./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26732850-1b76-4fef-8465-b3567d8ed3e3/bin/utaipan-G1rejxKTta/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26732850-1b76-4fef-8465-b3567d8ed3e3/bin/utaipan-G1rejxKTta/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26732850-1b76-4fef-8465-b3567d8ed3e3/bin/utaipan-G1rejxKTta/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26732850-1b76-4fef-8465-b3567d8ed3e3/bin/utaipan-G1rejxKTta/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26732850-1b76-4fef-8465-b3567d8ed3e3/bin/utaipan-G1rejxKTta/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26732850-1b76-4fef-8465-b3567d8ed3e3/bin/utaipan-G1rejxKTta --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 796dd9af134a9ffa7d65525922d125c3e75a459db15e4643a4f13ca47d95e4ce --- 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-dbf71c6-m [2022-10-17 17:38:26,718 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:38:26,721 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:38:26,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:38:26,777 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:38:26,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:38:26,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:38:26,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:38:26,792 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:38:26,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:38:26,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:38:26,802 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:38:26,802 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:38:26,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:38:26,807 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:38:26,809 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:38:26,811 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:38:26,813 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:38:26,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:38:26,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:38:26,828 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:38:26,829 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:38:26,834 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:38:26,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:38:26,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:38:26,847 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:38:26,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:38:26,849 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:38:26,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:38:26,851 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:38:26,852 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:38:26,853 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:38:26,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:38:26,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:38:26,858 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:38:26,859 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:38:26,860 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:38:26,860 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:38:26,860 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:38:26,861 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:38:26,862 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:38:26,863 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26732850-1b76-4fef-8465-b3567d8ed3e3/bin/utaipan-G1rejxKTta/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-10-17 17:38:26,908 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:38:26,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:38:26,909 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 17:38:26,909 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 17:38:26,910 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:38:26,911 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 17:38:26,911 INFO L138 SettingsManager]: * User list type=DISABLED [2022-10-17 17:38:26,911 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-10-17 17:38:26,912 INFO L138 SettingsManager]: * Explicit value domain=true [2022-10-17 17:38:26,912 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-10-17 17:38:26,913 INFO L138 SettingsManager]: * Octagon Domain=false [2022-10-17 17:38:26,913 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-10-17 17:38:26,913 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-10-17 17:38:26,914 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-10-17 17:38:26,914 INFO L138 SettingsManager]: * Interval Domain=false [2022-10-17 17:38:26,914 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-10-17 17:38:26,914 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-10-17 17:38:26,915 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-10-17 17:38:26,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:38:26,916 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:38:26,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:38:26,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:38:26,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:38:26,918 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:38:26,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:38:26,919 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:38:26,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:38:26,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:38:26,919 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 17:38:26,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:38:26,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:38:26,921 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-10-17 17:38:26,921 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:38:26,921 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:38:26,921 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-10-17 17:38:26,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:38:26,922 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:38:26,922 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-10-17 17:38:26,922 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_26732850-1b76-4fef-8465-b3567d8ed3e3/bin/utaipan-G1rejxKTta/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26732850-1b76-4fef-8465-b3567d8ed3e3/bin/utaipan-G1rejxKTta Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 796dd9af134a9ffa7d65525922d125c3e75a459db15e4643a4f13ca47d95e4ce [2022-10-17 17:38:27,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:38:27,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:38:27,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:38:27,298 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:38:27,299 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:38:27,300 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26732850-1b76-4fef-8465-b3567d8ed3e3/bin/utaipan-G1rejxKTta/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2022-10-17 17:38:27,381 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26732850-1b76-4fef-8465-b3567d8ed3e3/bin/utaipan-G1rejxKTta/data/6002ff1e1/07a5c151d9324caa8614c262b2f64810/FLAGd090825b4 [2022-10-17 17:38:28,279 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:38:28,281 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26732850-1b76-4fef-8465-b3567d8ed3e3/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2022-10-17 17:38:28,332 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26732850-1b76-4fef-8465-b3567d8ed3e3/bin/utaipan-G1rejxKTta/data/6002ff1e1/07a5c151d9324caa8614c262b2f64810/FLAGd090825b4 [2022-10-17 17:38:28,716 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26732850-1b76-4fef-8465-b3567d8ed3e3/bin/utaipan-G1rejxKTta/data/6002ff1e1/07a5c151d9324caa8614c262b2f64810 [2022-10-17 17:38:28,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:38:28,722 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:38:28,726 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:38:28,726 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:38:28,730 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:38:28,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:38:28" (1/1) ... [2022-10-17 17:38:28,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9376645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:38:28, skipping insertion in model container [2022-10-17 17:38:28,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:38:28" (1/1) ... [2022-10-17 17:38:28,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:38:28,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:38:31,150 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_26732850-1b76-4fef-8465-b3567d8ed3e3/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i[263179,263192] [2022-10-17 17:38:31,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:38:31,275 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:38:31,656 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_26732850-1b76-4fef-8465-b3567d8ed3e3/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i[263179,263192] [2022-10-17 17:38:31,678 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:38:31,880 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:38:31,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:38:31 WrapperNode [2022-10-17 17:38:31,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:38:31,883 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:38:31,883 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:38:31,883 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:38:31,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:38:31" (1/1) ... [2022-10-17 17:38:32,012 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:38:31" (1/1) ... [2022-10-17 17:38:32,239 INFO L138 Inliner]: procedures = 262, calls = 1347, calls flagged for inlining = 121, calls inlined = 116, statements flattened = 3538 [2022-10-17 17:38:32,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:38:32,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:38:32,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:38:32,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:38:32,252 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:38:31" (1/1) ... [2022-10-17 17:38:32,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:38:31" (1/1) ... [2022-10-17 17:38:32,279 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:38:31" (1/1) ... [2022-10-17 17:38:32,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:38:31" (1/1) ... [2022-10-17 17:38:32,413 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:38:31" (1/1) ... [2022-10-17 17:38:32,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:38:31" (1/1) ... [2022-10-17 17:38:32,480 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:38:31" (1/1) ... [2022-10-17 17:38:32,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:38:31" (1/1) ... [2022-10-17 17:38:32,550 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:38:32,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:38:32,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:38:32,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:38:32,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:38:31" (1/1) ... [2022-10-17 17:38:32,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:38:32,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26732850-1b76-4fef-8465-b3567d8ed3e3/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:38:32,591 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26732850-1b76-4fef-8465-b3567d8ed3e3/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 17:38:32,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26732850-1b76-4fef-8465-b3567d8ed3e3/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 17:38:32,640 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2022-10-17 17:38:32,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2022-10-17 17:38:32,640 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-10-17 17:38:32,641 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-10-17 17:38:32,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 17:38:32,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 17:38:32,641 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-10-17 17:38:32,641 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-10-17 17:38:32,641 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2022-10-17 17:38:32,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2022-10-17 17:38:32,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 17:38:32,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 17:38:32,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-10-17 17:38:32,642 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-10-17 17:38:32,642 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset_after_host_error [2022-10-17 17:38:32,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset_after_host_error [2022-10-17 17:38:32,643 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-10-17 17:38:32,643 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-10-17 17:38:32,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-10-17 17:38:32,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-10-17 17:38:32,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 17:38:32,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 17:38:32,644 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-10-17 17:38:32,644 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-10-17 17:38:32,644 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2022-10-17 17:38:32,644 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2022-10-17 17:38:32,644 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-17 17:38:32,644 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-17 17:38:32,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-17 17:38:32,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-17 17:38:32,645 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-10-17 17:38:32,645 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-10-17 17:38:32,645 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-10-17 17:38:32,645 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-10-17 17:38:32,646 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2022-10-17 17:38:32,646 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2022-10-17 17:38:32,646 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-10-17 17:38:32,646 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-10-17 17:38:32,646 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-10-17 17:38:32,646 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-10-17 17:38:32,646 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2022-10-17 17:38:32,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2022-10-17 17:38:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-10-17 17:38:32,647 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-10-17 17:38:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 17:38:32,647 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 17:38:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-10-17 17:38:32,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-10-17 17:38:32,649 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-10-17 17:38:32,650 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-10-17 17:38:32,650 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-10-17 17:38:32,650 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-10-17 17:38:32,650 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2022-10-17 17:38:32,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2022-10-17 17:38:32,651 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2022-10-17 17:38:32,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2022-10-17 17:38:32,651 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2022-10-17 17:38:32,651 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2022-10-17 17:38:32,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 17:38:32,652 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-10-17 17:38:32,653 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-10-17 17:38:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-10-17 17:38:32,653 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-10-17 17:38:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2022-10-17 17:38:32,653 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2022-10-17 17:38:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 17:38:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-10-17 17:38:32,654 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-10-17 17:38:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-10-17 17:38:32,654 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-10-17 17:38:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-10-17 17:38:32,655 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-10-17 17:38:32,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-10-17 17:38:32,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-10-17 17:38:32,656 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2022-10-17 17:38:32,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2022-10-17 17:38:32,656 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-10-17 17:38:32,656 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-10-17 17:38:32,656 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2022-10-17 17:38:32,657 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2022-10-17 17:38:32,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 17:38:32,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 17:38:32,658 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2022-10-17 17:38:32,658 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2022-10-17 17:38:32,658 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-17 17:38:32,658 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-17 17:38:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-10-17 17:38:32,659 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-10-17 17:38:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-10-17 17:38:32,660 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-10-17 17:38:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 17:38:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-10-17 17:38:32,661 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-10-17 17:38:32,661 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-10-17 17:38:32,661 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-10-17 17:38:32,661 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2022-10-17 17:38:32,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2022-10-17 17:38:32,662 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2022-10-17 17:38:32,662 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2022-10-17 17:38:32,662 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2022-10-17 17:38:32,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2022-10-17 17:38:32,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 17:38:32,663 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioctl [2022-10-17 17:38:32,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioctl [2022-10-17 17:38:32,663 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-10-17 17:38:32,664 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-10-17 17:38:32,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 17:38:32,664 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-10-17 17:38:32,664 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-10-17 17:38:32,665 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-10-17 17:38:32,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-10-17 17:38:32,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-17 17:38:32,668 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-17 17:38:32,669 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-10-17 17:38:32,669 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-10-17 17:38:32,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-10-17 17:38:32,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-10-17 17:38:32,672 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-10-17 17:38:32,672 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-10-17 17:38:32,672 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-10-17 17:38:32,678 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-10-17 17:38:32,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 17:38:32,678 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-10-17 17:38:32,678 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-10-17 17:38:32,679 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-10-17 17:38:32,679 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-10-17 17:38:32,679 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-10-17 17:38:32,679 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-10-17 17:38:32,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-17 17:38:32,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-17 17:38:32,679 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2022-10-17 17:38:32,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2022-10-17 17:38:32,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-10-17 17:38:32,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-10-17 17:38:32,680 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2022-10-17 17:38:32,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2022-10-17 17:38:32,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 17:38:32,680 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2022-10-17 17:38:32,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2022-10-17 17:38:32,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-10-17 17:38:32,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-10-17 17:38:32,681 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2022-10-17 17:38:32,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2022-10-17 17:38:32,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:38:32,681 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-10-17 17:38:32,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-10-17 17:38:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 17:38:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-10-17 17:38:32,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-10-17 17:38:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-10-17 17:38:32,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-10-17 17:38:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2022-10-17 17:38:32,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2022-10-17 17:38:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-10-17 17:38:32,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-10-17 17:38:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2022-10-17 17:38:32,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2022-10-17 17:38:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-10-17 17:38:32,683 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-10-17 17:38:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-10-17 17:38:32,684 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-10-17 17:38:32,684 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2022-10-17 17:38:32,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2022-10-17 17:38:32,684 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-10-17 17:38:32,684 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-10-17 17:38:32,684 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2022-10-17 17:38:32,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2022-10-17 17:38:32,685 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-10-17 17:38:32,685 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-10-17 17:38:32,685 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_change_mtu [2022-10-17 17:38:32,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_change_mtu [2022-10-17 17:38:32,685 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-10-17 17:38:32,685 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-10-17 17:38:32,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:38:32,686 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2022-10-17 17:38:32,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2022-10-17 17:38:32,686 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2022-10-17 17:38:32,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2022-10-17 17:38:32,686 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-10-17 17:38:32,686 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-10-17 17:38:32,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:38:32,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:38:33,576 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:38:33,583 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:38:34,786 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 17:38:38,503 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:38:40,380 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:38:40,381 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 17:38:40,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:38:40 BoogieIcfgContainer [2022-10-17 17:38:40,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:38:40,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 17:38:40,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 17:38:40,396 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 17:38:40,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 05:38:28" (1/3) ... [2022-10-17 17:38:40,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@332320dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:38:40, skipping insertion in model container [2022-10-17 17:38:40,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:38:31" (2/3) ... [2022-10-17 17:38:40,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@332320dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:38:40, skipping insertion in model container [2022-10-17 17:38:40,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:38:40" (3/3) ... [2022-10-17 17:38:40,405 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2022-10-17 17:38:40,425 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 17:38:40,425 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 17:38:40,527 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 17:38:40,534 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;@3fc2b806, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 17:38:40,534 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 17:38:40,543 INFO L276 IsEmpty]: Start isEmpty. Operand has 1110 states, 664 states have (on average 1.3132530120481927) internal successors, (872), 697 states have internal predecessors, (872), 364 states have call successors, (364), 83 states have call predecessors, (364), 82 states have return successors, (356), 356 states have call predecessors, (356), 356 states have call successors, (356) [2022-10-17 17:38:40,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-10-17 17:38:40,570 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:38:40,570 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2022-10-17 17:38:40,571 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:38:40,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:38:40,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1709922983, now seen corresponding path program 1 times [2022-10-17 17:38:40,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:38:40,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760040090] [2022-10-17 17:38:40,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:38:40,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:38:41,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:38:41,816 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-10-17 17:38:41,817 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:38:41,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760040090] [2022-10-17 17:38:41,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760040090] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:38:41,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:38:41,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 17:38:41,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019995116] [2022-10-17 17:38:41,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:38:41,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 17:38:41,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:38:41,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 17:38:41,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 17:38:41,860 INFO L87 Difference]: Start difference. First operand has 1110 states, 664 states have (on average 1.3132530120481927) internal successors, (872), 697 states have internal predecessors, (872), 364 states have call successors, (364), 83 states have call predecessors, (364), 82 states have return successors, (356), 356 states have call predecessors, (356), 356 states have call successors, (356) Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-17 17:38:45,515 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 [] [2022-10-17 17:38:48,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 17:38:49,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:38:49,458 INFO L93 Difference]: Finished difference Result 3253 states and 4730 transitions. [2022-10-17 17:38:49,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 17:38:49,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 93 [2022-10-17 17:38:49,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:38:49,516 INFO L225 Difference]: With dead ends: 3253 [2022-10-17 17:38:49,517 INFO L226 Difference]: Without dead ends: 2133 [2022-10-17 17:38:49,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-17 17:38:49,546 INFO L413 NwaCegarLoop]: 1754 mSDtfsCounter, 1507 mSDsluCounter, 5393 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 6649 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-10-17 17:38:49,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1511 Valid, 6649 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 696 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2022-10-17 17:38:49,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2133 states. [2022-10-17 17:38:49,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2133 to 2119. [2022-10-17 17:38:49,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2119 states, 1273 states have (on average 1.2985074626865671) internal successors, (1653), 1322 states have internal predecessors, (1653), 685 states have call successors, (685), 162 states have call predecessors, (685), 160 states have return successors, (686), 677 states have call predecessors, (686), 684 states have call successors, (686) [2022-10-17 17:38:49,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2119 states to 2119 states and 3024 transitions. [2022-10-17 17:38:49,922 INFO L78 Accepts]: Start accepts. Automaton has 2119 states and 3024 transitions. Word has length 93 [2022-10-17 17:38:49,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:38:49,924 INFO L495 AbstractCegarLoop]: Abstraction has 2119 states and 3024 transitions. [2022-10-17 17:38:49,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-17 17:38:49,927 INFO L276 IsEmpty]: Start isEmpty. Operand 2119 states and 3024 transitions. [2022-10-17 17:38:49,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-10-17 17:38:49,940 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:38:49,941 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2022-10-17 17:38:49,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 17:38:49,942 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:38:49,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:38:49,943 INFO L85 PathProgramCache]: Analyzing trace with hash -916219498, now seen corresponding path program 1 times [2022-10-17 17:38:49,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:38:49,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123212746] [2022-10-17 17:38:49,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:38:49,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:38:50,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:38:50,484 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-10-17 17:38:50,485 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:38:50,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123212746] [2022-10-17 17:38:50,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123212746] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:38:50,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:38:50,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 17:38:50,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033002898] [2022-10-17 17:38:50,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:38:50,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 17:38:50,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:38:50,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 17:38:50,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 17:38:50,495 INFO L87 Difference]: Start difference. First operand 2119 states and 3024 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-17 17:38:53,855 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 [] [2022-10-17 17:38:55,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:38:55,258 INFO L93 Difference]: Finished difference Result 5526 states and 7856 transitions. [2022-10-17 17:38:55,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 17:38:55,259 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 94 [2022-10-17 17:38:55,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:38:55,299 INFO L225 Difference]: With dead ends: 5526 [2022-10-17 17:38:55,299 INFO L226 Difference]: Without dead ends: 3944 [2022-10-17 17:38:55,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-17 17:38:55,312 INFO L413 NwaCegarLoop]: 1720 mSDtfsCounter, 1288 mSDsluCounter, 5297 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1292 SdHoareTripleChecker+Valid, 6523 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-10-17 17:38:55,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1292 Valid, 6523 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 691 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-10-17 17:38:55,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3944 states. [2022-10-17 17:38:55,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3944 to 3922. [2022-10-17 17:38:55,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3922 states, 2369 states have (on average 1.3022372308991135) internal successors, (3085), 2461 states have internal predecessors, (3085), 1248 states have call successors, (1248), 308 states have call predecessors, (1248), 304 states have return successors, (1253), 1231 states have call predecessors, (1253), 1247 states have call successors, (1253) [2022-10-17 17:38:55,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3922 states to 3922 states and 5586 transitions. [2022-10-17 17:38:55,614 INFO L78 Accepts]: Start accepts. Automaton has 3922 states and 5586 transitions. Word has length 94 [2022-10-17 17:38:55,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:38:55,615 INFO L495 AbstractCegarLoop]: Abstraction has 3922 states and 5586 transitions. [2022-10-17 17:38:55,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-17 17:38:55,615 INFO L276 IsEmpty]: Start isEmpty. Operand 3922 states and 5586 transitions. [2022-10-17 17:38:55,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-10-17 17:38:55,621 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:38:55,621 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2022-10-17 17:38:55,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 17:38:55,622 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:38:55,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:38:55,623 INFO L85 PathProgramCache]: Analyzing trace with hash 825855155, now seen corresponding path program 1 times [2022-10-17 17:38:55,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:38:55,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190284804] [2022-10-17 17:38:55,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:38:55,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:38:55,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:38:56,072 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-10-17 17:38:56,073 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:38:56,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190284804] [2022-10-17 17:38:56,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190284804] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:38:56,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:38:56,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 17:38:56,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926353269] [2022-10-17 17:38:56,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:38:56,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 17:38:56,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:38:56,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 17:38:56,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 17:38:56,079 INFO L87 Difference]: Start difference. First operand 3922 states and 5586 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11)