./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.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_85d73559-e4e4-4b65-a2a9-2b05312cc33d/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d73559-e4e4-4b65-a2a9-2b05312cc33d/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_85d73559-e4e4-4b65-a2a9-2b05312cc33d/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d73559-e4e4-4b65-a2a9-2b05312cc33d/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d73559-e4e4-4b65-a2a9-2b05312cc33d/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_85d73559-e4e4-4b65-a2a9-2b05312cc33d/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 b5d2eeaaae10ee4c57bd86d22cba165fc727430aa2a7f660f053fb73e5712838 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 03:44:45,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:44:45,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:44:45,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:44:45,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:44:45,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:44:45,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:44:45,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:44:45,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:44:45,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:44:45,977 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:44:45,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:44:45,979 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:44:45,980 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:44:45,981 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:44:45,982 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:44:45,983 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:44:45,984 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:44:45,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:44:45,988 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:44:45,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:44:45,992 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:44:45,993 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:44:45,994 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:44:45,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:44:45,998 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:44:45,999 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:44:46,000 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:44:46,000 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:44:46,001 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:44:46,002 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:44:46,003 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:44:46,004 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:44:46,004 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:44:46,005 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:44:46,006 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:44:46,007 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:44:46,007 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:44:46,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:44:46,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:44:46,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:44:46,010 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d73559-e4e4-4b65-a2a9-2b05312cc33d/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:44:46,031 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:44:46,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:44:46,032 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:44:46,032 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:44:46,033 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:44:46,033 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:44:46,034 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:44:46,034 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:44:46,034 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:44:46,034 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:44:46,035 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:44:46,035 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:44:46,035 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:44:46,035 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:44:46,035 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:44:46,036 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:44:46,036 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:44:46,036 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:44:46,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:44:46,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:44:46,037 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:44:46,038 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:44:46,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:44:46,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:44:46,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:44:46,039 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:44:46,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:44:46,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:44:46,039 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:44:46,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:44:46,040 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:44:46,040 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:44:46,040 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:44:46,041 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:44:46,041 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:44:46,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:44:46,041 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:44:46,042 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:44:46,042 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_85d73559-e4e4-4b65-a2a9-2b05312cc33d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d73559-e4e4-4b65-a2a9-2b05312cc33d/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5d2eeaaae10ee4c57bd86d22cba165fc727430aa2a7f660f053fb73e5712838 [2022-11-03 03:44:46,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:44:46,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:44:46,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:44:46,399 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:44:46,399 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:44:46,401 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d73559-e4e4-4b65-a2a9-2b05312cc33d/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i [2022-11-03 03:44:46,479 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d73559-e4e4-4b65-a2a9-2b05312cc33d/bin/utaipan-7li7fVZpFI/data/d8cb57043/950ac63976c14e939d583653e7305dc5/FLAG14cdf6eed [2022-11-03 03:44:47,635 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:44:47,638 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d73559-e4e4-4b65-a2a9-2b05312cc33d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i [2022-11-03 03:44:47,726 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d73559-e4e4-4b65-a2a9-2b05312cc33d/bin/utaipan-7li7fVZpFI/data/d8cb57043/950ac63976c14e939d583653e7305dc5/FLAG14cdf6eed [2022-11-03 03:44:47,817 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d73559-e4e4-4b65-a2a9-2b05312cc33d/bin/utaipan-7li7fVZpFI/data/d8cb57043/950ac63976c14e939d583653e7305dc5 [2022-11-03 03:44:47,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:44:47,822 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:44:47,826 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:44:47,826 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:44:47,830 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:44:47,831 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:44:47" (1/1) ... [2022-11-03 03:44:47,832 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2655e89e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:47, skipping insertion in model container [2022-11-03 03:44:47,832 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:44:47" (1/1) ... [2022-11-03 03:44:47,839 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:44:48,033 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:44:51,790 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_85d73559-e4e4-4b65-a2a9-2b05312cc33d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i[454757,454770] [2022-11-03 03:44:51,793 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_85d73559-e4e4-4b65-a2a9-2b05312cc33d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i[454904,454917] [2022-11-03 03:44:51,794 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_85d73559-e4e4-4b65-a2a9-2b05312cc33d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i[455043,455056] [2022-11-03 03:44:51,794 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_85d73559-e4e4-4b65-a2a9-2b05312cc33d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i[455201,455214] [2022-11-03 03:44:51,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:44:51,898 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:44:52,427 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_85d73559-e4e4-4b65-a2a9-2b05312cc33d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i[454757,454770] [2022-11-03 03:44:52,428 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_85d73559-e4e4-4b65-a2a9-2b05312cc33d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i[454904,454917] [2022-11-03 03:44:52,428 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_85d73559-e4e4-4b65-a2a9-2b05312cc33d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i[455043,455056] [2022-11-03 03:44:52,429 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_85d73559-e4e4-4b65-a2a9-2b05312cc33d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i[455201,455214] [2022-11-03 03:44:52,475 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:44:52,714 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:44:52,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:52 WrapperNode [2022-11-03 03:44:52,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:44:52,716 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:44:52,716 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:44:52,716 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:44:52,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:52" (1/1) ... [2022-11-03 03:44:52,882 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:52" (1/1) ... [2022-11-03 03:44:53,261 INFO L138 Inliner]: procedures = 460, calls = 5099, calls flagged for inlining = 268, calls inlined = 251, statements flattened = 11051 [2022-11-03 03:44:53,262 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:44:53,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:44:53,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:44:53,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:44:53,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:52" (1/1) ... [2022-11-03 03:44:53,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:52" (1/1) ... [2022-11-03 03:44:53,331 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:52" (1/1) ... [2022-11-03 03:44:53,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:52" (1/1) ... [2022-11-03 03:44:53,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:52" (1/1) ... [2022-11-03 03:44:53,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:52" (1/1) ... [2022-11-03 03:44:53,742 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:52" (1/1) ... [2022-11-03 03:44:53,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:52" (1/1) ... [2022-11-03 03:44:53,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:44:53,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:44:53,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:44:53,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:44:53,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:52" (1/1) ... [2022-11-03 03:44:53,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:44:53,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d73559-e4e4-4b65-a2a9-2b05312cc33d/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:44:53,869 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d73559-e4e4-4b65-a2a9-2b05312cc33d/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:44:53,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d73559-e4e4-4b65-a2a9-2b05312cc33d/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:44:53,914 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_up [2022-11-03 03:44:53,915 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_up [2022-11-03 03:44:53,915 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_media_task [2022-11-03 03:44:53,915 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_media_task [2022-11-03 03:44:53,915 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-03 03:44:53,915 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-03 03:44:53,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 03:44:53,915 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 03:44:53,916 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-03 03:44:53,916 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-03 03:44:53,916 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 03:44:53,916 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 03:44:53,916 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_select_media [2022-11-03 03:44:53,916 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_select_media [2022-11-03 03:44:53,916 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit_le [2022-11-03 03:44:53,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit_le [2022-11-03 03:44:53,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 03:44:53,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 03:44:53,917 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-03 03:44:53,917 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-03 03:44:53,917 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 03:44:53,917 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 03:44:53,917 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-03 03:44:53,917 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-03 03:44:53,918 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-03 03:44:53,918 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-03 03:44:53,918 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-11-03 03:44:53,918 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-11-03 03:44:53,918 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-03 03:44:53,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-03 03:44:53,918 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-03 03:44:53,918 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-03 03:44:53,919 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-11-03 03:44:53,919 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-11-03 03:44:53,919 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 03:44:53,919 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 03:44:53,919 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-03 03:44:53,919 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-03 03:44:53,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 03:44:53,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 03:44:53,919 INFO L130 BoogieDeclarations]: Found specification of procedure pnic_do_nway [2022-11-03 03:44:53,920 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic_do_nway [2022-11-03 03:44:53,920 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 03:44:53,920 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 03:44:53,920 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-03 03:44:53,920 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-03 03:44:53,920 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 03:44:53,920 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 03:44:53,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 03:44:53,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 03:44:53,921 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 03:44:53,921 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 03:44:53,921 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-03 03:44:53,921 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-03 03:44:53,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:44:53,921 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_set_wolopts [2022-11-03 03:44:53,921 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_set_wolopts [2022-11-03 03:44:53,921 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_resume [2022-11-03 03:44:53,922 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_resume [2022-11-03 03:44:53,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-11-03 03:44:53,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-11-03 03:44:53,922 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_interrupt [2022-11-03 03:44:53,922 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_interrupt [2022-11-03 03:44:53,922 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 03:44:53,922 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 03:44:53,922 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 03:44:53,922 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 03:44:53,923 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___3 [2022-11-03 03:44:53,923 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___3 [2022-11-03 03:44:53,923 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___1 [2022-11-03 03:44:53,923 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___1 [2022-11-03 03:44:53,923 INFO L130 BoogieDeclarations]: Found specification of procedure t21142_media_task [2022-11-03 03:44:53,923 INFO L138 BoogieDeclarations]: Found implementation of procedure t21142_media_task [2022-11-03 03:44:53,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 03:44:53,923 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___4 [2022-11-03 03:44:53,923 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___4 [2022-11-03 03:44:53,924 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 03:44:53,924 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 03:44:53,924 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 03:44:53,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 03:44:53,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 03:44:53,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 03:44:53,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 03:44:53,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:44:53,924 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-11-03 03:44:53,925 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-11-03 03:44:53,925 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 03:44:53,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 03:44:53,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 03:44:53,925 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 03:44:53,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-03 03:44:53,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-03 03:44:53,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 03:44:53,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 03:44:53,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 03:44:53,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 03:44:53,926 INFO L130 BoogieDeclarations]: Found specification of procedure pnic_timer [2022-11-03 03:44:53,926 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic_timer [2022-11-03 03:44:53,926 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-03 03:44:53,926 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-03 03:44:53,926 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 03:44:53,926 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 03:44:53,926 INFO L130 BoogieDeclarations]: Found specification of procedure poll_tulip [2022-11-03 03:44:53,927 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_tulip [2022-11-03 03:44:53,927 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_mdio_write [2022-11-03 03:44:53,927 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_mdio_write [2022-11-03 03:44:53,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:44:53,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-03 03:44:53,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-03 03:44:53,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 03:44:53,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 03:44:53,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-03 03:44:53,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-03 03:44:53,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-03 03:44:53,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-03 03:44:53,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:44:53,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 03:44:53,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 03:44:53,928 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 03:44:53,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 03:44:53,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 03:44:53,928 INFO L130 BoogieDeclarations]: Found specification of procedure t21142_start_nway [2022-11-03 03:44:53,929 INFO L138 BoogieDeclarations]: Found implementation of procedure t21142_start_nway [2022-11-03 03:44:53,929 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-03 03:44:53,929 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-03 03:44:53,929 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-11-03 03:44:53,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-11-03 03:44:53,929 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 03:44:53,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 03:44:53,929 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-03 03:44:53,929 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-03 03:44:53,930 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 03:44:53,930 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 03:44:53,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-03 03:44:53,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-03 03:44:53,930 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 03:44:53,930 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 03:44:53,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:44:53,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:44:53,930 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_close [2022-11-03 03:44:53,931 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_close [2022-11-03 03:44:53,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 03:44:53,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 03:44:53,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 03:44:53,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 03:44:53,931 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-11-03 03:44:53,931 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-11-03 03:44:53,931 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-03 03:44:53,931 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-03 03:44:53,932 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_set_power_state [2022-11-03 03:44:53,932 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_set_power_state [2022-11-03 03:44:53,932 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-03 03:44:53,932 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-03 03:44:53,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_tulip_cleanup_19_2 [2022-11-03 03:44:53,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_tulip_cleanup_19_2 [2022-11-03 03:44:53,932 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2022-11-03 03:44:53,932 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2022-11-03 03:44:53,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-03 03:44:53,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-03 03:44:53,933 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_tx_timeout [2022-11-03 03:44:53,933 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_tx_timeout [2022-11-03 03:44:53,933 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_check_duplex [2022-11-03 03:44:53,933 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_check_duplex [2022-11-03 03:44:53,933 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-03 03:44:53,933 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-03 03:44:53,933 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2022-11-03 03:44:53,934 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2022-11-03 03:44:53,934 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2022-11-03 03:44:53,934 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2022-11-03 03:44:53,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 03:44:53,934 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 03:44:53,934 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 03:44:53,934 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 03:44:53,934 INFO L130 BoogieDeclarations]: Found specification of procedure comet_timer [2022-11-03 03:44:53,934 INFO L138 BoogieDeclarations]: Found implementation of procedure comet_timer [2022-11-03 03:44:53,935 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-03 03:44:53,935 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-03 03:44:53,935 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 03:44:53,935 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 03:44:53,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:44:53,935 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_mdio_read [2022-11-03 03:44:53,935 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_mdio_read [2022-11-03 03:44:53,935 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 03:44:53,935 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 03:44:53,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 03:44:53,936 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-03 03:44:53,936 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-03 03:44:53,936 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-03 03:44:53,936 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-03 03:44:53,936 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2022-11-03 03:44:53,936 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2022-11-03 03:44:53,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 03:44:53,937 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_down [2022-11-03 03:44:53,937 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_down [2022-11-03 03:44:53,937 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_stop_rxtx___2 [2022-11-03 03:44:53,937 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_stop_rxtx___2 [2022-11-03 03:44:53,937 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-03 03:44:53,937 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-03 03:44:53,937 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_remove_one [2022-11-03 03:44:53,937 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_remove_one [2022-11-03 03:44:53,937 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 03:44:53,938 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 03:44:53,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-03 03:44:53,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-03 03:44:53,938 INFO L130 BoogieDeclarations]: Found specification of procedure mxic_timer [2022-11-03 03:44:53,938 INFO L138 BoogieDeclarations]: Found implementation of procedure mxic_timer [2022-11-03 03:44:53,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 03:44:53,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 03:44:53,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-03 03:44:53,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-03 03:44:53,939 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_free_ring [2022-11-03 03:44:53,939 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_free_ring [2022-11-03 03:44:53,939 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-03 03:44:53,939 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-03 03:44:53,939 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_refill_rx [2022-11-03 03:44:53,939 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_refill_rx [2022-11-03 03:44:53,939 INFO L130 BoogieDeclarations]: Found specification of procedure pnic2_timer [2022-11-03 03:44:53,940 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic2_timer [2022-11-03 03:44:53,940 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-03 03:44:53,940 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-03 03:44:53,940 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 03:44:53,940 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 03:44:53,940 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-03 03:44:53,940 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-03 03:44:53,941 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 03:44:53,941 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 03:44:53,941 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 03:44:53,941 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 03:44:53,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:44:53,941 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx [2022-11-03 03:44:53,941 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx [2022-11-03 03:44:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 03:44:53,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 03:44:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2022-11-03 03:44:53,942 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2022-11-03 03:44:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_start_rxtx [2022-11-03 03:44:53,942 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_start_rxtx [2022-11-03 03:44:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 03:44:53,943 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 03:44:53,943 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_open [2022-11-03 03:44:53,943 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_open [2022-11-03 03:44:53,943 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-03 03:44:53,943 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-03 03:44:53,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 03:44:53,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 03:44:53,944 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-03 03:44:53,944 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-03 03:44:53,944 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-03 03:44:53,944 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-03 03:44:53,944 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-03 03:44:53,944 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-03 03:44:53,945 INFO L130 BoogieDeclarations]: Found specification of procedure pnic2_start_nway [2022-11-03 03:44:53,945 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic2_start_nway [2022-11-03 03:44:53,945 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-03 03:44:53,945 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-03 03:44:53,945 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_read_eeprom [2022-11-03 03:44:53,945 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_read_eeprom [2022-11-03 03:44:53,945 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 03:44:53,946 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 03:44:53,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:44:53,946 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_timer [2022-11-03 03:44:53,946 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_timer [2022-11-03 03:44:53,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 03:44:53,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 03:44:55,193 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:44:55,199 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:44:56,588 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 03:45:05,666 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 03:45:05,851 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:45:09,644 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:45:09,644 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 03:45:09,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:45:09 BoogieIcfgContainer [2022-11-03 03:45:09,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:45:09,654 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:45:09,654 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:45:09,658 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:45:09,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:44:47" (1/3) ... [2022-11-03 03:45:09,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d34b2bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:45:09, skipping insertion in model container [2022-11-03 03:45:09,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:52" (2/3) ... [2022-11-03 03:45:09,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d34b2bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:45:09, skipping insertion in model container [2022-11-03 03:45:09,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:45:09" (3/3) ... [2022-11-03 03:45:09,661 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i [2022-11-03 03:45:09,682 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:45:09,682 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-03 03:45:09,814 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:45:09,821 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;@27a1d18, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:45:09,821 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-03 03:45:09,833 INFO L276 IsEmpty]: Start isEmpty. Operand has 2561 states, 1523 states have (on average 1.3545633617859487) internal successors, (2063), 1622 states have internal predecessors, (2063), 914 states have call successors, (914), 124 states have call predecessors, (914), 123 states have return successors, (907), 863 states have call predecessors, (907), 907 states have call successors, (907) [2022-11-03 03:45:09,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-11-03 03:45:09,854 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:45:09,854 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:45:09,855 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 03:45:09,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:45:09,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1599478790, now seen corresponding path program 1 times [2022-11-03 03:45:09,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:45:09,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386747343] [2022-11-03 03:45:09,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:09,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:45:10,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:11,324 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2022-11-03 03:45:11,325 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:45:11,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386747343] [2022-11-03 03:45:11,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386747343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:45:11,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:45:11,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:45:11,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758757722] [2022-11-03 03:45:11,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:45:11,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:45:11,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:45:11,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:45:11,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:45:11,376 INFO L87 Difference]: Start difference. First operand has 2561 states, 1523 states have (on average 1.3545633617859487) internal successors, (2063), 1622 states have internal predecessors, (2063), 914 states have call successors, (914), 124 states have call predecessors, (914), 123 states have return successors, (907), 863 states have call predecessors, (907), 907 states have call successors, (907) Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-03 03:45:17,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:45:18,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:45:18,432 INFO L93 Difference]: Finished difference Result 7403 states and 11260 transitions. [2022-11-03 03:45:18,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:45:18,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 150 [2022-11-03 03:45:18,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:45:18,506 INFO L225 Difference]: With dead ends: 7403 [2022-11-03 03:45:18,507 INFO L226 Difference]: Without dead ends: 4858 [2022-11-03 03:45:18,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:45:18,531 INFO L413 NwaCegarLoop]: 4275 mSDtfsCounter, 3515 mSDsluCounter, 3825 mSDsCounter, 0 mSdLazyCounter, 875 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3515 SdHoareTripleChecker+Valid, 7683 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 875 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:45:18,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3515 Valid, 7683 Invalid, 883 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 875 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-11-03 03:45:18,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4858 states. [2022-11-03 03:45:19,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4858 to 4845. [2022-11-03 03:45:19,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4845 states, 2879 states have (on average 1.3459534560611324) internal successors, (3875), 3064 states have internal predecessors, (3875), 1724 states have call successors, (1724), 241 states have call predecessors, (1724), 240 states have return successors, (1721), 1638 states have call predecessors, (1721), 1721 states have call successors, (1721) [2022-11-03 03:45:19,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4845 states to 4845 states and 7320 transitions. [2022-11-03 03:45:19,070 INFO L78 Accepts]: Start accepts. Automaton has 4845 states and 7320 transitions. Word has length 150 [2022-11-03 03:45:19,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:45:19,074 INFO L495 AbstractCegarLoop]: Abstraction has 4845 states and 7320 transitions. [2022-11-03 03:45:19,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-03 03:45:19,074 INFO L276 IsEmpty]: Start isEmpty. Operand 4845 states and 7320 transitions. [2022-11-03 03:45:19,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-11-03 03:45:19,092 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:45:19,092 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:45:19,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:45:19,093 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:45:19,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:45:19,094 INFO L85 PathProgramCache]: Analyzing trace with hash 606345749, now seen corresponding path program 1 times [2022-11-03 03:45:19,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:45:19,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241524960] [2022-11-03 03:45:19,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:19,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:45:19,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:19,953 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2022-11-03 03:45:19,953 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:45:19,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241524960] [2022-11-03 03:45:19,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241524960] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:45:19,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:45:19,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:45:19,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042730050] [2022-11-03 03:45:19,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:45:19,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:45:19,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:45:19,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:45:19,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:45:19,958 INFO L87 Difference]: Start difference. First operand 4845 states and 7320 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-03 03:45:26,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:45:26,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:45:26,843 INFO L93 Difference]: Finished difference Result 10695 states and 16180 transitions. [2022-11-03 03:45:26,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:45:26,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 163 [2022-11-03 03:45:26,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:45:26,895 INFO L225 Difference]: With dead ends: 10695 [2022-11-03 03:45:26,895 INFO L226 Difference]: Without dead ends: 5877 [2022-11-03 03:45:26,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:45:26,926 INFO L413 NwaCegarLoop]: 4000 mSDtfsCounter, 2522 mSDsluCounter, 3797 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2522 SdHoareTripleChecker+Valid, 7385 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 903 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:45:26,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2522 Valid, 7385 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 903 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-11-03 03:45:26,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5877 states. [2022-11-03 03:45:27,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5877 to 5870. [2022-11-03 03:45:27,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5870 states, 3539 states have (on average 1.3520768578694546) internal successors, (4785), 3752 states have internal predecessors, (4785), 2041 states have call successors, (2041), 290 states have call predecessors, (2041), 288 states have return successors, (2038), 1941 states have call predecessors, (2038), 2038 states have call successors, (2038) [2022-11-03 03:45:27,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5870 states to 5870 states and 8864 transitions. [2022-11-03 03:45:27,591 INFO L78 Accepts]: Start accepts. Automaton has 5870 states and 8864 transitions. Word has length 163 [2022-11-03 03:45:27,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:45:27,593 INFO L495 AbstractCegarLoop]: Abstraction has 5870 states and 8864 transitions. [2022-11-03 03:45:27,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-03 03:45:27,594 INFO L276 IsEmpty]: Start isEmpty. Operand 5870 states and 8864 transitions. [2022-11-03 03:45:27,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-03 03:45:27,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:45:27,608 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 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] [2022-11-03 03:45:27,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:45:27,609 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 03:45:27,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:45:27,619 INFO L85 PathProgramCache]: Analyzing trace with hash -913755738, now seen corresponding path program 1 times [2022-11-03 03:45:27,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:45:27,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929847410] [2022-11-03 03:45:27,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:27,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:45:27,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:29,018 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 767 trivial. 0 not checked. [2022-11-03 03:45:29,019 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:45:29,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929847410] [2022-11-03 03:45:29,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929847410] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:45:29,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:45:29,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:45:29,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137644248] [2022-11-03 03:45:29,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:45:29,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:45:29,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:45:29,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:45:29,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:45:29,024 INFO L87 Difference]: Start difference. First operand 5870 states and 8864 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-03 03:45:35,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:45:38,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:45:38,317 INFO L93 Difference]: Finished difference Result 9918 states and 14960 transitions. [2022-11-03 03:45:38,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:45:38,321 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 192 [2022-11-03 03:45:38,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:45:38,402 INFO L225 Difference]: With dead ends: 9918 [2022-11-03 03:45:38,402 INFO L226 Difference]: Without dead ends: 9895 [2022-11-03 03:45:38,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:45:38,413 INFO L413 NwaCegarLoop]: 4265 mSDtfsCounter, 3537 mSDsluCounter, 8500 mSDsCounter, 0 mSdLazyCounter, 1289 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3537 SdHoareTripleChecker+Valid, 11912 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1289 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:45:38,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3537 Valid, 11912 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1289 Invalid, 1 Unknown, 0 Unchecked, 8.8s Time] [2022-11-03 03:45:38,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9895 states. [2022-11-03 03:45:39,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9895 to 9882. [2022-11-03 03:45:39,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9882 states, 5946 states have (on average 1.3491422805247224) internal successors, (8022), 6301 states have internal predecessors, (8022), 3441 states have call successors, (3441), 495 states have call predecessors, (3441), 493 states have return successors, (3438), 3277 states have call predecessors, (3438), 3438 states have call successors, (3438) [2022-11-03 03:45:39,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9882 states to 9882 states and 14901 transitions. [2022-11-03 03:45:39,187 INFO L78 Accepts]: Start accepts. Automaton has 9882 states and 14901 transitions. Word has length 192 [2022-11-03 03:45:39,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:45:39,189 INFO L495 AbstractCegarLoop]: Abstraction has 9882 states and 14901 transitions. [2022-11-03 03:45:39,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-03 03:45:39,190 INFO L276 IsEmpty]: Start isEmpty. Operand 9882 states and 14901 transitions. [2022-11-03 03:45:39,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-11-03 03:45:39,213 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:45:39,214 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 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] [2022-11-03 03:45:39,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:45:39,215 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:45:39,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:45:39,216 INFO L85 PathProgramCache]: Analyzing trace with hash -443860512, now seen corresponding path program 1 times [2022-11-03 03:45:39,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:45:39,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521242805] [2022-11-03 03:45:39,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:39,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:45:39,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:39,996 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2022-11-03 03:45:39,997 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:45:39,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521242805] [2022-11-03 03:45:39,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521242805] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:45:39,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:45:39,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:45:39,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926649616] [2022-11-03 03:45:39,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:45:40,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:45:40,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:45:40,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:45:40,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:45:40,007 INFO L87 Difference]: Start difference. First operand 9882 states and 14901 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-03 03:45:47,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:45:48,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:45:48,348 INFO L93 Difference]: Finished difference Result 21476 states and 32400 transitions. [2022-11-03 03:45:48,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:45:48,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 210 [2022-11-03 03:45:48,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:45:48,460 INFO L225 Difference]: With dead ends: 21476 [2022-11-03 03:45:48,461 INFO L226 Difference]: Without dead ends: 13259 [2022-11-03 03:45:48,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:45:48,512 INFO L413 NwaCegarLoop]: 5674 mSDtfsCounter, 2526 mSDsluCounter, 3795 mSDsCounter, 0 mSdLazyCounter, 1161 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2526 SdHoareTripleChecker+Valid, 9057 SdHoareTripleChecker+Invalid, 1177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1161 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:45:48,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2526 Valid, 9057 Invalid, 1177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1161 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2022-11-03 03:45:48,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13259 states. [2022-11-03 03:45:49,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13259 to 13251. [2022-11-03 03:45:49,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13251 states, 7993 states have (on average 1.349931189791067) internal successors, (10790), 8463 states have internal predecessors, (10790), 4593 states have call successors, (4593), 666 states have call predecessors, (4593), 663 states have return successors, (4590), 4375 states have call predecessors, (4590), 4590 states have call successors, (4590) [2022-11-03 03:45:49,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13251 states to 13251 states and 19973 transitions. [2022-11-03 03:45:49,479 INFO L78 Accepts]: Start accepts. Automaton has 13251 states and 19973 transitions. Word has length 210 [2022-11-03 03:45:49,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:45:49,480 INFO L495 AbstractCegarLoop]: Abstraction has 13251 states and 19973 transitions. [2022-11-03 03:45:49,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-03 03:45:49,481 INFO L276 IsEmpty]: Start isEmpty. Operand 13251 states and 19973 transitions. [2022-11-03 03:45:49,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-11-03 03:45:49,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:45:49,608 INFO L195 NwaCegarLoop]: trace histogram [19, 13, 13, 13, 13, 13, 13, 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] [2022-11-03 03:45:49,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 03:45:49,609 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:45:49,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:45:49,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1032084219, now seen corresponding path program 1 times [2022-11-03 03:45:49,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:45:49,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557974347] [2022-11-03 03:45:49,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:49,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:45:49,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:50,911 INFO L134 CoverageAnalysis]: Checked inductivity of 953 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 953 trivial. 0 not checked. [2022-11-03 03:45:50,911 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:45:50,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557974347] [2022-11-03 03:45:50,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557974347] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:45:50,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:45:50,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:45:50,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861056978] [2022-11-03 03:45:50,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:45:50,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:45:50,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:45:50,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:45:50,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:45:50,914 INFO L87 Difference]: Start difference. First operand 13251 states and 19973 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-03 03:45:57,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:46:01,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:46:01,044 INFO L93 Difference]: Finished difference Result 15446 states and 23537 transitions. [2022-11-03 03:46:01,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:46:01,044 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 272 [2022-11-03 03:46:01,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:46:01,140 INFO L225 Difference]: With dead ends: 15446 [2022-11-03 03:46:01,140 INFO L226 Difference]: Without dead ends: 15444 [2022-11-03 03:46:01,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:46:01,155 INFO L413 NwaCegarLoop]: 4960 mSDtfsCounter, 4578 mSDsluCounter, 9280 mSDsCounter, 0 mSdLazyCounter, 1629 mSolverCounterSat, 166 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4747 SdHoareTripleChecker+Valid, 13315 SdHoareTripleChecker+Invalid, 1796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 1629 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:46:01,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4747 Valid, 13315 Invalid, 1796 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [166 Valid, 1629 Invalid, 1 Unknown, 0 Unchecked, 9.6s Time] [2022-11-03 03:46:01,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15444 states. [2022-11-03 03:46:02,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15444 to 13251. [2022-11-03 03:46:02,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13251 states, 7993 states have (on average 1.3498060803202803) internal successors, (10789), 8463 states have internal predecessors, (10789), 4593 states have call successors, (4593), 666 states have call predecessors, (4593), 663 states have return successors, (4590), 4375 states have call predecessors, (4590), 4590 states have call successors, (4590) [2022-11-03 03:46:02,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13251 states to 13251 states and 19972 transitions. [2022-11-03 03:46:02,560 INFO L78 Accepts]: Start accepts. Automaton has 13251 states and 19972 transitions. Word has length 272 [2022-11-03 03:46:02,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:46:02,566 INFO L495 AbstractCegarLoop]: Abstraction has 13251 states and 19972 transitions. [2022-11-03 03:46:02,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-03 03:46:02,566 INFO L276 IsEmpty]: Start isEmpty. Operand 13251 states and 19972 transitions. [2022-11-03 03:46:02,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2022-11-03 03:46:02,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:46:02,626 INFO L195 NwaCegarLoop]: trace histogram [23, 15, 15, 15, 15, 15, 15, 12, 12, 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, 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] [2022-11-03 03:46:02,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 03:46:02,627 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:46:02,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:46:02,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1178571194, now seen corresponding path program 1 times [2022-11-03 03:46:02,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:46:02,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115554341] [2022-11-03 03:46:02,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:46:02,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:46:02,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:46:03,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1379 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1379 trivial. 0 not checked. [2022-11-03 03:46:03,655 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:46:03,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115554341] [2022-11-03 03:46:03,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115554341] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:46:03,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:46:03,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:46:03,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722482973] [2022-11-03 03:46:03,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:46:03,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:46:03,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:46:03,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:46:03,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:46:03,658 INFO L87 Difference]: Start difference. First operand 13251 states and 19972 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-11-03 03:46:09,181 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 03:46:09,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:46:09,879 INFO L93 Difference]: Finished difference Result 21250 states and 32299 transitions. [2022-11-03 03:46:09,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:46:09,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 413 [2022-11-03 03:46:09,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:46:10,093 INFO L225 Difference]: With dead ends: 21250 [2022-11-03 03:46:10,093 INFO L226 Difference]: Without dead ends: 15357 [2022-11-03 03:46:10,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:46:10,123 INFO L413 NwaCegarLoop]: 4116 mSDtfsCounter, 513 mSDsluCounter, 3906 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 722 SdHoareTripleChecker+Valid, 7625 SdHoareTripleChecker+Invalid, 956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:46:10,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [722 Valid, 7625 Invalid, 956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 939 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-11-03 03:46:10,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15357 states. [2022-11-03 03:46:11,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15357 to 13259. [2022-11-03 03:46:11,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13259 states, 8001 states have (on average 1.349456317960255) internal successors, (10797), 8471 states have internal predecessors, (10797), 4593 states have call successors, (4593), 666 states have call predecessors, (4593), 663 states have return successors, (4590), 4375 states have call predecessors, (4590), 4590 states have call successors, (4590) [2022-11-03 03:46:11,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13259 states to 13259 states and 19980 transitions. [2022-11-03 03:46:11,106 INFO L78 Accepts]: Start accepts. Automaton has 13259 states and 19980 transitions. Word has length 413 [2022-11-03 03:46:11,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:46:11,107 INFO L495 AbstractCegarLoop]: Abstraction has 13259 states and 19980 transitions. [2022-11-03 03:46:11,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-11-03 03:46:11,108 INFO L276 IsEmpty]: Start isEmpty. Operand 13259 states and 19980 transitions. [2022-11-03 03:46:11,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-11-03 03:46:11,173 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:46:11,174 INFO L195 NwaCegarLoop]: trace histogram [23, 15, 15, 15, 15, 15, 15, 12, 12, 4, 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, 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 03:46:11,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 03:46:11,174 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:46:11,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:46:11,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1170876873, now seen corresponding path program 1 times [2022-11-03 03:46:11,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:46:11,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50536079] [2022-11-03 03:46:11,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:46:11,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:46:11,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:46:11,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1391 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1391 trivial. 0 not checked. [2022-11-03 03:46:11,928 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:46:11,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50536079] [2022-11-03 03:46:11,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50536079] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:46:11,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:46:11,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:46:11,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007890159] [2022-11-03 03:46:11,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:46:11,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:46:11,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:46:11,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:46:11,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:46:11,933 INFO L87 Difference]: Start difference. First operand 13259 states and 19980 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 3 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2022-11-03 03:46:16,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:46:19,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:46:19,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:46:19,723 INFO L93 Difference]: Finished difference Result 20379 states and 30861 transitions. [2022-11-03 03:46:19,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:46:19,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 3 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) Word has length 428 [2022-11-03 03:46:19,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:46:19,818 INFO L225 Difference]: With dead ends: 20379 [2022-11-03 03:46:19,818 INFO L226 Difference]: Without dead ends: 14470 [2022-11-03 03:46:19,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:46:19,860 INFO L413 NwaCegarLoop]: 4023 mSDtfsCounter, 565 mSDsluCounter, 3905 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 7511 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:46:19,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 7511 Invalid, 969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 955 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-11-03 03:46:19,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14470 states. [2022-11-03 03:46:20,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14470 to 13458. [2022-11-03 03:46:20,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13458 states, 8143 states have (on average 1.3508534937983545) internal successors, (11000), 8620 states have internal predecessors, (11000), 4650 states have call successors, (4650), 666 states have call predecessors, (4650), 663 states have return successors, (4647), 4431 states have call predecessors, (4647), 4647 states have call successors, (4647) [2022-11-03 03:46:20,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13458 states to 13458 states and 20297 transitions. [2022-11-03 03:46:20,849 INFO L78 Accepts]: Start accepts. Automaton has 13458 states and 20297 transitions. Word has length 428 [2022-11-03 03:46:20,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:46:20,852 INFO L495 AbstractCegarLoop]: Abstraction has 13458 states and 20297 transitions. [2022-11-03 03:46:20,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 3 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2022-11-03 03:46:20,853 INFO L276 IsEmpty]: Start isEmpty. Operand 13458 states and 20297 transitions. [2022-11-03 03:46:20,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2022-11-03 03:46:20,908 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:46:20,908 INFO L195 NwaCegarLoop]: trace histogram [23, 15, 15, 15, 15, 15, 15, 12, 12, 4, 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, 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] [2022-11-03 03:46:20,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 03:46:20,909 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:46:20,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:46:20,910 INFO L85 PathProgramCache]: Analyzing trace with hash -2078071760, now seen corresponding path program 1 times [2022-11-03 03:46:20,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:46:20,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876382684] [2022-11-03 03:46:20,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:46:20,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:46:21,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:46:22,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1391 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1390 trivial. 0 not checked. [2022-11-03 03:46:22,088 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:46:22,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876382684] [2022-11-03 03:46:22,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876382684] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:46:22,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726147710] [2022-11-03 03:46:22,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:46:22,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:46:22,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d73559-e4e4-4b65-a2a9-2b05312cc33d/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:46:22,093 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d73559-e4e4-4b65-a2a9-2b05312cc33d/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:46:22,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d73559-e4e4-4b65-a2a9-2b05312cc33d/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 03:46:24,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:46:24,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 8306 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 03:46:24,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:46:24,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1391 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1391 trivial. 0 not checked. [2022-11-03 03:46:24,965 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:46:24,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726147710] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:46:24,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 03:46:24,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-03 03:46:24,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500948783] [2022-11-03 03:46:24,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:46:24,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:46:24,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:46:24,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:46:24,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:46:24,968 INFO L87 Difference]: Start difference. First operand 13458 states and 20297 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 3 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2022-11-03 03:46:30,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:46:31,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:46:31,515 INFO L93 Difference]: Finished difference Result 20694 states and 31364 transitions. [2022-11-03 03:46:31,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:46:31,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 3 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) Word has length 432 [2022-11-03 03:46:31,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:46:31,604 INFO L225 Difference]: With dead ends: 20694 [2022-11-03 03:46:31,605 INFO L226 Difference]: Without dead ends: 14616 [2022-11-03 03:46:31,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:46:31,638 INFO L413 NwaCegarLoop]: 4225 mSDtfsCounter, 528 mSDsluCounter, 4000 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 708 SdHoareTripleChecker+Valid, 7808 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:46:31,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [708 Valid, 7808 Invalid, 1015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1005 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-11-03 03:46:31,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14616 states. [2022-11-03 03:46:32,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14616 to 13596. [2022-11-03 03:46:32,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13596 states, 8246 states have (on average 1.3507154984234782) internal successors, (11138), 8728 states have internal predecessors, (11138), 4685 states have call successors, (4685), 666 states have call predecessors, (4685), 663 states have return successors, (4682), 4465 states have call predecessors, (4682), 4682 states have call successors, (4682) [2022-11-03 03:46:32,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13596 states to 13596 states and 20505 transitions. [2022-11-03 03:46:32,570 INFO L78 Accepts]: Start accepts. Automaton has 13596 states and 20505 transitions. Word has length 432 [2022-11-03 03:46:32,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:46:32,571 INFO L495 AbstractCegarLoop]: Abstraction has 13596 states and 20505 transitions. [2022-11-03 03:46:32,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 3 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2022-11-03 03:46:32,572 INFO L276 IsEmpty]: Start isEmpty. Operand 13596 states and 20505 transitions. [2022-11-03 03:46:32,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-11-03 03:46:32,619 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:46:32,619 INFO L195 NwaCegarLoop]: trace histogram [23, 15, 15, 15, 15, 15, 15, 12, 12, 3, 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, 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 03:46:32,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d73559-e4e4-4b65-a2a9-2b05312cc33d/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 03:46:32,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d73559-e4e4-4b65-a2a9-2b05312cc33d/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:46:32,833 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:46:32,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:46:32,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1416015219, now seen corresponding path program 1 times [2022-11-03 03:46:32,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:46:32,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18700712] [2022-11-03 03:46:32,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:46:32,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:46:33,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:46:34,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1385 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1384 trivial. 0 not checked. [2022-11-03 03:46:34,226 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:46:34,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18700712] [2022-11-03 03:46:34,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18700712] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:46:34,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65230945] [2022-11-03 03:46:34,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:46:34,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:46:34,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d73559-e4e4-4b65-a2a9-2b05312cc33d/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:46:34,228 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d73559-e4e4-4b65-a2a9-2b05312cc33d/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:46:34,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d73559-e4e4-4b65-a2a9-2b05312cc33d/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 03:46:36,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:46:36,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 8208 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 03:46:36,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:46:36,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1385 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1385 trivial. 0 not checked. [2022-11-03 03:46:36,956 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:46:36,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65230945] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:46:36,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 03:46:36,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-03 03:46:36,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118718719] [2022-11-03 03:46:36,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:46:36,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:46:36,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:46:36,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:46:36,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:46:36,959 INFO L87 Difference]: Start difference. First operand 13596 states and 20505 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 3 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2022-11-03 03:46:42,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:46:43,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:46:43,956 INFO L93 Difference]: Finished difference Result 20932 states and 31726 transitions. [2022-11-03 03:46:43,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:46:43,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 3 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) Word has length 428 [2022-11-03 03:46:43,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:46:44,048 INFO L225 Difference]: With dead ends: 20932 [2022-11-03 03:46:44,048 INFO L226 Difference]: Without dead ends: 14737 [2022-11-03 03:46:44,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 428 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:46:44,084 INFO L413 NwaCegarLoop]: 4220 mSDtfsCounter, 549 mSDsluCounter, 3972 mSDsCounter, 0 mSdLazyCounter, 1003 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 7776 SdHoareTripleChecker+Invalid, 1013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1003 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:46:44,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 7776 Invalid, 1013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1003 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-11-03 03:46:44,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14737 states. [2022-11-03 03:46:45,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14737 to 13714. [2022-11-03 03:46:45,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13714 states, 8333 states have (on average 1.3517340693627744) internal successors, (11264), 8820 states have internal predecessors, (11264), 4716 states have call successors, (4716), 666 states have call predecessors, (4716), 663 states have return successors, (4713), 4495 states have call predecessors, (4713), 4713 states have call successors, (4713) [2022-11-03 03:46:45,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13714 states to 13714 states and 20693 transitions. [2022-11-03 03:46:45,238 INFO L78 Accepts]: Start accepts. Automaton has 13714 states and 20693 transitions. Word has length 428 [2022-11-03 03:46:45,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:46:45,239 INFO L495 AbstractCegarLoop]: Abstraction has 13714 states and 20693 transitions. [2022-11-03 03:46:45,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 3 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2022-11-03 03:46:45,240 INFO L276 IsEmpty]: Start isEmpty. Operand 13714 states and 20693 transitions. [2022-11-03 03:46:45,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2022-11-03 03:46:45,287 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:46:45,287 INFO L195 NwaCegarLoop]: trace histogram [23, 15, 15, 15, 15, 15, 15, 12, 12, 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, 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 03:46:45,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d73559-e4e4-4b65-a2a9-2b05312cc33d/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 03:46:45,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d73559-e4e4-4b65-a2a9-2b05312cc33d/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:46:45,501 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:46:45,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:46:45,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1893952043, now seen corresponding path program 1 times [2022-11-03 03:46:45,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:46:45,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184695409] [2022-11-03 03:46:45,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:46:45,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:46:45,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:46:46,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1383 trivial. 0 not checked. [2022-11-03 03:46:46,906 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:46:46,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184695409] [2022-11-03 03:46:46,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184695409] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:46:46,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515029863] [2022-11-03 03:46:46,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:46:46,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:46:46,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d73559-e4e4-4b65-a2a9-2b05312cc33d/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:46:46,908 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d73559-e4e4-4b65-a2a9-2b05312cc33d/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:46:46,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d73559-e4e4-4b65-a2a9-2b05312cc33d/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 03:46:49,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:46:49,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 8228 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:46:49,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:46:49,594 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 129 proven. 1 refuted. 0 times theorem prover too weak. 1254 trivial. 0 not checked. [2022-11-03 03:46:49,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:46:49,959 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1383 trivial. 0 not checked. [2022-11-03 03:46:49,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1515029863] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:46:49,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [927388834] [2022-11-03 03:46:49,987 INFO L159 IcfgInterpreter]: Started Sifa with 224 locations of interest [2022-11-03 03:46:49,988 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:46:49,992 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:46:49,997 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:46:49,998 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:52:12,721 WARN L234 SmtUtils]: Spent 6.41s on a formula simplification. DAG size of input: 5604 DAG size of output: 5381 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-03 03:52:28,318 WARN L234 SmtUtils]: Spent 6.37s on a formula simplification. DAG size of input: 5604 DAG size of output: 5381 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-03 03:54:20,001 WARN L234 SmtUtils]: Spent 6.70s on a formula simplification. DAG size of input: 5604 DAG size of output: 5381 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-03 03:54:34,526 WARN L234 SmtUtils]: Spent 5.67s on a formula simplification. DAG size of input: 5604 DAG size of output: 5381 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-03 03:58:24,066 WARN L234 SmtUtils]: Spent 5.19s on a formula simplification that was a NOOP. DAG size: 5381 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-03 03:58:29,467 WARN L234 SmtUtils]: Spent 5.29s on a formula simplification. DAG size of input: 5604 DAG size of output: 5381 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-03 03:58:34,799 WARN L234 SmtUtils]: Spent 5.29s on a formula simplification that was a NOOP. DAG size: 5381 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-03 03:58:40,470 WARN L234 SmtUtils]: Spent 5.65s on a formula simplification that was a NOOP. DAG size: 5381 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm)