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:03:35,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:03:35,355 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:03:35,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610936154] [2022-11-03 02:03:35,355 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-03 02:03:35,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948245244] [2022-11-03 02:03:35,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:03:35,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:03:35,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:03:35,360 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:03:35,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:03:38,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:03:38,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 7254 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 02:03:38,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:03:38,299 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2022-11-03 02:03:38,299 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:03:38,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948245244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:03:38,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:03:38,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:03:38,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422684782] [2022-11-03 02:03:38,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:03:38,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:03:38,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:03:38,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:03:38,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:03:38,303 INFO L87 Difference]: Start difference. First operand 65054 states and 92742 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 2 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-03 02:03:40,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:45,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:49,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:51,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:03:51,599 INFO L93 Difference]: Finished difference Result 130467 states and 187301 transitions. [2022-11-03 02:03:51,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:03:51,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 2 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 436 [2022-11-03 02:03:51,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:03:52,119 INFO L225 Difference]: With dead ends: 130467 [2022-11-03 02:03:52,120 INFO L226 Difference]: Without dead ends: 65438 [2022-11-03 02:03:52,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 434 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:03:52,413 INFO L413 NwaCegarLoop]: 2844 mSDtfsCounter, 11 mSDsluCounter, 3118 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 5673 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:03:52,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 5673 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 584 Invalid, 3 Unknown, 0 Unchecked, 10.9s Time] [2022-11-03 02:03:52,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65438 states. [2022-11-03 02:03:55,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65438 to 65102. [2022-11-03 02:03:55,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65102 states, 40861 states have (on average 1.312522943638188) internal successors, (53631), 41581 states have internal predecessors, (53631), 19414 states have call successors, (19414), 4861 states have call predecessors, (19414), 4826 states have return successors, (19745), 19191 states have call predecessors, (19745), 19413 states have call successors, (19745) [2022-11-03 02:03:55,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65102 states to 65102 states and 92790 transitions. [2022-11-03 02:03:55,899 INFO L78 Accepts]: Start accepts. Automaton has 65102 states and 92790 transitions. Word has length 436 [2022-11-03 02:03:55,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:03:55,900 INFO L495 AbstractCegarLoop]: Abstraction has 65102 states and 92790 transitions. [2022-11-03 02:03:55,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 2 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-03 02:03:55,900 INFO L276 IsEmpty]: Start isEmpty. Operand 65102 states and 92790 transitions. [2022-11-03 02:03:56,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2022-11-03 02:03:56,047 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:03:56,048 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:03:56,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:03:56,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-03 02:03:56,263 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:03:56,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:03:56,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1362116206, now seen corresponding path program 1 times [2022-11-03 02:03:56,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:03:56,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841750575] [2022-11-03 02:03:56,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:03:56,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:03:57,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:03:57,181 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:03:57,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841750575] [2022-11-03 02:03:57,182 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-03 02:03:57,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960663705] [2022-11-03 02:03:57,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:03:57,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:03:57,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:03:57,187 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:03:57,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:03:59,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:03:59,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 7276 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 02:03:59,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:03:59,984 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2022-11-03 02:03:59,984 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:03:59,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960663705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:03:59,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:03:59,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:03:59,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65980402] [2022-11-03 02:03:59,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:03:59,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:03:59,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:03:59,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:03:59,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:03:59,988 INFO L87 Difference]: Start difference. First operand 65102 states and 92790 transitions. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 3 states have call successors, (62), 3 states have call predecessors, (62), 3 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2022-11-03 02:04:05,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:09,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:13,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:04:13,866 INFO L93 Difference]: Finished difference Result 188530 states and 268597 transitions. [2022-11-03 02:04:13,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:04:13,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 3 states have call successors, (62), 3 states have call predecessors, (62), 3 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) Word has length 441 [2022-11-03 02:04:13,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:04:14,613 INFO L225 Difference]: With dead ends: 188530 [2022-11-03 02:04:14,613 INFO L226 Difference]: Without dead ends: 123453 [2022-11-03 02:04:14,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 439 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:04:14,907 INFO L413 NwaCegarLoop]: 3866 mSDtfsCounter, 2362 mSDsluCounter, 2943 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 48 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2363 SdHoareTripleChecker+Valid, 6530 SdHoareTripleChecker+Invalid, 804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:04:14,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2363 Valid, 6530 Invalid, 804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 754 Invalid, 2 Unknown, 0 Unchecked, 9.9s Time] [2022-11-03 02:04:15,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123453 states. [2022-11-03 02:04:20,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123453 to 123172. [2022-11-03 02:04:20,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123172 states, 77765 states have (on average 1.3117340705973124) internal successors, (102007), 79135 states have internal predecessors, (102007), 36212 states have call successors, (36212), 9277 states have call predecessors, (36212), 9194 states have return successors, (36767), 35723 states have call predecessors, (36767), 36211 states have call successors, (36767) [2022-11-03 02:04:20,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123172 states to 123172 states and 174986 transitions. [2022-11-03 02:04:20,876 INFO L78 Accepts]: Start accepts. Automaton has 123172 states and 174986 transitions. Word has length 441 [2022-11-03 02:04:20,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:04:20,877 INFO L495 AbstractCegarLoop]: Abstraction has 123172 states and 174986 transitions. [2022-11-03 02:04:20,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 3 states have call successors, (62), 3 states have call predecessors, (62), 3 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2022-11-03 02:04:20,878 INFO L276 IsEmpty]: Start isEmpty. Operand 123172 states and 174986 transitions. [2022-11-03 02:04:21,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2022-11-03 02:04:21,109 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:04:21,110 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 02:04:21,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-03 02:04:21,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-03 02:04:21,312 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:04:21,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:04:21,313 INFO L85 PathProgramCache]: Analyzing trace with hash -2072937298, now seen corresponding path program 1 times [2022-11-03 02:04:21,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:04:21,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215812912] [2022-11-03 02:04:21,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:04:21,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:04:22,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:04:22,290 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:04:22,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215812912] [2022-11-03 02:04:22,291 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-03 02:04:22,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077417524] [2022-11-03 02:04:22,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:04:22,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:04:22,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:04:22,295 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:04:22,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 02:04:24,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:04:24,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 7324 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 02:04:24,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:04:25,036 INFO L134 CoverageAnalysis]: Checked inductivity of 674 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 628 trivial. 0 not checked. [2022-11-03 02:04:25,037 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:04:25,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077417524] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:04:25,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:04:25,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:04:25,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778887284] [2022-11-03 02:04:25,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:04:25,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:04:25,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:04:25,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:04:25,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:04:25,040 INFO L87 Difference]: Start difference. First operand 123172 states and 174986 transitions. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2022-11-03 02:04:27,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:29,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:33,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:37,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:45,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:04:45,046 INFO L93 Difference]: Finished difference Result 277095 states and 394014 transitions. [2022-11-03 02:04:45,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:04:45,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 462 [2022-11-03 02:04:45,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:04:45,851 INFO L225 Difference]: With dead ends: 277095 [2022-11-03 02:04:45,852 INFO L226 Difference]: Without dead ends: 153948 [2022-11-03 02:04:46,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:04:46,242 INFO L413 NwaCegarLoop]: 4890 mSDtfsCounter, 2752 mSDsluCounter, 2598 mSDsCounter, 0 mSdLazyCounter, 890 mSolverCounterSat, 44 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2753 SdHoareTripleChecker+Valid, 7246 SdHoareTripleChecker+Invalid, 937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 890 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:04:46,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2753 Valid, 7246 Invalid, 937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 890 Invalid, 3 Unknown, 0 Unchecked, 13.5s Time] [2022-11-03 02:04:46,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153948 states. [2022-11-03 02:04:52,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153948 to 153725. [2022-11-03 02:04:52,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153725 states, 97100 states have (on average 1.3126261585993821) internal successors, (127456), 98855 states have internal predecessors, (127456), 45087 states have call successors, (45087), 11656 states have call predecessors, (45087), 11537 states have return successors, (45770), 44453 states have call predecessors, (45770), 45086 states have call successors, (45770) [2022-11-03 02:04:53,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153725 states to 153725 states and 218313 transitions. [2022-11-03 02:04:53,476 INFO L78 Accepts]: Start accepts. Automaton has 153725 states and 218313 transitions. Word has length 462 [2022-11-03 02:04:53,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:04:53,478 INFO L495 AbstractCegarLoop]: Abstraction has 153725 states and 218313 transitions. [2022-11-03 02:04:53,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2022-11-03 02:04:53,478 INFO L276 IsEmpty]: Start isEmpty. Operand 153725 states and 218313 transitions. [2022-11-03 02:04:53,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2022-11-03 02:04:53,725 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:04:53,725 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 6, 6, 6, 6, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:04:53,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 02:04:53,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f594a19a-24d6-4413-b9ed-6e77f2858a9a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:04:53,927 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:04:53,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:04:53,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1663093433, now seen corresponding path program 1 times [2022-11-03 02:04:53,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:04:53,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551443054] [2022-11-03 02:04:53,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:04:53,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:04:54,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:04:55,762 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 638 trivial. 0 not checked. [2022-11-03 02:04:55,762 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:04:55,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551443054] [2022-11-03 02:04:55,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551443054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:04:55,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:04:55,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:04:55,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932578131] [2022-11-03 02:04:55,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:04:55,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:04:55,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:04:55,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:04:55,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:04:55,766 INFO L87 Difference]: Start difference. First operand 153725 states and 218313 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 2 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2022-11-03 02:05:03,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []