./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-intel-e1000-e1000.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/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_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-intel-e1000-e1000.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/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_d31ce6d4-b3dc-4676-9310-8b4474c42827/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 80ccff96bb4644269e1ce6d8eb8d6f93859589318842a9f290454700795f0f83 --- 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 01:39:55,811 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:39:55,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:39:55,861 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:39:55,862 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:39:55,863 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:39:55,864 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:39:55,866 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:39:55,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:39:55,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:39:55,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:39:55,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:39:55,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:39:55,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:39:55,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:39:55,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:39:55,876 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:39:55,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:39:55,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:39:55,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:39:55,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:39:55,892 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:39:55,894 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:39:55,897 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:39:55,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:39:55,908 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:39:55,909 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:39:55,910 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:39:55,911 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:39:55,912 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:39:55,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:39:55,914 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:39:55,915 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:39:55,916 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:39:55,918 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:39:55,919 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:39:55,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:39:55,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:39:55,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:39:55,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:39:55,922 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:39:55,923 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 01:39:55,962 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:39:55,962 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:39:55,963 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:39:55,963 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:39:55,964 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:39:55,964 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:39:55,964 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:39:55,964 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:39:55,965 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:39:55,965 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:39:55,966 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:39:55,966 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:39:55,966 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:39:55,967 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:39:55,967 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:39:55,967 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:39:55,967 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:39:55,968 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:39:55,968 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:39:55,968 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:39:55,969 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:39:55,969 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:39:55,969 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:39:55,969 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:39:55,970 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:39:55,970 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:39:55,970 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:39:55,970 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:39:55,970 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:39:55,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:39:55,971 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:39:55,971 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:39:55,972 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:39:55,972 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:39:55,972 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:39:55,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:39:55,972 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:39:55,973 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:39:55,973 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_d31ce6d4-b3dc-4676-9310-8b4474c42827/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80ccff96bb4644269e1ce6d8eb8d6f93859589318842a9f290454700795f0f83 [2022-11-03 01:39:56,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:39:56,233 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:39:56,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:39:56,238 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:39:56,239 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:39:56,240 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-03 01:39:56,335 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/data/b0d56a62b/d2d41da0b18d4c7cb399575d55278571/FLAG81c90de24 [2022-11-03 01:39:57,654 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:39:57,655 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-03 01:39:57,758 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/data/b0d56a62b/d2d41da0b18d4c7cb399575d55278571/FLAG81c90de24 [2022-11-03 01:39:58,252 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/data/b0d56a62b/d2d41da0b18d4c7cb399575d55278571 [2022-11-03 01:39:58,254 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:39:58,256 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:39:58,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:39:58,258 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:39:58,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:39:58,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:39:58" (1/1) ... [2022-11-03 01:39:58,264 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78addb77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:39:58, skipping insertion in model container [2022-11-03 01:39:58,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:39:58" (1/1) ... [2022-11-03 01:39:58,271 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:39:58,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:40:07,331 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_d31ce6d4-b3dc-4676-9310-8b4474c42827/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-intel-e1000-e1000.cil.i[896432,896445] [2022-11-03 01:40:07,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:40:07,498 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:40:08,793 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_d31ce6d4-b3dc-4676-9310-8b4474c42827/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-intel-e1000-e1000.cil.i[896432,896445] [2022-11-03 01:40:08,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:40:09,411 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:40:09,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:40:09 WrapperNode [2022-11-03 01:40:09,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:40:09,413 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:40:09,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:40:09,413 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:40:09,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:40:09" (1/1) ... [2022-11-03 01:40:09,942 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:40:09" (1/1) ... [2022-11-03 01:40:10,755 INFO L138 Inliner]: procedures = 697, calls = 16145, calls flagged for inlining = 386, calls inlined = 339, statements flattened = 29246 [2022-11-03 01:40:10,756 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:40:10,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:40:10,757 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:40:10,757 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:40:10,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:40:09" (1/1) ... [2022-11-03 01:40:10,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:40:09" (1/1) ... [2022-11-03 01:40:10,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:40:09" (1/1) ... [2022-11-03 01:40:10,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:40:09" (1/1) ... [2022-11-03 01:40:12,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:40:09" (1/1) ... [2022-11-03 01:40:12,416 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:40:09" (1/1) ... [2022-11-03 01:40:12,645 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:40:09" (1/1) ... [2022-11-03 01:40:12,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:40:09" (1/1) ... [2022-11-03 01:40:13,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:40:13,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:40:13,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:40:13,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:40:13,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:40:09" (1/1) ... [2022-11-03 01:40:13,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:40:13,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:40:13,075 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:40:13,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:40:13,155 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-03 01:40:13,155 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-03 01:40:13,155 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_fc_after_link_up [2022-11-03 01:40:13,156 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_fc_after_link_up [2022-11-03 01:40:13,156 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-03 01:40:13,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-03 01:40:13,156 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_collision_dist [2022-11-03 01:40:13,156 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_collision_dist [2022-11-03 01:40:13,157 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_ee_clk [2022-11-03 01:40:13,157 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_ee_clk [2022-11-03 01:40:13,157 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-11-03 01:40:13,157 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-11-03 01:40:13,157 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-03 01:40:13,158 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-03 01:40:13,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 01:40:13,158 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 01:40:13,158 INFO L130 BoogieDeclarations]: Found specification of procedure reg_pattern_test [2022-11-03 01:40:13,159 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_pattern_test [2022-11-03 01:40:13,159 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-03 01:40:13,159 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-03 01:40:13,159 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 01:40:13,159 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 01:40:13,160 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-03 01:40:13,160 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-03 01:40:13,160 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_eeprom [2022-11-03 01:40:13,160 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_eeprom [2022-11-03 01:40:13,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 01:40:13,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 01:40:13,161 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_manageability [2022-11-03 01:40:13,161 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_manageability [2022-11-03 01:40:13,161 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_in_ee_bits [2022-11-03 01:40:13,161 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_in_ee_bits [2022-11-03 01:40:13,162 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down_and_stop [2022-11-03 01:40:13,162 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down_and_stop [2022-11-03 01:40:13,162 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-03 01:40:13,162 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-03 01:40:13,163 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-11-03 01:40:13,163 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-11-03 01:40:13,163 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-03 01:40:13,164 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-03 01:40:13,164 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_unmap_and_free_tx_resource [2022-11-03 01:40:13,164 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_unmap_and_free_tx_resource [2022-11-03 01:40:13,165 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-03 01:40:13,165 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-03 01:40:13,165 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_get_info [2022-11-03 01:40:13,165 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_get_info [2022-11-03 01:40:13,166 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 01:40:13,166 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 01:40:13,167 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-03 01:40:13,167 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-03 01:40:13,168 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_do_read_eeprom [2022-11-03 01:40:13,168 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_do_read_eeprom [2022-11-03 01:40:13,168 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_rctl [2022-11-03 01:40:13,168 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_rctl [2022-11-03 01:40:13,169 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-03 01:40:13,169 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-03 01:40:13,169 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set [2022-11-03 01:40:13,169 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set [2022-11-03 01:40:13,169 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2022-11-03 01:40:13,170 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2022-11-03 01:40:13,171 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 01:40:13,171 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 01:40:13,171 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset [2022-11-03 01:40:13,171 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset [2022-11-03 01:40:13,171 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2022-11-03 01:40:13,172 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2022-11-03 01:40:13,172 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_eeprom_params [2022-11-03 01:40:13,172 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_eeprom_params [2022-11-03 01:40:13,172 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2022-11-03 01:40:13,172 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2022-11-03 01:40:13,173 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-03 01:40:13,174 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-03 01:40:13,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 01:40:13,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 01:40:13,174 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 01:40:13,174 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 01:40:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-03 01:40:13,175 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-03 01:40:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 01:40:13,176 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 01:40:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 01:40:13,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 01:40:13,177 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 01:40:13,177 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 01:40:13,177 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-03 01:40:13,178 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-03 01:40:13,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 01:40:13,178 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-03 01:40:13,179 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-03 01:40:13,179 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg [2022-11-03 01:40:13,179 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg [2022-11-03 01:40:13,180 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_speed_and_duplex [2022-11-03 01:40:13,181 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_speed_and_duplex [2022-11-03 01:40:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_standby_eeprom [2022-11-03 01:40:13,181 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_standby_eeprom [2022-11-03 01:40:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_bit [2022-11-03 01:40:13,182 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_bit [2022-11-03 01:40:13,182 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-03 01:40:13,182 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-03 01:40:13,182 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure_rx [2022-11-03 01:40:13,182 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure_rx [2022-11-03 01:40:13,182 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 01:40:13,183 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 01:40:13,183 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_hw_dev [2022-11-03 01:40:13,183 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_hw_dev [2022-11-03 01:40:13,184 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_stats [2022-11-03 01:40:13,184 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_stats [2022-11-03 01:40:13,184 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_validate_option [2022-11-03 01:40:13,184 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_validate_option [2022-11-03 01:40:13,185 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 01:40:13,186 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 01:40:13,189 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 01:40:13,189 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 01:40:13,189 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link [2022-11-03 01:40:13,189 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link [2022-11-03 01:40:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_irq [2022-11-03 01:40:13,192 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_irq [2022-11-03 01:40:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 01:40:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-03 01:40:13,193 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-03 01:40:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_link [2022-11-03 01:40:13,199 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_link [2022-11-03 01:40:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_vlan_mode [2022-11-03 01:40:13,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_vlan_mode [2022-11-03 01:40:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset [2022-11-03 01:40:13,200 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset [2022-11-03 01:40:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 01:40:13,200 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 01:40:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_dsp_after_link_change [2022-11-03 01:40:13,201 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_dsp_after_link_change [2022-11-03 01:40:13,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 01:40:13,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 01:40:13,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 01:40:13,201 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_maybe_stop_tx [2022-11-03 01:40:13,201 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_maybe_stop_tx [2022-11-03 01:40:13,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 01:40:13,202 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 01:40:13,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 01:40:13,202 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shutdown [2022-11-03 01:40:13,202 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shutdown [2022-11-03 01:40:13,203 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2022-11-03 01:40:13,203 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2022-11-03 01:40:13,203 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_used [2022-11-03 01:40:13,203 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_used [2022-11-03 01:40:13,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 01:40:13,203 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 01:40:13,204 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_disable_receiver [2022-11-03 01:40:13,204 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_disable_receiver [2022-11-03 01:40:13,204 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_kill_vid [2022-11-03 01:40:13,204 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_kill_vid [2022-11-03 01:40:13,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-03 01:40:13,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-03 01:40:13,205 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_force_mac_fc [2022-11-03 01:40:13,205 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_force_mac_fc [2022-11-03 01:40:13,205 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-03 01:40:13,205 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-03 01:40:13,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 01:40:13,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 01:40:13,206 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2022-11-03 01:40:13,206 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2022-11-03 01:40:13,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 01:40:13,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 01:40:13,206 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_leave_82542_rst [2022-11-03 01:40:13,207 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_leave_82542_rst [2022-11-03 01:40:13,207 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_has_link [2022-11-03 01:40:13,207 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_has_link [2022-11-03 01:40:13,207 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-03 01:40:13,207 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-03 01:40:13,207 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 01:40:13,208 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 01:40:13,208 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2022-11-03 01:40:13,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2022-11-03 01:40:13,208 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_tx_resources [2022-11-03 01:40:13,208 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_tx_resources [2022-11-03 01:40:13,209 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-03 01:40:13,209 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-03 01:40:13,209 INFO L130 BoogieDeclarations]: Found specification of procedure pci_wake_from_d3 [2022-11-03 01:40:13,209 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_wake_from_d3 [2022-11-03 01:40:13,209 INFO L130 BoogieDeclarations]: Found specification of procedure reg_set_and_check [2022-11-03 01:40:13,209 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_set_and_check [2022-11-03 01:40:13,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 01:40:13,210 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_netpoll [2022-11-03 01:40:13,210 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_netpoll [2022-11-03 01:40:13,210 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-03 01:40:13,210 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-03 01:40:13,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:40:13,211 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-03 01:40:13,211 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-03 01:40:13,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 01:40:13,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 01:40:13,211 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 01:40:13,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 01:40:13,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 01:40:13,212 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_rx_mode [2022-11-03 01:40:13,212 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_rx_mode [2022-11-03 01:40:13,212 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 01:40:13,213 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-03 01:40:13,213 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-03 01:40:13,213 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 01:40:13,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 01:40:13,213 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_open [2022-11-03 01:40:13,213 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_open [2022-11-03 01:40:13,214 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-03 01:40:13,214 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-03 01:40:13,214 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_hw_reset [2022-11-03 01:40:13,214 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_hw_reset [2022-11-03 01:40:13,214 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_vfta [2022-11-03 01:40:13,215 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_vfta [2022-11-03 01:40:13,215 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-03 01:40:13,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-03 01:40:13,215 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_remove [2022-11-03 01:40:13,215 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_remove [2022-11-03 01:40:13,215 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_ee_bits [2022-11-03 01:40:13,216 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_ee_bits [2022-11-03 01:40:13,216 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure [2022-11-03 01:40:13,216 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure [2022-11-03 01:40:13,216 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-03 01:40:13,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-03 01:40:13,217 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-03 01:40:13,217 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-03 01:40:13,217 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 01:40:13,217 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 01:40:13,217 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_cable_length [2022-11-03 01:40:13,217 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_cable_length [2022-11-03 01:40:13,218 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-03 01:40:13,218 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-03 01:40:13,218 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_ee_clk [2022-11-03 01:40:13,218 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_ee_clk [2022-11-03 01:40:13,218 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_rx_resources [2022-11-03 01:40:13,219 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_rx_resources [2022-11-03 01:40:13,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-03 01:40:13,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-03 01:40:13,219 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_add_vid [2022-11-03 01:40:13,219 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_add_vid [2022-11-03 01:40:13,219 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2022-11-03 01:40:13,220 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2022-11-03 01:40:13,220 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2022-11-03 01:40:13,221 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2022-11-03 01:40:13,225 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-03 01:40:13,225 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-03 01:40:13,226 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_write [2022-11-03 01:40:13,226 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_write [2022-11-03 01:40:13,226 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-03 01:40:13,226 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-03 01:40:13,226 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_resume [2022-11-03 01:40:13,227 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_resume [2022-11-03 01:40:13,227 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-03 01:40:13,228 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-03 01:40:13,230 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 01:40:13,230 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 01:40:13,230 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom [2022-11-03 01:40:13,230 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom [2022-11-03 01:40:13,231 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_enter_82542_rst [2022-11-03 01:40:13,231 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_enter_82542_rst [2022-11-03 01:40:13,231 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_acquire_eeprom [2022-11-03 01:40:13,231 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_acquire_eeprom [2022-11-03 01:40:13,231 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-03 01:40:13,231 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-03 01:40:13,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:40:13,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:40:13,232 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_down_phy [2022-11-03 01:40:13,232 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_down_phy [2022-11-03 01:40:13,232 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-03 01:40:13,233 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-03 01:40:13,233 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2022-11-03 01:40:13,233 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2022-11-03 01:40:13,233 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_spi_eeprom_ready [2022-11-03 01:40:13,233 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_spi_eeprom_ready [2022-11-03 01:40:13,233 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_clear_mwi [2022-11-03 01:40:13,234 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_clear_mwi [2022-11-03 01:40:13,234 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-03 01:40:13,234 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-03 01:40:13,234 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_up_phy [2022-11-03 01:40:13,234 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_up_phy [2022-11-03 01:40:13,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 01:40:13,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 01:40:13,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 01:40:13,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 01:40:13,235 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-03 01:40:13,235 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-03 01:40:13,235 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 01:40:13,236 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 01:40:13,304 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-03 01:40:13,305 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-03 01:40:13,305 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg_ex [2022-11-03 01:40:13,305 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg_ex [2022-11-03 01:40:13,305 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-03 01:40:13,305 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-03 01:40:13,305 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-03 01:40:13,305 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-03 01:40:13,305 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-03 01:40:13,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-03 01:40:13,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-03 01:40:13,305 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_resume [2022-11-03 01:40:13,305 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_resume [2022-11-03 01:40:13,305 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-03 01:40:13,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-03 01:40:13,306 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-03 01:40:13,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-03 01:40:13,306 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_polarity [2022-11-03 01:40:13,306 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_polarity [2022-11-03 01:40:13,306 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-03 01:40:13,306 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-03 01:40:13,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 01:40:13,306 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 01:40:13,306 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-03 01:40:13,306 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-03 01:40:13,306 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_mdi_clk [2022-11-03 01:40:13,306 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_mdi_clk [2022-11-03 01:40:13,306 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_mac_to_phy [2022-11-03 01:40:13,306 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_mac_to_phy [2022-11-03 01:40:13,307 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom_len [2022-11-03 01:40:13,307 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom_len [2022-11-03 01:40:13,307 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 01:40:13,307 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 01:40:13,307 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2022-11-03 01:40:13,307 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2022-11-03 01:40:13,307 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_rx_resources [2022-11-03 01:40:13,307 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_rx_resources [2022-11-03 01:40:13,307 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-11-03 01:40:13,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-11-03 01:40:13,307 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-03 01:40:13,307 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-03 01:40:13,307 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_close [2022-11-03 01:40:13,307 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_close [2022-11-03 01:40:13,308 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset_clk_and_crs [2022-11-03 01:40:13,308 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset_clk_and_crs [2022-11-03 01:40:13,308 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-03 01:40:13,308 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-03 01:40:13,308 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 01:40:13,308 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 01:40:13,308 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-03 01:40:13,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-03 01:40:13,308 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-03 01:40:13,308 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-03 01:40:13,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 01:40:13,308 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 01:40:13,308 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 01:40:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-03 01:40:13,310 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-03 01:40:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 01:40:13,310 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 01:40:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_regs_len [2022-11-03 01:40:13,310 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_regs_len [2022-11-03 01:40:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 01:40:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-03 01:40:13,310 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-03 01:40:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-03 01:40:13,311 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-03 01:40:13,311 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2022-11-03 01:40:13,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2022-11-03 01:40:13,311 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_tx_resources [2022-11-03 01:40:13,311 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_tx_resources [2022-11-03 01:40:13,311 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_setup_autoneg [2022-11-03 01:40:13,311 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_setup_autoneg [2022-11-03 01:40:13,311 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_mng_vlan [2022-11-03 01:40:13,311 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_mng_vlan [2022-11-03 01:40:13,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 01:40:13,311 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_media_type [2022-11-03 01:40:13,311 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_media_type [2022-11-03 01:40:13,311 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_eeprom [2022-11-03 01:40:13,311 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_eeprom [2022-11-03 01:40:13,312 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_filter_on_off [2022-11-03 01:40:13,312 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_filter_on_off [2022-11-03 01:40:13,312 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-03 01:40:13,312 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-03 01:40:13,312 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_nway_reset [2022-11-03 01:40:13,312 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_nway_reset [2022-11-03 01:40:13,312 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-03 01:40:13,312 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-03 01:40:13,312 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_phy_loopback [2022-11-03 01:40:13,312 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_phy_loopback [2022-11-03 01:40:13,312 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 01:40:13,312 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 01:40:13,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-03 01:40:13,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-03 01:40:13,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 01:40:13,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 01:40:13,315 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-03 01:40:13,315 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-03 01:40:13,315 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_all_rx_rings [2022-11-03 01:40:13,315 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_all_rx_rings [2022-11-03 01:40:13,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-03 01:40:13,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-03 01:40:13,315 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_enable [2022-11-03 01:40:13,316 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_enable [2022-11-03 01:40:13,316 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_up [2022-11-03 01:40:13,316 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_up [2022-11-03 01:40:13,316 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_tx_timeout [2022-11-03 01:40:13,322 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_tx_timeout [2022-11-03 01:40:13,322 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reinit_locked [2022-11-03 01:40:13,322 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reinit_locked [2022-11-03 01:40:13,323 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_bit [2022-11-03 01:40:13,323 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_bit [2022-11-03 01:40:13,323 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_phy_reg [2022-11-03 01:40:13,323 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_phy_reg [2022-11-03 01:40:13,323 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_rx_resources [2022-11-03 01:40:13,323 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_rx_resources [2022-11-03 01:40:13,323 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_mdi_clk [2022-11-03 01:40:13,323 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_mdi_clk [2022-11-03 01:40:13,324 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-03 01:40:13,324 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-03 01:40:13,324 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-03 01:40:13,324 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-03 01:40:13,324 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 01:40:13,324 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 01:40:13,324 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_copper_link_rtl_setup [2022-11-03 01:40:13,325 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_copper_link_rtl_setup [2022-11-03 01:40:13,325 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-11-03 01:40:13,325 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-11-03 01:40:13,325 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_eeprom [2022-11-03 01:40:13,325 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_eeprom [2022-11-03 01:40:13,325 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_desc_rings [2022-11-03 01:40:13,325 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_desc_rings [2022-11-03 01:40:13,326 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_set_mwi [2022-11-03 01:40:13,326 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_set_mwi [2022-11-03 01:40:13,326 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-03 01:40:13,326 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-03 01:40:13,326 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 01:40:13,326 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 01:40:13,326 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_polarity_reversal_workaround [2022-11-03 01:40:13,326 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_polarity_reversal_workaround [2022-11-03 01:40:13,327 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-03 01:40:13,327 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-03 01:40:13,327 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-03 01:40:13,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-03 01:40:13,327 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 01:40:13,327 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 01:40:13,327 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_link_test [2022-11-03 01:40:13,327 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_link_test [2022-11-03 01:40:13,328 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_mdi_bits [2022-11-03 01:40:13,328 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_mdi_bits [2022-11-03 01:40:13,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 01:40:13,328 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_64k_bound [2022-11-03 01:40:13,328 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_64k_bound [2022-11-03 01:40:13,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 01:40:13,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 01:40:13,329 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_spd_dplx [2022-11-03 01:40:13,329 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_spd_dplx [2022-11-03 01:40:13,329 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2022-11-03 01:40:13,329 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2022-11-03 01:40:13,329 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down [2022-11-03 01:40:13,329 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down [2022-11-03 01:40:13,329 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 01:40:13,330 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 01:40:13,330 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_init_script [2022-11-03 01:40:13,330 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_init_script [2022-11-03 01:40:13,330 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-03 01:40:13,330 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-03 01:40:13,330 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-03 01:40:13,330 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-03 01:40:13,331 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_request_irq [2022-11-03 01:40:13,331 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_request_irq [2022-11-03 01:40:13,331 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-03 01:40:13,331 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-03 01:40:13,331 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_eeprom [2022-11-03 01:40:13,331 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_eeprom [2022-11-03 01:40:13,331 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw [2022-11-03 01:40:13,331 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw [2022-11-03 01:40:13,332 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_disable [2022-11-03 01:40:13,332 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_disable [2022-11-03 01:40:13,332 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-11-03 01:40:13,332 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-11-03 01:40:13,332 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-03 01:40:13,332 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-03 01:40:13,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_10 [2022-11-03 01:40:13,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_10 [2022-11-03 01:40:13,333 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_tx_ring [2022-11-03 01:40:13,333 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_tx_ring [2022-11-03 01:40:13,333 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_shutdown [2022-11-03 01:40:13,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_shutdown [2022-11-03 01:40:13,333 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_tx_resources [2022-11-03 01:40:13,333 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_tx_resources [2022-11-03 01:40:13,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 01:40:13,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 01:40:13,334 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-03 01:40:13,334 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-03 01:40:13,334 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 01:40:13,334 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 01:40:13,334 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-03 01:40:13,334 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-03 01:40:13,335 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_manageability [2022-11-03 01:40:13,339 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_manageability [2022-11-03 01:40:13,339 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-11-03 01:40:13,339 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-11-03 01:40:13,339 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-03 01:40:13,339 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-03 01:40:13,340 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_wol_exclusion [2022-11-03 01:40:13,340 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_wol_exclusion [2022-11-03 01:40:13,340 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 01:40:13,340 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 01:40:13,340 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-03 01:40:13,340 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-03 01:40:13,340 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-03 01:40:13,341 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-03 01:40:13,341 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-03 01:40:13,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:40:13,341 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-11-03 01:40:13,341 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-11-03 01:40:13,341 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_rx_ring [2022-11-03 01:40:13,341 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_rx_ring [2022-11-03 01:40:13,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 01:40:13,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 01:40:13,342 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-03 01:40:15,740 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:40:15,753 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:40:17,424 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 01:41:22,853 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:41:31,277 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:41:31,277 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-03 01:41:31,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:41:31 BoogieIcfgContainer [2022-11-03 01:41:31,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:41:31,292 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:41:31,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:41:31,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:41:31,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:39:58" (1/3) ... [2022-11-03 01:41:31,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6df3d09c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:41:31, skipping insertion in model container [2022-11-03 01:41:31,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:40:09" (2/3) ... [2022-11-03 01:41:31,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6df3d09c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:41:31, skipping insertion in model container [2022-11-03 01:41:31,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:41:31" (3/3) ... [2022-11-03 01:41:31,299 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-drivers-clk1_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-03 01:41:31,320 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:41:31,320 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 01:41:31,460 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:41:31,466 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;@79dc86aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:41:31,467 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 01:41:31,488 INFO L276 IsEmpty]: Start isEmpty. Operand has 6539 states, 4176 states have (on average 1.335727969348659) internal successors, (5578), 4282 states have internal predecessors, (5578), 2122 states have call successors, (2122), 242 states have call predecessors, (2122), 241 states have return successors, (2118), 2105 states have call predecessors, (2118), 2118 states have call successors, (2118) [2022-11-03 01:41:31,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-03 01:41:31,498 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:41:31,499 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-03 01:41:31,499 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:41:31,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:41:31,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1101434559, now seen corresponding path program 1 times [2022-11-03 01:41:31,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:41:31,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842524763] [2022-11-03 01:41:31,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:41:31,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:41:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:41:34,891 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 01:41:34,891 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:41:34,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842524763] [2022-11-03 01:41:34,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842524763] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:41:34,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:41:34,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 01:41:34,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303944077] [2022-11-03 01:41:34,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:41:34,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:41:34,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:41:34,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:41:34,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:41:34,957 INFO L87 Difference]: Start difference. First operand has 6539 states, 4176 states have (on average 1.335727969348659) internal successors, (5578), 4282 states have internal predecessors, (5578), 2122 states have call successors, (2122), 242 states have call predecessors, (2122), 241 states have return successors, (2118), 2105 states have call predecessors, (2118), 2118 states have call successors, (2118) Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:41:37,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:41:46,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:41:48,496 WARN L539 Checker$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 01:41:50,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:41:55,229 WARN L539 Checker$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 01:41:58,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:42:00,824 WARN L539 Checker$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 01:42:08,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:42:11,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:42:15,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:42:17,499 WARN L539 Checker$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 01:42:17,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:42:17,844 INFO L93 Difference]: Finished difference Result 17714 states and 26609 transitions. [2022-11-03 01:42:17,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 01:42:17,847 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 34 [2022-11-03 01:42:17,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:42:17,999 INFO L225 Difference]: With dead ends: 17714 [2022-11-03 01:42:18,000 INFO L226 Difference]: Without dead ends: 11147 [2022-11-03 01:42:18,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:42:18,086 INFO L413 NwaCegarLoop]: 10504 mSDtfsCounter, 6947 mSDsluCounter, 21070 mSDsCounter, 0 mSdLazyCounter, 2408 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6951 SdHoareTripleChecker+Valid, 29972 SdHoareTripleChecker+Invalid, 2417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2408 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.8s IncrementalHoareTripleChecker+Time [2022-11-03 01:42:18,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6951 Valid, 29972 Invalid, 2417 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2408 Invalid, 8 Unknown, 0 Unchecked, 41.8s Time] [2022-11-03 01:42:18,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11147 states. [2022-11-03 01:42:19,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11147 to 11112. [2022-11-03 01:42:19,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11112 states, 7099 states have (on average 1.332441188899845) internal successors, (9459), 7261 states have internal predecessors, (9459), 3580 states have call successors, (3580), 433 states have call predecessors, (3580), 432 states have return successors, (3580), 3562 states have call predecessors, (3580), 3578 states have call successors, (3580) [2022-11-03 01:42:19,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11112 states to 11112 states and 16619 transitions. [2022-11-03 01:42:19,576 INFO L78 Accepts]: Start accepts. Automaton has 11112 states and 16619 transitions. Word has length 34 [2022-11-03 01:42:19,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:42:19,577 INFO L495 AbstractCegarLoop]: Abstraction has 11112 states and 16619 transitions. [2022-11-03 01:42:19,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:42:19,578 INFO L276 IsEmpty]: Start isEmpty. Operand 11112 states and 16619 transitions. [2022-11-03 01:42:19,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 600 [2022-11-03 01:42:19,677 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:42:19,679 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 8, 6, 5, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:42:19,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:42:19,680 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:42:19,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:42:19,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1893971375, now seen corresponding path program 1 times [2022-11-03 01:42:19,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:42:19,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199867483] [2022-11-03 01:42:19,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:42:19,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:42:20,533 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 01:42:20,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [308440728] [2022-11-03 01:42:20,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:42:20,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:42:20,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:42:20,541 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:42:20,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 01:42:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:42:27,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 21831 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 01:42:27,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:42:27,280 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 245 proven. 0 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2022-11-03 01:42:27,280 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:42:27,281 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:42:27,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199867483] [2022-11-03 01:42:27,281 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 01:42:27,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308440728] [2022-11-03 01:42:27,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308440728] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:42:27,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:42:27,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:42:27,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126308751] [2022-11-03 01:42:27,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:42:27,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:42:27,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:42:27,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:42:27,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:42:27,285 INFO L87 Difference]: Start difference. First operand 11112 states and 16619 transitions. Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 3 states have call successors, (103), 2 states have call predecessors, (103), 2 states have return successors, (102), 3 states have call predecessors, (102), 3 states have call successors, (102) [2022-11-03 01:42:29,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:42:31,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:42:39,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:42:41,245 WARN L539 Checker$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 01:42:43,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:42:52,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:42:54,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:42:58,396 WARN L539 Checker$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 01:42:58,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:42:58,751 INFO L93 Difference]: Finished difference Result 18887 states and 28405 transitions. [2022-11-03 01:42:58,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:42:58,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 3 states have call successors, (103), 2 states have call predecessors, (103), 2 states have return successors, (102), 3 states have call predecessors, (102), 3 states have call successors, (102) Word has length 599 [2022-11-03 01:42:58,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:42:58,853 INFO L225 Difference]: With dead ends: 18887 [2022-11-03 01:42:58,854 INFO L226 Difference]: Without dead ends: 12381 [2022-11-03 01:42:58,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 598 GetRequests, 597 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 01:42:58,909 INFO L413 NwaCegarLoop]: 10128 mSDtfsCounter, 1085 mSDsluCounter, 10016 mSDsCounter, 0 mSdLazyCounter, 1746 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1549 SdHoareTripleChecker+Valid, 19345 SdHoareTripleChecker+Invalid, 1752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1746 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:42:58,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1549 Valid, 19345 Invalid, 1752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1746 Invalid, 5 Unknown, 0 Unchecked, 31.0s Time] [2022-11-03 01:42:58,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12381 states. [2022-11-03 01:42:59,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12381 to 11117. [2022-11-03 01:42:59,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11117 states, 7103 states have (on average 1.3323947627762918) internal successors, (9464), 7265 states have internal predecessors, (9464), 3581 states have call successors, (3581), 433 states have call predecessors, (3581), 432 states have return successors, (3581), 3563 states have call predecessors, (3581), 3579 states have call successors, (3581) [2022-11-03 01:42:59,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11117 states to 11117 states and 16626 transitions. [2022-11-03 01:42:59,914 INFO L78 Accepts]: Start accepts. Automaton has 11117 states and 16626 transitions. Word has length 599 [2022-11-03 01:42:59,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:42:59,921 INFO L495 AbstractCegarLoop]: Abstraction has 11117 states and 16626 transitions. [2022-11-03 01:42:59,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 3 states have call successors, (103), 2 states have call predecessors, (103), 2 states have return successors, (102), 3 states have call predecessors, (102), 3 states have call successors, (102) [2022-11-03 01:42:59,922 INFO L276 IsEmpty]: Start isEmpty. Operand 11117 states and 16626 transitions. [2022-11-03 01:42:59,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 644 [2022-11-03 01:42:59,992 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:42:59,993 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 8, 6, 5, 4, 4, 4, 4, 4, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:43:00,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 01:43:00,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:43:00,209 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:43:00,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:43:00,210 INFO L85 PathProgramCache]: Analyzing trace with hash -987409873, now seen corresponding path program 1 times [2022-11-03 01:43:00,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:43:00,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104530177] [2022-11-03 01:43:00,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:43:00,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:43:01,155 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 01:43:01,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [288583189] [2022-11-03 01:43:01,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:43:01,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:43:01,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:43:01,158 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:43:01,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 01:43:07,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:43:07,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 22307 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 01:43:07,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:43:07,894 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2022-11-03 01:43:07,895 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:43:07,895 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:43:07,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104530177] [2022-11-03 01:43:07,895 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 01:43:07,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288583189] [2022-11-03 01:43:07,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288583189] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:43:07,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:43:07,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 01:43:07,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166703377] [2022-11-03 01:43:07,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:43:07,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:43:07,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:43:07,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:43:07,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:43:07,900 INFO L87 Difference]: Start difference. First operand 11117 states and 16626 transitions. Second operand has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (106), 2 states have call predecessors, (106), 2 states have call successors, (106) [2022-11-03 01:43:10,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:43:12,713 WARN L539 Checker$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 01:43:14,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:43:22,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:43:27,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:43:29,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:43:31,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:43:33,945 WARN L539 Checker$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 01:43:37,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:43:44,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:43:48,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:43:51,201 WARN L539 Checker$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 01:43:51,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:43:51,544 INFO L93 Difference]: Finished difference Result 22954 states and 34394 transitions. [2022-11-03 01:43:51,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 01:43:51,545 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (106), 2 states have call predecessors, (106), 2 states have call successors, (106) Word has length 643 [2022-11-03 01:43:51,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:43:51,732 INFO L225 Difference]: With dead ends: 22954 [2022-11-03 01:43:51,733 INFO L226 Difference]: Without dead ends: 11851 [2022-11-03 01:43:51,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 644 GetRequests, 641 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:43:51,782 INFO L413 NwaCegarLoop]: 9417 mSDtfsCounter, 450 mSDsluCounter, 19880 mSDsCounter, 0 mSdLazyCounter, 2512 mSolverCounterSat, 113 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 27673 SdHoareTripleChecker+Invalid, 2634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 2512 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:43:51,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [600 Valid, 27673 Invalid, 2634 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [113 Valid, 2512 Invalid, 9 Unknown, 0 Unchecked, 43.1s Time] [2022-11-03 01:43:51,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11851 states. [2022-11-03 01:43:52,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11851 to 11121. [2022-11-03 01:43:52,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11121 states, 7107 states have (on average 1.3322076825664837) internal successors, (9468), 7269 states have internal predecessors, (9468), 3581 states have call successors, (3581), 433 states have call predecessors, (3581), 432 states have return successors, (3581), 3563 states have call predecessors, (3581), 3579 states have call successors, (3581) [2022-11-03 01:43:52,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11121 states to 11121 states and 16630 transitions. [2022-11-03 01:43:52,727 INFO L78 Accepts]: Start accepts. Automaton has 11121 states and 16630 transitions. Word has length 643 [2022-11-03 01:43:52,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:43:52,731 INFO L495 AbstractCegarLoop]: Abstraction has 11121 states and 16630 transitions. [2022-11-03 01:43:52,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (106), 2 states have call predecessors, (106), 2 states have call successors, (106) [2022-11-03 01:43:52,732 INFO L276 IsEmpty]: Start isEmpty. Operand 11121 states and 16630 transitions. [2022-11-03 01:43:52,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 662 [2022-11-03 01:43:52,803 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:43:52,803 INFO L195 NwaCegarLoop]: trace histogram [18, 13, 13, 8, 6, 5, 4, 4, 4, 4, 4, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:43:52,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 01:43:53,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:43:53,023 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:43:53,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:43:53,024 INFO L85 PathProgramCache]: Analyzing trace with hash -121361059, now seen corresponding path program 1 times [2022-11-03 01:43:53,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:43:53,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426989812] [2022-11-03 01:43:53,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:43:53,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:43:53,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:43:54,249 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:43:54,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426989812] [2022-11-03 01:43:54,249 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-03 01:43:54,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275729399] [2022-11-03 01:43:54,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:43:54,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:43:54,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:43:54,251 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:43:54,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 01:44:00,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:44:00,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 22566 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 01:44:00,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:44:01,040 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 175 proven. 0 refuted. 0 times theorem prover too weak. 605 trivial. 0 not checked. [2022-11-03 01:44:01,040 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:44:01,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275729399] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:44:01,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:44:01,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 01:44:01,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257418269] [2022-11-03 01:44:01,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:44:01,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:44:01,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:44:01,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:44:01,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:44:01,043 INFO L87 Difference]: Start difference. First operand 11121 states and 16630 transitions. Second operand has 4 states, 4 states have (on average 80.25) internal successors, (321), 4 states have internal predecessors, (321), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (108), 2 states have call predecessors, (108), 2 states have call successors, (108) [2022-11-03 01:44:04,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:44:12,273 WARN L539 Checker$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 01:44:14,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:44:16,540 WARN L539 Checker$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 01:44:19,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:44:26,647 WARN L539 Checker$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 01:44:29,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:44:31,249 WARN L539 Checker$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 01:44:33,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:44:36,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:44:38,300 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 01:44:38,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:44:38,602 INFO L93 Difference]: Finished difference Result 22562 states and 33777 transitions. [2022-11-03 01:44:38,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 01:44:38,603 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 80.25) internal successors, (321), 4 states have internal predecessors, (321), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (108), 2 states have call predecessors, (108), 2 states have call successors, (108) Word has length 661 [2022-11-03 01:44:38,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:44:38,669 INFO L225 Difference]: With dead ends: 22562 [2022-11-03 01:44:38,669 INFO L226 Difference]: Without dead ends: 11455 [2022-11-03 01:44:38,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 662 GetRequests, 659 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:44:38,724 INFO L413 NwaCegarLoop]: 9223 mSDtfsCounter, 329 mSDsluCounter, 19665 mSDsCounter, 0 mSdLazyCounter, 2431 mSolverCounterSat, 123 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 27290 SdHoareTripleChecker+Invalid, 2564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 2431 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:44:38,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 27290 Invalid, 2564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 2431 Invalid, 10 Unknown, 0 Unchecked, 37.1s Time] [2022-11-03 01:44:38,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11455 states. [2022-11-03 01:44:39,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11455 to 11125. [2022-11-03 01:44:39,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11125 states, 7111 states have (on average 1.3320208128252005) internal successors, (9472), 7273 states have internal predecessors, (9472), 3581 states have call successors, (3581), 433 states have call predecessors, (3581), 432 states have return successors, (3581), 3563 states have call predecessors, (3581), 3579 states have call successors, (3581) [2022-11-03 01:44:39,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11125 states to 11125 states and 16634 transitions. [2022-11-03 01:44:39,637 INFO L78 Accepts]: Start accepts. Automaton has 11125 states and 16634 transitions. Word has length 661 [2022-11-03 01:44:39,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:44:39,638 INFO L495 AbstractCegarLoop]: Abstraction has 11125 states and 16634 transitions. [2022-11-03 01:44:39,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.25) internal successors, (321), 4 states have internal predecessors, (321), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (108), 2 states have call predecessors, (108), 2 states have call successors, (108) [2022-11-03 01:44:39,638 INFO L276 IsEmpty]: Start isEmpty. Operand 11125 states and 16634 transitions. [2022-11-03 01:44:39,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 665 [2022-11-03 01:44:39,711 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:44:39,712 INFO L195 NwaCegarLoop]: trace histogram [18, 13, 13, 8, 6, 5, 4, 4, 4, 4, 4, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:44:39,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 01:44:39,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-11-03 01:44:39,925 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:44:39,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:44:39,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1058659792, now seen corresponding path program 1 times [2022-11-03 01:44:39,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:44:39,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721749763] [2022-11-03 01:44:39,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:44:39,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:44:41,178 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 01:44:41,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [288942862] [2022-11-03 01:44:41,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:44:41,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:44:41,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:44:41,180 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:44:41,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 01:44:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:44:48,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 22612 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 01:44:48,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:44:48,355 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 205 proven. 0 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2022-11-03 01:44:48,355 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:44:48,355 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:44:48,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721749763] [2022-11-03 01:44:48,356 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 01:44:48,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288942862] [2022-11-03 01:44:48,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288942862] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:44:48,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:44:48,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 01:44:48,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014729087] [2022-11-03 01:44:48,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:44:48,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:44:48,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:44:48,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:44:48,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:44:48,359 INFO L87 Difference]: Start difference. First operand 11125 states and 16634 transitions. Second operand has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (108), 2 states have call predecessors, (108), 2 states have call successors, (108) [2022-11-03 01:44:51,414 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 01:44:53,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:45:03,399 WARN L539 Checker$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 01:45:05,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:45:07,655 WARN L539 Checker$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 01:45:11,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:45:13,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:45:18,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:45:20,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:45:22,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:45:22,468 INFO L93 Difference]: Finished difference Result 22950 states and 34381 transitions. [2022-11-03 01:45:22,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 01:45:22,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (108), 2 states have call predecessors, (108), 2 states have call successors, (108) Word has length 664 [2022-11-03 01:45:22,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:45:22,534 INFO L225 Difference]: With dead ends: 22950 [2022-11-03 01:45:22,534 INFO L226 Difference]: Without dead ends: 11839 [2022-11-03 01:45:22,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 665 GetRequests, 662 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:45:22,587 INFO L413 NwaCegarLoop]: 9421 mSDtfsCounter, 333 mSDsluCounter, 20044 mSDsCounter, 0 mSdLazyCounter, 2536 mSolverCounterSat, 109 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 27823 SdHoareTripleChecker+Invalid, 2652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 2536 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.5s IncrementalHoareTripleChecker+Time [2022-11-03 01:45:22,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 27823 Invalid, 2652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 2536 Invalid, 7 Unknown, 0 Unchecked, 33.5s Time] [2022-11-03 01:45:22,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11839 states. [2022-11-03 01:45:23,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11839 to 11129. [2022-11-03 01:45:23,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11129 states, 7115 states have (on average 1.3318341531974702) internal successors, (9476), 7277 states have internal predecessors, (9476), 3581 states have call successors, (3581), 433 states have call predecessors, (3581), 432 states have return successors, (3581), 3563 states have call predecessors, (3581), 3579 states have call successors, (3581) [2022-11-03 01:45:23,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11129 states to 11129 states and 16638 transitions. [2022-11-03 01:45:23,505 INFO L78 Accepts]: Start accepts. Automaton has 11129 states and 16638 transitions. Word has length 664 [2022-11-03 01:45:23,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:45:23,506 INFO L495 AbstractCegarLoop]: Abstraction has 11129 states and 16638 transitions. [2022-11-03 01:45:23,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (108), 2 states have call predecessors, (108), 2 states have call successors, (108) [2022-11-03 01:45:23,506 INFO L276 IsEmpty]: Start isEmpty. Operand 11129 states and 16638 transitions. [2022-11-03 01:45:23,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 684 [2022-11-03 01:45:23,549 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:45:23,549 INFO L195 NwaCegarLoop]: trace histogram [18, 13, 13, 8, 7, 6, 4, 4, 4, 4, 4, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:45:23,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 01:45:23,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:45:23,765 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:45:23,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:45:23,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1988051823, now seen corresponding path program 1 times [2022-11-03 01:45:23,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:45:23,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272127052] [2022-11-03 01:45:23,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:45:23,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:45:24,961 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 01:45:24,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2057452170] [2022-11-03 01:45:24,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:45:24,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:45:24,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:45:24,963 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:45:24,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 01:45:32,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:45:32,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 22725 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 01:45:32,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:45:32,248 INFO L134 CoverageAnalysis]: Checked inductivity of 806 backedges. 205 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2022-11-03 01:45:32,248 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:45:32,249 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:45:32,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272127052] [2022-11-03 01:45:32,249 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 01:45:32,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057452170] [2022-11-03 01:45:32,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057452170] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:45:32,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:45:32,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 01:45:32,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263140430] [2022-11-03 01:45:32,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:45:32,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:45:32,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:45:32,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:45:32,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:45:32,252 INFO L87 Difference]: Start difference. First operand 11129 states and 16638 transitions. Second operand has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 2 states have call successors, (114), 2 states have call predecessors, (114), 2 states have return successors, (113), 2 states have call predecessors, (113), 2 states have call successors, (113) [2022-11-03 01:45:35,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:45:44,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:45:46,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:45:48,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:45:50,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:45:52,469 WARN L539 Checker$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 01:45:55,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:00,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:03,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:06,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:09,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:11,628 WARN L539 Checker$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 01:46:11,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:46:11,928 INFO L93 Difference]: Finished difference Result 22578 states and 33793 transitions. [2022-11-03 01:46:11,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 01:46:11,929 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 2 states have call successors, (114), 2 states have call predecessors, (114), 2 states have return successors, (113), 2 states have call predecessors, (113), 2 states have call successors, (113) Word has length 683 [2022-11-03 01:46:11,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:46:11,979 INFO L225 Difference]: With dead ends: 22578 [2022-11-03 01:46:11,979 INFO L226 Difference]: Without dead ends: 11463 [2022-11-03 01:46:12,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 684 GetRequests, 681 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:46:12,012 INFO L413 NwaCegarLoop]: 9229 mSDtfsCounter, 329 mSDsluCounter, 19667 mSDsCounter, 0 mSdLazyCounter, 2436 mSolverCounterSat, 123 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 27295 SdHoareTripleChecker+Invalid, 2569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 2436 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:46:12,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 27295 Invalid, 2569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 2436 Invalid, 10 Unknown, 0 Unchecked, 39.1s Time] [2022-11-03 01:46:12,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11463 states. [2022-11-03 01:46:12,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11463 to 11133. [2022-11-03 01:46:12,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11133 states, 7119 states have (on average 1.3316477033291192) internal successors, (9480), 7281 states have internal predecessors, (9480), 3581 states have call successors, (3581), 433 states have call predecessors, (3581), 432 states have return successors, (3581), 3563 states have call predecessors, (3581), 3579 states have call successors, (3581) [2022-11-03 01:46:12,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11133 states to 11133 states and 16642 transitions. [2022-11-03 01:46:12,897 INFO L78 Accepts]: Start accepts. Automaton has 11133 states and 16642 transitions. Word has length 683 [2022-11-03 01:46:12,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:46:12,898 INFO L495 AbstractCegarLoop]: Abstraction has 11133 states and 16642 transitions. [2022-11-03 01:46:12,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 2 states have call successors, (114), 2 states have call predecessors, (114), 2 states have return successors, (113), 2 states have call predecessors, (113), 2 states have call successors, (113) [2022-11-03 01:46:12,899 INFO L276 IsEmpty]: Start isEmpty. Operand 11133 states and 16642 transitions. [2022-11-03 01:46:12,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 691 [2022-11-03 01:46:12,940 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:46:12,941 INFO L195 NwaCegarLoop]: trace histogram [18, 13, 13, 8, 7, 6, 4, 4, 4, 4, 4, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:46:13,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-03 01:46:13,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:46:13,169 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:46:13,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:46:13,169 INFO L85 PathProgramCache]: Analyzing trace with hash -585503966, now seen corresponding path program 1 times [2022-11-03 01:46:13,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:46:13,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877599271] [2022-11-03 01:46:13,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:46:13,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:46:14,107 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 01:46:14,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [574941766] [2022-11-03 01:46:14,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:46:14,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:46:14,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:46:14,113 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:46:14,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31ce6d4-b3dc-4676-9310-8b4474c42827/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-03 01:46:21,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:46:21,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 22791 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 01:46:21,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:46:21,900 INFO L134 CoverageAnalysis]: Checked inductivity of 810 backedges. 279 proven. 5 refuted. 0 times theorem prover too weak. 526 trivial. 0 not checked. [2022-11-03 01:46:21,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:46:22,545 INFO L134 CoverageAnalysis]: Checked inductivity of 810 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 802 trivial. 0 not checked. [2022-11-03 01:46:22,545 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:46:22,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877599271] [2022-11-03 01:46:22,546 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 01:46:22,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574941766] [2022-11-03 01:46:22,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574941766] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:46:22,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2091684973] [2022-11-03 01:46:22,580 INFO L159 IcfgInterpreter]: Started Sifa with 486 locations of interest [2022-11-03 01:46:22,580 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:46:22,585 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:46:22,591 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:46:22,591 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs