./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_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_86523c40-d48c-4965-be35-5b9da9afe632/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86523c40-d48c-4965-be35-5b9da9afe632/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_86523c40-d48c-4965-be35-5b9da9afe632/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86523c40-d48c-4965-be35-5b9da9afe632/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86523c40-d48c-4965-be35-5b9da9afe632/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_86523c40-d48c-4965-be35-5b9da9afe632/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 74909622391d8d6688f7cf92b1187b85ab387a71d6e4222379ac00e3d2b34d56 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 01:48:37,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:48:37,544 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:48:37,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:48:37,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:48:37,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:48:37,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:48:37,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:48:37,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:48:37,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:48:37,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:48:37,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:48:37,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:48:37,596 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:48:37,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:48:37,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:48:37,600 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:48:37,601 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:48:37,603 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:48:37,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:48:37,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:48:37,609 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:48:37,610 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:48:37,611 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:48:37,616 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:48:37,616 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:48:37,617 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:48:37,618 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:48:37,618 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:48:37,620 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:48:37,620 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:48:37,621 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:48:37,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:48:37,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:48:37,625 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:48:37,625 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:48:37,626 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:48:37,626 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:48:37,627 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:48:37,628 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:48:37,629 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:48:37,630 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86523c40-d48c-4965-be35-5b9da9afe632/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 01:48:37,654 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:48:37,654 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:48:37,655 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:48:37,655 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:48:37,656 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:48:37,656 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:48:37,656 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:48:37,657 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:48:37,657 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:48:37,657 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:48:37,657 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:48:37,658 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:48:37,658 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:48:37,658 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:48:37,658 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:48:37,659 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:48:37,659 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:48:37,659 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:48:37,660 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:48:37,660 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:48:37,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:48:37,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:48:37,661 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:48:37,661 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:48:37,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:48:37,662 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:48:37,662 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:48:37,662 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:48:37,663 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:48:37,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:48:37,663 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:48:37,664 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:48:37,664 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:48:37,664 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:48:37,664 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:48:37,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:48:37,665 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:48:37,665 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:48:37,665 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_86523c40-d48c-4965-be35-5b9da9afe632/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86523c40-d48c-4965-be35-5b9da9afe632/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 74909622391d8d6688f7cf92b1187b85ab387a71d6e4222379ac00e3d2b34d56 [2022-11-03 01:48:37,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:48:37,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:48:37,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:48:37,984 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:48:37,985 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:48:37,987 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86523c40-d48c-4965-be35-5b9da9afe632/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-03 01:48:38,060 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86523c40-d48c-4965-be35-5b9da9afe632/bin/utaipan-7li7fVZpFI/data/b66921dd3/917f2b30836649f98f958d791d0c647b/FLAG22424f238 [2022-11-03 01:48:39,267 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:48:39,268 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86523c40-d48c-4965-be35-5b9da9afe632/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-03 01:48:39,360 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86523c40-d48c-4965-be35-5b9da9afe632/bin/utaipan-7li7fVZpFI/data/b66921dd3/917f2b30836649f98f958d791d0c647b/FLAG22424f238 [2022-11-03 01:48:39,429 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86523c40-d48c-4965-be35-5b9da9afe632/bin/utaipan-7li7fVZpFI/data/b66921dd3/917f2b30836649f98f958d791d0c647b [2022-11-03 01:48:39,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:48:39,434 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:48:39,437 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:48:39,437 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:48:39,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:48:39,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:48:39" (1/1) ... [2022-11-03 01:48:39,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30f69f26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:48:39, skipping insertion in model container [2022-11-03 01:48:39,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:48:39" (1/1) ... [2022-11-03 01:48:39,451 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:48:39,793 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:48:49,682 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_86523c40-d48c-4965-be35-5b9da9afe632/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i[901789,901802] [2022-11-03 01:48:49,685 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_86523c40-d48c-4965-be35-5b9da9afe632/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i[901936,901949] [2022-11-03 01:48:49,686 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_86523c40-d48c-4965-be35-5b9da9afe632/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i[902075,902088] [2022-11-03 01:48:49,687 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_86523c40-d48c-4965-be35-5b9da9afe632/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i[902233,902246] [2022-11-03 01:48:49,722 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:48:49,798 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:48:50,846 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_86523c40-d48c-4965-be35-5b9da9afe632/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i[901789,901802] [2022-11-03 01:48:50,847 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_86523c40-d48c-4965-be35-5b9da9afe632/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i[901936,901949] [2022-11-03 01:48:50,848 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_86523c40-d48c-4965-be35-5b9da9afe632/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i[902075,902088] [2022-11-03 01:48:50,848 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_86523c40-d48c-4965-be35-5b9da9afe632/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i[902233,902246] [2022-11-03 01:48:50,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:48:51,307 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:48:51,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:48:51 WrapperNode [2022-11-03 01:48:51,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:48:51,309 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:48:51,309 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:48:51,310 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:48:51,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:48:51" (1/1) ... [2022-11-03 01:48:51,691 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:48:51" (1/1) ... [2022-11-03 01:48:52,730 INFO L138 Inliner]: procedures = 726, calls = 16218, calls flagged for inlining = 402, calls inlined = 353, statements flattened = 28836 [2022-11-03 01:48:52,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:48:52,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:48:52,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:48:52,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:48:52,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:48:51" (1/1) ... [2022-11-03 01:48:52,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:48:51" (1/1) ... [2022-11-03 01:48:53,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:48:51" (1/1) ... [2022-11-03 01:48:53,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:48:51" (1/1) ... [2022-11-03 01:48:53,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:48:51" (1/1) ... [2022-11-03 01:48:53,785 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:48:51" (1/1) ... [2022-11-03 01:48:54,005 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:48:51" (1/1) ... [2022-11-03 01:48:54,075 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:48:51" (1/1) ... [2022-11-03 01:48:54,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:48:54,236 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:48:54,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:48:54,236 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:48:54,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:48:51" (1/1) ... [2022-11-03 01:48:54,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:48:54,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86523c40-d48c-4965-be35-5b9da9afe632/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:48:54,281 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86523c40-d48c-4965-be35-5b9da9afe632/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:48:54,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86523c40-d48c-4965-be35-5b9da9afe632/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:48:54,326 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-03 01:48:54,326 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-03 01:48:54,326 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_fc_after_link_up [2022-11-03 01:48:54,327 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_fc_after_link_up [2022-11-03 01:48:54,327 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-03 01:48:54,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-03 01:48:54,327 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_collision_dist [2022-11-03 01:48:54,327 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_collision_dist [2022-11-03 01:48:54,327 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_ee_clk [2022-11-03 01:48:54,328 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_ee_clk [2022-11-03 01:48:54,328 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-11-03 01:48:54,328 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-11-03 01:48:54,328 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-03 01:48:54,328 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-03 01:48:54,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 01:48:54,329 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 01:48:54,329 INFO L130 BoogieDeclarations]: Found specification of procedure reg_pattern_test [2022-11-03 01:48:54,329 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_pattern_test [2022-11-03 01:48:54,329 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-03 01:48:54,329 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-03 01:48:54,329 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 01:48:54,330 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 01:48:54,330 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-03 01:48:54,330 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-03 01:48:54,330 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_eeprom [2022-11-03 01:48:54,331 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_eeprom [2022-11-03 01:48:54,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 01:48:54,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 01:48:54,331 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_manageability [2022-11-03 01:48:54,331 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_manageability [2022-11-03 01:48:54,332 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_in_ee_bits [2022-11-03 01:48:54,332 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_in_ee_bits [2022-11-03 01:48:54,332 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down_and_stop [2022-11-03 01:48:54,332 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down_and_stop [2022-11-03 01:48:54,332 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-03 01:48:54,333 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-03 01:48:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-11-03 01:48:54,333 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-11-03 01:48:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-03 01:48:54,333 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-03 01:48:54,334 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_unmap_and_free_tx_resource [2022-11-03 01:48:54,334 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_unmap_and_free_tx_resource [2022-11-03 01:48:54,334 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-03 01:48:54,335 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-03 01:48:54,336 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_get_info [2022-11-03 01:48:54,336 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_get_info [2022-11-03 01:48:54,336 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 01:48:54,336 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 01:48:54,336 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-03 01:48:54,337 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-03 01:48:54,337 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_do_read_eeprom [2022-11-03 01:48:54,337 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_do_read_eeprom [2022-11-03 01:48:54,337 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_rctl [2022-11-03 01:48:54,338 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_rctl [2022-11-03 01:48:54,338 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-03 01:48:54,338 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-03 01:48:54,338 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set [2022-11-03 01:48:54,339 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set [2022-11-03 01:48:54,339 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2022-11-03 01:48:54,339 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2022-11-03 01:48:54,339 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 01:48:54,339 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 01:48:54,339 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset [2022-11-03 01:48:54,340 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset [2022-11-03 01:48:54,340 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2022-11-03 01:48:54,340 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2022-11-03 01:48:54,340 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_eeprom_params [2022-11-03 01:48:54,340 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_eeprom_params [2022-11-03 01:48:54,340 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2022-11-03 01:48:54,341 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2022-11-03 01:48:54,341 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-03 01:48:54,341 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-03 01:48:54,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 01:48:54,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 01:48:54,342 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 01:48:54,342 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 01:48:54,343 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-03 01:48:54,343 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-03 01:48:54,343 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 01:48:54,344 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 01:48:54,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 01:48:54,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 01:48:54,345 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 01:48:54,345 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 01:48:54,345 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-03 01:48:54,345 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-03 01:48:54,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 01:48:54,346 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-03 01:48:54,346 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-03 01:48:54,346 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg [2022-11-03 01:48:54,347 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg [2022-11-03 01:48:54,347 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_speed_and_duplex [2022-11-03 01:48:54,347 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_speed_and_duplex [2022-11-03 01:48:54,347 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_standby_eeprom [2022-11-03 01:48:54,347 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_standby_eeprom [2022-11-03 01:48:54,347 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_bit [2022-11-03 01:48:54,348 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_bit [2022-11-03 01:48:54,348 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-03 01:48:54,348 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-03 01:48:54,348 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure_rx [2022-11-03 01:48:54,348 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure_rx [2022-11-03 01:48:54,349 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 01:48:54,349 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 01:48:54,349 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_hw_dev [2022-11-03 01:48:54,350 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_hw_dev [2022-11-03 01:48:54,353 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_stats [2022-11-03 01:48:54,354 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_stats [2022-11-03 01:48:54,354 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_validate_option [2022-11-03 01:48:54,354 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_validate_option [2022-11-03 01:48:54,354 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 01:48:54,355 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 01:48:54,356 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 01:48:54,356 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 01:48:54,356 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link [2022-11-03 01:48:54,361 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link [2022-11-03 01:48:54,362 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_irq [2022-11-03 01:48:54,362 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_irq [2022-11-03 01:48:54,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 01:48:54,362 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-03 01:48:54,363 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-03 01:48:54,363 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_link [2022-11-03 01:48:54,363 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_link [2022-11-03 01:48:54,363 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_vlan_mode [2022-11-03 01:48:54,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_vlan_mode [2022-11-03 01:48:54,363 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset [2022-11-03 01:48:54,363 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset [2022-11-03 01:48:54,364 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 01:48:54,364 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 01:48:54,364 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_dsp_after_link_change [2022-11-03 01:48:54,364 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_dsp_after_link_change [2022-11-03 01:48:54,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 01:48:54,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 01:48:54,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 01:48:54,365 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_maybe_stop_tx [2022-11-03 01:48:54,365 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_maybe_stop_tx [2022-11-03 01:48:54,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 01:48:54,365 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 01:48:54,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 01:48:54,365 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shutdown [2022-11-03 01:48:54,365 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shutdown [2022-11-03 01:48:54,366 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2022-11-03 01:48:54,366 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2022-11-03 01:48:54,366 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_used [2022-11-03 01:48:54,366 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_used [2022-11-03 01:48:54,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 01:48:54,366 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 01:48:54,366 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_disable_receiver [2022-11-03 01:48:54,367 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_disable_receiver [2022-11-03 01:48:54,367 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_kill_vid [2022-11-03 01:48:54,367 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_kill_vid [2022-11-03 01:48:54,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-03 01:48:54,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-03 01:48:54,367 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_force_mac_fc [2022-11-03 01:48:54,367 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_force_mac_fc [2022-11-03 01:48:54,367 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-03 01:48:54,368 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-03 01:48:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 01:48:54,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 01:48:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2022-11-03 01:48:54,368 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2022-11-03 01:48:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 01:48:54,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 01:48:54,369 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_leave_82542_rst [2022-11-03 01:48:54,369 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_leave_82542_rst [2022-11-03 01:48:54,369 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_has_link [2022-11-03 01:48:54,369 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_has_link [2022-11-03 01:48:54,369 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-03 01:48:54,369 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-03 01:48:54,369 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 01:48:54,370 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 01:48:54,370 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2022-11-03 01:48:54,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2022-11-03 01:48:54,370 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_tx_resources [2022-11-03 01:48:54,370 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_tx_resources [2022-11-03 01:48:54,370 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-03 01:48:54,370 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-03 01:48:54,371 INFO L130 BoogieDeclarations]: Found specification of procedure pci_wake_from_d3 [2022-11-03 01:48:54,371 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_wake_from_d3 [2022-11-03 01:48:54,372 INFO L130 BoogieDeclarations]: Found specification of procedure reg_set_and_check [2022-11-03 01:48:54,372 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_set_and_check [2022-11-03 01:48:54,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 01:48:54,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-03 01:48:54,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-03 01:48:54,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 01:48:54,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 01:48:54,373 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_netpoll [2022-11-03 01:48:54,373 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_netpoll [2022-11-03 01:48:54,373 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-03 01:48:54,374 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-03 01:48:54,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:48:54,374 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-03 01:48:54,374 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-03 01:48:54,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 01:48:54,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 01:48:54,374 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 01:48:54,375 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 01:48:54,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 01:48:54,375 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_rx_mode [2022-11-03 01:48:54,375 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_rx_mode [2022-11-03 01:48:54,375 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 01:48:54,375 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-03 01:48:54,375 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-03 01:48:54,376 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 01:48:54,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 01:48:54,376 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_open [2022-11-03 01:48:54,376 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_open [2022-11-03 01:48:54,376 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-03 01:48:54,376 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-03 01:48:54,376 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_hw_reset [2022-11-03 01:48:54,377 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_hw_reset [2022-11-03 01:48:54,377 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_vfta [2022-11-03 01:48:54,377 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_vfta [2022-11-03 01:48:54,377 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-03 01:48:54,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-03 01:48:54,377 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_remove [2022-11-03 01:48:54,377 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_remove [2022-11-03 01:48:54,378 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_ee_bits [2022-11-03 01:48:54,378 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_ee_bits [2022-11-03 01:48:54,378 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure [2022-11-03 01:48:54,378 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure [2022-11-03 01:48:54,378 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-03 01:48:54,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-03 01:48:54,378 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-03 01:48:54,379 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-03 01:48:54,379 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 01:48:54,379 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 01:48:54,379 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_cable_length [2022-11-03 01:48:54,379 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_cable_length [2022-11-03 01:48:54,379 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-03 01:48:54,380 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-03 01:48:54,380 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_ee_clk [2022-11-03 01:48:54,381 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_ee_clk [2022-11-03 01:48:54,385 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_rx_resources [2022-11-03 01:48:54,385 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_rx_resources [2022-11-03 01:48:54,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-03 01:48:54,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-03 01:48:54,385 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_add_vid [2022-11-03 01:48:54,385 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_add_vid [2022-11-03 01:48:54,386 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2022-11-03 01:48:54,386 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2022-11-03 01:48:54,386 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2022-11-03 01:48:54,388 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2022-11-03 01:48:54,388 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-03 01:48:54,388 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-03 01:48:54,388 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_write [2022-11-03 01:48:54,388 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_write [2022-11-03 01:48:54,388 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-03 01:48:54,389 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-03 01:48:54,389 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_resume [2022-11-03 01:48:54,389 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_resume [2022-11-03 01:48:54,389 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-03 01:48:54,389 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-03 01:48:54,389 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 01:48:54,389 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 01:48:54,390 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom [2022-11-03 01:48:54,390 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom [2022-11-03 01:48:54,390 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_enter_82542_rst [2022-11-03 01:48:54,390 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_enter_82542_rst [2022-11-03 01:48:54,390 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_acquire_eeprom [2022-11-03 01:48:54,390 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_acquire_eeprom [2022-11-03 01:48:54,390 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-03 01:48:54,391 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-03 01:48:54,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:48:54,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:48:54,391 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_down_phy [2022-11-03 01:48:54,391 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_down_phy [2022-11-03 01:48:54,391 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-03 01:48:54,391 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-03 01:48:54,392 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2022-11-03 01:48:54,392 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2022-11-03 01:48:54,392 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_spi_eeprom_ready [2022-11-03 01:48:54,392 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_spi_eeprom_ready [2022-11-03 01:48:54,392 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_clear_mwi [2022-11-03 01:48:54,392 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_clear_mwi [2022-11-03 01:48:54,392 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-03 01:48:54,393 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-03 01:48:54,393 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_up_phy [2022-11-03 01:48:54,393 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_up_phy [2022-11-03 01:48:54,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 01:48:54,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 01:48:54,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 01:48:54,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 01:48:54,394 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-03 01:48:54,394 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-03 01:48:54,394 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-03 01:48:54,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-03 01:48:54,394 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-03 01:48:54,394 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-03 01:48:54,395 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg_ex [2022-11-03 01:48:54,395 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg_ex [2022-11-03 01:48:54,395 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-03 01:48:54,395 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-03 01:48:54,395 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-03 01:48:54,395 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-03 01:48:54,395 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-03 01:48:54,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-03 01:48:54,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-03 01:48:54,396 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_resume [2022-11-03 01:48:54,396 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_resume [2022-11-03 01:48:54,396 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-03 01:48:54,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-03 01:48:54,396 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-03 01:48:54,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-03 01:48:54,397 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_polarity [2022-11-03 01:48:54,397 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_polarity [2022-11-03 01:48:54,397 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-03 01:48:54,397 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-03 01:48:54,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 01:48:54,398 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 01:48:54,398 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-03 01:48:54,398 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-03 01:48:54,398 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_mdi_clk [2022-11-03 01:48:54,398 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_mdi_clk [2022-11-03 01:48:54,398 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_mac_to_phy [2022-11-03 01:48:54,398 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_mac_to_phy [2022-11-03 01:48:54,399 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom_len [2022-11-03 01:48:54,399 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom_len [2022-11-03 01:48:54,399 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 01:48:54,399 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 01:48:54,399 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2022-11-03 01:48:54,399 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2022-11-03 01:48:54,400 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_rx_resources [2022-11-03 01:48:54,400 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_rx_resources [2022-11-03 01:48:54,400 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-11-03 01:48:54,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-11-03 01:48:54,400 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-03 01:48:54,400 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-03 01:48:54,400 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_close [2022-11-03 01:48:54,401 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_close [2022-11-03 01:48:54,401 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset_clk_and_crs [2022-11-03 01:48:54,401 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset_clk_and_crs [2022-11-03 01:48:54,401 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-03 01:48:54,401 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-03 01:48:54,401 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 01:48:54,401 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 01:48:54,402 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-03 01:48:54,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-03 01:48:54,402 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-03 01:48:54,402 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-03 01:48:54,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 01:48:54,402 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 01:48:54,403 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 01:48:54,403 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-03 01:48:54,403 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-03 01:48:54,403 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 01:48:54,403 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 01:48:54,403 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_regs_len [2022-11-03 01:48:54,403 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_regs_len [2022-11-03 01:48:54,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 01:48:54,404 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-03 01:48:54,404 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-03 01:48:54,404 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-03 01:48:54,404 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-03 01:48:54,404 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2022-11-03 01:48:54,404 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2022-11-03 01:48:54,405 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_tx_resources [2022-11-03 01:48:54,405 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_tx_resources [2022-11-03 01:48:54,405 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_setup_autoneg [2022-11-03 01:48:54,405 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_setup_autoneg [2022-11-03 01:48:54,405 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_mng_vlan [2022-11-03 01:48:54,405 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_mng_vlan [2022-11-03 01:48:54,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 01:48:54,406 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_media_type [2022-11-03 01:48:54,406 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_media_type [2022-11-03 01:48:54,406 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_eeprom [2022-11-03 01:48:54,406 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_eeprom [2022-11-03 01:48:54,406 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_filter_on_off [2022-11-03 01:48:54,406 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_filter_on_off [2022-11-03 01:48:54,407 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-03 01:48:54,407 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-03 01:48:54,407 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_nway_reset [2022-11-03 01:48:54,407 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_nway_reset [2022-11-03 01:48:54,407 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-03 01:48:54,407 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-03 01:48:54,408 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_phy_loopback [2022-11-03 01:48:54,408 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_phy_loopback [2022-11-03 01:48:54,408 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 01:48:54,408 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 01:48:54,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-03 01:48:54,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-03 01:48:54,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 01:48:54,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 01:48:54,409 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-03 01:48:54,409 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-03 01:48:54,409 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_all_rx_rings [2022-11-03 01:48:54,409 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_all_rx_rings [2022-11-03 01:48:54,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-03 01:48:54,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-03 01:48:54,410 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_enable [2022-11-03 01:48:54,410 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_enable [2022-11-03 01:48:54,410 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_up [2022-11-03 01:48:54,410 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_up [2022-11-03 01:48:54,410 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_tx_timeout [2022-11-03 01:48:54,411 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_tx_timeout [2022-11-03 01:48:54,411 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reinit_locked [2022-11-03 01:48:54,411 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reinit_locked [2022-11-03 01:48:54,411 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_bit [2022-11-03 01:48:54,411 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_bit [2022-11-03 01:48:54,411 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_phy_reg [2022-11-03 01:48:54,412 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_phy_reg [2022-11-03 01:48:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_rx_resources [2022-11-03 01:48:54,412 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_rx_resources [2022-11-03 01:48:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_mdi_clk [2022-11-03 01:48:54,412 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_mdi_clk [2022-11-03 01:48:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-03 01:48:54,412 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-03 01:48:54,413 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-03 01:48:54,413 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-03 01:48:54,413 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 01:48:54,413 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 01:48:54,413 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_copper_link_rtl_setup [2022-11-03 01:48:54,413 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_copper_link_rtl_setup [2022-11-03 01:48:54,414 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-11-03 01:48:54,414 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-11-03 01:48:54,414 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_eeprom [2022-11-03 01:48:54,414 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_eeprom [2022-11-03 01:48:54,414 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_desc_rings [2022-11-03 01:48:54,414 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_desc_rings [2022-11-03 01:48:54,415 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_set_mwi [2022-11-03 01:48:54,415 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_set_mwi [2022-11-03 01:48:54,415 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-03 01:48:54,415 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-03 01:48:54,415 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 01:48:54,415 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 01:48:54,416 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_polarity_reversal_workaround [2022-11-03 01:48:54,416 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_polarity_reversal_workaround [2022-11-03 01:48:54,416 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-03 01:48:54,416 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-03 01:48:54,416 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-03 01:48:54,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-03 01:48:54,416 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 01:48:54,417 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 01:48:54,417 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_link_test [2022-11-03 01:48:54,417 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_link_test [2022-11-03 01:48:54,417 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_mdi_bits [2022-11-03 01:48:54,417 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_mdi_bits [2022-11-03 01:48:54,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_20 [2022-11-03 01:48:54,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_20 [2022-11-03 01:48:54,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 01:48:54,418 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_64k_bound [2022-11-03 01:48:54,418 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_64k_bound [2022-11-03 01:48:54,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 01:48:54,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 01:48:54,419 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_spd_dplx [2022-11-03 01:48:54,419 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_spd_dplx [2022-11-03 01:48:54,419 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2022-11-03 01:48:54,419 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2022-11-03 01:48:54,419 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down [2022-11-03 01:48:54,419 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down [2022-11-03 01:48:54,419 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 01:48:54,420 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 01:48:54,420 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_init_script [2022-11-03 01:48:54,420 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_init_script [2022-11-03 01:48:54,420 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-03 01:48:54,420 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-03 01:48:54,420 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-03 01:48:54,421 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-03 01:48:54,421 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_request_irq [2022-11-03 01:48:54,421 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_request_irq [2022-11-03 01:48:54,421 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-03 01:48:54,421 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-03 01:48:54,421 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_eeprom [2022-11-03 01:48:54,422 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_eeprom [2022-11-03 01:48:54,422 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw [2022-11-03 01:48:54,422 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw [2022-11-03 01:48:54,422 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_disable [2022-11-03 01:48:54,422 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_disable [2022-11-03 01:48:54,422 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-11-03 01:48:54,422 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-11-03 01:48:54,423 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-03 01:48:54,423 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-03 01:48:54,423 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_tx_ring [2022-11-03 01:48:54,427 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_tx_ring [2022-11-03 01:48:54,427 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_shutdown [2022-11-03 01:48:54,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_shutdown [2022-11-03 01:48:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_tx_resources [2022-11-03 01:48:54,428 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_tx_resources [2022-11-03 01:48:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 01:48:54,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 01:48:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-03 01:48:54,429 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-03 01:48:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-03 01:48:54,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-03 01:48:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-03 01:48:54,429 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-03 01:48:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_manageability [2022-11-03 01:48:54,429 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_manageability [2022-11-03 01:48:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-11-03 01:48:54,430 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-11-03 01:48:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-03 01:48:54,430 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-03 01:48:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_wol_exclusion [2022-11-03 01:48:54,430 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_wol_exclusion [2022-11-03 01:48:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 01:48:54,431 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 01:48:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-03 01:48:54,431 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-03 01:48:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_e1000_exit_module_13_2 [2022-11-03 01:48:54,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_e1000_exit_module_13_2 [2022-11-03 01:48:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-03 01:48:54,432 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-03 01:48:54,432 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-03 01:48:54,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:48:54,432 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-11-03 01:48:54,432 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-11-03 01:48:54,432 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_rx_ring [2022-11-03 01:48:54,432 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_rx_ring [2022-11-03 01:48:54,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 01:48:54,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 01:48:54,433 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-03 01:48:56,837 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:48:56,846 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:48:58,551 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 01:50:08,043 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 01:50:08,500 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:50:18,661 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:50:18,661 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-03 01:50:18,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:50:18 BoogieIcfgContainer [2022-11-03 01:50:18,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:50:18,676 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:50:18,676 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:50:18,683 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:50:18,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:48:39" (1/3) ... [2022-11-03 01:50:18,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b430601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:50:18, skipping insertion in model container [2022-11-03 01:50:18,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:48:51" (2/3) ... [2022-11-03 01:50:18,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b430601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:50:18, skipping insertion in model container [2022-11-03 01:50:18,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:50:18" (3/3) ... [2022-11-03 01:50:18,687 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-03 01:50:18,703 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:50:18,703 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-03 01:50:18,868 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:50:18,878 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;@73d93982, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:50:18,878 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-03 01:50:18,902 INFO L276 IsEmpty]: Start isEmpty. Operand has 6725 states, 4311 states have (on average 1.3423799582463465) internal successors, (5787), 4404 states have internal predecessors, (5787), 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 01:50:18,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-11-03 01:50:18,944 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:50:18,945 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 01:50:18,945 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:50:18,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:50:18,955 INFO L85 PathProgramCache]: Analyzing trace with hash 937576385, now seen corresponding path program 1 times [2022-11-03 01:50:18,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:50:18,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723222370] [2022-11-03 01:50:18,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:50:18,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:50:19,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:50:21,522 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 01:50:21,523 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:50:21,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723222370] [2022-11-03 01:50:21,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723222370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:50:21,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:50:21,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:50:21,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986592666] [2022-11-03 01:50:21,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:50:21,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:50:21,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:50:21,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:50:21,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:50:21,587 INFO L87 Difference]: Start difference. First operand has 6725 states, 4311 states have (on average 1.3423799582463465) internal successors, (5787), 4404 states have internal predecessors, (5787), 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 01:50:30,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:32,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:39,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:44,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:46,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:48,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:51,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:53,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:56,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:58,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:58,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:50:58,865 INFO L93 Difference]: Finished difference Result 19515 states and 29433 transitions. [2022-11-03 01:50:58,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:50:58,869 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 01:50:58,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:50:59,041 INFO L225 Difference]: With dead ends: 19515 [2022-11-03 01:50:59,041 INFO L226 Difference]: Without dead ends: 12827 [2022-11-03 01:50:59,124 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 01:50:59,128 INFO L413 NwaCegarLoop]: 11227 mSDtfsCounter, 9199 mSDsluCounter, 10049 mSDsCounter, 0 mSdLazyCounter, 1757 mSolverCounterSat, 7 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9202 SdHoareTripleChecker+Valid, 20416 SdHoareTripleChecker+Invalid, 1772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1757 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:50:59,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9202 Valid, 20416 Invalid, 1772 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1757 Invalid, 8 Unknown, 0 Unchecked, 36.2s Time] [2022-11-03 01:50:59,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12827 states. [2022-11-03 01:51:00,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12827 to 12816. [2022-11-03 01:51:00,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12816 states, 8178 states have (on average 1.3368794326241136) internal successors, (10933), 8359 states have internal predecessors, (10933), 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 01:51:00,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12816 states to 12816 states and 19249 transitions. [2022-11-03 01:51:00,994 INFO L78 Accepts]: Start accepts. Automaton has 12816 states and 19249 transitions. Word has length 250 [2022-11-03 01:51:01,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:51:01,000 INFO L495 AbstractCegarLoop]: Abstraction has 12816 states and 19249 transitions. [2022-11-03 01:51:01,002 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 01:51:01,002 INFO L276 IsEmpty]: Start isEmpty. Operand 12816 states and 19249 transitions. [2022-11-03 01:51:01,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-11-03 01:51:01,026 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:51:01,027 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:51:01,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:51:01,028 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:51:01,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:51:01,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1967086330, now seen corresponding path program 1 times [2022-11-03 01:51:01,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:51:01,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195204651] [2022-11-03 01:51:01,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:01,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:51:01,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:02,894 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 01:51:02,894 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:51:02,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195204651] [2022-11-03 01:51:02,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195204651] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:51:02,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:51:02,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:51:02,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801583987] [2022-11-03 01:51:02,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:51:02,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:51:02,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:51:02,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:51:02,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:51:02,901 INFO L87 Difference]: Start difference. First operand 12816 states and 19249 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-03 01:51:06,194 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 01:51:16,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:18,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:23,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:25,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:29,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:31,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:33,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:36,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:38,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:38,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:51:38,656 INFO L93 Difference]: Finished difference Result 30716 states and 46149 transitions. [2022-11-03 01:51:38,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:51:38,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 275 [2022-11-03 01:51:38,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:51:38,811 INFO L225 Difference]: With dead ends: 30716 [2022-11-03 01:51:38,811 INFO L226 Difference]: Without dead ends: 17947 [2022-11-03 01:51:38,908 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 01:51:38,909 INFO L413 NwaCegarLoop]: 11382 mSDtfsCounter, 8436 mSDsluCounter, 10013 mSDsCounter, 0 mSdLazyCounter, 1840 mSolverCounterSat, 19 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8439 SdHoareTripleChecker+Valid, 20543 SdHoareTripleChecker+Invalid, 1868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1840 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.8s IncrementalHoareTripleChecker+Time [2022-11-03 01:51:38,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8439 Valid, 20543 Invalid, 1868 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 1840 Invalid, 9 Unknown, 0 Unchecked, 34.8s Time] [2022-11-03 01:51:38,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17947 states. [2022-11-03 01:51:40,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17947 to 17937. [2022-11-03 01:51:40,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17937 states, 11485 states have (on average 1.3346103613408795) internal successors, (15328), 11733 states have internal predecessors, (15328), 5799 states have call successors, (5799), 653 states have call predecessors, (5799), 651 states have return successors, (5802), 5765 states have call predecessors, (5802), 5796 states have call successors, (5802) [2022-11-03 01:51:40,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17937 states to 17937 states and 26929 transitions. [2022-11-03 01:51:40,579 INFO L78 Accepts]: Start accepts. Automaton has 17937 states and 26929 transitions. Word has length 275 [2022-11-03 01:51:40,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:51:40,579 INFO L495 AbstractCegarLoop]: Abstraction has 17937 states and 26929 transitions. [2022-11-03 01:51:40,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-03 01:51:40,580 INFO L276 IsEmpty]: Start isEmpty. Operand 17937 states and 26929 transitions. [2022-11-03 01:51:40,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-11-03 01:51:40,590 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:51:40,590 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 01:51:40,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 01:51:40,590 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:51:40,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:51:40,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1777474116, now seen corresponding path program 1 times [2022-11-03 01:51:40,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:51:40,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977957417] [2022-11-03 01:51:40,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:40,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:51:41,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:43,311 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 01:51:43,311 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:51:43,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977957417] [2022-11-03 01:51:43,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977957417] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:51:43,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:51:43,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 01:51:43,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728073409] [2022-11-03 01:51:43,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:51:43,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:51:43,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:51:43,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:51:43,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:51:43,314 INFO L87 Difference]: Start difference. First operand 17937 states and 26929 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 01:51:54,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:58,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:00,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:05,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:10,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:12,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:14,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:19,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:19,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:52:19,526 INFO L93 Difference]: Finished difference Result 29806 states and 44728 transitions. [2022-11-03 01:52:19,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 01:52:19,531 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 01:52:19,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:52:19,867 INFO L225 Difference]: With dead ends: 29806 [2022-11-03 01:52:19,867 INFO L226 Difference]: Without dead ends: 29783 [2022-11-03 01:52:19,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:52:19,899 INFO L413 NwaCegarLoop]: 11239 mSDtfsCounter, 9328 mSDsluCounter, 22111 mSDsCounter, 0 mSdLazyCounter, 2612 mSolverCounterSat, 0 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9331 SdHoareTripleChecker+Valid, 31613 SdHoareTripleChecker+Invalid, 2620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2612 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:52:19,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9331 Valid, 31613 Invalid, 2620 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2612 Invalid, 8 Unknown, 0 Unchecked, 35.1s Time] [2022-11-03 01:52:19,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29783 states. [2022-11-03 01:52:22,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29783 to 29773. [2022-11-03 01:52:22,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29773 states, 19026 states have (on average 1.3332807736781247) internal successors, (25367), 19439 states have internal predecessors, (25367), 9650 states have call successors, (9650), 1097 states have call predecessors, (9650), 1095 states have return successors, (9659), 9598 states have call predecessors, (9659), 9647 states have call successors, (9659) [2022-11-03 01:52:23,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29773 states to 29773 states and 44676 transitions. [2022-11-03 01:52:23,031 INFO L78 Accepts]: Start accepts. Automaton has 29773 states and 44676 transitions. Word has length 292 [2022-11-03 01:52:23,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:52:23,033 INFO L495 AbstractCegarLoop]: Abstraction has 29773 states and 44676 transitions. [2022-11-03 01:52:23,033 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 01:52:23,033 INFO L276 IsEmpty]: Start isEmpty. Operand 29773 states and 44676 transitions. [2022-11-03 01:52:23,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2022-11-03 01:52:23,059 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:52:23,060 INFO L195 NwaCegarLoop]: trace histogram [27, 23, 23, 23, 23, 23, 23, 5, 5, 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] [2022-11-03 01:52:23,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 01:52:23,060 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:52:23,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:52:23,061 INFO L85 PathProgramCache]: Analyzing trace with hash 61968331, now seen corresponding path program 1 times [2022-11-03 01:52:23,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:52:23,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498711303] [2022-11-03 01:52:23,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:52:23,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:52:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:52:24,979 INFO L134 CoverageAnalysis]: Checked inductivity of 2253 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2250 trivial. 0 not checked. [2022-11-03 01:52:24,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:52:24,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498711303] [2022-11-03 01:52:24,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498711303] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:52:24,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:52:24,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:52:24,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974147127] [2022-11-03 01:52:24,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:52:24,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:52:24,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:52:24,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:52:24,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:52:24,984 INFO L87 Difference]: Start difference. First operand 29773 states and 44676 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-03 01:52:34,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:43,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:46,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:50,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:51,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:54,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:58,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:00,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:02,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:05,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:06,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:53:06,323 INFO L93 Difference]: Finished difference Result 65302 states and 98005 transitions. [2022-11-03 01:53:06,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:53:06,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 322 [2022-11-03 01:53:06,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:53:06,828 INFO L225 Difference]: With dead ends: 65302 [2022-11-03 01:53:06,829 INFO L226 Difference]: Without dead ends: 41166 [2022-11-03 01:53:07,012 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 01:53:07,017 INFO L413 NwaCegarLoop]: 17000 mSDtfsCounter, 8522 mSDsluCounter, 10011 mSDsCounter, 0 mSdLazyCounter, 2511 mSolverCounterSat, 15 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8525 SdHoareTripleChecker+Valid, 26159 SdHoareTripleChecker+Invalid, 2533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2511 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.7s IncrementalHoareTripleChecker+Time [2022-11-03 01:53:07,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8525 Valid, 26159 Invalid, 2533 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 2511 Invalid, 7 Unknown, 0 Unchecked, 39.7s Time] [2022-11-03 01:53:07,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41166 states. [2022-11-03 01:53:09,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41166 to 41156. [2022-11-03 01:53:09,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41156 states, 26305 states have (on average 1.3324082873978331) internal successors, (35049), 26873 states have internal predecessors, (35049), 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 01:53:10,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41156 states to 41156 states and 61748 transitions. [2022-11-03 01:53:10,367 INFO L78 Accepts]: Start accepts. Automaton has 41156 states and 61748 transitions. Word has length 322 [2022-11-03 01:53:10,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:53:10,368 INFO L495 AbstractCegarLoop]: Abstraction has 41156 states and 61748 transitions. [2022-11-03 01:53:10,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-03 01:53:10,369 INFO L276 IsEmpty]: Start isEmpty. Operand 41156 states and 61748 transitions. [2022-11-03 01:53:10,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2022-11-03 01:53:10,445 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:53:10,458 INFO L195 NwaCegarLoop]: trace histogram [29, 23, 23, 23, 23, 23, 23, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:53:10,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 01:53:10,459 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:53:10,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:53:10,465 INFO L85 PathProgramCache]: Analyzing trace with hash -474991732, now seen corresponding path program 1 times [2022-11-03 01:53:10,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:53:10,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538217996] [2022-11-03 01:53:10,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:10,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:53:11,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:13,928 INFO L134 CoverageAnalysis]: Checked inductivity of 2473 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2473 trivial. 0 not checked. [2022-11-03 01:53:13,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:53:13,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538217996] [2022-11-03 01:53:13,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538217996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:53:13,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:53:13,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 01:53:13,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929007672] [2022-11-03 01:53:13,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:53:13,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:53:13,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:53:13,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:53:13,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:53:13,934 INFO L87 Difference]: Start difference. First operand 41156 states and 61748 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-11-03 01:53:16,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:35,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:38,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:41,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:43,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:52,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:54,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:57,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:54:01,260 WARN L539 Checker$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 01:54:03,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:54:05,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:54:08,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:54:08,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:54:08,667 INFO L93 Difference]: Finished difference Result 75438 states and 114266 transitions. [2022-11-03 01:54:08,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 01:54:08,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 384 [2022-11-03 01:54:08,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:54:09,409 INFO L225 Difference]: With dead ends: 75438 [2022-11-03 01:54:09,410 INFO L226 Difference]: Without dead ends: 75436 [2022-11-03 01:54:09,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:54:09,456 INFO L413 NwaCegarLoop]: 15330 mSDtfsCounter, 11984 mSDsluCounter, 26934 mSDsCounter, 0 mSdLazyCounter, 3881 mSolverCounterSat, 482 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12471 SdHoareTripleChecker+Valid, 40153 SdHoareTripleChecker+Invalid, 4375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 482 IncrementalHoareTripleChecker+Valid, 3881 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:54:09,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12471 Valid, 40153 Invalid, 4375 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [482 Valid, 3881 Invalid, 12 Unknown, 0 Unchecked, 52.1s Time] [2022-11-03 01:54:09,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75436 states. [2022-11-03 01:54:15,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75436 to 64197. [2022-11-03 01:54:15,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64197 states, 41017 states have (on average 1.3320086793280834) internal successors, (54635), 41910 states have internal predecessors, (54635), 20825 states have call successors, (20825), 2356 states have call predecessors, (20825), 2353 states have return successors, (20852), 20707 states have call predecessors, (20852), 20822 states have call successors, (20852) [2022-11-03 01:54:16,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64197 states to 64197 states and 96312 transitions. [2022-11-03 01:54:16,358 INFO L78 Accepts]: Start accepts. Automaton has 64197 states and 96312 transitions. Word has length 384 [2022-11-03 01:54:16,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:54:16,360 INFO L495 AbstractCegarLoop]: Abstraction has 64197 states and 96312 transitions. [2022-11-03 01:54:16,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-11-03 01:54:16,360 INFO L276 IsEmpty]: Start isEmpty. Operand 64197 states and 96312 transitions. [2022-11-03 01:54:16,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2022-11-03 01:54:16,524 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:54:16,524 INFO L195 NwaCegarLoop]: trace histogram [30, 23, 23, 23, 23, 23, 23, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:54:16,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 01:54:16,526 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:54:16,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:54:16,527 INFO L85 PathProgramCache]: Analyzing trace with hash 346308285, now seen corresponding path program 1 times [2022-11-03 01:54:16,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:54:16,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379366839] [2022-11-03 01:54:16,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:16,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:54:17,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:18,438 INFO L134 CoverageAnalysis]: Checked inductivity of 2544 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2528 trivial. 0 not checked. [2022-11-03 01:54:18,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:54:18,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379366839] [2022-11-03 01:54:18,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379366839] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:54:18,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:54:18,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:54:18,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712235764] [2022-11-03 01:54:18,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:54:18,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:54:18,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:54:18,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:54:18,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:54:18,443 INFO L87 Difference]: Start difference. First operand 64197 states and 96312 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, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-11-03 01:54:22,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:54:36,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:54:38,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:54:41,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:54:43,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:54:46,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:54:50,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:54:52,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:54:53,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:54:53,344 INFO L93 Difference]: Finished difference Result 91395 states and 136897 transitions. [2022-11-03 01:54:53,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:54:53,345 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, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 424 [2022-11-03 01:54:53,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:54:53,515 INFO L225 Difference]: With dead ends: 91395 [2022-11-03 01:54:53,515 INFO L226 Difference]: Without dead ends: 27245 [2022-11-03 01:54:53,841 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 01:54:53,842 INFO L413 NwaCegarLoop]: 12828 mSDtfsCounter, 6391 mSDsluCounter, 9910 mSDsCounter, 0 mSdLazyCounter, 1922 mSolverCounterSat, 7 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6393 SdHoareTripleChecker+Valid, 21935 SdHoareTripleChecker+Invalid, 1937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1922 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.8s IncrementalHoareTripleChecker+Time [2022-11-03 01:54:53,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6393 Valid, 21935 Invalid, 1937 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1922 Invalid, 8 Unknown, 0 Unchecked, 32.8s Time] [2022-11-03 01:54:53,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27245 states. [2022-11-03 01:54:55,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27245 to 27229. [2022-11-03 01:54:55,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27229 states, 17391 states have (on average 1.3274107296877695) internal successors, (23085), 17760 states have internal predecessors, (23085), 8755 states have call successors, (8755), 1087 states have call predecessors, (8755), 1081 states have return successors, (8762), 8696 states have call predecessors, (8762), 8752 states have call successors, (8762) [2022-11-03 01:54:55,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27229 states to 27229 states and 40602 transitions. [2022-11-03 01:54:55,827 INFO L78 Accepts]: Start accepts. Automaton has 27229 states and 40602 transitions. Word has length 424 [2022-11-03 01:54:55,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:54:55,828 INFO L495 AbstractCegarLoop]: Abstraction has 27229 states and 40602 transitions. [2022-11-03 01:54:55,828 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, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-11-03 01:54:55,828 INFO L276 IsEmpty]: Start isEmpty. Operand 27229 states and 40602 transitions. [2022-11-03 01:54:55,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2022-11-03 01:54:55,844 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:54:55,845 INFO L195 NwaCegarLoop]: trace histogram [32, 25, 25, 25, 25, 25, 25, 11, 11, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:54:55,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 01:54:55,845 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:54:55,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:54:55,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1600770536, now seen corresponding path program 1 times [2022-11-03 01:54:55,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:54:55,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560346422] [2022-11-03 01:54:55,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:55,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:54:56,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:59,069 INFO L134 CoverageAnalysis]: Checked inductivity of 2998 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2998 trivial. 0 not checked. [2022-11-03 01:54:59,069 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:54:59,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560346422] [2022-11-03 01:54:59,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560346422] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:54:59,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:54:59,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 01:54:59,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030895605] [2022-11-03 01:54:59,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:54:59,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:54:59,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:54:59,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:54:59,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:54:59,072 INFO L87 Difference]: Start difference. First operand 27229 states and 40602 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-03 01:55:01,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:55:05,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:55:19,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:55:22,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:55:24,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:55:26,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:55:28,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:55:31,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:55:34,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:55:42,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:55:45,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 01:55:46,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:46,555 INFO L93 Difference]: Finished difference Result 55273 states and 83192 transitions. [2022-11-03 01:55:46,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 01:55:46,555 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 489 [2022-11-03 01:55:46,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:46,791 INFO L225 Difference]: With dead ends: 55273 [2022-11-03 01:55:46,791 INFO L226 Difference]: Without dead ends: 55271 [2022-11-03 01:55:46,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:55:46,814 INFO L413 NwaCegarLoop]: 12913 mSDtfsCounter, 12594 mSDsluCounter, 24304 mSDsCounter, 0 mSdLazyCounter, 3471 mSolverCounterSat, 744 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13122 SdHoareTripleChecker+Valid, 35280 SdHoareTripleChecker+Invalid, 4224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 744 IncrementalHoareTripleChecker+Valid, 3471 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.6s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:46,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13122 Valid, 35280 Invalid, 4224 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [744 Valid, 3471 Invalid, 9 Unknown, 0 Unchecked, 45.6s Time] [2022-11-03 01:55:46,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55271 states. [2022-11-03 01:55:49,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55271 to 49953. [2022-11-03 01:55:49,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49953 states, 31825 states have (on average 1.330840534171249) internal successors, (42354), 32582 states have internal predecessors, (42354), 16196 states have call successors, (16196), 1945 states have call predecessors, (16196), 1930 states have return successors, (16212), 16060 states have call predecessors, (16212), 16193 states have call successors, (16212) [2022-11-03 01:55:49,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49953 states to 49953 states and 74762 transitions. [2022-11-03 01:55:49,981 INFO L78 Accepts]: Start accepts. Automaton has 49953 states and 74762 transitions. Word has length 489 [2022-11-03 01:55:49,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:49,982 INFO L495 AbstractCegarLoop]: Abstraction has 49953 states and 74762 transitions. [2022-11-03 01:55:49,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-03 01:55:49,982 INFO L276 IsEmpty]: Start isEmpty. Operand 49953 states and 74762 transitions. [2022-11-03 01:55:49,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 524 [2022-11-03 01:55:49,999 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:50,000 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, 1, 1, 1, 1] [2022-11-03 01:55:50,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 01:55:50,000 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:50,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:50,001 INFO L85 PathProgramCache]: Analyzing trace with hash 356648618, now seen corresponding path program 1 times [2022-11-03 01:55:50,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:55:50,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411861507] [2022-11-03 01:55:50,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:50,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:55:50,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:52,767 INFO L134 CoverageAnalysis]: Checked inductivity of 3217 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 3201 trivial. 0 not checked. [2022-11-03 01:55:52,767 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:55:52,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411861507] [2022-11-03 01:55:52,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411861507] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:52,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:52,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:55:52,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153955807] [2022-11-03 01:55:52,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:52,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:55:52,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:55:52,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:55:52,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:55:52,770 INFO L87 Difference]: Start difference. First operand 49953 states and 74762 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2022-11-03 01:56:01,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:56:04,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:56:17,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:56:34,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:56:36,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:56:40,085 WARN L539 Checker$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 01:56:42,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:56:44,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:56:48,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:56:55,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:56:57,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:56:59,764 WARN L539 Checker$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 01:57:02,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 01:57:04,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:57:06,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:57:08,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:57:09,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:57:09,646 INFO L93 Difference]: Finished difference Result 86629 states and 129042 transitions. [2022-11-03 01:57:09,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 01:57:09,647 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) Word has length 523 [2022-11-03 01:57:09,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:57:10,309 INFO L225 Difference]: With dead ends: 86629 [2022-11-03 01:57:10,309 INFO L226 Difference]: Without dead ends: 86528 [2022-11-03 01:57:10,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-03 01:57:10,347 INFO L413 NwaCegarLoop]: 11308 mSDtfsCounter, 10290 mSDsluCounter, 30472 mSDsCounter, 0 mSdLazyCounter, 8414 mSolverCounterSat, 932 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10292 SdHoareTripleChecker+Valid, 39089 SdHoareTripleChecker+Invalid, 9359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 932 IncrementalHoareTripleChecker+Valid, 8414 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 73.9s IncrementalHoareTripleChecker+Time [2022-11-03 01:57:10,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10292 Valid, 39089 Invalid, 9359 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [932 Valid, 8414 Invalid, 13 Unknown, 0 Unchecked, 73.9s Time] [2022-11-03 01:57:10,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86528 states. [2022-11-03 01:57:15,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86528 to 86074. [2022-11-03 01:57:15,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86074 states, 54741 states have (on average 1.3267569098116585) internal successors, (72628), 55966 states have internal predecessors, (72628), 27741 states have call successors, (27741), 3611 states have call predecessors, (27741), 3590 states have return successors, (27771), 27555 states have call predecessors, (27771), 27738 states have call successors, (27771) [2022-11-03 01:57:16,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86074 states to 86074 states and 128140 transitions. [2022-11-03 01:57:16,250 INFO L78 Accepts]: Start accepts. Automaton has 86074 states and 128140 transitions. Word has length 523 [2022-11-03 01:57:16,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:57:16,252 INFO L495 AbstractCegarLoop]: Abstraction has 86074 states and 128140 transitions. [2022-11-03 01:57:16,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2022-11-03 01:57:16,252 INFO L276 IsEmpty]: Start isEmpty. Operand 86074 states and 128140 transitions. [2022-11-03 01:57:16,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2022-11-03 01:57:16,273 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:57:16,273 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, 1, 1] [2022-11-03 01:57:16,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 01:57:16,274 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:57:16,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:57:16,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1675096269, now seen corresponding path program 1 times [2022-11-03 01:57:16,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:57:16,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356111125] [2022-11-03 01:57:16,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:57:16,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:57:16,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:57:19,486 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 01:57:19,487 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:57:19,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356111125] [2022-11-03 01:57:19,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356111125] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:57:19,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:57:19,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 01:57:19,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821643180] [2022-11-03 01:57:19,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:57:19,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:57:19,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:57:19,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:57:19,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:57:19,490 INFO L87 Difference]: Start difference. First operand 86074 states and 128140 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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 01:57:23,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:57:35,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:57:40,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:57:42,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:57:44,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:57:47,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:57:49,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:57:51,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:57:56,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:00,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:02,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:07,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:09,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:58:09,001 INFO L93 Difference]: Finished difference Result 145079 states and 216605 transitions. [2022-11-03 01:58:09,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 01:58:09,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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 521 [2022-11-03 01:58:09,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:58:09,802 INFO L225 Difference]: With dead ends: 145079 [2022-11-03 01:58:09,802 INFO L226 Difference]: Without dead ends: 145026 [2022-11-03 01:58:10,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:58:10,036 INFO L413 NwaCegarLoop]: 11282 mSDtfsCounter, 9550 mSDsluCounter, 22154 mSDsCounter, 0 mSdLazyCounter, 2608 mSolverCounterSat, 0 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9552 SdHoareTripleChecker+Valid, 31699 SdHoareTripleChecker+Invalid, 2619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2608 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.5s IncrementalHoareTripleChecker+Time [2022-11-03 01:58:10,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9552 Valid, 31699 Invalid, 2619 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2608 Invalid, 11 Unknown, 0 Unchecked, 45.5s Time] [2022-11-03 01:58:10,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145026 states. [2022-11-03 01:58:18,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145026 to 144981. [2022-11-03 01:58:18,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144981 states, 92566 states have (on average 1.3296566773977487) internal successors, (123081), 94499 states have internal predecessors, (123081), 46653 states have call successors, (46653), 5782 states have call predecessors, (46653), 5760 states have return successors, (46711), 46390 states have call predecessors, (46711), 46650 states have call successors, (46711) [2022-11-03 01:58:19,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144981 states to 144981 states and 216445 transitions. [2022-11-03 01:58:19,987 INFO L78 Accepts]: Start accepts. Automaton has 144981 states and 216445 transitions. Word has length 521 [2022-11-03 01:58:19,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:58:19,988 INFO L495 AbstractCegarLoop]: Abstraction has 144981 states and 216445 transitions. [2022-11-03 01:58:19,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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 01:58:19,988 INFO L276 IsEmpty]: Start isEmpty. Operand 144981 states and 216445 transitions. [2022-11-03 01:58:20,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 685 [2022-11-03 01:58:20,147 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:58:20,147 INFO L195 NwaCegarLoop]: trace histogram [35, 25, 25, 25, 25, 25, 25, 13, 13, 6, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:58:20,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 01:58:20,148 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:58:20,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:58:20,148 INFO L85 PathProgramCache]: Analyzing trace with hash -158330707, now seen corresponding path program 1 times [2022-11-03 01:58:20,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:58:20,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022520444] [2022-11-03 01:58:20,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:58:20,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:58:21,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:58:22,163 INFO L134 CoverageAnalysis]: Checked inductivity of 3367 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3349 trivial. 0 not checked. [2022-11-03 01:58:22,163 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:58:22,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022520444] [2022-11-03 01:58:22,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022520444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:58:22,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:58:22,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:58:22,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339203799] [2022-11-03 01:58:22,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:58:22,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:58:22,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:58:22,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:58:22,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:58:22,167 INFO L87 Difference]: Start difference. First operand 144981 states and 216445 transitions. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 3 states have call successors, (89), 2 states have call predecessors, (89), 1 states have return successors, (88), 3 states have call predecessors, (88), 3 states have call successors, (88) [2022-11-03 01:58:25,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:30,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:32,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:34,995 WARN L539 Checker$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 01:58:39,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:44,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:51,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:53,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:59,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:59,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:58:59,586 INFO L93 Difference]: Finished difference Result 219834 states and 327650 transitions. [2022-11-03 01:58:59,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:58:59,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 3 states have call successors, (89), 2 states have call predecessors, (89), 1 states have return successors, (88), 3 states have call predecessors, (88), 3 states have call successors, (88) Word has length 684 [2022-11-03 01:58:59,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:58:59,984 INFO L225 Difference]: With dead ends: 219834 [2022-11-03 01:58:59,984 INFO L226 Difference]: Without dead ends: 79994 [2022-11-03 01:59:00,878 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 01:59:00,879 INFO L413 NwaCegarLoop]: 10735 mSDtfsCounter, 6994 mSDsluCounter, 9911 mSDsCounter, 0 mSdLazyCounter, 1805 mSolverCounterSat, 7 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6996 SdHoareTripleChecker+Valid, 19842 SdHoareTripleChecker+Invalid, 1818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1805 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.6s IncrementalHoareTripleChecker+Time [2022-11-03 01:59:00,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6996 Valid, 19842 Invalid, 1818 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1805 Invalid, 6 Unknown, 0 Unchecked, 32.6s Time] [2022-11-03 01:59:00,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79994 states.