./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_ec6b2c4f-b1da-4aa7-af4c-c61184e2f44e/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6b2c4f-b1da-4aa7-af4c-c61184e2f44e/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6b2c4f-b1da-4aa7-af4c-c61184e2f44e/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6b2c4f-b1da-4aa7-af4c-c61184e2f44e/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6b2c4f-b1da-4aa7-af4c-c61184e2f44e/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6b2c4f-b1da-4aa7-af4c-c61184e2f44e/bin/utaipan-g80aRyZoba --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 dc0241e7c40235715d7f33abd33c740b0c60d48c0a8a0992cf99bd2d48b4ffd0 --- 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-b5237d8 [2022-11-22 00:24:48,737 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:24:48,740 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:24:48,765 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:24:48,765 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:24:48,767 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:24:48,768 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:24:48,770 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:24:48,772 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:24:48,774 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:24:48,775 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:24:48,776 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:24:48,777 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:24:48,778 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:24:48,780 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:24:48,781 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:24:48,783 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:24:48,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:24:48,786 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:24:48,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:24:48,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:24:48,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:24:48,794 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:24:48,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:24:48,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:24:48,800 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:24:48,800 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:24:48,801 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:24:48,802 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:24:48,803 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:24:48,804 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:24:48,805 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:24:48,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:24:48,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:24:48,808 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:24:48,809 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:24:48,810 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:24:48,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:24:48,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:24:48,812 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:24:48,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:24:48,814 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6b2c4f-b1da-4aa7-af4c-c61184e2f44e/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 00:24:48,863 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:24:48,865 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:24:48,865 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:24:48,866 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:24:48,867 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:24:48,867 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:24:48,867 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:24:48,868 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:24:48,868 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:24:48,868 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:24:48,869 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:24:48,870 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:24:48,870 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:24:48,870 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:24:48,870 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:24:48,871 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:24:48,871 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:24:48,871 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:24:48,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:24:48,872 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:24:48,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:24:48,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:24:48,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:24:48,873 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:24:48,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:24:48,874 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:24:48,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:24:48,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:24:48,874 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:24:48,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:24:48,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:24:48,876 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:24:48,876 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:24:48,877 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:24:48,877 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:24:48,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:24:48,877 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:24:48,878 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:24:48,878 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_ec6b2c4f-b1da-4aa7-af4c-c61184e2f44e/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6b2c4f-b1da-4aa7-af4c-c61184e2f44e/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc0241e7c40235715d7f33abd33c740b0c60d48c0a8a0992cf99bd2d48b4ffd0 [2022-11-22 00:24:49,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:24:49,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:24:49,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:24:49,262 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:24:49,267 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:24:49,269 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6b2c4f-b1da-4aa7-af4c-c61184e2f44e/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2022-11-22 00:24:52,681 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:24:53,424 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:24:53,424 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6b2c4f-b1da-4aa7-af4c-c61184e2f44e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2022-11-22 00:24:53,472 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6b2c4f-b1da-4aa7-af4c-c61184e2f44e/bin/utaipan-g80aRyZoba/data/f0f9e9399/1fbab90a7e634726806359f44e5cff08/FLAG0f4ef24b2 [2022-11-22 00:24:53,488 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6b2c4f-b1da-4aa7-af4c-c61184e2f44e/bin/utaipan-g80aRyZoba/data/f0f9e9399/1fbab90a7e634726806359f44e5cff08 [2022-11-22 00:24:53,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:24:53,493 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:24:53,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:24:53,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:24:53,498 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:24:53,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:24:53" (1/1) ... [2022-11-22 00:24:53,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@408ceddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:24:53, skipping insertion in model container [2022-11-22 00:24:53,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:24:53" (1/1) ... [2022-11-22 00:24:53,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:24:53,697 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:24:57,007 WARN L237 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_ec6b2c4f-b1da-4aa7-af4c-c61184e2f44e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i[336326,336339] [2022-11-22 00:24:57,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:24:57,147 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:24:57,737 WARN L237 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_ec6b2c4f-b1da-4aa7-af4c-c61184e2f44e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i[336326,336339] [2022-11-22 00:24:57,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:24:57,972 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:24:57,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:24:57 WrapperNode [2022-11-22 00:24:57,972 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:24:57,974 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:24:57,974 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:24:57,975 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:24:57,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:24:57" (1/1) ... [2022-11-22 00:24:58,135 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:24:57" (1/1) ... [2022-11-22 00:24:58,485 INFO L138 Inliner]: procedures = 426, calls = 2225, calls flagged for inlining = 256, calls inlined = 245, statements flattened = 6046 [2022-11-22 00:24:58,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:24:58,486 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:24:58,487 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:24:58,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:24:58,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:24:57" (1/1) ... [2022-11-22 00:24:58,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:24:57" (1/1) ... [2022-11-22 00:24:58,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:24:57" (1/1) ... [2022-11-22 00:24:58,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:24:57" (1/1) ... [2022-11-22 00:24:58,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:24:57" (1/1) ... [2022-11-22 00:24:58,797 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:24:57" (1/1) ... [2022-11-22 00:24:58,836 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:24:57" (1/1) ... [2022-11-22 00:24:58,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:24:57" (1/1) ... [2022-11-22 00:24:58,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:24:58,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:24:58,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:24:58,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:24:58,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:24:57" (1/1) ... [2022-11-22 00:24:58,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:24:58,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6b2c4f-b1da-4aa7-af4c-c61184e2f44e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:24:58,943 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6b2c4f-b1da-4aa7-af4c-c61184e2f44e/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:24:58,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6b2c4f-b1da-4aa7-af4c-c61184e2f44e/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:24:59,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 00:24:59,002 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 00:24:59,003 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-22 00:24:59,003 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-22 00:24:59,003 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-22 00:24:59,003 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-22 00:24:59,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 00:24:59,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 00:24:59,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_open_9_6 [2022-11-22 00:24:59,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_open_9_6 [2022-11-22 00:24:59,004 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-22 00:24:59,004 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-22 00:24:59,005 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 00:24:59,005 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 00:24:59,005 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-22 00:24:59,005 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-22 00:24:59,005 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_hwaddr [2022-11-22 00:24:59,006 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_hwaddr [2022-11-22 00:24:59,006 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_regs_len [2022-11-22 00:24:59,006 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_regs_len [2022-11-22 00:24:59,006 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 00:24:59,006 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 00:24:59,007 INFO L130 BoogieDeclarations]: Found specification of procedure macb_probe [2022-11-22 00:24:59,007 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_probe [2022-11-22 00:24:59,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 00:24:59,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 00:24:59,008 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-22 00:24:59,009 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-22 00:24:59,009 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-22 00:24:59,009 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-22 00:24:59,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 00:24:59,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 00:24:59,010 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-11-22 00:24:59,010 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-11-22 00:24:59,010 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-22 00:24:59,011 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-22 00:24:59,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:24:59,011 INFO L130 BoogieDeclarations]: Found specification of procedure macb_remove [2022-11-22 00:24:59,011 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_remove [2022-11-22 00:24:59,011 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-22 00:24:59,012 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-22 00:24:59,012 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-11-22 00:24:59,012 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-11-22 00:24:59,012 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 00:24:59,012 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 00:24:59,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 00:24:59,013 INFO L130 BoogieDeclarations]: Found specification of procedure __napi_schedule [2022-11-22 00:24:59,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __napi_schedule [2022-11-22 00:24:59,013 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 00:24:59,014 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 00:24:59,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-22 00:24:59,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-22 00:24:59,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 00:24:59,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 00:24:59,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 00:24:59,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 00:24:59,015 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-22 00:24:59,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-22 00:24:59,016 INFO L130 BoogieDeclarations]: Found specification of procedure macb_free_consistent [2022-11-22 00:24:59,016 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_free_consistent [2022-11-22 00:24:59,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 00:24:59,017 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 00:24:59,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2022-11-22 00:24:59,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2022-11-22 00:24:59,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-22 00:24:59,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-22 00:24:59,018 INFO L130 BoogieDeclarations]: Found specification of procedure macb_open [2022-11-22 00:24:59,018 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_open [2022-11-22 00:24:59,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 00:24:59,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 00:24:59,018 INFO L130 BoogieDeclarations]: Found specification of procedure macb_alloc_consistent [2022-11-22 00:24:59,019 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_alloc_consistent [2022-11-22 00:24:59,020 INFO L130 BoogieDeclarations]: Found specification of procedure macb_resume [2022-11-22 00:24:59,020 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_resume [2022-11-22 00:24:59,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 00:24:59,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-22 00:24:59,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-22 00:24:59,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-22 00:24:59,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-22 00:24:59,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-22 00:24:59,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-22 00:24:59,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2022-11-22 00:24:59,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2022-11-22 00:24:59,023 INFO L130 BoogieDeclarations]: Found specification of procedure macb_is_gem [2022-11-22 00:24:59,023 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_is_gem [2022-11-22 00:24:59,024 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-22 00:24:59,024 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-22 00:24:59,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:24:59,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 00:24:59,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 00:24:59,025 INFO L130 BoogieDeclarations]: Found specification of procedure macb_rx_ring_wrap [2022-11-22 00:24:59,025 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_rx_ring_wrap [2022-11-22 00:24:59,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 00:24:59,026 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 00:24:59,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 00:24:59,026 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 00:24:59,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 00:24:59,027 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2022-11-22 00:24:59,027 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2022-11-22 00:24:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 00:24:59,028 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 00:24:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-22 00:24:59,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-22 00:24:59,029 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-22 00:24:59,029 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-22 00:24:59,029 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule_prep [2022-11-22 00:24:59,029 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule_prep [2022-11-22 00:24:59,029 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2022-11-22 00:24:59,030 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2022-11-22 00:24:59,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:24:59,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:24:59,034 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-22 00:24:59,035 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-22 00:24:59,035 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2022-11-22 00:24:59,035 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2022-11-22 00:24:59,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 00:24:59,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 00:24:59,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 00:24:59,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 00:24:59,039 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2022-11-22 00:24:59,045 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2022-11-22 00:24:59,045 INFO L130 BoogieDeclarations]: Found specification of procedure phy_find_first [2022-11-22 00:24:59,045 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_find_first [2022-11-22 00:24:59,046 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-22 00:24:59,046 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-22 00:24:59,046 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_ring_wrap [2022-11-22 00:24:59,046 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_ring_wrap [2022-11-22 00:24:59,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-22 00:24:59,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-22 00:24:59,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_17 [2022-11-22 00:24:59,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_17 [2022-11-22 00:24:59,047 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_hwaddr [2022-11-22 00:24:59,047 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_hwaddr [2022-11-22 00:24:59,047 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-22 00:24:59,048 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-22 00:24:59,048 INFO L130 BoogieDeclarations]: Found specification of procedure macb_handle_link_change [2022-11-22 00:24:59,048 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_handle_link_change [2022-11-22 00:24:59,048 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mii_init [2022-11-22 00:24:59,048 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mii_init [2022-11-22 00:24:59,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_14 [2022-11-22 00:24:59,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_14 [2022-11-22 00:24:59,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_16 [2022-11-22 00:24:59,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_16 [2022-11-22 00:24:59,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_15 [2022-11-22 00:24:59,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_15 [2022-11-22 00:24:59,049 INFO L130 BoogieDeclarations]: Found specification of procedure macb_close [2022-11-22 00:24:59,050 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_close [2022-11-22 00:24:59,050 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mdc_clk_div [2022-11-22 00:24:59,050 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mdc_clk_div [2022-11-22 00:24:59,050 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-22 00:24:59,050 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-22 00:24:59,050 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-22 00:24:59,051 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-22 00:24:59,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_19 [2022-11-22 00:24:59,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_19 [2022-11-22 00:24:59,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:24:59,051 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2022-11-22 00:24:59,051 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2022-11-22 00:24:59,052 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-22 00:24:59,052 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-22 00:24:59,052 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-22 00:24:59,052 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-22 00:24:59,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_21 [2022-11-22 00:24:59,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_21 [2022-11-22 00:24:59,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 00:24:59,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_20 [2022-11-22 00:24:59,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_20 [2022-11-22 00:24:59,053 INFO L130 BoogieDeclarations]: Found specification of procedure clk_get_rate [2022-11-22 00:24:59,053 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_get_rate [2022-11-22 00:24:59,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 00:24:59,054 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_rx_mode [2022-11-22 00:24:59,054 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_rx_mode [2022-11-22 00:24:59,054 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_desc [2022-11-22 00:24:59,054 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_desc [2022-11-22 00:24:59,054 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-22 00:24:59,054 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-22 00:24:59,055 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-22 00:24:59,055 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-22 00:24:59,055 INFO L130 BoogieDeclarations]: Found specification of procedure macb_reset_hw [2022-11-22 00:24:59,055 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_reset_hw [2022-11-22 00:24:59,055 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 00:24:59,055 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 00:24:59,056 INFO L130 BoogieDeclarations]: Found specification of procedure macb_suspend [2022-11-22 00:24:59,056 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_suspend [2022-11-22 00:24:59,056 INFO L130 BoogieDeclarations]: Found specification of procedure devm_clk_get [2022-11-22 00:24:59,056 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_clk_get [2022-11-22 00:24:59,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 00:24:59,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 00:24:59,057 INFO L130 BoogieDeclarations]: Found specification of procedure macb_dbw [2022-11-22 00:24:59,057 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_dbw [2022-11-22 00:24:59,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-22 00:24:59,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-22 00:24:59,057 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-22 00:24:59,058 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-22 00:24:59,058 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-22 00:24:59,058 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-22 00:24:59,058 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-22 00:24:59,058 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-22 00:24:59,058 INFO L130 BoogieDeclarations]: Found specification of procedure devm_pinctrl_put [2022-11-22 00:24:59,059 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_pinctrl_put [2022-11-22 00:24:59,059 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-22 00:24:59,059 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-22 00:24:59,059 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 00:24:59,059 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 00:24:59,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:24:59,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 00:24:59,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 00:24:59,060 INFO L130 BoogieDeclarations]: Found specification of procedure gem_rx_refill [2022-11-22 00:24:59,060 INFO L138 BoogieDeclarations]: Found implementation of procedure gem_rx_refill [2022-11-22 00:24:59,060 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-22 00:24:59,060 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-22 00:24:59,061 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_dma [2022-11-22 00:24:59,061 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_dma [2022-11-22 00:24:59,061 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_skb [2022-11-22 00:24:59,061 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_skb [2022-11-22 00:24:59,061 INFO L130 BoogieDeclarations]: Found specification of procedure macb_interrupt [2022-11-22 00:24:59,061 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_interrupt [2022-11-22 00:24:59,062 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-22 00:24:59,062 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-22 00:24:59,062 INFO L130 BoogieDeclarations]: Found specification of procedure __readl [2022-11-22 00:24:59,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __readl [2022-11-22 00:24:59,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 00:24:59,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 00:24:59,063 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2022-11-22 00:24:59,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2022-11-22 00:24:59,063 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-22 00:24:59,063 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-22 00:24:59,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:24:59,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 00:24:59,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 00:24:59,064 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-22 00:24:59,064 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-22 00:25:00,275 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:25:00,279 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:25:00,425 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 00:25:08,369 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 00:25:08,476 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:25:10,301 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:25:10,306 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 00:25:10,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:25:10 BoogieIcfgContainer [2022-11-22 00:25:10,316 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:25:10,320 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:25:10,320 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:25:10,324 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:25:10,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:24:53" (1/3) ... [2022-11-22 00:25:10,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e1cbcae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:25:10, skipping insertion in model container [2022-11-22 00:25:10,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:24:57" (2/3) ... [2022-11-22 00:25:10,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e1cbcae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:25:10, skipping insertion in model container [2022-11-22 00:25:10,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:25:10" (3/3) ... [2022-11-22 00:25:10,331 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2022-11-22 00:25:10,356 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:25:10,356 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 00:25:10,484 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:25:10,496 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;@883e826, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:25:10,496 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 00:25:10,510 INFO L276 IsEmpty]: Start isEmpty. Operand has 1610 states, 980 states have (on average 1.2948979591836736) internal successors, (1269), 998 states have internal predecessors, (1269), 522 states have call successors, (522), 108 states have call predecessors, (522), 107 states have return successors, (515), 510 states have call predecessors, (515), 515 states have call successors, (515) [2022-11-22 00:25:10,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-22 00:25:10,545 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:25:10,545 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:25:10,546 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:25:10,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:25:10,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1041916153, now seen corresponding path program 1 times [2022-11-22 00:25:10,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:25:10,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792303259] [2022-11-22 00:25:10,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:25:10,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:25:11,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:25:11,536 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2022-11-22 00:25:11,537 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:25:11,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792303259] [2022-11-22 00:25:11,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792303259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:25:11,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:25:11,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:25:11,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273794060] [2022-11-22 00:25:11,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:25:11,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:25:11,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:25:11,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:25:11,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:25:11,581 INFO L87 Difference]: Start difference. First operand has 1610 states, 980 states have (on average 1.2948979591836736) internal successors, (1269), 998 states have internal predecessors, (1269), 522 states have call successors, (522), 108 states have call predecessors, (522), 107 states have return successors, (515), 510 states have call predecessors, (515), 515 states have call successors, (515) Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-22 00:25:14,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:25:18,971 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 [] [2022-11-22 00:25:19,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:25:19,773 INFO L93 Difference]: Finished difference Result 4727 states and 6782 transitions. [2022-11-22 00:25:19,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:25:19,777 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 127 [2022-11-22 00:25:19,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:25:19,820 INFO L225 Difference]: With dead ends: 4727 [2022-11-22 00:25:19,820 INFO L226 Difference]: Without dead ends: 3128 [2022-11-22 00:25:19,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:25:19,837 INFO L413 NwaCegarLoop]: 2463 mSDtfsCounter, 2226 mSDsluCounter, 1940 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2226 SdHoareTripleChecker+Valid, 4403 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-22 00:25:19,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2226 Valid, 4403 Invalid, 677 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 673 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2022-11-22 00:25:19,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3128 states. [2022-11-22 00:25:20,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3128 to 3128. [2022-11-22 00:25:20,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 1914 states have (on average 1.2920585161964473) internal successors, (2473), 1950 states have internal predecessors, (2473), 1002 states have call successors, (1002), 212 states have call predecessors, (1002), 211 states have return successors, (999), 989 states have call predecessors, (999), 999 states have call successors, (999) [2022-11-22 00:25:20,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 4474 transitions. [2022-11-22 00:25:20,204 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 4474 transitions. Word has length 127 [2022-11-22 00:25:20,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:25:20,207 INFO L495 AbstractCegarLoop]: Abstraction has 3128 states and 4474 transitions. [2022-11-22 00:25:20,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-22 00:25:20,207 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 4474 transitions. [2022-11-22 00:25:20,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-22 00:25:20,221 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:25:20,222 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 4, 4, 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] [2022-11-22 00:25:20,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:25:20,222 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:25:20,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:25:20,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1119650744, now seen corresponding path program 1 times [2022-11-22 00:25:20,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:25:20,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632652338] [2022-11-22 00:25:20,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:25:20,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:25:20,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:25:21,079 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 563 trivial. 0 not checked. [2022-11-22 00:25:21,079 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:25:21,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632652338] [2022-11-22 00:25:21,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632652338] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:25:21,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:25:21,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:25:21,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155206629] [2022-11-22 00:25:21,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:25:21,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:25:21,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:25:21,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:25:21,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:25:21,089 INFO L87 Difference]: Start difference. First operand 3128 states and 4474 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-22 00:25:23,937 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 [] [2022-11-22 00:25:28,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:25:31,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:25:33,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:25:33,086 INFO L93 Difference]: Finished difference Result 6239 states and 8919 transitions. [2022-11-22 00:25:33,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 00:25:33,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 165 [2022-11-22 00:25:33,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:25:33,137 INFO L225 Difference]: With dead ends: 6239 [2022-11-22 00:25:33,138 INFO L226 Difference]: Without dead ends: 6237 [2022-11-22 00:25:33,142 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 [2022-11-22 00:25:33,144 INFO L413 NwaCegarLoop]: 2444 mSDtfsCounter, 2241 mSDsluCounter, 6797 mSDsCounter, 0 mSdLazyCounter, 1343 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2244 SdHoareTripleChecker+Valid, 9241 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1343 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2022-11-22 00:25:33,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2244 Valid, 9241 Invalid, 1348 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1343 Invalid, 3 Unknown, 0 Unchecked, 11.4s Time] [2022-11-22 00:25:33,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6237 states. [2022-11-22 00:25:33,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6237 to 6235. [2022-11-22 00:25:33,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6235 states, 3818 states have (on average 1.2928234677841801) internal successors, (4936), 3890 states have internal predecessors, (4936), 1993 states have call successors, (1993), 425 states have call predecessors, (1993), 423 states have return successors, (1987), 1967 states have call predecessors, (1987), 1987 states have call successors, (1987) [2022-11-22 00:25:33,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6235 states to 6235 states and 8916 transitions. [2022-11-22 00:25:33,523 INFO L78 Accepts]: Start accepts. Automaton has 6235 states and 8916 transitions. Word has length 165 [2022-11-22 00:25:33,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:25:33,526 INFO L495 AbstractCegarLoop]: Abstraction has 6235 states and 8916 transitions. [2022-11-22 00:25:33,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-22 00:25:33,526 INFO L276 IsEmpty]: Start isEmpty. Operand 6235 states and 8916 transitions. [2022-11-22 00:25:33,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-11-22 00:25:33,538 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:25:33,539 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 4, 4, 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] [2022-11-22 00:25:33,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:25:33,539 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:25:33,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:25:33,550 INFO L85 PathProgramCache]: Analyzing trace with hash -827870896, now seen corresponding path program 1 times [2022-11-22 00:25:33,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:25:33,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951318198] [2022-11-22 00:25:33,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:25:33,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:25:33,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:25:34,198 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 563 trivial. 0 not checked. [2022-11-22 00:25:34,199 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:25:34,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951318198] [2022-11-22 00:25:34,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951318198] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:25:34,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:25:34,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:25:34,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971792616] [2022-11-22 00:25:34,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:25:34,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:25:34,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:25:34,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:25:34,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:25:34,203 INFO L87 Difference]: Start difference. First operand 6235 states and 8916 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-22 00:25:36,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:25:38,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:25:47,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:25:47,203 INFO L93 Difference]: Finished difference Result 12037 states and 17399 transitions. [2022-11-22 00:25:47,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 00:25:47,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 170 [2022-11-22 00:25:47,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:25:47,316 INFO L225 Difference]: With dead ends: 12037 [2022-11-22 00:25:47,317 INFO L226 Difference]: Without dead ends: 12035 [2022-11-22 00:25:47,331 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 [2022-11-22 00:25:47,332 INFO L413 NwaCegarLoop]: 2484 mSDtfsCounter, 2140 mSDsluCounter, 6871 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2142 SdHoareTripleChecker+Valid, 9355 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:25:47,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2142 Valid, 9355 Invalid, 1378 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1373 Invalid, 1 Unknown, 0 Unchecked, 12.3s Time] [2022-11-22 00:25:47,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12035 states. [2022-11-22 00:25:48,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12035 to 11945. [2022-11-22 00:25:48,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11945 states, 7313 states have (on average 1.2964583618214138) internal successors, (9481), 7489 states have internal predecessors, (9481), 3807 states have call successors, (3807), 828 states have call predecessors, (3807), 824 states have return successors, (3987), 3719 states have call predecessors, (3987), 3795 states have call successors, (3987) [2022-11-22 00:25:48,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11945 states to 11945 states and 17275 transitions. [2022-11-22 00:25:48,245 INFO L78 Accepts]: Start accepts. Automaton has 11945 states and 17275 transitions. Word has length 170 [2022-11-22 00:25:48,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:25:48,247 INFO L495 AbstractCegarLoop]: Abstraction has 11945 states and 17275 transitions. [2022-11-22 00:25:48,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-22 00:25:48,248 INFO L276 IsEmpty]: Start isEmpty. Operand 11945 states and 17275 transitions. [2022-11-22 00:25:48,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-22 00:25:48,260 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:25:48,260 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 4, 4, 3, 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] [2022-11-22 00:25:48,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 00:25:48,260 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:25:48,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:25:48,262 INFO L85 PathProgramCache]: Analyzing trace with hash -886154632, now seen corresponding path program 1 times [2022-11-22 00:25:48,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:25:48,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535005588] [2022-11-22 00:25:48,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:25:48,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:25:48,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:25:48,874 INFO L134 CoverageAnalysis]: Checked inductivity of 571 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2022-11-22 00:25:48,875 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:25:48,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535005588] [2022-11-22 00:25:48,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535005588] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:25:48,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:25:48,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:25:48,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171432154] [2022-11-22 00:25:48,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:25:48,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:25:48,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:25:48,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:25:48,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:25:48,878 INFO L87 Difference]: Start difference. First operand 11945 states and 17275 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-22 00:25:51,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:25:54,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:25:56,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:26:00,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:26:00,099 INFO L93 Difference]: Finished difference Result 23277 states and 34197 transitions. [2022-11-22 00:26:00,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 00:26:00,100 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 175 [2022-11-22 00:26:00,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:26:00,382 INFO L225 Difference]: With dead ends: 23277 [2022-11-22 00:26:00,382 INFO L226 Difference]: Without dead ends: 23273 [2022-11-22 00:26:00,399 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 [2022-11-22 00:26:00,404 INFO L413 NwaCegarLoop]: 2483 mSDtfsCounter, 2127 mSDsluCounter, 6875 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2128 SdHoareTripleChecker+Valid, 9358 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:26:00,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2128 Valid, 9358 Invalid, 1378 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1373 Invalid, 1 Unknown, 0 Unchecked, 10.3s Time] [2022-11-22 00:26:00,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23273 states. [2022-11-22 00:26:01,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23273 to 23143. [2022-11-22 00:26:01,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23143 states, 14184 states have (on average 1.2994218838127467) internal successors, (18431), 14563 states have internal predecessors, (18431), 7359 states have call successors, (7359), 1620 states have call predecessors, (7359), 1599 states have return successors, (8231), 7135 states have call predecessors, (8231), 7335 states have call successors, (8231) [2022-11-22 00:26:02,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23143 states to 23143 states and 34021 transitions. [2022-11-22 00:26:02,121 INFO L78 Accepts]: Start accepts. Automaton has 23143 states and 34021 transitions. Word has length 175 [2022-11-22 00:26:02,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:26:02,122 INFO L495 AbstractCegarLoop]: Abstraction has 23143 states and 34021 transitions. [2022-11-22 00:26:02,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-22 00:26:02,122 INFO L276 IsEmpty]: Start isEmpty. Operand 23143 states and 34021 transitions. [2022-11-22 00:26:02,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-22 00:26:02,137 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:26:02,138 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 6, 6, 4, 3, 3, 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] [2022-11-22 00:26:02,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 00:26:02,142 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:26:02,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:26:02,143 INFO L85 PathProgramCache]: Analyzing trace with hash -138165863, now seen corresponding path program 1 times [2022-11-22 00:26:02,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:26:02,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842157693] [2022-11-22 00:26:02,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:26:02,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:26:02,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:26:02,758 INFO L134 CoverageAnalysis]: Checked inductivity of 607 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2022-11-22 00:26:02,759 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:26:02,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842157693] [2022-11-22 00:26:02,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842157693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:26:02,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:26:02,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:26:02,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019515505] [2022-11-22 00:26:02,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:26:02,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:26:02,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:26:02,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:26:02,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:26:02,762 INFO L87 Difference]: Start difference. First operand 23143 states and 34021 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-22 00:26:06,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:26:14,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:26:14,952 INFO L93 Difference]: Finished difference Result 46261 states and 69577 transitions. [2022-11-22 00:26:14,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 00:26:14,953 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 189 [2022-11-22 00:26:14,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:26:15,277 INFO L225 Difference]: With dead ends: 46261 [2022-11-22 00:26:15,277 INFO L226 Difference]: Without dead ends: 46172 [2022-11-22 00:26:15,320 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 [2022-11-22 00:26:15,321 INFO L413 NwaCegarLoop]: 2485 mSDtfsCounter, 2259 mSDsluCounter, 6897 mSDsCounter, 0 mSdLazyCounter, 1343 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2259 SdHoareTripleChecker+Valid, 9382 SdHoareTripleChecker+Invalid, 1347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-11-22 00:26:15,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2259 Valid, 9382 Invalid, 1347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1343 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2022-11-22 00:26:15,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46172 states. [2022-11-22 00:26:19,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46172 to 46144. [2022-11-22 00:26:19,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46144 states, 28289 states have (on average 1.2999399059705186) internal successors, (36774), 29054 states have internal predecessors, (36774), 14674 states have call successors, (14674), 3224 states have call predecessors, (14674), 3180 states have return successors, (17989), 14217 states have call predecessors, (17989), 14629 states have call successors, (17989) [2022-11-22 00:26:19,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46144 states to 46144 states and 69437 transitions. [2022-11-22 00:26:19,389 INFO L78 Accepts]: Start accepts. Automaton has 46144 states and 69437 transitions. Word has length 189 [2022-11-22 00:26:19,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:26:19,394 INFO L495 AbstractCegarLoop]: Abstraction has 46144 states and 69437 transitions. [2022-11-22 00:26:19,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-22 00:26:19,395 INFO L276 IsEmpty]: Start isEmpty. Operand 46144 states and 69437 transitions. [2022-11-22 00:26:19,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-11-22 00:26:19,428 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:26:19,428 INFO L195 NwaCegarLoop]: trace histogram [16, 11, 11, 11, 11, 11, 11, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:26:19,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 00:26:19,429 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:26:19,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:26:19,429 INFO L85 PathProgramCache]: Analyzing trace with hash -172550606, now seen corresponding path program 1 times [2022-11-22 00:26:19,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:26:19,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168988518] [2022-11-22 00:26:19,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:26:19,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:26:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:26:27,244 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 593 trivial. 0 not checked. [2022-11-22 00:26:27,245 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:26:27,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168988518] [2022-11-22 00:26:27,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168988518] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:26:27,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:26:27,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:26:27,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414739210] [2022-11-22 00:26:27,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:26:27,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:26:27,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:26:27,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:26:27,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:26:27,249 INFO L87 Difference]: Start difference. First operand 46144 states and 69437 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-22 00:26:32,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:26:36,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:26:38,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:26:38,973 INFO L93 Difference]: Finished difference Result 133026 states and 204903 transitions. [2022-11-22 00:26:38,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:26:38,974 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 201 [2022-11-22 00:26:38,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:26:39,987 INFO L225 Difference]: With dead ends: 133026 [2022-11-22 00:26:39,987 INFO L226 Difference]: Without dead ends: 86905 [2022-11-22 00:26:40,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:26:40,270 INFO L413 NwaCegarLoop]: 2420 mSDtfsCounter, 2007 mSDsluCounter, 1919 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2007 SdHoareTripleChecker+Valid, 4339 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-22 00:26:40,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2007 Valid, 4339 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 698 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-11-22 00:26:40,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86905 states. [2022-11-22 00:26:46,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86905 to 86639. [2022-11-22 00:26:46,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86639 states, 53036 states have (on average 1.2930650878648464) internal successors, (68579), 54535 states have internal predecessors, (68579), 27430 states have call successors, (27430), 6276 states have call predecessors, (27430), 6172 states have return successors, (39049), 26443 states have call predecessors, (39049), 27385 states have call successors, (39049) [2022-11-22 00:26:47,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86639 states to 86639 states and 135058 transitions. [2022-11-22 00:26:47,678 INFO L78 Accepts]: Start accepts. Automaton has 86639 states and 135058 transitions. Word has length 201 [2022-11-22 00:26:47,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:26:47,679 INFO L495 AbstractCegarLoop]: Abstraction has 86639 states and 135058 transitions. [2022-11-22 00:26:47,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-22 00:26:47,680 INFO L276 IsEmpty]: Start isEmpty. Operand 86639 states and 135058 transitions. [2022-11-22 00:26:47,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-11-22 00:26:47,711 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:26:47,712 INFO L195 NwaCegarLoop]: trace histogram [18, 11, 11, 11, 11, 11, 11, 4, 4, 3, 3, 3, 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] [2022-11-22 00:26:47,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 00:26:47,712 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:26:47,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:26:47,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1760196105, now seen corresponding path program 1 times [2022-11-22 00:26:47,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:26:47,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298146750] [2022-11-22 00:26:47,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:26:47,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:26:47,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:26:48,030 INFO L134 CoverageAnalysis]: Checked inductivity of 667 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2022-11-22 00:26:48,031 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:26:48,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298146750] [2022-11-22 00:26:48,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298146750] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:26:48,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:26:48,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:26:48,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992861749] [2022-11-22 00:26:48,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:26:48,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:26:48,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:26:48,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:26:48,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:26:48,034 INFO L87 Difference]: Start difference. First operand 86639 states and 135058 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-11-22 00:26:54,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:27:03,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:27:03,131 INFO L93 Difference]: Finished difference Result 245975 states and 374218 transitions. [2022-11-22 00:27:03,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:27:03,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 223 [2022-11-22 00:27:03,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:27:04,683 INFO L225 Difference]: With dead ends: 245975 [2022-11-22 00:27:04,683 INFO L226 Difference]: Without dead ends: 159359 [2022-11-22 00:27:05,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:27:05,093 INFO L413 NwaCegarLoop]: 3065 mSDtfsCounter, 2043 mSDsluCounter, 1893 mSDsCounter, 0 mSdLazyCounter, 860 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2043 SdHoareTripleChecker+Valid, 4958 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:27:05,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2043 Valid, 4958 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 860 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-11-22 00:27:05,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159359 states.