./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-intel-e1000-e1000.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b5b5b8-9e01-4de1-97ae-916e99be3714/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b5b5b8-9e01-4de1-97ae-916e99be3714/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_c0b5b5b8-9e01-4de1-97ae-916e99be3714/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b5b5b8-9e01-4de1-97ae-916e99be3714/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-intel-e1000-e1000.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b5b5b8-9e01-4de1-97ae-916e99be3714/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_c0b5b5b8-9e01-4de1-97ae-916e99be3714/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 e282dee958ab2234ea07036ebd12b370ba9c340bf289a9a8f423d22b133c3ff1 --- 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 00:14:02,259 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:14:02,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:14:02,282 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:14:02,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:14:02,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:14:02,293 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:14:02,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:14:02,299 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:14:02,302 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:14:02,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:14:02,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:14:02,307 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:14:02,312 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:14:02,315 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:14:02,317 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:14:02,319 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:14:02,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:14:02,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:14:02,323 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:14:02,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:14:02,328 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:14:02,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:14:02,332 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:14:02,337 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:14:02,342 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:14:02,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:14:02,343 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:14:02,344 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:14:02,345 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:14:02,347 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:14:02,348 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:14:02,350 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:14:02,352 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:14:02,353 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:14:02,353 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:14:02,354 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:14:02,354 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:14:02,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:14:02,357 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:14:02,358 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:14:02,359 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b5b5b8-9e01-4de1-97ae-916e99be3714/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 00:14:02,394 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:14:02,394 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:14:02,395 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:14:02,395 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:14:02,396 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:14:02,396 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:14:02,397 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:14:02,397 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:14:02,397 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:14:02,397 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:14:02,399 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:14:02,399 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:14:02,399 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:14:02,399 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:14:02,400 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:14:02,400 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:14:02,400 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:14:02,400 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:14:02,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:14:02,401 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:14:02,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:14:02,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:14:02,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:14:02,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:14:02,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:14:02,403 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:14:02,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:14:02,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:14:02,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:14:02,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:14:02,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:14:02,405 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:14:02,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:14:02,406 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:14:02,406 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:14:02,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:14:02,407 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:14:02,407 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:14:02,408 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_c0b5b5b8-9e01-4de1-97ae-916e99be3714/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b5b5b8-9e01-4de1-97ae-916e99be3714/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e282dee958ab2234ea07036ebd12b370ba9c340bf289a9a8f423d22b133c3ff1 [2022-11-22 00:14:02,688 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:14:02,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:14:02,722 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:14:02,723 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:14:02,724 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:14:02,725 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b5b5b8-9e01-4de1-97ae-916e99be3714/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-22 00:14:05,745 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:14:06,867 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:14:06,868 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b5b5b8-9e01-4de1-97ae-916e99be3714/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-22 00:14:07,001 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b5b5b8-9e01-4de1-97ae-916e99be3714/bin/utaipan-g80aRyZoba/data/c0c0bc21a/6c7ec236866e4ec0bf3702002f9c89d5/FLAG11c6a4cb9 [2022-11-22 00:14:07,024 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b5b5b8-9e01-4de1-97ae-916e99be3714/bin/utaipan-g80aRyZoba/data/c0c0bc21a/6c7ec236866e4ec0bf3702002f9c89d5 [2022-11-22 00:14:07,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:14:07,030 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:14:07,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:14:07,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:14:07,038 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:14:07,039 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:14:07" (1/1) ... [2022-11-22 00:14:07,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f53b004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:07, skipping insertion in model container [2022-11-22 00:14:07,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:14:07" (1/1) ... [2022-11-22 00:14:07,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:14:07,414 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:14:15,753 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_c0b5b5b8-9e01-4de1-97ae-916e99be3714/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-intel-e1000-e1000.cil.i[899059,899072] [2022-11-22 00:14:15,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:14:15,869 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:14:16,983 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_c0b5b5b8-9e01-4de1-97ae-916e99be3714/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-intel-e1000-e1000.cil.i[899059,899072] [2022-11-22 00:14:17,009 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:14:17,557 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:14:17,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:17 WrapperNode [2022-11-22 00:14:17,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:14:17,560 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:14:17,561 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:14:17,561 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:14:17,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:17" (1/1) ... [2022-11-22 00:14:17,906 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:17" (1/1) ... [2022-11-22 00:14:18,837 INFO L138 Inliner]: procedures = 711, calls = 16202, calls flagged for inlining = 397, calls inlined = 350, statements flattened = 28558 [2022-11-22 00:14:18,851 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:14:18,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:14:18,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:14:18,853 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:14:18,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:17" (1/1) ... [2022-11-22 00:14:18,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:17" (1/1) ... [2022-11-22 00:14:19,361 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:17" (1/1) ... [2022-11-22 00:14:19,361 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:17" (1/1) ... [2022-11-22 00:14:20,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:17" (1/1) ... [2022-11-22 00:14:20,254 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:17" (1/1) ... [2022-11-22 00:14:20,382 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:17" (1/1) ... [2022-11-22 00:14:20,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:17" (1/1) ... [2022-11-22 00:14:20,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:14:20,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:14:20,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:14:20,735 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:14:20,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:17" (1/1) ... [2022-11-22 00:14:20,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:14:20,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b5b5b8-9e01-4de1-97ae-916e99be3714/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:14:20,772 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b5b5b8-9e01-4de1-97ae-916e99be3714/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:14:20,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b5b5b8-9e01-4de1-97ae-916e99be3714/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:14:20,811 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-22 00:14:20,811 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-22 00:14:20,811 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_fc_after_link_up [2022-11-22 00:14:20,811 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_fc_after_link_up [2022-11-22 00:14:20,811 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-22 00:14:20,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-22 00:14:20,812 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_collision_dist [2022-11-22 00:14:20,812 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_collision_dist [2022-11-22 00:14:20,812 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_ee_clk [2022-11-22 00:14:20,812 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_ee_clk [2022-11-22 00:14:20,812 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-11-22 00:14:20,812 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-11-22 00:14:20,812 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-22 00:14:20,812 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-22 00:14:20,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 00:14:20,813 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 00:14:20,813 INFO L130 BoogieDeclarations]: Found specification of procedure reg_pattern_test [2022-11-22 00:14:20,813 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_pattern_test [2022-11-22 00:14:20,813 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-22 00:14:20,813 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-22 00:14:20,813 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-22 00:14:20,813 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-22 00:14:20,814 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-22 00:14:20,814 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-22 00:14:20,814 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_eeprom [2022-11-22 00:14:20,814 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_eeprom [2022-11-22 00:14:20,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 00:14:20,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 00:14:20,814 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_manageability [2022-11-22 00:14:20,814 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_manageability [2022-11-22 00:14:20,814 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_in_ee_bits [2022-11-22 00:14:20,815 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_in_ee_bits [2022-11-22 00:14:20,815 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down_and_stop [2022-11-22 00:14:20,815 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down_and_stop [2022-11-22 00:14:20,815 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-22 00:14:20,815 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-22 00:14:20,815 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-11-22 00:14:20,815 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-11-22 00:14:20,815 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-22 00:14:20,815 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-22 00:14:20,816 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_unmap_and_free_tx_resource [2022-11-22 00:14:20,816 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_unmap_and_free_tx_resource [2022-11-22 00:14:20,816 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-22 00:14:20,816 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-22 00:14:20,816 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_get_info [2022-11-22 00:14:20,816 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_get_info [2022-11-22 00:14:20,816 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 00:14:20,816 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 00:14:20,816 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-22 00:14:20,817 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-22 00:14:20,817 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_do_read_eeprom [2022-11-22 00:14:20,817 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_do_read_eeprom [2022-11-22 00:14:20,817 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_rctl [2022-11-22 00:14:20,817 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_rctl [2022-11-22 00:14:20,817 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-22 00:14:20,817 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-22 00:14:20,817 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set [2022-11-22 00:14:20,818 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set [2022-11-22 00:14:20,818 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2022-11-22 00:14:20,818 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2022-11-22 00:14:20,818 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 00:14:20,818 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 00:14:20,818 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset [2022-11-22 00:14:20,818 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset [2022-11-22 00:14:20,818 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2022-11-22 00:14:20,818 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2022-11-22 00:14:20,819 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_eeprom_params [2022-11-22 00:14:20,819 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_eeprom_params [2022-11-22 00:14:20,819 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2022-11-22 00:14:20,819 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2022-11-22 00:14:20,875 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-22 00:14:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-22 00:14:20,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 00:14:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 00:14:20,875 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-22 00:14:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-22 00:14:20,875 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-22 00:14:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-22 00:14:20,875 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-22 00:14:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-22 00:14:20,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 00:14:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 00:14:20,876 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-22 00:14:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-22 00:14:20,876 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-22 00:14:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-22 00:14:20,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:14:20,876 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-22 00:14:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-22 00:14:20,876 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg [2022-11-22 00:14:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg [2022-11-22 00:14:20,877 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_speed_and_duplex [2022-11-22 00:14:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_speed_and_duplex [2022-11-22 00:14:20,877 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_standby_eeprom [2022-11-22 00:14:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_standby_eeprom [2022-11-22 00:14:20,877 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_bit [2022-11-22 00:14:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_bit [2022-11-22 00:14:20,877 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-22 00:14:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-22 00:14:20,877 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure_rx [2022-11-22 00:14:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure_rx [2022-11-22 00:14:20,877 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-22 00:14:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-22 00:14:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_hw_dev [2022-11-22 00:14:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_hw_dev [2022-11-22 00:14:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_stats [2022-11-22 00:14:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_stats [2022-11-22 00:14:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_validate_option [2022-11-22 00:14:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_validate_option [2022-11-22 00:14:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 00:14:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 00:14:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-22 00:14:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-22 00:14:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link [2022-11-22 00:14:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link [2022-11-22 00:14:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_irq [2022-11-22 00:14:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_irq [2022-11-22 00:14:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 00:14:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-22 00:14:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-22 00:14:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_link [2022-11-22 00:14:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_link [2022-11-22 00:14:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_vlan_mode [2022-11-22 00:14:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_vlan_mode [2022-11-22 00:14:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset [2022-11-22 00:14:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset [2022-11-22 00:14:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 00:14:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 00:14:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_dsp_after_link_change [2022-11-22 00:14:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_dsp_after_link_change [2022-11-22 00:14:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 00:14:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 00:14:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 00:14:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_maybe_stop_tx [2022-11-22 00:14:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_maybe_stop_tx [2022-11-22 00:14:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 00:14:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-22 00:14:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-22 00:14:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shutdown [2022-11-22 00:14:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shutdown [2022-11-22 00:14:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2022-11-22 00:14:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2022-11-22 00:14:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_used [2022-11-22 00:14:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_used [2022-11-22 00:14:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 00:14:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 00:14:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_disable_receiver [2022-11-22 00:14:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_disable_receiver [2022-11-22 00:14:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_kill_vid [2022-11-22 00:14:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_kill_vid [2022-11-22 00:14:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-22 00:14:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-22 00:14:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_force_mac_fc [2022-11-22 00:14:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_force_mac_fc [2022-11-22 00:14:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-22 00:14:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-22 00:14:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 00:14:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 00:14:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2022-11-22 00:14:20,886 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2022-11-22 00:14:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 00:14:20,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 00:14:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_leave_82542_rst [2022-11-22 00:14:20,886 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_leave_82542_rst [2022-11-22 00:14:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_has_link [2022-11-22 00:14:20,886 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_has_link [2022-11-22 00:14:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-22 00:14:20,886 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-22 00:14:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-22 00:14:20,887 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-22 00:14:20,887 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2022-11-22 00:14:20,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2022-11-22 00:14:20,887 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_tx_resources [2022-11-22 00:14:20,887 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_tx_resources [2022-11-22 00:14:20,887 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-22 00:14:20,887 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-22 00:14:20,887 INFO L130 BoogieDeclarations]: Found specification of procedure pci_wake_from_d3 [2022-11-22 00:14:20,887 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_wake_from_d3 [2022-11-22 00:14:20,888 INFO L130 BoogieDeclarations]: Found specification of procedure reg_set_and_check [2022-11-22 00:14:20,888 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_set_and_check [2022-11-22 00:14:20,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 00:14:20,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-22 00:14:20,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-22 00:14:20,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-22 00:14:20,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-22 00:14:20,888 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_netpoll [2022-11-22 00:14:20,888 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_netpoll [2022-11-22 00:14:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-22 00:14:20,889 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-22 00:14:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:14:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-22 00:14:20,889 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-22 00:14:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 00:14:20,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 00:14:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 00:14:20,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 00:14:20,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 00:14:20,890 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_rx_mode [2022-11-22 00:14:20,890 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_rx_mode [2022-11-22 00:14:20,890 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-22 00:14:20,890 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-22 00:14:20,890 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-22 00:14:20,891 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 00:14:20,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 00:14:20,891 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_open [2022-11-22 00:14:20,891 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_open [2022-11-22 00:14:20,891 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-22 00:14:20,891 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-22 00:14:20,892 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_hw_reset [2022-11-22 00:14:20,892 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_hw_reset [2022-11-22 00:14:20,892 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_vfta [2022-11-22 00:14:20,893 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_vfta [2022-11-22 00:14:20,893 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-22 00:14:20,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-22 00:14:20,893 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_remove [2022-11-22 00:14:20,893 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_remove [2022-11-22 00:14:20,893 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_ee_bits [2022-11-22 00:14:20,893 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_ee_bits [2022-11-22 00:14:20,893 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure [2022-11-22 00:14:20,894 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure [2022-11-22 00:14:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-22 00:14:20,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-22 00:14:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-22 00:14:20,895 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-22 00:14:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 00:14:20,895 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 00:14:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_cable_length [2022-11-22 00:14:20,895 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_cable_length [2022-11-22 00:14:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-22 00:14:20,896 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-22 00:14:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_ee_clk [2022-11-22 00:14:20,896 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_ee_clk [2022-11-22 00:14:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_rx_resources [2022-11-22 00:14:20,896 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_rx_resources [2022-11-22 00:14:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-22 00:14:20,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-22 00:14:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_add_vid [2022-11-22 00:14:20,897 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_add_vid [2022-11-22 00:14:20,898 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2022-11-22 00:14:20,900 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2022-11-22 00:14:20,901 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2022-11-22 00:14:20,901 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2022-11-22 00:14:20,901 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-22 00:14:20,902 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-22 00:14:20,902 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_write [2022-11-22 00:14:20,903 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_write [2022-11-22 00:14:20,903 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-22 00:14:20,903 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-22 00:14:20,908 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_resume [2022-11-22 00:14:20,909 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_resume [2022-11-22 00:14:20,909 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-22 00:14:20,909 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-22 00:14:20,909 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-22 00:14:20,909 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-22 00:14:20,909 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom [2022-11-22 00:14:20,909 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom [2022-11-22 00:14:20,909 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_enter_82542_rst [2022-11-22 00:14:20,909 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_enter_82542_rst [2022-11-22 00:14:20,909 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_acquire_eeprom [2022-11-22 00:14:20,910 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_acquire_eeprom [2022-11-22 00:14:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-22 00:14:20,910 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-22 00:14:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:14:20,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:14:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_down_phy [2022-11-22 00:14:20,910 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_down_phy [2022-11-22 00:14:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-22 00:14:20,910 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-22 00:14:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2022-11-22 00:14:20,911 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2022-11-22 00:14:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_spi_eeprom_ready [2022-11-22 00:14:20,911 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_spi_eeprom_ready [2022-11-22 00:14:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_clear_mwi [2022-11-22 00:14:20,911 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_clear_mwi [2022-11-22 00:14:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-22 00:14:20,911 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-22 00:14:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_up_phy [2022-11-22 00:14:20,911 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_up_phy [2022-11-22 00:14:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 00:14:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 00:14:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 00:14:20,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 00:14:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-22 00:14:20,912 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-22 00:14:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-22 00:14:20,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-22 00:14:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-22 00:14:20,912 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-22 00:14:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg_ex [2022-11-22 00:14:20,913 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg_ex [2022-11-22 00:14:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-22 00:14:20,913 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-22 00:14:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-22 00:14:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-22 00:14:20,913 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-22 00:14:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-22 00:14:20,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-22 00:14:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_resume [2022-11-22 00:14:20,914 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_resume [2022-11-22 00:14:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-22 00:14:20,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-22 00:14:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-22 00:14:20,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-22 00:14:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_polarity [2022-11-22 00:14:20,914 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_polarity [2022-11-22 00:14:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-22 00:14:20,914 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-22 00:14:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 00:14:20,915 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 00:14:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-22 00:14:20,915 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-22 00:14:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_mdi_clk [2022-11-22 00:14:20,915 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_mdi_clk [2022-11-22 00:14:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_mac_to_phy [2022-11-22 00:14:20,915 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_mac_to_phy [2022-11-22 00:14:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom_len [2022-11-22 00:14:20,915 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom_len [2022-11-22 00:14:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-22 00:14:20,916 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-22 00:14:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2022-11-22 00:14:20,916 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2022-11-22 00:14:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_rx_resources [2022-11-22 00:14:20,916 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_rx_resources [2022-11-22 00:14:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-11-22 00:14:20,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-11-22 00:14:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-22 00:14:20,916 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-22 00:14:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_close [2022-11-22 00:14:20,917 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_close [2022-11-22 00:14:20,917 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset_clk_and_crs [2022-11-22 00:14:20,917 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset_clk_and_crs [2022-11-22 00:14:20,917 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-22 00:14:20,917 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-22 00:14:20,917 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-22 00:14:20,917 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-22 00:14:20,917 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-22 00:14:20,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-22 00:14:20,917 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-22 00:14:20,918 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-22 00:14:20,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:14:20,918 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-22 00:14:20,918 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-22 00:14:20,918 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-22 00:14:20,918 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-22 00:14:20,918 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-22 00:14:20,918 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-22 00:14:20,918 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_regs_len [2022-11-22 00:14:20,920 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_regs_len [2022-11-22 00:14:20,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 00:14:20,921 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-22 00:14:20,921 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-22 00:14:20,921 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-22 00:14:20,921 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-22 00:14:20,921 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2022-11-22 00:14:20,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2022-11-22 00:14:20,921 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_tx_resources [2022-11-22 00:14:20,921 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_tx_resources [2022-11-22 00:14:20,921 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_setup_autoneg [2022-11-22 00:14:20,921 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_setup_autoneg [2022-11-22 00:14:20,922 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_mng_vlan [2022-11-22 00:14:20,922 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_mng_vlan [2022-11-22 00:14:20,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 00:14:20,922 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_media_type [2022-11-22 00:14:20,922 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_media_type [2022-11-22 00:14:20,922 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_eeprom [2022-11-22 00:14:20,923 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_eeprom [2022-11-22 00:14:20,927 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_filter_on_off [2022-11-22 00:14:20,927 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_filter_on_off [2022-11-22 00:14:20,927 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-22 00:14:20,927 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-22 00:14:20,927 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_nway_reset [2022-11-22 00:14:20,927 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_nway_reset [2022-11-22 00:14:20,928 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-22 00:14:20,928 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-22 00:14:20,928 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_phy_loopback [2022-11-22 00:14:20,929 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_phy_loopback [2022-11-22 00:14:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 00:14:20,929 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 00:14:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-22 00:14:20,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-22 00:14:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 00:14:20,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 00:14:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-22 00:14:20,930 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-22 00:14:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_all_rx_rings [2022-11-22 00:14:20,930 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_all_rx_rings [2022-11-22 00:14:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-22 00:14:20,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-22 00:14:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_enable [2022-11-22 00:14:20,930 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_enable [2022-11-22 00:14:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_up [2022-11-22 00:14:20,931 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_up [2022-11-22 00:14:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_tx_timeout [2022-11-22 00:14:20,931 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_tx_timeout [2022-11-22 00:14:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reinit_locked [2022-11-22 00:14:20,931 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reinit_locked [2022-11-22 00:14:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_bit [2022-11-22 00:14:20,931 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_bit [2022-11-22 00:14:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_phy_reg [2022-11-22 00:14:20,931 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_phy_reg [2022-11-22 00:14:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_rx_resources [2022-11-22 00:14:20,932 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_rx_resources [2022-11-22 00:14:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_mdi_clk [2022-11-22 00:14:20,932 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_mdi_clk [2022-11-22 00:14:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-22 00:14:20,932 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-22 00:14:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-22 00:14:20,932 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-22 00:14:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-22 00:14:20,932 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-22 00:14:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_copper_link_rtl_setup [2022-11-22 00:14:20,932 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_copper_link_rtl_setup [2022-11-22 00:14:20,933 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-11-22 00:14:20,933 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-11-22 00:14:20,933 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_eeprom [2022-11-22 00:14:20,933 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_eeprom [2022-11-22 00:14:20,933 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_desc_rings [2022-11-22 00:14:20,933 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_desc_rings [2022-11-22 00:14:20,933 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_set_mwi [2022-11-22 00:14:20,933 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_set_mwi [2022-11-22 00:14:20,933 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-22 00:14:20,933 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-22 00:14:20,933 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-22 00:14:20,934 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-22 00:14:20,934 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_polarity_reversal_workaround [2022-11-22 00:14:20,934 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_polarity_reversal_workaround [2022-11-22 00:14:20,934 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-22 00:14:20,934 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-22 00:14:20,934 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-22 00:14:20,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-22 00:14:20,934 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 00:14:20,934 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 00:14:20,934 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_link_test [2022-11-22 00:14:20,935 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_link_test [2022-11-22 00:14:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_mdi_bits [2022-11-22 00:14:20,935 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_mdi_bits [2022-11-22 00:14:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:14:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_64k_bound [2022-11-22 00:14:20,935 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_64k_bound [2022-11-22 00:14:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 00:14:20,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 00:14:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_spd_dplx [2022-11-22 00:14:20,935 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_spd_dplx [2022-11-22 00:14:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2022-11-22 00:14:20,936 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2022-11-22 00:14:20,936 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down [2022-11-22 00:14:20,936 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down [2022-11-22 00:14:20,936 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-22 00:14:20,936 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-22 00:14:20,936 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_init_script [2022-11-22 00:14:20,936 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_init_script [2022-11-22 00:14:20,936 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-22 00:14:20,936 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-22 00:14:20,936 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-22 00:14:20,937 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-22 00:14:20,937 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_request_irq [2022-11-22 00:14:20,937 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_request_irq [2022-11-22 00:14:20,937 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-22 00:14:20,937 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-22 00:14:20,937 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_eeprom [2022-11-22 00:14:20,937 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_eeprom [2022-11-22 00:14:20,937 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw [2022-11-22 00:14:20,937 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw [2022-11-22 00:14:20,937 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_disable [2022-11-22 00:14:20,937 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_disable [2022-11-22 00:14:20,938 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-11-22 00:14:20,938 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-11-22 00:14:20,938 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-22 00:14:20,938 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-22 00:14:20,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_10 [2022-11-22 00:14:20,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_10 [2022-11-22 00:14:20,938 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_tx_ring [2022-11-22 00:14:20,938 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_tx_ring [2022-11-22 00:14:20,938 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_shutdown [2022-11-22 00:14:20,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_shutdown [2022-11-22 00:14:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_tx_resources [2022-11-22 00:14:20,939 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_tx_resources [2022-11-22 00:14:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 00:14:20,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 00:14:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-22 00:14:20,939 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-22 00:14:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-22 00:14:20,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-22 00:14:20,943 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-22 00:14:20,943 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-22 00:14:20,943 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_manageability [2022-11-22 00:14:20,944 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_manageability [2022-11-22 00:14:20,944 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-11-22 00:14:20,944 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-11-22 00:14:20,944 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-22 00:14:20,944 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-22 00:14:20,944 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_wol_exclusion [2022-11-22 00:14:20,944 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_wol_exclusion [2022-11-22 00:14:20,945 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-22 00:14:20,945 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-22 00:14:20,945 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-22 00:14:20,945 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-22 00:14:20,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_e1000_exit_module_13_2 [2022-11-22 00:14:20,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_e1000_exit_module_13_2 [2022-11-22 00:14:20,945 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-22 00:14:20,945 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-22 00:14:20,946 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-22 00:14:20,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:14:20,946 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-11-22 00:14:20,946 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-11-22 00:14:20,946 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_rx_ring [2022-11-22 00:14:20,946 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_rx_ring [2022-11-22 00:14:20,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 00:14:20,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 00:14:20,947 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-22 00:14:23,335 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:14:23,340 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:14:25,020 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 00:15:28,538 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 00:15:28,971 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:15:36,512 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:15:36,512 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-22 00:15:36,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:15:36 BoogieIcfgContainer [2022-11-22 00:15:36,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:15:36,524 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:15:36,524 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:15:36,527 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:15:36,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:14:07" (1/3) ... [2022-11-22 00:15:36,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4076257f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:15:36, skipping insertion in model container [2022-11-22 00:15:36,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:17" (2/3) ... [2022-11-22 00:15:36,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4076257f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:15:36, skipping insertion in model container [2022-11-22 00:15:36,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:15:36" (3/3) ... [2022-11-22 00:15:36,530 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-22 00:15:36,546 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:15:36,546 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 00:15:36,721 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:15:36,729 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;@59a33269, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:15:36,729 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 00:15:36,756 INFO L276 IsEmpty]: Start isEmpty. Operand has 6719 states, 4306 states have (on average 1.3420808174640038) internal successors, (5779), 4398 states have internal predecessors, (5779), 2170 states have call successors, (2170), 245 states have call predecessors, (2170), 244 states have return successors, (2164), 2156 states have call predecessors, (2164), 2164 states have call successors, (2164) [2022-11-22 00:15:36,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-11-22 00:15:36,790 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:15:36,792 INFO L195 NwaCegarLoop]: trace histogram [24, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:15:36,793 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:15:36,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:15:36,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1161359649, now seen corresponding path program 1 times [2022-11-22 00:15:36,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:15:36,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803221802] [2022-11-22 00:15:36,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:15:36,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:15:37,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:15:39,260 INFO L134 CoverageAnalysis]: Checked inductivity of 2070 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2070 trivial. 0 not checked. [2022-11-22 00:15:39,260 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:15:39,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803221802] [2022-11-22 00:15:39,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803221802] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:15:39,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:15:39,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:15:39,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135343354] [2022-11-22 00:15:39,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:15:39,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:15:39,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:15:39,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:15:39,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:15:39,334 INFO L87 Difference]: Start difference. First operand has 6719 states, 4306 states have (on average 1.3420808174640038) internal successors, (5779), 4398 states have internal predecessors, (5779), 2170 states have call successors, (2170), 245 states have call predecessors, (2170), 244 states have return successors, (2164), 2156 states have call predecessors, (2164), 2164 states have call successors, (2164) Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-22 00:15:47,342 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 00:15:54,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:15:56,614 WARN L539 Checker$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 00:15:58,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:16:03,173 WARN L539 Checker$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 00:16:05,258 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 00:16:06,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:16:06,122 INFO L93 Difference]: Finished difference Result 19578 states and 29528 transitions. [2022-11-22 00:16:06,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:16:06,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 250 [2022-11-22 00:16:06,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:16:06,306 INFO L225 Difference]: With dead ends: 19578 [2022-11-22 00:16:06,306 INFO L226 Difference]: Without dead ends: 12896 [2022-11-22 00:16:06,589 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 00:16:06,594 INFO L413 NwaCegarLoop]: 11359 mSDtfsCounter, 9317 mSDsluCounter, 9245 mSDsCounter, 0 mSdLazyCounter, 1641 mSolverCounterSat, 7 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9317 SdHoareTripleChecker+Valid, 20604 SdHoareTripleChecker+Invalid, 1653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1641 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.8s IncrementalHoareTripleChecker+Time [2022-11-22 00:16:06,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9317 Valid, 20604 Invalid, 1653 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1641 Invalid, 5 Unknown, 0 Unchecked, 25.8s Time] [2022-11-22 00:16:06,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12896 states. [2022-11-22 00:16:07,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12896 to 12890. [2022-11-22 00:16:07,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12890 states, 8224 states have (on average 1.3362110894941635) internal successors, (10989), 8402 states have internal predecessors, (10989), 4186 states have call successors, (4186), 480 states have call predecessors, (4186), 479 states have return successors, (4183), 4168 states have call predecessors, (4183), 4183 states have call successors, (4183) [2022-11-22 00:16:07,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12890 states to 12890 states and 19358 transitions. [2022-11-22 00:16:07,887 INFO L78 Accepts]: Start accepts. Automaton has 12890 states and 19358 transitions. Word has length 250 [2022-11-22 00:16:07,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:16:07,893 INFO L495 AbstractCegarLoop]: Abstraction has 12890 states and 19358 transitions. [2022-11-22 00:16:07,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-22 00:16:07,894 INFO L276 IsEmpty]: Start isEmpty. Operand 12890 states and 19358 transitions. [2022-11-22 00:16:07,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-11-22 00:16:07,916 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:16:07,917 INFO L195 NwaCegarLoop]: trace histogram [27, 23, 23, 23, 23, 23, 23, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:16:07,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:16:07,917 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:16:07,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:16:07,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1835906075, now seen corresponding path program 1 times [2022-11-22 00:16:07,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:16:07,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392223905] [2022-11-22 00:16:07,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:16:07,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:16:08,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:16:10,944 INFO L134 CoverageAnalysis]: Checked inductivity of 2247 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2247 trivial. 0 not checked. [2022-11-22 00:16:10,944 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:16:10,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392223905] [2022-11-22 00:16:10,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392223905] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:16:10,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:16:10,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:16:10,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935937394] [2022-11-22 00:16:10,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:16:10,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:16:10,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:16:10,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:16:10,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:16:10,950 INFO L87 Difference]: Start difference. First operand 12890 states and 19358 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-22 00:16:21,124 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 00:16:30,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:16:34,658 WARN L539 Checker$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 00:16:36,765 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 00:16:39,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:16:39,313 INFO L93 Difference]: Finished difference Result 19323 states and 28987 transitions. [2022-11-22 00:16:39,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:16:39,314 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 292 [2022-11-22 00:16:39,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:16:39,487 INFO L225 Difference]: With dead ends: 19323 [2022-11-22 00:16:39,487 INFO L226 Difference]: Without dead ends: 19307 [2022-11-22 00:16:39,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:16:39,510 INFO L413 NwaCegarLoop]: 11312 mSDtfsCounter, 9322 mSDsluCounter, 20504 mSDsCounter, 0 mSdLazyCounter, 2438 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9323 SdHoareTripleChecker+Valid, 31816 SdHoareTripleChecker+Invalid, 2442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2438 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.5s IncrementalHoareTripleChecker+Time [2022-11-22 00:16:39,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9323 Valid, 31816 Invalid, 2442 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2438 Invalid, 4 Unknown, 0 Unchecked, 27.5s Time] [2022-11-22 00:16:39,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19307 states. [2022-11-22 00:16:41,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19307 to 19297. [2022-11-22 00:16:41,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19297 states, 12283 states have (on average 1.3342017422453798) internal successors, (16388), 12550 states have internal predecessors, (16388), 6282 states have call successors, (6282), 732 states have call predecessors, (6282), 731 states have return successors, (6280), 6256 states have call predecessors, (6280), 6279 states have call successors, (6280) [2022-11-22 00:16:41,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19297 states to 19297 states and 28950 transitions. [2022-11-22 00:16:41,281 INFO L78 Accepts]: Start accepts. Automaton has 19297 states and 28950 transitions. Word has length 292 [2022-11-22 00:16:41,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:16:41,283 INFO L495 AbstractCegarLoop]: Abstraction has 19297 states and 28950 transitions. [2022-11-22 00:16:41,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-22 00:16:41,283 INFO L276 IsEmpty]: Start isEmpty. Operand 19297 states and 28950 transitions. [2022-11-22 00:16:41,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2022-11-22 00:16:41,358 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:16:41,359 INFO L195 NwaCegarLoop]: trace histogram [29, 25, 25, 25, 25, 25, 25, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:16:41,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:16:41,361 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:16:41,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:16:41,361 INFO L85 PathProgramCache]: Analyzing trace with hash 834225813, now seen corresponding path program 1 times [2022-11-22 00:16:41,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:16:41,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085202786] [2022-11-22 00:16:41,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:16:41,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:16:41,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:16:43,165 INFO L134 CoverageAnalysis]: Checked inductivity of 2647 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2644 trivial. 0 not checked. [2022-11-22 00:16:43,165 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:16:43,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085202786] [2022-11-22 00:16:43,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085202786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:16:43,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:16:43,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:16:43,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079454146] [2022-11-22 00:16:43,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:16:43,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:16:43,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:16:43,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:16:43,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:16:43,169 INFO L87 Difference]: Start difference. First operand 19297 states and 28950 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-22 00:16:46,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:16:54,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:16:56,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:17:01,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:17:04,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:17:06,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:17:08,401 WARN L539 Checker$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 00:17:09,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:17:09,687 INFO L93 Difference]: Finished difference Result 49439 states and 74198 transitions. [2022-11-22 00:17:09,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:17:09,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 410 [2022-11-22 00:17:09,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:17:09,952 INFO L225 Difference]: With dead ends: 49439 [2022-11-22 00:17:09,952 INFO L226 Difference]: Without dead ends: 30189 [2022-11-22 00:17:10,132 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 00:17:10,135 INFO L413 NwaCegarLoop]: 11537 mSDtfsCounter, 8532 mSDsluCounter, 9217 mSDsCounter, 0 mSdLazyCounter, 1729 mSolverCounterSat, 19 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8533 SdHoareTripleChecker+Valid, 20754 SdHoareTripleChecker+Invalid, 1752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1729 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.4s IncrementalHoareTripleChecker+Time [2022-11-22 00:17:10,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8533 Valid, 20754 Invalid, 1752 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 1729 Invalid, 4 Unknown, 0 Unchecked, 25.4s Time] [2022-11-22 00:17:10,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30189 states. [2022-11-22 00:17:12,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30189 to 30177. [2022-11-22 00:17:12,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30177 states, 19277 states have (on average 1.3323131192612958) internal successors, (25683), 19686 states have internal predecessors, (25683), 9788 states have call successors, (9788), 1113 states have call predecessors, (9788), 1111 states have return successors, (9788), 9740 states have call predecessors, (9788), 9785 states have call successors, (9788) [2022-11-22 00:17:13,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30177 states to 30177 states and 45259 transitions. [2022-11-22 00:17:13,224 INFO L78 Accepts]: Start accepts. Automaton has 30177 states and 45259 transitions. Word has length 410 [2022-11-22 00:17:13,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:17:13,226 INFO L495 AbstractCegarLoop]: Abstraction has 30177 states and 45259 transitions. [2022-11-22 00:17:13,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-22 00:17:13,226 INFO L276 IsEmpty]: Start isEmpty. Operand 30177 states and 45259 transitions. [2022-11-22 00:17:13,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2022-11-22 00:17:13,361 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:17:13,361 INFO L195 NwaCegarLoop]: trace histogram [32, 25, 25, 25, 25, 25, 25, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:17:13,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 00:17:13,362 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:17:13,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:17:13,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1317952604, now seen corresponding path program 1 times [2022-11-22 00:17:13,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:17:13,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157156358] [2022-11-22 00:17:13,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:17:13,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:17:13,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:17:15,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2921 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2906 trivial. 0 not checked. [2022-11-22 00:17:15,067 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:17:15,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157156358] [2022-11-22 00:17:15,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157156358] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:17:15,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:17:15,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:17:15,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981165646] [2022-11-22 00:17:15,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:17:15,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:17:15,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:17:15,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:17:15,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:17:15,071 INFO L87 Difference]: Start difference. First operand 30177 states and 45259 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-22 00:17:23,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:17:27,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:17:31,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:17:34,402 WARN L539 Checker$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 00:17:36,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:17:39,309 WARN L539 Checker$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 00:17:44,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:17:46,620 WARN L539 Checker$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 00:17:47,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:17:47,997 INFO L93 Difference]: Finished difference Result 65826 states and 98759 transitions. [2022-11-22 00:17:47,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:17:47,998 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 457 [2022-11-22 00:17:47,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:17:48,559 INFO L225 Difference]: With dead ends: 65826 [2022-11-22 00:17:48,560 INFO L226 Difference]: Without dead ends: 41572 [2022-11-22 00:17:48,699 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 00:17:48,704 INFO L413 NwaCegarLoop]: 17120 mSDtfsCounter, 8525 mSDsluCounter, 9215 mSDsCounter, 0 mSdLazyCounter, 2331 mSolverCounterSat, 15 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8526 SdHoareTripleChecker+Valid, 26335 SdHoareTripleChecker+Invalid, 2351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2331 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.4s IncrementalHoareTripleChecker+Time [2022-11-22 00:17:48,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8526 Valid, 26335 Invalid, 2351 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 2331 Invalid, 5 Unknown, 0 Unchecked, 31.4s Time] [2022-11-22 00:17:48,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41572 states. [2022-11-22 00:17:51,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41572 to 41560. [2022-11-22 00:17:51,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41560 states, 26556 states have (on average 1.3317894261183914) internal successors, (35367), 27122 states have internal predecessors, (35367), 13480 states have call successors, (13480), 1526 states have call predecessors, (13480), 1523 states have return successors, (13482), 13408 states have call predecessors, (13482), 13477 states have call successors, (13482) [2022-11-22 00:17:51,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41560 states to 41560 states and 62329 transitions. [2022-11-22 00:17:51,651 INFO L78 Accepts]: Start accepts. Automaton has 41560 states and 62329 transitions. Word has length 457 [2022-11-22 00:17:51,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:17:51,654 INFO L495 AbstractCegarLoop]: Abstraction has 41560 states and 62329 transitions. [2022-11-22 00:17:51,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-22 00:17:51,655 INFO L276 IsEmpty]: Start isEmpty. Operand 41560 states and 62329 transitions. [2022-11-22 00:17:51,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2022-11-22 00:17:51,870 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:17:51,871 INFO L195 NwaCegarLoop]: trace histogram [34, 25, 25, 25, 25, 25, 25, 13, 13, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:17:51,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 00:17:51,872 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:17:51,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:17:51,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1728366214, now seen corresponding path program 1 times [2022-11-22 00:17:51,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:17:51,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816998363] [2022-11-22 00:17:51,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:17:51,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:17:52,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:17:55,643 INFO L134 CoverageAnalysis]: Checked inductivity of 3217 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3217 trivial. 0 not checked. [2022-11-22 00:17:55,643 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:17:55,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816998363] [2022-11-22 00:17:55,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816998363] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:17:55,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:17:55,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:17:55,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706703476] [2022-11-22 00:17:55,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:17:55,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:17:55,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:17:55,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:17:55,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:17:55,648 INFO L87 Difference]: Start difference. First operand 41560 states and 62329 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2022-11-22 00:18:06,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:18:08,459 WARN L539 Checker$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 00:18:14,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:18:16,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:18:20,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:18:24,862 WARN L539 Checker$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 00:18:27,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:18:27,647 INFO L93 Difference]: Finished difference Result 59429 states and 89139 transitions. [2022-11-22 00:18:27,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:18:27,648 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) Word has length 519 [2022-11-22 00:18:27,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:18:28,095 INFO L225 Difference]: With dead ends: 59429 [2022-11-22 00:18:28,095 INFO L226 Difference]: Without dead ends: 59399 [2022-11-22 00:18:28,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:18:28,128 INFO L413 NwaCegarLoop]: 11355 mSDtfsCounter, 9615 mSDsluCounter, 20547 mSDsCounter, 0 mSdLazyCounter, 2427 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9616 SdHoareTripleChecker+Valid, 31902 SdHoareTripleChecker+Invalid, 2432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2427 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:18:28,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9616 Valid, 31902 Invalid, 2432 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2427 Invalid, 5 Unknown, 0 Unchecked, 30.3s Time] [2022-11-22 00:18:28,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59399 states. [2022-11-22 00:18:31,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59399 to 59360. [2022-11-22 00:18:31,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59360 states, 37944 states have (on average 1.3322000843348092) internal successors, (50549), 38752 states have internal predecessors, (50549), 19240 states have call successors, (19240), 2178 states have call predecessors, (19240), 2175 states have return successors, (19245), 19140 states have call predecessors, (19245), 19237 states have call successors, (19245) [2022-11-22 00:18:32,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59360 states to 59360 states and 89034 transitions. [2022-11-22 00:18:32,340 INFO L78 Accepts]: Start accepts. Automaton has 59360 states and 89034 transitions. Word has length 519 [2022-11-22 00:18:32,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:18:32,341 INFO L495 AbstractCegarLoop]: Abstraction has 59360 states and 89034 transitions. [2022-11-22 00:18:32,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2022-11-22 00:18:32,342 INFO L276 IsEmpty]: Start isEmpty. Operand 59360 states and 89034 transitions. [2022-11-22 00:18:32,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 882 [2022-11-22 00:18:32,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:18:32,944 INFO L195 NwaCegarLoop]: trace histogram [34, 25, 25, 25, 25, 25, 25, 14, 13, 13, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:18:32,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 00:18:32,945 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:18:32,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:18:32,945 INFO L85 PathProgramCache]: Analyzing trace with hash 717462609, now seen corresponding path program 1 times [2022-11-22 00:18:32,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:18:32,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062022255] [2022-11-22 00:18:32,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:18:32,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:18:33,960 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 00:18:33,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [433849873] [2022-11-22 00:18:33,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:18:33,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:18:33,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b5b5b8-9e01-4de1-97ae-916e99be3714/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:18:33,967 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b5b5b8-9e01-4de1-97ae-916e99be3714/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:18:33,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b5b5b8-9e01-4de1-97ae-916e99be3714/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 00:18:40,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:18:41,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 23038 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 00:18:41,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:18:41,335 INFO L134 CoverageAnalysis]: Checked inductivity of 3507 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 3189 trivial. 0 not checked. [2022-11-22 00:18:41,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:18:41,335 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:18:41,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062022255] [2022-11-22 00:18:41,336 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 00:18:41,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433849873] [2022-11-22 00:18:41,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433849873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:18:41,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:18:41,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:18:41,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850764048] [2022-11-22 00:18:41,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:18:41,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:18:41,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:18:41,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:18:41,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:18:41,339 INFO L87 Difference]: Start difference. First operand 59360 states and 89034 transitions. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 3 states have call successors, (128), 2 states have call predecessors, (128), 2 states have return successors, (127), 3 states have call predecessors, (127), 3 states have call successors, (127) [2022-11-22 00:18:52,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:18:55,107 WARN L539 Checker$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 00:18:57,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:19:01,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:19:04,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:19:06,180 WARN L539 Checker$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 00:19:10,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:19:10,264 INFO L93 Difference]: Finished difference Result 81378 states and 122451 transitions. [2022-11-22 00:19:10,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:19:10,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 3 states have call successors, (128), 2 states have call predecessors, (128), 2 states have return successors, (127), 3 states have call predecessors, (127), 3 states have call successors, (127) Word has length 881 [2022-11-22 00:19:10,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:19:10,661 INFO L225 Difference]: With dead ends: 81378 [2022-11-22 00:19:10,662 INFO L226 Difference]: Without dead ends: 63325 [2022-11-22 00:19:10,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 880 GetRequests, 879 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 00:19:10,807 INFO L413 NwaCegarLoop]: 11284 mSDtfsCounter, 1230 mSDsluCounter, 9774 mSDsCounter, 0 mSdLazyCounter, 1868 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1747 SdHoareTripleChecker+Valid, 21058 SdHoareTripleChecker+Invalid, 1874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1868 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.7s IncrementalHoareTripleChecker+Time [2022-11-22 00:19:10,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1747 Valid, 21058 Invalid, 1874 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1868 Invalid, 5 Unknown, 0 Unchecked, 26.7s Time] [2022-11-22 00:19:10,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63325 states. [2022-11-22 00:19:15,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63325 to 59365. [2022-11-22 00:19:15,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59365 states, 37948 states have (on average 1.3321914198376725) internal successors, (50554), 38756 states have internal predecessors, (50554), 19241 states have call successors, (19241), 2178 states have call predecessors, (19241), 2175 states have return successors, (19246), 19141 states have call predecessors, (19246), 19238 states have call successors, (19246) [2022-11-22 00:19:16,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59365 states to 59365 states and 89041 transitions. [2022-11-22 00:19:16,186 INFO L78 Accepts]: Start accepts. Automaton has 59365 states and 89041 transitions. Word has length 881 [2022-11-22 00:19:16,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:19:16,188 INFO L495 AbstractCegarLoop]: Abstraction has 59365 states and 89041 transitions. [2022-11-22 00:19:16,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 3 states have call successors, (128), 2 states have call predecessors, (128), 2 states have return successors, (127), 3 states have call predecessors, (127), 3 states have call successors, (127) [2022-11-22 00:19:16,188 INFO L276 IsEmpty]: Start isEmpty. Operand 59365 states and 89041 transitions. [2022-11-22 00:19:16,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 926 [2022-11-22 00:19:16,529 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:19:16,530 INFO L195 NwaCegarLoop]: trace histogram [34, 25, 25, 25, 25, 25, 25, 17, 13, 13, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:19:16,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b5b5b8-9e01-4de1-97ae-916e99be3714/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-22 00:19:16,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b5b5b8-9e01-4de1-97ae-916e99be3714/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:19:16,735 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:19:16,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:19:16,736 INFO L85 PathProgramCache]: Analyzing trace with hash 824475006, now seen corresponding path program 1 times [2022-11-22 00:19:16,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:19:16,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204174288] [2022-11-22 00:19:16,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:19:16,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:19:17,775 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 00:19:17,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [856615516] [2022-11-22 00:19:17,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:19:17,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:19:17,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b5b5b8-9e01-4de1-97ae-916e99be3714/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:19:17,779 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b5b5b8-9e01-4de1-97ae-916e99be3714/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:19:17,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b5b5b8-9e01-4de1-97ae-916e99be3714/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 00:19:25,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:19:25,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 23514 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 00:19:25,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:19:25,577 INFO L134 CoverageAnalysis]: Checked inductivity of 3635 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 3389 trivial. 0 not checked. [2022-11-22 00:19:25,578 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:19:25,578 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:19:25,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204174288] [2022-11-22 00:19:25,578 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 00:19:25,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856615516] [2022-11-22 00:19:25,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856615516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:19:25,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:19:25,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:19:25,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41251222] [2022-11-22 00:19:25,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:19:25,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:19:25,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:19:25,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:19:25,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:19:25,583 INFO L87 Difference]: Start difference. First operand 59365 states and 89041 transitions. Second operand has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 2 states have call successors, (128), 2 states have call predecessors, (128), 2 states have return successors, (127), 2 states have call predecessors, (127), 2 states have call successors, (127) [2022-11-22 00:19:38,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:19:40,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:19:43,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:19:45,793 WARN L539 Checker$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 00:19:48,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:19:55,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:20:03,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:20:05,861 WARN L539 Checker$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 00:20:10,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:20:10,928 INFO L93 Difference]: Finished difference Result 122635 states and 186503 transitions. [2022-11-22 00:20:10,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 00:20:10,929 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 2 states have call successors, (128), 2 states have call predecessors, (128), 2 states have return successors, (127), 2 states have call predecessors, (127), 2 states have call successors, (127) Word has length 925 [2022-11-22 00:20:10,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:20:11,439 INFO L225 Difference]: With dead ends: 122635 [2022-11-22 00:20:11,440 INFO L226 Difference]: Without dead ends: 86777 [2022-11-22 00:20:11,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 926 GetRequests, 923 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:20:11,656 INFO L413 NwaCegarLoop]: 13861 mSDtfsCounter, 3742 mSDsluCounter, 23411 mSDsCounter, 0 mSdLazyCounter, 3404 mSolverCounterSat, 1007 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4796 SdHoareTripleChecker+Valid, 37272 SdHoareTripleChecker+Invalid, 4416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1007 IncrementalHoareTripleChecker+Valid, 3404 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.6s IncrementalHoareTripleChecker+Time [2022-11-22 00:20:11,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4796 Valid, 37272 Invalid, 4416 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1007 Valid, 3404 Invalid, 5 Unknown, 0 Unchecked, 41.6s Time] [2022-11-22 00:20:11,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86777 states. [2022-11-22 00:20:17,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86777 to 59369. [2022-11-22 00:20:17,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59369 states, 37952 states have (on average 1.332156408094435) internal successors, (50558), 38760 states have internal predecessors, (50558), 19241 states have call successors, (19241), 2178 states have call predecessors, (19241), 2175 states have return successors, (19246), 19141 states have call predecessors, (19246), 19238 states have call successors, (19246) [2022-11-22 00:20:18,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59369 states to 59369 states and 89045 transitions. [2022-11-22 00:20:18,270 INFO L78 Accepts]: Start accepts. Automaton has 59369 states and 89045 transitions. Word has length 925 [2022-11-22 00:20:18,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:20:18,271 INFO L495 AbstractCegarLoop]: Abstraction has 59369 states and 89045 transitions. [2022-11-22 00:20:18,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 2 states have call successors, (128), 2 states have call predecessors, (128), 2 states have return successors, (127), 2 states have call predecessors, (127), 2 states have call successors, (127) [2022-11-22 00:20:18,271 INFO L276 IsEmpty]: Start isEmpty. Operand 59369 states and 89045 transitions. [2022-11-22 00:20:18,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 944 [2022-11-22 00:20:18,595 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:20:18,596 INFO L195 NwaCegarLoop]: trace histogram [34, 25, 25, 25, 25, 25, 25, 18, 13, 13, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:20:18,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b5b5b8-9e01-4de1-97ae-916e99be3714/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 00:20:18,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b5b5b8-9e01-4de1-97ae-916e99be3714/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:20:18,797 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:20:18,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:20:18,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1521337543, now seen corresponding path program 1 times [2022-11-22 00:20:18,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:20:18,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062326286] [2022-11-22 00:20:18,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:20:18,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:20:19,860 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 00:20:19,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1698039687] [2022-11-22 00:20:19,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:20:19,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:20:19,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b5b5b8-9e01-4de1-97ae-916e99be3714/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:20:19,862 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b5b5b8-9e01-4de1-97ae-916e99be3714/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:20:19,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b5b5b8-9e01-4de1-97ae-916e99be3714/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 00:20:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:20:27,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 23773 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 00:20:27,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:20:27,862 INFO L134 CoverageAnalysis]: Checked inductivity of 3669 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 3421 trivial. 0 not checked. [2022-11-22 00:20:27,862 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:20:27,863 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:20:27,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062326286] [2022-11-22 00:20:27,863 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 00:20:27,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698039687] [2022-11-22 00:20:27,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698039687] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:20:27,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:20:27,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:20:27,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840796664] [2022-11-22 00:20:27,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:20:27,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:20:27,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:20:27,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:20:27,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:20:27,869 INFO L87 Difference]: Start difference. First operand 59369 states and 89045 transitions. Second operand has 4 states, 4 states have (on average 92.5) internal successors, (370), 4 states have internal predecessors, (370), 2 states have call successors, (130), 2 states have call predecessors, (130), 2 states have return successors, (129), 2 states have call predecessors, (129), 2 states have call successors, (129) [2022-11-22 00:20:34,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:20:44,608 WARN L539 Checker$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 00:20:47,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:20:57,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:20:59,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:21:01,498 WARN L539 Checker$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 00:21:05,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:21:05,048 INFO L93 Difference]: Finished difference Result 103187 states and 155538 transitions. [2022-11-22 00:21:05,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:21:05,048 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 92.5) internal successors, (370), 4 states have internal predecessors, (370), 2 states have call successors, (130), 2 states have call predecessors, (130), 2 states have return successors, (129), 2 states have call predecessors, (129), 2 states have call successors, (129) Word has length 943 [2022-11-22 00:21:05,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:21:05,442 INFO L225 Difference]: With dead ends: 103187 [2022-11-22 00:21:05,442 INFO L226 Difference]: Without dead ends: 67325 [2022-11-22 00:21:05,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 944 GetRequests, 941 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:21:05,793 INFO L413 NwaCegarLoop]: 11320 mSDtfsCounter, 2573 mSDsluCounter, 19549 mSDsCounter, 0 mSdLazyCounter, 2674 mSolverCounterSat, 1027 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2573 SdHoareTripleChecker+Valid, 30869 SdHoareTripleChecker+Invalid, 3705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1027 IncrementalHoareTripleChecker+Valid, 2674 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.5s IncrementalHoareTripleChecker+Time [2022-11-22 00:21:05,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2573 Valid, 30869 Invalid, 3705 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1027 Valid, 2674 Invalid, 4 Unknown, 0 Unchecked, 33.5s Time] [2022-11-22 00:21:05,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67325 states.