./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 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8523eb15-0892-49c9-a565-419a07baa12a/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8523eb15-0892-49c9-a565-419a07baa12a/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8523eb15-0892-49c9-a565-419a07baa12a/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8523eb15-0892-49c9-a565-419a07baa12a/bin/utaipan-7li7fVZpFI/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_8523eb15-0892-49c9-a565-419a07baa12a/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8523eb15-0892-49c9-a565-419a07baa12a/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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-5e519f3 [2022-11-03 03:52:03,427 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:52:03,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:52:03,453 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:52:03,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:52:03,455 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:52:03,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:52:03,458 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:52:03,459 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:52:03,460 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:52:03,461 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:52:03,462 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:52:03,463 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:52:03,464 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:52:03,465 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:52:03,466 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:52:03,467 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:52:03,468 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:52:03,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:52:03,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:52:03,472 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:52:03,473 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:52:03,475 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:52:03,475 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:52:03,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:52:03,479 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:52:03,479 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:52:03,480 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:52:03,481 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:52:03,482 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:52:03,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:52:03,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:52:03,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:52:03,485 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:52:03,486 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:52:03,486 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:52:03,487 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:52:03,487 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:52:03,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:52:03,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:52:03,489 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:52:03,490 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8523eb15-0892-49c9-a565-419a07baa12a/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:52:03,512 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:52:03,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:52:03,513 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:52:03,513 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:52:03,514 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:52:03,514 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:52:03,514 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:52:03,515 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:52:03,515 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:52:03,515 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:52:03,515 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:52:03,516 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:52:03,516 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:52:03,516 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:52:03,516 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:52:03,517 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:52:03,517 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:52:03,517 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:52:03,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:52:03,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:52:03,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:52:03,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:52:03,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:52:03,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:52:03,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:52:03,520 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:52:03,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:52:03,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:52:03,520 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:52:03,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:52:03,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:52:03,521 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:52:03,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:52:03,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:52:03,522 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:52:03,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:52:03,522 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:52:03,523 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:52:03,523 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_8523eb15-0892-49c9-a565-419a07baa12a/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8523eb15-0892-49c9-a565-419a07baa12a/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e282dee958ab2234ea07036ebd12b370ba9c340bf289a9a8f423d22b133c3ff1 [2022-11-03 03:52:03,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:52:03,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:52:03,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:52:03,795 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:52:03,796 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:52:03,797 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8523eb15-0892-49c9-a565-419a07baa12a/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-03 03:52:03,879 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8523eb15-0892-49c9-a565-419a07baa12a/bin/utaipan-7li7fVZpFI/data/5c6c212ba/09648ea051ad4e0cad38a6054bddde7a/FLAG617878462 [2022-11-03 03:52:05,232 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:52:05,233 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8523eb15-0892-49c9-a565-419a07baa12a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-03 03:52:05,369 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8523eb15-0892-49c9-a565-419a07baa12a/bin/utaipan-7li7fVZpFI/data/5c6c212ba/09648ea051ad4e0cad38a6054bddde7a/FLAG617878462 [2022-11-03 03:52:05,717 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8523eb15-0892-49c9-a565-419a07baa12a/bin/utaipan-7li7fVZpFI/data/5c6c212ba/09648ea051ad4e0cad38a6054bddde7a [2022-11-03 03:52:05,720 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:52:05,721 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:52:05,727 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:52:05,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:52:05,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:52:05,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:52:05" (1/1) ... [2022-11-03 03:52:05,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@372ba150 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:05, skipping insertion in model container [2022-11-03 03:52:05,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:52:05" (1/1) ... [2022-11-03 03:52:05,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:52:06,070 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:52:14,219 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8523eb15-0892-49c9-a565-419a07baa12a/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] [2022-11-03 03:52:14,251 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:52:14,314 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:52:15,228 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8523eb15-0892-49c9-a565-419a07baa12a/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] [2022-11-03 03:52:15,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:52:15,645 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:52:15,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:15 WrapperNode [2022-11-03 03:52:15,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:52:15,647 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:52:15,647 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:52:15,647 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:52:15,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:15" (1/1) ... [2022-11-03 03:52:15,950 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:15" (1/1) ... [2022-11-03 03:52:16,760 INFO L138 Inliner]: procedures = 711, calls = 16186, calls flagged for inlining = 397, calls inlined = 350, statements flattened = 28818 [2022-11-03 03:52:16,777 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:52:16,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:52:16,778 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:52:16,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:52:16,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:15" (1/1) ... [2022-11-03 03:52:16,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:15" (1/1) ... [2022-11-03 03:52:16,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:15" (1/1) ... [2022-11-03 03:52:16,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:15" (1/1) ... [2022-11-03 03:52:17,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:15" (1/1) ... [2022-11-03 03:52:17,623 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:15" (1/1) ... [2022-11-03 03:52:17,901 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:15" (1/1) ... [2022-11-03 03:52:17,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:15" (1/1) ... [2022-11-03 03:52:18,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:52:18,240 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:52:18,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:52:18,240 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:52:18,241 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:15" (1/1) ... [2022-11-03 03:52:18,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:52:18,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8523eb15-0892-49c9-a565-419a07baa12a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:52:18,302 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8523eb15-0892-49c9-a565-419a07baa12a/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:52:18,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8523eb15-0892-49c9-a565-419a07baa12a/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:52:18,377 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-03 03:52:18,377 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-03 03:52:18,377 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_fc_after_link_up [2022-11-03 03:52:18,377 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_fc_after_link_up [2022-11-03 03:52:18,378 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-03 03:52:18,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-03 03:52:18,378 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_collision_dist [2022-11-03 03:52:18,378 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_collision_dist [2022-11-03 03:52:18,378 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_ee_clk [2022-11-03 03:52:18,379 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_ee_clk [2022-11-03 03:52:18,379 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-11-03 03:52:18,379 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-11-03 03:52:18,379 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-03 03:52:18,379 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-03 03:52:18,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 03:52:18,380 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 03:52:18,380 INFO L130 BoogieDeclarations]: Found specification of procedure reg_pattern_test [2022-11-03 03:52:18,380 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_pattern_test [2022-11-03 03:52:18,380 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-03 03:52:18,380 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-03 03:52:18,381 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 03:52:18,381 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 03:52:18,381 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-03 03:52:18,381 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-03 03:52:18,381 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_eeprom [2022-11-03 03:52:18,381 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_eeprom [2022-11-03 03:52:18,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 03:52:18,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 03:52:18,382 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_manageability [2022-11-03 03:52:18,382 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_manageability [2022-11-03 03:52:18,382 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_in_ee_bits [2022-11-03 03:52:18,383 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_in_ee_bits [2022-11-03 03:52:18,383 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down_and_stop [2022-11-03 03:52:18,383 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down_and_stop [2022-11-03 03:52:18,383 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-03 03:52:18,383 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-03 03:52:18,384 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-11-03 03:52:18,384 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-11-03 03:52:18,384 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-03 03:52:18,385 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-03 03:52:18,385 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_unmap_and_free_tx_resource [2022-11-03 03:52:18,385 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_unmap_and_free_tx_resource [2022-11-03 03:52:18,385 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-03 03:52:18,385 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-03 03:52:18,386 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_get_info [2022-11-03 03:52:18,386 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_get_info [2022-11-03 03:52:18,386 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 03:52:18,386 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 03:52:18,387 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-03 03:52:18,388 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-03 03:52:18,388 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_do_read_eeprom [2022-11-03 03:52:18,388 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_do_read_eeprom [2022-11-03 03:52:18,388 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_rctl [2022-11-03 03:52:18,389 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_rctl [2022-11-03 03:52:18,389 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-03 03:52:18,389 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-03 03:52:18,389 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set [2022-11-03 03:52:18,390 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set [2022-11-03 03:52:18,390 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2022-11-03 03:52:18,391 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2022-11-03 03:52:18,391 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 03:52:18,391 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 03:52:18,391 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset [2022-11-03 03:52:18,392 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset [2022-11-03 03:52:18,392 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2022-11-03 03:52:18,392 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2022-11-03 03:52:18,392 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_eeprom_params [2022-11-03 03:52:18,392 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_eeprom_params [2022-11-03 03:52:18,392 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2022-11-03 03:52:18,393 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2022-11-03 03:52:18,393 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-03 03:52:18,394 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-03 03:52:18,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 03:52:18,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 03:52:18,394 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 03:52:18,394 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 03:52:18,395 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-03 03:52:18,395 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-03 03:52:18,395 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 03:52:18,395 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 03:52:18,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 03:52:18,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 03:52:18,396 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 03:52:18,397 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 03:52:18,397 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-03 03:52:18,397 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-03 03:52:18,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:52:18,397 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-03 03:52:18,398 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-03 03:52:18,398 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg [2022-11-03 03:52:18,399 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg [2022-11-03 03:52:18,399 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_speed_and_duplex [2022-11-03 03:52:18,400 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_speed_and_duplex [2022-11-03 03:52:18,400 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_standby_eeprom [2022-11-03 03:52:18,400 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_standby_eeprom [2022-11-03 03:52:18,400 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_bit [2022-11-03 03:52:18,400 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_bit [2022-11-03 03:52:18,400 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-03 03:52:18,401 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-03 03:52:18,401 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure_rx [2022-11-03 03:52:18,401 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure_rx [2022-11-03 03:52:18,401 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 03:52:18,401 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 03:52:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_hw_dev [2022-11-03 03:52:18,402 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_hw_dev [2022-11-03 03:52:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_stats [2022-11-03 03:52:18,402 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_stats [2022-11-03 03:52:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_validate_option [2022-11-03 03:52:18,403 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_validate_option [2022-11-03 03:52:18,403 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 03:52:18,404 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 03:52:18,406 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 03:52:18,407 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 03:52:18,407 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link [2022-11-03 03:52:18,407 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link [2022-11-03 03:52:18,408 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_irq [2022-11-03 03:52:18,408 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_irq [2022-11-03 03:52:18,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 03:52:18,409 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-03 03:52:18,409 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-03 03:52:18,414 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_link [2022-11-03 03:52:18,414 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_link [2022-11-03 03:52:18,415 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_vlan_mode [2022-11-03 03:52:18,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_vlan_mode [2022-11-03 03:52:18,415 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset [2022-11-03 03:52:18,415 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset [2022-11-03 03:52:18,415 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 03:52:18,415 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 03:52:18,416 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_dsp_after_link_change [2022-11-03 03:52:18,416 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_dsp_after_link_change [2022-11-03 03:52:18,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 03:52:18,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 03:52:18,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 03:52:18,416 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_maybe_stop_tx [2022-11-03 03:52:18,416 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_maybe_stop_tx [2022-11-03 03:52:18,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:52:18,417 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 03:52:18,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 03:52:18,417 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shutdown [2022-11-03 03:52:18,417 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shutdown [2022-11-03 03:52:18,417 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2022-11-03 03:52:18,418 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2022-11-03 03:52:18,418 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_used [2022-11-03 03:52:18,418 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_used [2022-11-03 03:52:18,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 03:52:18,418 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 03:52:18,418 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_disable_receiver [2022-11-03 03:52:18,418 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_disable_receiver [2022-11-03 03:52:18,419 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_kill_vid [2022-11-03 03:52:18,419 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_kill_vid [2022-11-03 03:52:18,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-03 03:52:18,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-03 03:52:18,419 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_force_mac_fc [2022-11-03 03:52:18,419 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_force_mac_fc [2022-11-03 03:52:18,420 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-03 03:52:18,420 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-03 03:52:18,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 03:52:18,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 03:52:18,420 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2022-11-03 03:52:18,420 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2022-11-03 03:52:18,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 03:52:18,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 03:52:18,421 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_leave_82542_rst [2022-11-03 03:52:18,421 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_leave_82542_rst [2022-11-03 03:52:18,421 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_has_link [2022-11-03 03:52:18,421 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_has_link [2022-11-03 03:52:18,421 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-03 03:52:18,422 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-03 03:52:18,422 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 03:52:18,422 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 03:52:18,422 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2022-11-03 03:52:18,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2022-11-03 03:52:18,422 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_tx_resources [2022-11-03 03:52:18,423 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_tx_resources [2022-11-03 03:52:18,423 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-03 03:52:18,423 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-03 03:52:18,423 INFO L130 BoogieDeclarations]: Found specification of procedure pci_wake_from_d3 [2022-11-03 03:52:18,423 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_wake_from_d3 [2022-11-03 03:52:18,423 INFO L130 BoogieDeclarations]: Found specification of procedure reg_set_and_check [2022-11-03 03:52:18,424 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_set_and_check [2022-11-03 03:52:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:52:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-03 03:52:18,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-03 03:52:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 03:52:18,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 03:52:18,426 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_netpoll [2022-11-03 03:52:18,426 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_netpoll [2022-11-03 03:52:18,426 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-03 03:52:18,426 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-03 03:52:18,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:52:18,427 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-03 03:52:18,427 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-03 03:52:18,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 03:52:18,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 03:52:18,427 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 03:52:18,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 03:52:18,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 03:52:18,428 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_rx_mode [2022-11-03 03:52:18,428 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_rx_mode [2022-11-03 03:52:18,428 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 03:52:18,428 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-03 03:52:18,428 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-03 03:52:18,428 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 03:52:18,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 03:52:18,429 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_open [2022-11-03 03:52:18,429 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_open [2022-11-03 03:52:18,429 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-03 03:52:18,429 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-03 03:52:18,429 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_hw_reset [2022-11-03 03:52:18,430 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_hw_reset [2022-11-03 03:52:18,430 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_vfta [2022-11-03 03:52:18,430 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_vfta [2022-11-03 03:52:18,430 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-03 03:52:18,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-03 03:52:18,430 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_remove [2022-11-03 03:52:18,430 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_remove [2022-11-03 03:52:18,431 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_ee_bits [2022-11-03 03:52:18,431 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_ee_bits [2022-11-03 03:52:18,431 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure [2022-11-03 03:52:18,431 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure [2022-11-03 03:52:18,431 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-03 03:52:18,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-03 03:52:18,432 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-03 03:52:18,432 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-03 03:52:18,432 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 03:52:18,432 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 03:52:18,432 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_cable_length [2022-11-03 03:52:18,432 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_cable_length [2022-11-03 03:52:18,433 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-03 03:52:18,433 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-03 03:52:18,433 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_ee_clk [2022-11-03 03:52:18,433 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_ee_clk [2022-11-03 03:52:18,433 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_rx_resources [2022-11-03 03:52:18,433 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_rx_resources [2022-11-03 03:52:18,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-03 03:52:18,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-03 03:52:18,434 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_add_vid [2022-11-03 03:52:18,435 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_add_vid [2022-11-03 03:52:18,438 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2022-11-03 03:52:18,439 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2022-11-03 03:52:18,439 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2022-11-03 03:52:18,439 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2022-11-03 03:52:18,439 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-03 03:52:18,439 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-03 03:52:18,439 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_write [2022-11-03 03:52:18,440 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_write [2022-11-03 03:52:18,440 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-03 03:52:18,442 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-03 03:52:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_resume [2022-11-03 03:52:18,442 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_resume [2022-11-03 03:52:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-03 03:52:18,442 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-03 03:52:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 03:52:18,443 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 03:52:18,443 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom [2022-11-03 03:52:18,443 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom [2022-11-03 03:52:18,443 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_enter_82542_rst [2022-11-03 03:52:18,443 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_enter_82542_rst [2022-11-03 03:52:18,443 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_acquire_eeprom [2022-11-03 03:52:18,443 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_acquire_eeprom [2022-11-03 03:52:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-03 03:52:18,449 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-03 03:52:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:52:18,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:52:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_down_phy [2022-11-03 03:52:18,449 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_down_phy [2022-11-03 03:52:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-03 03:52:18,449 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-03 03:52:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2022-11-03 03:52:18,450 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2022-11-03 03:52:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_spi_eeprom_ready [2022-11-03 03:52:18,450 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_spi_eeprom_ready [2022-11-03 03:52:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_clear_mwi [2022-11-03 03:52:18,450 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_clear_mwi [2022-11-03 03:52:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-03 03:52:18,450 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-03 03:52:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_up_phy [2022-11-03 03:52:18,450 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_up_phy [2022-11-03 03:52:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 03:52:18,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 03:52:18,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 03:52:18,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 03:52:18,451 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-03 03:52:18,451 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-03 03:52:18,451 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-03 03:52:18,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-03 03:52:18,451 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-03 03:52:18,451 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-03 03:52:18,451 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg_ex [2022-11-03 03:52:18,451 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg_ex [2022-11-03 03:52:18,452 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-03 03:52:18,452 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-03 03:52:18,452 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-03 03:52:18,452 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-03 03:52:18,452 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-03 03:52:18,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-03 03:52:18,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-03 03:52:18,452 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_resume [2022-11-03 03:52:18,452 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_resume [2022-11-03 03:52:18,452 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-03 03:52:18,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-03 03:52:18,453 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-03 03:52:18,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-03 03:52:18,453 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_polarity [2022-11-03 03:52:18,453 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_polarity [2022-11-03 03:52:18,453 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-03 03:52:18,453 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-03 03:52:18,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 03:52:18,453 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 03:52:18,468 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-03 03:52:18,469 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-03 03:52:18,469 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_mdi_clk [2022-11-03 03:52:18,469 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_mdi_clk [2022-11-03 03:52:18,469 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_mac_to_phy [2022-11-03 03:52:18,469 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_mac_to_phy [2022-11-03 03:52:18,469 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom_len [2022-11-03 03:52:18,469 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom_len [2022-11-03 03:52:18,470 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 03:52:18,470 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 03:52:18,470 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2022-11-03 03:52:18,470 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2022-11-03 03:52:18,470 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_rx_resources [2022-11-03 03:52:18,470 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_rx_resources [2022-11-03 03:52:18,470 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-11-03 03:52:18,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-11-03 03:52:18,471 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-03 03:52:18,471 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-03 03:52:18,471 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_close [2022-11-03 03:52:18,471 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_close [2022-11-03 03:52:18,471 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset_clk_and_crs [2022-11-03 03:52:18,471 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset_clk_and_crs [2022-11-03 03:52:18,471 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-03 03:52:18,471 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-03 03:52:18,471 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 03:52:18,472 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 03:52:18,472 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-03 03:52:18,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-03 03:52:18,472 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-03 03:52:18,472 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-03 03:52:18,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:52:18,472 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 03:52:18,472 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 03:52:18,473 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-03 03:52:18,473 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-03 03:52:18,473 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 03:52:18,473 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 03:52:18,473 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_regs_len [2022-11-03 03:52:18,473 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_regs_len [2022-11-03 03:52:18,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 03:52:18,473 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-03 03:52:18,474 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-03 03:52:18,474 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-03 03:52:18,474 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-03 03:52:18,474 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2022-11-03 03:52:18,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2022-11-03 03:52:18,474 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_tx_resources [2022-11-03 03:52:18,474 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_tx_resources [2022-11-03 03:52:18,474 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_setup_autoneg [2022-11-03 03:52:18,475 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_setup_autoneg [2022-11-03 03:52:18,475 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_mng_vlan [2022-11-03 03:52:18,475 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_mng_vlan [2022-11-03 03:52:18,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 03:52:18,475 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_media_type [2022-11-03 03:52:18,475 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_media_type [2022-11-03 03:52:18,475 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_eeprom [2022-11-03 03:52:18,475 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_eeprom [2022-11-03 03:52:18,475 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_filter_on_off [2022-11-03 03:52:18,476 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_filter_on_off [2022-11-03 03:52:18,476 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-03 03:52:18,476 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-03 03:52:18,476 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_nway_reset [2022-11-03 03:52:18,476 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_nway_reset [2022-11-03 03:52:18,476 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-03 03:52:18,476 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-03 03:52:18,476 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_phy_loopback [2022-11-03 03:52:18,477 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_phy_loopback [2022-11-03 03:52:18,477 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 03:52:18,477 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 03:52:18,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-03 03:52:18,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-03 03:52:18,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 03:52:18,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 03:52:18,477 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-03 03:52:18,478 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-03 03:52:18,478 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_all_rx_rings [2022-11-03 03:52:18,478 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_all_rx_rings [2022-11-03 03:52:18,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-03 03:52:18,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-03 03:52:18,478 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_enable [2022-11-03 03:52:18,478 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_enable [2022-11-03 03:52:18,478 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_up [2022-11-03 03:52:18,478 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_up [2022-11-03 03:52:18,479 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_tx_timeout [2022-11-03 03:52:18,479 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_tx_timeout [2022-11-03 03:52:18,479 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reinit_locked [2022-11-03 03:52:18,479 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reinit_locked [2022-11-03 03:52:18,479 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_bit [2022-11-03 03:52:18,479 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_bit [2022-11-03 03:52:18,479 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_phy_reg [2022-11-03 03:52:18,479 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_phy_reg [2022-11-03 03:52:18,480 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_rx_resources [2022-11-03 03:52:18,480 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_rx_resources [2022-11-03 03:52:18,480 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_mdi_clk [2022-11-03 03:52:18,480 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_mdi_clk [2022-11-03 03:52:18,480 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-03 03:52:18,480 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-03 03:52:18,480 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-03 03:52:18,480 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-03 03:52:18,480 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 03:52:18,481 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 03:52:18,481 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_copper_link_rtl_setup [2022-11-03 03:52:18,481 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_copper_link_rtl_setup [2022-11-03 03:52:18,481 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-11-03 03:52:18,481 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-11-03 03:52:18,481 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_eeprom [2022-11-03 03:52:18,481 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_eeprom [2022-11-03 03:52:18,481 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_desc_rings [2022-11-03 03:52:18,482 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_desc_rings [2022-11-03 03:52:18,482 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_set_mwi [2022-11-03 03:52:18,482 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_set_mwi [2022-11-03 03:52:18,482 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-03 03:52:18,482 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-03 03:52:18,482 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 03:52:18,482 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 03:52:18,482 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_polarity_reversal_workaround [2022-11-03 03:52:18,482 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_polarity_reversal_workaround [2022-11-03 03:52:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-03 03:52:18,483 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-03 03:52:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-03 03:52:18,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-03 03:52:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 03:52:18,483 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 03:52:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_link_test [2022-11-03 03:52:18,483 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_link_test [2022-11-03 03:52:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_mdi_bits [2022-11-03 03:52:18,484 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_mdi_bits [2022-11-03 03:52:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:52:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_64k_bound [2022-11-03 03:52:18,484 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_64k_bound [2022-11-03 03:52:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 03:52:18,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 03:52:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_spd_dplx [2022-11-03 03:52:18,485 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_spd_dplx [2022-11-03 03:52:18,485 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2022-11-03 03:52:18,485 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2022-11-03 03:52:18,485 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down [2022-11-03 03:52:18,485 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down [2022-11-03 03:52:18,485 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 03:52:18,485 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 03:52:18,485 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_init_script [2022-11-03 03:52:18,485 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_init_script [2022-11-03 03:52:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-03 03:52:18,486 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-03 03:52:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-03 03:52:18,486 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-03 03:52:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_request_irq [2022-11-03 03:52:18,486 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_request_irq [2022-11-03 03:52:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-03 03:52:18,486 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-03 03:52:18,487 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_eeprom [2022-11-03 03:52:18,487 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_eeprom [2022-11-03 03:52:18,487 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw [2022-11-03 03:52:18,487 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw [2022-11-03 03:52:18,487 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_disable [2022-11-03 03:52:18,487 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_disable [2022-11-03 03:52:18,487 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-11-03 03:52:18,487 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-11-03 03:52:18,487 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-03 03:52:18,488 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-03 03:52:18,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_10 [2022-11-03 03:52:18,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_10 [2022-11-03 03:52:18,488 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_tx_ring [2022-11-03 03:52:18,488 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_tx_ring [2022-11-03 03:52:18,488 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_shutdown [2022-11-03 03:52:18,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_shutdown [2022-11-03 03:52:18,488 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_tx_resources [2022-11-03 03:52:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_tx_resources [2022-11-03 03:52:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 03:52:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 03:52:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-03 03:52:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-03 03:52:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-03 03:52:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-03 03:52:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-03 03:52:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-03 03:52:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_manageability [2022-11-03 03:52:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_manageability [2022-11-03 03:52:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-11-03 03:52:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-11-03 03:52:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-03 03:52:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-03 03:52:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_wol_exclusion [2022-11-03 03:52:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_wol_exclusion [2022-11-03 03:52:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 03:52:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 03:52:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-03 03:52:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-03 03:52:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_e1000_exit_module_13_2 [2022-11-03 03:52:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_e1000_exit_module_13_2 [2022-11-03 03:52:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-03 03:52:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-03 03:52:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-03 03:52:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:52:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-11-03 03:52:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-11-03 03:52:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_rx_ring [2022-11-03 03:52:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_rx_ring [2022-11-03 03:52:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 03:52:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 03:52:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-03 03:52:20,981 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:52:20,992 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:52:22,261 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 03:53:25,809 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 03:53:26,223 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:53:35,572 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:53:35,573 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-03 03:53:35,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:53:35 BoogieIcfgContainer [2022-11-03 03:53:35,586 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:53:35,588 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:53:35,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:53:35,592 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:53:35,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:52:05" (1/3) ... [2022-11-03 03:53:35,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30eae70d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:53:35, skipping insertion in model container [2022-11-03 03:53:35,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:15" (2/3) ... [2022-11-03 03:53:35,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30eae70d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:53:35, skipping insertion in model container [2022-11-03 03:53:35,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:53:35" (3/3) ... [2022-11-03 03:53:35,600 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-03 03:53:35,619 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:53:35,619 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:53:35,802 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:53:35,809 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;@7e3b674, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:53:35,809 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:53:35,834 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) [2022-11-03 03:53:35,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-11-03 03:53:35,867 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:53:35,868 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] [2022-11-03 03:53:35,869 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:53:35,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:53:35,878 INFO L85 PathProgramCache]: Analyzing trace with hash 366093356, now seen corresponding path program 1 times [2022-11-03 03:53:35,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:53:35,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348303103] [2022-11-03 03:53:35,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:53:35,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:53:36,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:53:38,029 INFO L134 CoverageAnalysis]: Checked inductivity of 2070 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2070 trivial. 0 not checked. [2022-11-03 03:53:38,029 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:53:38,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348303103] [2022-11-03 03:53:38,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348303103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:53:38,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:53:38,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:53:38,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085632815] [2022-11-03 03:53:38,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:53:38,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:53:38,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:53:38,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:53:38,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:53:38,101 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) [2022-11-03 03:53:47,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:53:54,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:53:58,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:54:01,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:54:03,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:54:05,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:54:08,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:54:10,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:54:11,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:54:11,173 INFO L93 Difference]: Finished difference Result 19497 states and 29409 transitions. [2022-11-03 03:54:11,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:54:11,176 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 [2022-11-03 03:54:11,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:54:11,312 INFO L225 Difference]: With dead ends: 19497 [2022-11-03 03:54:11,312 INFO L226 Difference]: Without dead ends: 12815 [2022-11-03 03:54:11,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:54:11,376 INFO L413 NwaCegarLoop]: 11253 mSDtfsCounter, 9192 mSDsluCounter, 10042 mSDsCounter, 0 mSdLazyCounter, 1758 mSolverCounterSat, 7 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9195 SdHoareTripleChecker+Valid, 20435 SdHoareTripleChecker+Invalid, 1772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1758 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:54:11,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9195 Valid, 20435 Invalid, 1772 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1758 Invalid, 7 Unknown, 0 Unchecked, 32.2s Time] [2022-11-03 03:54:11,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12815 states. [2022-11-03 03:54:12,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12815 to 12806. [2022-11-03 03:54:12,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12806 states, 8169 states have (on average 1.3367609254498716) internal successors, (10920), 8349 states have internal predecessors, (10920), 4158 states have call successors, (4158), 479 states have call predecessors, (4158), 478 states have return successors, (4158), 4138 states have call predecessors, (4158), 4155 states have call successors, (4158) [2022-11-03 03:54:12,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12806 states to 12806 states and 19236 transitions. [2022-11-03 03:54:12,977 INFO L78 Accepts]: Start accepts. Automaton has 12806 states and 19236 transitions. Word has length 250 [2022-11-03 03:54:12,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:54:12,983 INFO L495 AbstractCegarLoop]: Abstraction has 12806 states and 19236 transitions. [2022-11-03 03:54:12,984 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) [2022-11-03 03:54:12,984 INFO L276 IsEmpty]: Start isEmpty. Operand 12806 states and 19236 transitions. [2022-11-03 03:54:13,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-11-03 03:54:13,009 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:54:13,010 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] [2022-11-03 03:54:13,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:54:13,010 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:54:13,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:54:13,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1486701808, now seen corresponding path program 1 times [2022-11-03 03:54:13,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:54:13,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012171561] [2022-11-03 03:54:13,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:54:13,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:54:13,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:54:16,069 INFO L134 CoverageAnalysis]: Checked inductivity of 2247 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2247 trivial. 0 not checked. [2022-11-03 03:54:16,069 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:54:16,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012171561] [2022-11-03 03:54:16,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012171561] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:54:16,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:54:16,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:54:16,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835515535] [2022-11-03 03:54:16,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:54:16,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:54:16,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:54:16,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:54:16,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:54:16,074 INFO L87 Difference]: Start difference. First operand 12806 states and 19236 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) [2022-11-03 03:54:26,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:54:37,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:54:40,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:54:43,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:54:45,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:54:47,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:54:49,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:54:51,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:54:56,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:54:58,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:54:58,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:54:58,978 INFO L93 Difference]: Finished difference Result 19035 states and 28575 transitions. [2022-11-03 03:54:58,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:54:58,979 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 [2022-11-03 03:54:58,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:54:59,139 INFO L225 Difference]: With dead ends: 19035 [2022-11-03 03:54:59,139 INFO L226 Difference]: Without dead ends: 19019 [2022-11-03 03:54:59,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:54:59,161 INFO L413 NwaCegarLoop]: 11249 mSDtfsCounter, 9321 mSDsluCounter, 22122 mSDsCounter, 0 mSdLazyCounter, 2620 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9324 SdHoareTripleChecker+Valid, 31627 SdHoareTripleChecker+Invalid, 2629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2620 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:54:59,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9324 Valid, 31627 Invalid, 2629 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2620 Invalid, 9 Unknown, 0 Unchecked, 42.1s Time] [2022-11-03 03:54:59,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19019 states. [2022-11-03 03:55:00,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19019 to 19011. [2022-11-03 03:55:00,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19011 states, 12105 states have (on average 1.3350681536555142) internal successors, (16161), 12373 states have internal predecessors, (16161), 6188 states have call successors, (6188), 718 states have call predecessors, (6188), 717 states have return successors, (6191), 6160 states have call predecessors, (6191), 6185 states have call successors, (6191) [2022-11-03 03:55:01,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19011 states to 19011 states and 28540 transitions. [2022-11-03 03:55:01,020 INFO L78 Accepts]: Start accepts. Automaton has 19011 states and 28540 transitions. Word has length 292 [2022-11-03 03:55:01,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:55:01,021 INFO L495 AbstractCegarLoop]: Abstraction has 19011 states and 28540 transitions. [2022-11-03 03:55:01,021 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) [2022-11-03 03:55:01,021 INFO L276 IsEmpty]: Start isEmpty. Operand 19011 states and 28540 transitions. [2022-11-03 03:55:01,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2022-11-03 03:55:01,097 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:55:01,097 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] [2022-11-03 03:55:01,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:55:01,098 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:55:01,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:55:01,099 INFO L85 PathProgramCache]: Analyzing trace with hash -2013623581, now seen corresponding path program 1 times [2022-11-03 03:55:01,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:55:01,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255585510] [2022-11-03 03:55:01,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:55:01,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:55:01,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:55:03,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2647 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2644 trivial. 0 not checked. [2022-11-03 03:55:03,066 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:55:03,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255585510] [2022-11-03 03:55:03,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255585510] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:55:03,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:55:03,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:55:03,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762477184] [2022-11-03 03:55:03,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:55:03,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:55:03,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:55:03,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:55:03,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:55:03,072 INFO L87 Difference]: Start difference. First operand 19011 states and 28540 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) [2022-11-03 03:55:05,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:55:14,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:55:16,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:55:21,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:55:22,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:55:25,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:55:27,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:55:29,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:55:31,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:55:33,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:55:34,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:55:34,964 INFO L93 Difference]: Finished difference Result 48865 states and 73380 transitions. [2022-11-03 03:55:34,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:55:34,965 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 [2022-11-03 03:55:34,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:55:35,192 INFO L225 Difference]: With dead ends: 48865 [2022-11-03 03:55:35,192 INFO L226 Difference]: Without dead ends: 29901 [2022-11-03 03:55:35,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:55:35,356 INFO L413 NwaCegarLoop]: 11287 mSDtfsCounter, 8531 mSDsluCounter, 10009 mSDsCounter, 0 mSdLazyCounter, 1843 mSolverCounterSat, 19 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8534 SdHoareTripleChecker+Valid, 20441 SdHoareTripleChecker+Invalid, 1867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1843 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:55:35,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8534 Valid, 20441 Invalid, 1867 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 1843 Invalid, 5 Unknown, 0 Unchecked, 30.6s Time] [2022-11-03 03:55:35,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29901 states. [2022-11-03 03:55:38,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29901 to 29891. [2022-11-03 03:55:38,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29891 states, 19099 states have (on average 1.3328446515524373) internal successors, (25456), 19509 states have internal predecessors, (25456), 9694 states have call successors, (9694), 1099 states have call predecessors, (9694), 1097 states have return successors, (9703), 9644 states have call predecessors, (9703), 9691 states have call successors, (9703) [2022-11-03 03:55:38,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29891 states to 29891 states and 44853 transitions. [2022-11-03 03:55:38,274 INFO L78 Accepts]: Start accepts. Automaton has 29891 states and 44853 transitions. Word has length 410 [2022-11-03 03:55:38,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:55:38,275 INFO L495 AbstractCegarLoop]: Abstraction has 29891 states and 44853 transitions. [2022-11-03 03:55:38,275 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) [2022-11-03 03:55:38,275 INFO L276 IsEmpty]: Start isEmpty. Operand 29891 states and 44853 transitions. [2022-11-03 03:55:38,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2022-11-03 03:55:38,388 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:55:38,388 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] [2022-11-03 03:55:38,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:55:38,389 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:55:38,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:55:38,390 INFO L85 PathProgramCache]: Analyzing trace with hash 2142805962, now seen corresponding path program 1 times [2022-11-03 03:55:38,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:55:38,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696932104] [2022-11-03 03:55:38,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:55:38,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:55:39,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:55:40,402 INFO L134 CoverageAnalysis]: Checked inductivity of 2921 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2906 trivial. 0 not checked. [2022-11-03 03:55:40,402 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:55:40,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696932104] [2022-11-03 03:55:40,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696932104] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:55:40,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:55:40,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:55:40,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557971885] [2022-11-03 03:55:40,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:55:40,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:55:40,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:55:40,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:55:40,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:55:40,409 INFO L87 Difference]: Start difference. First operand 29891 states and 44853 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) [2022-11-03 03:55:58,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:56:01,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:56:06,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:56:09,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:56:11,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:56:14,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:56:17,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:56:19,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:56:19,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:56:19,786 INFO L93 Difference]: Finished difference Result 65414 states and 98175 transitions. [2022-11-03 03:56:19,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:56:19,787 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 [2022-11-03 03:56:19,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:56:20,168 INFO L225 Difference]: With dead ends: 65414 [2022-11-03 03:56:20,168 INFO L226 Difference]: Without dead ends: 41160 [2022-11-03 03:56:20,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:56:20,320 INFO L413 NwaCegarLoop]: 16917 mSDtfsCounter, 8430 mSDsluCounter, 10003 mSDsCounter, 0 mSdLazyCounter, 2493 mSolverCounterSat, 15 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8433 SdHoareTripleChecker+Valid, 26069 SdHoareTripleChecker+Invalid, 2516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2493 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:56:20,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8433 Valid, 26069 Invalid, 2516 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 2493 Invalid, 8 Unknown, 0 Unchecked, 38.0s Time] [2022-11-03 03:56:20,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41160 states. [2022-11-03 03:56:23,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41160 to 41148. [2022-11-03 03:56:23,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41148 states, 26298 states have (on average 1.3324207164042894) internal successors, (35040), 26865 states have internal predecessors, (35040), 13342 states have call successors, (13342), 1510 states have call predecessors, (13342), 1507 states have return successors, (13357), 13268 states have call predecessors, (13357), 13339 states have call successors, (13357) [2022-11-03 03:56:23,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41148 states to 41148 states and 61739 transitions. [2022-11-03 03:56:23,958 INFO L78 Accepts]: Start accepts. Automaton has 41148 states and 61739 transitions. Word has length 457 [2022-11-03 03:56:23,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:56:23,959 INFO L495 AbstractCegarLoop]: Abstraction has 41148 states and 61739 transitions. [2022-11-03 03:56:23,960 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) [2022-11-03 03:56:23,960 INFO L276 IsEmpty]: Start isEmpty. Operand 41148 states and 61739 transitions. [2022-11-03 03:56:24,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2022-11-03 03:56:24,134 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:56:24,134 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] [2022-11-03 03:56:24,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 03:56:24,135 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:56:24,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:56:24,135 INFO L85 PathProgramCache]: Analyzing trace with hash 2101313536, now seen corresponding path program 1 times [2022-11-03 03:56:24,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:56:24,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108595365] [2022-11-03 03:56:24,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:56:24,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:56:24,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:56:27,701 INFO L134 CoverageAnalysis]: Checked inductivity of 3217 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3217 trivial. 0 not checked. [2022-11-03 03:56:27,701 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:56:27,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108595365] [2022-11-03 03:56:27,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108595365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:56:27,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:56:27,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:56:27,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936439403] [2022-11-03 03:56:27,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:56:27,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:56:27,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:56:27,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:56:27,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:56:27,705 INFO L87 Difference]: Start difference. First operand 41148 states and 61739 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) [2022-11-03 03:56:33,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:56:42,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:56:44,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:56:48,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:56:51,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:56:53,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:56:55,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:56:57,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:56:59,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:57:07,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:57:09,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:57:12,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:57:14,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:57:15,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:57:15,414 INFO L93 Difference]: Finished difference Result 76241 states and 114384 transitions. [2022-11-03 03:57:15,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:57:15,414 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 [2022-11-03 03:57:15,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:57:15,857 INFO L225 Difference]: With dead ends: 76241 [2022-11-03 03:57:15,857 INFO L226 Difference]: Without dead ends: 76211 [2022-11-03 03:57:15,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:57:15,910 INFO L413 NwaCegarLoop]: 11271 mSDtfsCounter, 9549 mSDsluCounter, 22136 mSDsCounter, 0 mSdLazyCounter, 2604 mSolverCounterSat, 0 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9552 SdHoareTripleChecker+Valid, 31671 SdHoareTripleChecker+Invalid, 2615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2604 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:57:15,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9552 Valid, 31671 Invalid, 2615 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2604 Invalid, 11 Unknown, 0 Unchecked, 45.5s Time] [2022-11-03 03:57:16,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76211 states. [2022-11-03 03:57:20,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76211 to 76201. [2022-11-03 03:57:20,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76201 states, 48689 states have (on average 1.3325597157468834) internal successors, (64881), 49743 states have internal predecessors, (64881), 24702 states have call successors, (24702), 2812 states have call predecessors, (24702), 2809 states have return successors, (24735), 24569 states have call predecessors, (24735), 24699 states have call successors, (24735) [2022-11-03 03:57:22,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76201 states to 76201 states and 114318 transitions. [2022-11-03 03:57:22,011 INFO L78 Accepts]: Start accepts. Automaton has 76201 states and 114318 transitions. Word has length 519 [2022-11-03 03:57:22,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:57:22,014 INFO L495 AbstractCegarLoop]: Abstraction has 76201 states and 114318 transitions. [2022-11-03 03:57:22,014 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) [2022-11-03 03:57:22,015 INFO L276 IsEmpty]: Start isEmpty. Operand 76201 states and 114318 transitions. [2022-11-03 03:57:22,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 882 [2022-11-03 03:57:22,573 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:57:22,574 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] [2022-11-03 03:57:22,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 03:57:22,575 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:57:22,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:57:22,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1119880148, now seen corresponding path program 1 times [2022-11-03 03:57:22,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:57:22,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912310292] [2022-11-03 03:57:22,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:57:22,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:57:23,537 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:57:23,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1780427045] [2022-11-03 03:57:23,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:57:23,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:57:23,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8523eb15-0892-49c9-a565-419a07baa12a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:57:23,545 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8523eb15-0892-49c9-a565-419a07baa12a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:57:23,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8523eb15-0892-49c9-a565-419a07baa12a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 03:57:30,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:57:30,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 23005 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 03:57:30,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:57:30,389 INFO L134 CoverageAnalysis]: Checked inductivity of 3507 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 3189 trivial. 0 not checked. [2022-11-03 03:57:30,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:57:30,389 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:57:30,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912310292] [2022-11-03 03:57:30,390 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:57:30,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780427045] [2022-11-03 03:57:30,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780427045] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:57:30,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:57:30,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:57:30,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317879186] [2022-11-03 03:57:30,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:57:30,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:57:30,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:57:30,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:57:30,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:57:30,393 INFO L87 Difference]: Start difference. First operand 76201 states and 114318 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) [2022-11-03 03:57:34,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:57:37,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:57:39,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:57:45,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:57:48,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:57:52,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:57:54,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:57:56,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:57:58,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:58:01,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:58:04,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:58:07,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:58:08,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:58:08,566 INFO L93 Difference]: Finished difference Result 97973 states and 147366 transitions. [2022-11-03 03:58:08,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:58:08,567 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 [2022-11-03 03:58:08,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:58:09,064 INFO L225 Difference]: With dead ends: 97973 [2022-11-03 03:58:09,064 INFO L226 Difference]: Without dead ends: 79983 [2022-11-03 03:58:09,363 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 [2022-11-03 03:58:09,363 INFO L413 NwaCegarLoop]: 11107 mSDtfsCounter, 1180 mSDsluCounter, 10554 mSDsCounter, 0 mSdLazyCounter, 2011 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1675 SdHoareTripleChecker+Valid, 20796 SdHoareTripleChecker+Invalid, 2019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2011 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:58:09,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1675 Valid, 20796 Invalid, 2019 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2011 Invalid, 7 Unknown, 0 Unchecked, 35.8s Time] [2022-11-03 03:58:09,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79983 states. [2022-11-03 03:58:14,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79983 to 76206. [2022-11-03 03:58:14,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76206 states, 48693 states have (on average 1.332552933686567) internal successors, (64886), 49747 states have internal predecessors, (64886), 24703 states have call successors, (24703), 2812 states have call predecessors, (24703), 2809 states have return successors, (24736), 24570 states have call predecessors, (24736), 24700 states have call successors, (24736) [2022-11-03 03:58:15,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76206 states to 76206 states and 114325 transitions. [2022-11-03 03:58:15,213 INFO L78 Accepts]: Start accepts. Automaton has 76206 states and 114325 transitions. Word has length 881 [2022-11-03 03:58:15,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:58:15,216 INFO L495 AbstractCegarLoop]: Abstraction has 76206 states and 114325 transitions. [2022-11-03 03:58:15,217 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) [2022-11-03 03:58:15,217 INFO L276 IsEmpty]: Start isEmpty. Operand 76206 states and 114325 transitions. [2022-11-03 03:58:15,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 926 [2022-11-03 03:58:15,790 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:58:15,791 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] [2022-11-03 03:58:15,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8523eb15-0892-49c9-a565-419a07baa12a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 03:58:16,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8523eb15-0892-49c9-a565-419a07baa12a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:58:16,003 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:58:16,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:58:16,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1210120989, now seen corresponding path program 1 times [2022-11-03 03:58:16,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:58:16,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275294772] [2022-11-03 03:58:16,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:58:16,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:58:17,013 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:58:17,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [398546911] [2022-11-03 03:58:17,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:58:17,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:58:17,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8523eb15-0892-49c9-a565-419a07baa12a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:58:17,015 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8523eb15-0892-49c9-a565-419a07baa12a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:58:17,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8523eb15-0892-49c9-a565-419a07baa12a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 03:58:23,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:58:24,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 23481 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:58:24,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:58:24,200 INFO L134 CoverageAnalysis]: Checked inductivity of 3635 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 3389 trivial. 0 not checked. [2022-11-03 03:58:24,200 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:58:24,201 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:58:24,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275294772] [2022-11-03 03:58:24,201 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:58:24,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398546911] [2022-11-03 03:58:24,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398546911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:58:24,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:58:24,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:58:24,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911725983] [2022-11-03 03:58:24,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:58:24,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:58:24,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:58:24,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:58:24,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:58:24,205 INFO L87 Difference]: Start difference. First operand 76206 states and 114325 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) [2022-11-03 03:58:35,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:58:40,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:58:42,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:58:45,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:58:49,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:58:54,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:58:56,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:04,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:06,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:09,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:11,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:16,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:19,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:59:19,152 INFO L93 Difference]: Finished difference Result 141781 states and 215572 transitions. [2022-11-03 03:59:19,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:59:19,152 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 [2022-11-03 03:59:19,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:59:19,791 INFO L225 Difference]: With dead ends: 141781 [2022-11-03 03:59:19,792 INFO L226 Difference]: Without dead ends: 106126 [2022-11-03 03:59:20,149 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 [2022-11-03 03:59:20,150 INFO L413 NwaCegarLoop]: 13591 mSDtfsCounter, 3567 mSDsluCounter, 25267 mSDsCounter, 0 mSdLazyCounter, 3672 mSolverCounterSat, 973 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4577 SdHoareTripleChecker+Valid, 36627 SdHoareTripleChecker+Invalid, 4653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 973 IncrementalHoareTripleChecker+Valid, 3672 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:59:20,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4577 Valid, 36627 Invalid, 4653 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [973 Valid, 3672 Invalid, 8 Unknown, 0 Unchecked, 50.9s Time] [2022-11-03 03:59:20,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106126 states. [2022-11-03 03:59:26,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106126 to 76210. [2022-11-03 03:59:26,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76210 states, 48697 states have (on average 1.332525617594513) internal successors, (64890), 49751 states have internal predecessors, (64890), 24703 states have call successors, (24703), 2812 states have call predecessors, (24703), 2809 states have return successors, (24736), 24570 states have call predecessors, (24736), 24700 states have call successors, (24736) [2022-11-03 03:59:27,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76210 states to 76210 states and 114329 transitions. [2022-11-03 03:59:27,554 INFO L78 Accepts]: Start accepts. Automaton has 76210 states and 114329 transitions. Word has length 925 [2022-11-03 03:59:27,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:59:27,554 INFO L495 AbstractCegarLoop]: Abstraction has 76210 states and 114329 transitions. [2022-11-03 03:59:27,555 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) [2022-11-03 03:59:27,555 INFO L276 IsEmpty]: Start isEmpty. Operand 76210 states and 114329 transitions. [2022-11-03 03:59:27,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 944 [2022-11-03 03:59:27,880 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:59:27,881 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] [2022-11-03 03:59:27,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8523eb15-0892-49c9-a565-419a07baa12a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 03:59:28,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8523eb15-0892-49c9-a565-419a07baa12a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:59:28,097 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:59:28,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:59:28,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1946217010, now seen corresponding path program 1 times [2022-11-03 03:59:28,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:59:28,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369732574] [2022-11-03 03:59:28,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:28,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:59:29,034 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:59:29,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1178815783] [2022-11-03 03:59:29,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:29,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:59:29,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8523eb15-0892-49c9-a565-419a07baa12a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:59:29,037 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8523eb15-0892-49c9-a565-419a07baa12a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:59:29,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8523eb15-0892-49c9-a565-419a07baa12a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 03:59:36,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:59:36,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 23740 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:59:36,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:59:36,295 INFO L134 CoverageAnalysis]: Checked inductivity of 3669 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 3421 trivial. 0 not checked. [2022-11-03 03:59:36,295 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:59:36,295 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:59:36,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369732574] [2022-11-03 03:59:36,296 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:59:36,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178815783] [2022-11-03 03:59:36,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178815783] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:59:36,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:59:36,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:59:36,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66397559] [2022-11-03 03:59:36,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:59:36,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:59:36,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:59:36,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:59:36,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:59:36,300 INFO L87 Difference]: Start difference. First operand 76210 states and 114329 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) [2022-11-03 03:59:46,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:52,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:55,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:57,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:01,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:08,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:10,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:12,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:14,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:18,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:20,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:22,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:25,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:00:25,193 INFO L93 Difference]: Finished difference Result 119577 states and 180147 transitions. [2022-11-03 04:00:25,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:00:25,197 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 [2022-11-03 04:00:25,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:00:25,653 INFO L225 Difference]: With dead ends: 119577 [2022-11-03 04:00:25,653 INFO L226 Difference]: Without dead ends: 83918 [2022-11-03 04:00:25,837 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 [2022-11-03 04:00:25,838 INFO L413 NwaCegarLoop]: 11219 mSDtfsCounter, 2565 mSDsluCounter, 21155 mSDsCounter, 0 mSdLazyCounter, 2885 mSolverCounterSat, 1027 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2565 SdHoareTripleChecker+Valid, 30642 SdHoareTripleChecker+Invalid, 3922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1027 IncrementalHoareTripleChecker+Valid, 2885 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:00:25,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2565 Valid, 30642 Invalid, 3922 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1027 Valid, 2885 Invalid, 10 Unknown, 0 Unchecked, 45.3s Time] [2022-11-03 04:00:25,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83918 states.