./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW --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 a5840d200f9b01baa7c7c0720decd9e57e03b81f3e57be2769ef74cbe72cbe99 --- 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-4e7fbc6 [2022-11-23 15:51:05,936 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:51:05,939 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:51:05,989 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:51:05,989 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:51:05,991 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:51:05,992 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:51:05,994 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:51:05,997 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:51:05,998 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:51:06,002 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:51:06,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:51:06,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:51:06,018 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:51:06,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:51:06,020 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:51:06,021 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:51:06,022 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:51:06,024 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:51:06,026 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:51:06,034 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:51:06,037 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:51:06,041 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:51:06,042 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:51:06,054 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:51:06,054 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:51:06,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:51:06,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:51:06,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:51:06,057 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:51:06,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:51:06,058 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:51:06,059 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:51:06,060 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:51:06,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:51:06,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:51:06,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:51:06,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:51:06,066 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:51:06,068 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:51:06,069 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:51:06,070 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 15:51:06,122 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:51:06,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:51:06,123 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:51:06,124 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:51:06,125 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:51:06,125 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:51:06,126 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:51:06,126 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:51:06,126 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:51:06,126 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:51:06,128 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:51:06,128 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:51:06,128 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:51:06,128 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:51:06,129 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:51:06,129 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:51:06,129 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:51:06,129 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:51:06,130 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:51:06,130 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:51:06,131 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:51:06,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:51:06,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:51:06,131 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:51:06,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:51:06,132 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:51:06,133 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:51:06,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:51:06,133 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:51:06,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:51:06,134 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:51:06,134 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:51:06,134 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:51:06,135 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:51:06,135 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:51:06,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:51:06,135 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:51:06,136 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:51:06,136 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_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5840d200f9b01baa7c7c0720decd9e57e03b81f3e57be2769ef74cbe72cbe99 [2022-11-23 15:51:06,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:51:06,493 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:51:06,496 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:51:06,498 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:51:06,498 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:51:06,500 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-23 15:51:09,717 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:51:10,833 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:51:10,834 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-23 15:51:10,932 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/data/7a49b6a9d/ae30a534f0be49c7b82c8c96071f3e77/FLAG642ad71e4 [2022-11-23 15:51:10,955 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/data/7a49b6a9d/ae30a534f0be49c7b82c8c96071f3e77 [2022-11-23 15:51:10,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:51:10,960 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:51:10,962 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:51:10,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:51:10,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:51:10,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:51:10" (1/1) ... [2022-11-23 15:51:10,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f6c971f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:10, skipping insertion in model container [2022-11-23 15:51:10,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:51:10" (1/1) ... [2022-11-23 15:51:10,979 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:51:11,384 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:51:19,644 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i[899162,899175] [2022-11-23 15:51:19,653 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i[899309,899322] [2022-11-23 15:51:19,653 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i[899448,899461] [2022-11-23 15:51:19,654 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i[899606,899619] [2022-11-23 15:51:19,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:51:19,761 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:51:20,880 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i[899162,899175] [2022-11-23 15:51:20,881 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i[899309,899322] [2022-11-23 15:51:20,881 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i[899448,899461] [2022-11-23 15:51:20,882 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i[899606,899619] [2022-11-23 15:51:20,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:51:21,336 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:51:21,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:21 WrapperNode [2022-11-23 15:51:21,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:51:21,338 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:51:21,339 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:51:21,339 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:51:21,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:21" (1/1) ... [2022-11-23 15:51:21,742 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:21" (1/1) ... [2022-11-23 15:51:22,837 INFO L138 Inliner]: procedures = 712, calls = 16193, calls flagged for inlining = 391, calls inlined = 342, statements flattened = 29004 [2022-11-23 15:51:22,838 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:51:22,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:51:22,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:51:22,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:51:22,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:21" (1/1) ... [2022-11-23 15:51:22,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:21" (1/1) ... [2022-11-23 15:51:22,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:21" (1/1) ... [2022-11-23 15:51:22,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:21" (1/1) ... [2022-11-23 15:51:23,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:21" (1/1) ... [2022-11-23 15:51:23,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:21" (1/1) ... [2022-11-23 15:51:23,793 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:21" (1/1) ... [2022-11-23 15:51:23,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:21" (1/1) ... [2022-11-23 15:51:24,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:51:24,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:51:24,201 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:51:24,201 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:51:24,202 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:21" (1/1) ... [2022-11-23 15:51:24,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:51:24,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:51:24,276 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:51:24,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:51:24,403 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-23 15:51:24,403 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-23 15:51:24,403 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_fc_after_link_up [2022-11-23 15:51:24,404 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_fc_after_link_up [2022-11-23 15:51:24,404 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-23 15:51:24,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-23 15:51:24,404 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_collision_dist [2022-11-23 15:51:24,404 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_collision_dist [2022-11-23 15:51:24,404 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_ee_clk [2022-11-23 15:51:24,405 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_ee_clk [2022-11-23 15:51:24,405 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-11-23 15:51:24,405 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-11-23 15:51:24,405 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-23 15:51:24,405 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-23 15:51:24,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 15:51:24,405 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 15:51:24,406 INFO L130 BoogieDeclarations]: Found specification of procedure reg_pattern_test [2022-11-23 15:51:24,406 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_pattern_test [2022-11-23 15:51:24,406 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-23 15:51:24,406 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-23 15:51:24,406 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-23 15:51:24,406 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-23 15:51:24,407 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-23 15:51:24,407 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-23 15:51:24,407 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_eeprom [2022-11-23 15:51:24,407 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_eeprom [2022-11-23 15:51:24,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 15:51:24,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 15:51:24,407 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_manageability [2022-11-23 15:51:24,408 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_manageability [2022-11-23 15:51:24,408 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_in_ee_bits [2022-11-23 15:51:24,408 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_in_ee_bits [2022-11-23 15:51:24,408 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down_and_stop [2022-11-23 15:51:24,408 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down_and_stop [2022-11-23 15:51:24,408 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-23 15:51:24,408 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-23 15:51:24,409 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-11-23 15:51:24,409 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-11-23 15:51:24,409 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-23 15:51:24,409 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-23 15:51:24,409 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_unmap_and_free_tx_resource [2022-11-23 15:51:24,409 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_unmap_and_free_tx_resource [2022-11-23 15:51:24,409 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-23 15:51:24,410 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-23 15:51:24,410 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_get_info [2022-11-23 15:51:24,410 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_get_info [2022-11-23 15:51:24,410 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-23 15:51:24,410 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-23 15:51:24,410 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-23 15:51:24,411 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-23 15:51:24,411 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_do_read_eeprom [2022-11-23 15:51:24,411 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_do_read_eeprom [2022-11-23 15:51:24,411 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_rctl [2022-11-23 15:51:24,411 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_rctl [2022-11-23 15:51:24,411 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-23 15:51:24,411 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-23 15:51:24,412 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set [2022-11-23 15:51:24,412 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set [2022-11-23 15:51:24,412 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2022-11-23 15:51:24,412 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2022-11-23 15:51:24,412 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-23 15:51:24,412 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-23 15:51:24,412 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset [2022-11-23 15:51:24,413 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset [2022-11-23 15:51:24,413 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2022-11-23 15:51:24,413 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2022-11-23 15:51:24,413 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_eeprom_params [2022-11-23 15:51:24,413 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_eeprom_params [2022-11-23 15:51:24,413 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2022-11-23 15:51:24,413 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2022-11-23 15:51:24,414 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-23 15:51:24,414 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-23 15:51:24,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-23 15:51:24,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-23 15:51:24,414 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-23 15:51:24,414 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-23 15:51:24,414 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-23 15:51:24,431 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-23 15:51:24,431 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-23 15:51:24,431 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-23 15:51:24,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 15:51:24,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 15:51:24,432 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-23 15:51:24,432 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-23 15:51:24,432 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-23 15:51:24,432 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-23 15:51:24,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:51:24,432 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-23 15:51:24,432 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-23 15:51:24,433 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg [2022-11-23 15:51:24,433 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg [2022-11-23 15:51:24,433 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_speed_and_duplex [2022-11-23 15:51:24,433 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_speed_and_duplex [2022-11-23 15:51:24,433 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_standby_eeprom [2022-11-23 15:51:24,433 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_standby_eeprom [2022-11-23 15:51:24,433 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_bit [2022-11-23 15:51:24,434 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_bit [2022-11-23 15:51:24,434 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-23 15:51:24,434 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-23 15:51:24,434 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure_rx [2022-11-23 15:51:24,434 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure_rx [2022-11-23 15:51:24,434 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-23 15:51:24,434 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-23 15:51:24,435 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_hw_dev [2022-11-23 15:51:24,435 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_hw_dev [2022-11-23 15:51:24,435 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_stats [2022-11-23 15:51:24,435 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_stats [2022-11-23 15:51:24,435 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_validate_option [2022-11-23 15:51:24,435 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_validate_option [2022-11-23 15:51:24,436 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-23 15:51:24,436 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-23 15:51:24,436 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-23 15:51:24,436 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-23 15:51:24,436 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link [2022-11-23 15:51:24,436 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link [2022-11-23 15:51:24,436 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_irq [2022-11-23 15:51:24,436 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_irq [2022-11-23 15:51:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 15:51:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-23 15:51:24,437 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-23 15:51:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_link [2022-11-23 15:51:24,437 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_link [2022-11-23 15:51:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_vlan_mode [2022-11-23 15:51:24,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_vlan_mode [2022-11-23 15:51:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset [2022-11-23 15:51:24,438 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset [2022-11-23 15:51:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-23 15:51:24,438 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-23 15:51:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_dsp_after_link_change [2022-11-23 15:51:24,438 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_dsp_after_link_change [2022-11-23 15:51:24,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 15:51:24,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-23 15:51:24,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-23 15:51:24,439 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_maybe_stop_tx [2022-11-23 15:51:24,439 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_maybe_stop_tx [2022-11-23 15:51:24,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:51:24,439 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-23 15:51:24,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-23 15:51:24,440 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shutdown [2022-11-23 15:51:24,440 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shutdown [2022-11-23 15:51:24,440 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2022-11-23 15:51:24,440 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2022-11-23 15:51:24,440 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_used [2022-11-23 15:51:24,440 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_used [2022-11-23 15:51:24,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 15:51:24,441 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 15:51:24,441 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_disable_receiver [2022-11-23 15:51:24,441 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_disable_receiver [2022-11-23 15:51:24,441 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_kill_vid [2022-11-23 15:51:24,441 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_kill_vid [2022-11-23 15:51:24,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-23 15:51:24,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-23 15:51:24,442 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_force_mac_fc [2022-11-23 15:51:24,442 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_force_mac_fc [2022-11-23 15:51:24,442 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-23 15:51:24,442 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-23 15:51:24,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-23 15:51:24,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-23 15:51:24,442 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2022-11-23 15:51:24,443 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2022-11-23 15:51:24,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-23 15:51:24,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-23 15:51:24,443 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_leave_82542_rst [2022-11-23 15:51:24,443 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_leave_82542_rst [2022-11-23 15:51:24,443 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_has_link [2022-11-23 15:51:24,443 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_has_link [2022-11-23 15:51:24,444 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-23 15:51:24,444 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-23 15:51:24,444 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-23 15:51:24,444 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-23 15:51:24,444 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2022-11-23 15:51:24,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2022-11-23 15:51:24,444 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_tx_resources [2022-11-23 15:51:24,445 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_tx_resources [2022-11-23 15:51:24,445 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-23 15:51:24,445 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-23 15:51:24,445 INFO L130 BoogieDeclarations]: Found specification of procedure pci_wake_from_d3 [2022-11-23 15:51:24,445 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_wake_from_d3 [2022-11-23 15:51:24,445 INFO L130 BoogieDeclarations]: Found specification of procedure reg_set_and_check [2022-11-23 15:51:24,445 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_set_and_check [2022-11-23 15:51:24,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:51:24,446 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_netpoll [2022-11-23 15:51:24,446 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_netpoll [2022-11-23 15:51:24,446 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-23 15:51:24,446 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-23 15:51:24,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:51:24,446 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-23 15:51:24,447 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-23 15:51:24,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-23 15:51:24,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-23 15:51:24,447 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-23 15:51:24,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-23 15:51:24,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:51:24,447 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_rx_mode [2022-11-23 15:51:24,448 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_rx_mode [2022-11-23 15:51:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-23 15:51:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-23 15:51:24,448 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-23 15:51:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-23 15:51:24,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-23 15:51:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_open [2022-11-23 15:51:24,449 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_open [2022-11-23 15:51:24,449 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-23 15:51:24,449 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-23 15:51:24,449 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_hw_reset [2022-11-23 15:51:24,449 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_hw_reset [2022-11-23 15:51:24,449 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_vfta [2022-11-23 15:51:24,449 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_vfta [2022-11-23 15:51:24,450 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-23 15:51:24,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-23 15:51:24,450 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_remove [2022-11-23 15:51:24,450 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_remove [2022-11-23 15:51:24,450 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_ee_bits [2022-11-23 15:51:24,450 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_ee_bits [2022-11-23 15:51:24,450 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure [2022-11-23 15:51:24,451 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure [2022-11-23 15:51:24,451 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-23 15:51:24,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-23 15:51:24,451 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-23 15:51:24,451 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-23 15:51:24,451 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-23 15:51:24,451 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-23 15:51:24,452 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_cable_length [2022-11-23 15:51:24,452 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_cable_length [2022-11-23 15:51:24,452 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-23 15:51:24,452 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-23 15:51:24,452 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_ee_clk [2022-11-23 15:51:24,452 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_ee_clk [2022-11-23 15:51:24,452 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_rx_resources [2022-11-23 15:51:24,453 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_rx_resources [2022-11-23 15:51:24,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-23 15:51:24,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-23 15:51:24,453 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_add_vid [2022-11-23 15:51:24,453 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_add_vid [2022-11-23 15:51:24,453 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2022-11-23 15:51:24,453 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2022-11-23 15:51:24,453 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2022-11-23 15:51:24,454 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2022-11-23 15:51:24,454 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-23 15:51:24,454 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-23 15:51:24,454 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_write [2022-11-23 15:51:24,454 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_write [2022-11-23 15:51:24,454 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-23 15:51:24,454 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-23 15:51:24,455 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_resume [2022-11-23 15:51:24,455 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_resume [2022-11-23 15:51:24,455 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-23 15:51:24,455 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-23 15:51:24,455 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-23 15:51:24,455 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-23 15:51:24,455 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom [2022-11-23 15:51:24,455 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom [2022-11-23 15:51:24,456 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_enter_82542_rst [2022-11-23 15:51:24,456 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_enter_82542_rst [2022-11-23 15:51:24,456 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_acquire_eeprom [2022-11-23 15:51:24,456 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_acquire_eeprom [2022-11-23 15:51:24,456 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-23 15:51:24,456 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-23 15:51:24,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:51:24,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:51:24,457 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_down_phy [2022-11-23 15:51:24,457 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_down_phy [2022-11-23 15:51:24,457 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-23 15:51:24,457 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-23 15:51:24,457 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2022-11-23 15:51:24,457 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2022-11-23 15:51:24,457 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_spi_eeprom_ready [2022-11-23 15:51:24,458 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_spi_eeprom_ready [2022-11-23 15:51:24,458 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_clear_mwi [2022-11-23 15:51:24,458 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_clear_mwi [2022-11-23 15:51:24,458 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-23 15:51:24,458 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-23 15:51:24,458 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_up_phy [2022-11-23 15:51:24,458 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_up_phy [2022-11-23 15:51:24,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 15:51:24,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 15:51:24,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 15:51:24,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 15:51:24,459 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-23 15:51:24,459 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-23 15:51:24,459 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-23 15:51:24,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-23 15:51:24,460 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-23 15:51:24,460 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-23 15:51:24,460 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg_ex [2022-11-23 15:51:24,460 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg_ex [2022-11-23 15:51:24,460 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-23 15:51:24,460 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-23 15:51:24,460 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-23 15:51:24,461 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-23 15:51:24,461 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-23 15:51:24,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-23 15:51:24,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-23 15:51:24,461 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_resume [2022-11-23 15:51:24,461 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_resume [2022-11-23 15:51:24,461 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-23 15:51:24,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-23 15:51:24,462 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-23 15:51:24,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-23 15:51:24,462 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_polarity [2022-11-23 15:51:24,462 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_polarity [2022-11-23 15:51:24,462 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-23 15:51:24,462 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-23 15:51:24,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 15:51:24,463 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 15:51:24,463 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-23 15:51:24,463 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-23 15:51:24,463 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_mdi_clk [2022-11-23 15:51:24,463 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_mdi_clk [2022-11-23 15:51:24,463 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_mac_to_phy [2022-11-23 15:51:24,463 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_mac_to_phy [2022-11-23 15:51:24,464 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom_len [2022-11-23 15:51:24,464 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom_len [2022-11-23 15:51:24,464 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-23 15:51:24,464 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-23 15:51:24,464 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2022-11-23 15:51:24,464 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2022-11-23 15:51:24,464 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_rx_resources [2022-11-23 15:51:24,465 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_rx_resources [2022-11-23 15:51:24,465 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-11-23 15:51:24,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-11-23 15:51:24,465 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-23 15:51:24,465 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-23 15:51:24,465 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_close [2022-11-23 15:51:24,465 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_close [2022-11-23 15:51:24,465 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset_clk_and_crs [2022-11-23 15:51:24,466 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset_clk_and_crs [2022-11-23 15:51:24,466 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-23 15:51:24,466 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-23 15:51:24,466 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-23 15:51:24,466 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-23 15:51:24,466 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-23 15:51:24,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-23 15:51:24,467 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-23 15:51:24,467 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-23 15:51:24,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:51:24,467 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-23 15:51:24,467 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-23 15:51:24,467 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-23 15:51:24,467 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-23 15:51:24,468 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-23 15:51:24,468 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-23 15:51:24,468 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_regs_len [2022-11-23 15:51:24,468 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_regs_len [2022-11-23 15:51:24,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:51:24,468 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-23 15:51:24,468 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-23 15:51:24,469 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-23 15:51:24,469 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-23 15:51:24,469 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2022-11-23 15:51:24,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2022-11-23 15:51:24,469 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_tx_resources [2022-11-23 15:51:24,469 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_tx_resources [2022-11-23 15:51:24,469 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_setup_autoneg [2022-11-23 15:51:24,470 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_setup_autoneg [2022-11-23 15:51:24,470 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_mng_vlan [2022-11-23 15:51:24,470 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_mng_vlan [2022-11-23 15:51:24,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 15:51:24,470 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_media_type [2022-11-23 15:51:24,470 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_media_type [2022-11-23 15:51:24,470 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_eeprom [2022-11-23 15:51:24,471 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_eeprom [2022-11-23 15:51:24,471 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_filter_on_off [2022-11-23 15:51:24,471 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_filter_on_off [2022-11-23 15:51:24,471 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-23 15:51:24,471 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-23 15:51:24,471 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_nway_reset [2022-11-23 15:51:24,471 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_nway_reset [2022-11-23 15:51:24,472 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-23 15:51:24,472 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-23 15:51:24,472 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_phy_loopback [2022-11-23 15:51:24,472 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_phy_loopback [2022-11-23 15:51:24,472 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-23 15:51:24,472 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-23 15:51:24,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-23 15:51:24,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-23 15:51:24,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-23 15:51:24,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-23 15:51:24,473 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-23 15:51:24,473 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-23 15:51:24,473 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_all_rx_rings [2022-11-23 15:51:24,473 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_all_rx_rings [2022-11-23 15:51:24,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-23 15:51:24,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-23 15:51:24,474 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_enable [2022-11-23 15:51:24,474 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_enable [2022-11-23 15:51:24,474 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_up [2022-11-23 15:51:24,474 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_up [2022-11-23 15:51:24,474 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_tx_timeout [2022-11-23 15:51:24,474 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_tx_timeout [2022-11-23 15:51:24,474 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reinit_locked [2022-11-23 15:51:24,475 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reinit_locked [2022-11-23 15:51:24,475 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_bit [2022-11-23 15:51:24,475 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_bit [2022-11-23 15:51:24,475 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_phy_reg [2022-11-23 15:51:24,475 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_phy_reg [2022-11-23 15:51:24,475 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_rx_resources [2022-11-23 15:51:24,475 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_rx_resources [2022-11-23 15:51:24,476 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_mdi_clk [2022-11-23 15:51:24,476 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_mdi_clk [2022-11-23 15:51:24,476 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-23 15:51:24,476 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-23 15:51:24,476 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-23 15:51:24,476 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-23 15:51:24,476 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-23 15:51:24,476 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-23 15:51:24,477 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_copper_link_rtl_setup [2022-11-23 15:51:24,477 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_copper_link_rtl_setup [2022-11-23 15:51:24,477 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-11-23 15:51:24,477 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-11-23 15:51:24,477 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_eeprom [2022-11-23 15:51:24,477 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_eeprom [2022-11-23 15:51:24,477 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_desc_rings [2022-11-23 15:51:24,477 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_desc_rings [2022-11-23 15:51:24,478 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_set_mwi [2022-11-23 15:51:24,478 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_set_mwi [2022-11-23 15:51:24,478 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-23 15:51:24,478 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-23 15:51:24,478 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-23 15:51:24,478 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-23 15:51:24,478 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_polarity_reversal_workaround [2022-11-23 15:51:24,478 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_polarity_reversal_workaround [2022-11-23 15:51:24,479 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-23 15:51:24,479 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-23 15:51:24,479 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-23 15:51:24,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-23 15:51:24,479 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 15:51:24,479 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 15:51:24,479 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_link_test [2022-11-23 15:51:24,479 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_link_test [2022-11-23 15:51:24,480 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_mdi_bits [2022-11-23 15:51:24,480 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_mdi_bits [2022-11-23 15:51:24,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_20 [2022-11-23 15:51:24,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_20 [2022-11-23 15:51:24,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:51:24,480 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_64k_bound [2022-11-23 15:51:24,480 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_64k_bound [2022-11-23 15:51:24,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 15:51:24,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 15:51:24,481 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_spd_dplx [2022-11-23 15:51:24,481 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_spd_dplx [2022-11-23 15:51:24,481 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2022-11-23 15:51:24,481 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2022-11-23 15:51:24,481 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down [2022-11-23 15:51:24,481 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down [2022-11-23 15:51:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-23 15:51:24,482 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-23 15:51:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_init_script [2022-11-23 15:51:24,482 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_init_script [2022-11-23 15:51:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-23 15:51:24,482 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-23 15:51:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-23 15:51:24,483 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-23 15:51:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_request_irq [2022-11-23 15:51:24,483 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_request_irq [2022-11-23 15:51:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-23 15:51:24,483 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-23 15:51:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_eeprom [2022-11-23 15:51:24,483 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_eeprom [2022-11-23 15:51:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw [2022-11-23 15:51:24,484 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw [2022-11-23 15:51:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_disable [2022-11-23 15:51:24,484 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_disable [2022-11-23 15:51:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-11-23 15:51:24,484 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-11-23 15:51:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-23 15:51:24,484 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-23 15:51:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_tx_ring [2022-11-23 15:51:24,485 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_tx_ring [2022-11-23 15:51:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_shutdown [2022-11-23 15:51:24,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_shutdown [2022-11-23 15:51:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_tx_resources [2022-11-23 15:51:24,485 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_tx_resources [2022-11-23 15:51:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-23 15:51:24,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-23 15:51:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-23 15:51:24,486 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-23 15:51:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-23 15:51:24,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-23 15:51:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-23 15:51:24,486 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-23 15:51:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_manageability [2022-11-23 15:51:24,487 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_manageability [2022-11-23 15:51:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-11-23 15:51:24,487 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-11-23 15:51:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-23 15:51:24,487 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-23 15:51:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_wol_exclusion [2022-11-23 15:51:24,487 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_wol_exclusion [2022-11-23 15:51:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-23 15:51:24,488 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-23 15:51:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-23 15:51:24,488 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-23 15:51:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-23 15:51:24,488 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-23 15:51:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-23 15:51:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:51:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-11-23 15:51:24,489 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-11-23 15:51:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_rx_ring [2022-11-23 15:51:24,489 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_rx_ring [2022-11-23 15:51:24,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-23 15:51:24,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-23 15:51:24,490 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-23 15:51:27,151 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:51:27,157 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:51:28,785 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 15:52:31,533 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:52:39,222 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:52:39,222 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-23 15:52:39,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:52:39 BoogieIcfgContainer [2022-11-23 15:52:39,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:52:39,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:52:39,239 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:52:39,244 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:52:39,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:51:10" (1/3) ... [2022-11-23 15:52:39,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79a69bd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:52:39, skipping insertion in model container [2022-11-23 15:52:39,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:21" (2/3) ... [2022-11-23 15:52:39,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79a69bd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:52:39, skipping insertion in model container [2022-11-23 15:52:39,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:52:39" (3/3) ... [2022-11-23 15:52:39,250 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-23 15:52:39,276 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:52:39,276 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 15:52:39,518 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:52:39,531 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;@6777e467, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:52:39,531 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 15:52:39,560 INFO L276 IsEmpty]: Start isEmpty. Operand has 6545 states, 4181 states have (on average 1.3360440086103802) internal successors, (5586), 4288 states have internal predecessors, (5586), 2122 states have call successors, (2122), 242 states have call predecessors, (2122), 241 states have return successors, (2118), 2105 states have call predecessors, (2118), 2118 states have call successors, (2118) [2022-11-23 15:52:39,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-23 15:52:39,572 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:52:39,573 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-23 15:52:39,574 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:52:39,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:52:39,581 INFO L85 PathProgramCache]: Analyzing trace with hash 591715963, now seen corresponding path program 1 times [2022-11-23 15:52:39,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:52:39,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277261655] [2022-11-23 15:52:39,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:52:39,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:52:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:52:43,247 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 15:52:43,248 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:52:43,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277261655] [2022-11-23 15:52:43,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277261655] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:52:43,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:52:43,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:52:43,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901959724] [2022-11-23 15:52:43,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:52:43,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:52:43,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:52:43,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:52:43,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:52:43,316 INFO L87 Difference]: Start difference. First operand has 6545 states, 4181 states have (on average 1.3360440086103802) internal successors, (5586), 4288 states have internal predecessors, (5586), 2122 states have call successors, (2122), 242 states have call predecessors, (2122), 241 states have return successors, (2118), 2105 states have call predecessors, (2118), 2118 states have call successors, (2118) Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-23 15:52:46,277 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 [] [2022-11-23 15:52:57,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:52:59,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:53:01,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:53:03,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:53:13,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:53:15,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:53:16,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:53:16,510 INFO L93 Difference]: Finished difference Result 17301 states and 25970 transitions. [2022-11-23 15:53:16,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:53:16,512 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 34 [2022-11-23 15:53:16,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:53:16,644 INFO L225 Difference]: With dead ends: 17301 [2022-11-23 15:53:16,644 INFO L226 Difference]: Without dead ends: 10728 [2022-11-23 15:53:16,877 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 [2022-11-23 15:53:16,880 INFO L413 NwaCegarLoop]: 10930 mSDtfsCounter, 6295 mSDsluCounter, 19963 mSDsCounter, 0 mSdLazyCounter, 2308 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6297 SdHoareTripleChecker+Valid, 30893 SdHoareTripleChecker+Invalid, 2315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2308 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:53:16,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6297 Valid, 30893 Invalid, 2315 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 2308 Invalid, 6 Unknown, 0 Unchecked, 32.2s Time] [2022-11-23 15:53:16,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10728 states. [2022-11-23 15:53:17,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10728 to 10720. [2022-11-23 15:53:17,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10720 states, 6817 states have (on average 1.3281502127035352) internal successors, (9054), 6976 states have internal predecessors, (9054), 3477 states have call successors, (3477), 425 states have call predecessors, (3477), 424 states have return successors, (3475), 3460 states have call predecessors, (3475), 3475 states have call successors, (3475) [2022-11-23 15:53:18,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10720 states to 10720 states and 16006 transitions. [2022-11-23 15:53:18,052 INFO L78 Accepts]: Start accepts. Automaton has 10720 states and 16006 transitions. Word has length 34 [2022-11-23 15:53:18,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:53:18,053 INFO L495 AbstractCegarLoop]: Abstraction has 10720 states and 16006 transitions. [2022-11-23 15:53:18,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-23 15:53:18,054 INFO L276 IsEmpty]: Start isEmpty. Operand 10720 states and 16006 transitions. [2022-11-23 15:53:18,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-23 15:53:18,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:53:18,062 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-23 15:53:18,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:53:18,063 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:53:18,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:53:18,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1115350739, now seen corresponding path program 1 times [2022-11-23 15:53:18,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:53:18,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952882102] [2022-11-23 15:53:18,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:53:18,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:53:18,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:53:20,903 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-11-23 15:53:20,903 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:53:20,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952882102] [2022-11-23 15:53:20,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952882102] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:53:20,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:53:20,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:53:20,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811472029] [2022-11-23 15:53:20,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:53:20,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:53:20,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:53:20,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:53:20,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:53:20,907 INFO L87 Difference]: Start difference. First operand 10720 states and 16006 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 15:53:23,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:53:35,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:53:37,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:53:39,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:53:42,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:53:50,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:53:53,158 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 [] [2022-11-23 15:53:53,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:53:53,830 INFO L93 Difference]: Finished difference Result 11048 states and 16537 transitions. [2022-11-23 15:53:53,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:53:53,831 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 85 [2022-11-23 15:53:53,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:53:53,914 INFO L225 Difference]: With dead ends: 11048 [2022-11-23 15:53:53,914 INFO L226 Difference]: Without dead ends: 11046 [2022-11-23 15:53:53,924 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 [2022-11-23 15:53:53,925 INFO L413 NwaCegarLoop]: 11004 mSDtfsCounter, 6596 mSDsluCounter, 19993 mSDsCounter, 0 mSdLazyCounter, 2379 mSolverCounterSat, 62 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6655 SdHoareTripleChecker+Valid, 30997 SdHoareTripleChecker+Invalid, 2447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2379 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:53:53,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6655 Valid, 30997 Invalid, 2447 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 2379 Invalid, 6 Unknown, 0 Unchecked, 32.3s Time] [2022-11-23 15:53:53,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11046 states. [2022-11-23 15:53:54,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11046 to 10720. [2022-11-23 15:53:54,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10720 states, 6817 states have (on average 1.3280035206102392) internal successors, (9053), 6976 states have internal predecessors, (9053), 3477 states have call successors, (3477), 425 states have call predecessors, (3477), 424 states have return successors, (3475), 3460 states have call predecessors, (3475), 3475 states have call successors, (3475) [2022-11-23 15:53:54,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10720 states to 10720 states and 16005 transitions. [2022-11-23 15:53:54,812 INFO L78 Accepts]: Start accepts. Automaton has 10720 states and 16005 transitions. Word has length 85 [2022-11-23 15:53:54,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:53:54,814 INFO L495 AbstractCegarLoop]: Abstraction has 10720 states and 16005 transitions. [2022-11-23 15:53:54,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 15:53:54,815 INFO L276 IsEmpty]: Start isEmpty. Operand 10720 states and 16005 transitions. [2022-11-23 15:53:54,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-23 15:53:54,841 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:53:54,841 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:53:54,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:53:54,842 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:53:54,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:53:54,843 INFO L85 PathProgramCache]: Analyzing trace with hash -199398796, now seen corresponding path program 1 times [2022-11-23 15:53:54,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:53:54,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704903940] [2022-11-23 15:53:54,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:53:54,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:53:55,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:53:58,053 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2022-11-23 15:53:58,054 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:53:58,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704903940] [2022-11-23 15:53:58,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704903940] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:53:58,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:53:58,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:53:58,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889162300] [2022-11-23 15:53:58,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:53:58,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:53:58,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:53:58,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:53:58,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:53:58,061 INFO L87 Difference]: Start difference. First operand 10720 states and 16005 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-23 15:54:01,150 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 [] [2022-11-23 15:54:10,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:54:12,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:54:21,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:54:28,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:54:29,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:54:29,571 INFO L93 Difference]: Finished difference Result 15873 states and 23732 transitions. [2022-11-23 15:54:29,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:54:29,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 190 [2022-11-23 15:54:29,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:54:29,699 INFO L225 Difference]: With dead ends: 15873 [2022-11-23 15:54:29,699 INFO L226 Difference]: Without dead ends: 15871 [2022-11-23 15:54:29,717 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 [2022-11-23 15:54:29,718 INFO L413 NwaCegarLoop]: 10806 mSDtfsCounter, 7285 mSDsluCounter, 19907 mSDsCounter, 0 mSdLazyCounter, 2343 mSolverCounterSat, 83 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7344 SdHoareTripleChecker+Valid, 30713 SdHoareTripleChecker+Invalid, 2430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 2343 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.9s IncrementalHoareTripleChecker+Time [2022-11-23 15:54:29,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7344 Valid, 30713 Invalid, 2430 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [83 Valid, 2343 Invalid, 4 Unknown, 0 Unchecked, 30.9s Time] [2022-11-23 15:54:29,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15871 states. [2022-11-23 15:54:30,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15871 to 15340. [2022-11-23 15:54:30,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15340 states, 9768 states have (on average 1.3287264537264538) internal successors, (12979), 9990 states have internal predecessors, (12979), 4954 states have call successors, (4954), 617 states have call predecessors, (4954), 616 states have return successors, (4952), 4932 states have call predecessors, (4952), 4952 states have call successors, (4952) [2022-11-23 15:54:30,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15340 states to 15340 states and 22885 transitions. [2022-11-23 15:54:30,892 INFO L78 Accepts]: Start accepts. Automaton has 15340 states and 22885 transitions. Word has length 190 [2022-11-23 15:54:30,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:54:30,896 INFO L495 AbstractCegarLoop]: Abstraction has 15340 states and 22885 transitions. [2022-11-23 15:54:30,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-23 15:54:30,896 INFO L276 IsEmpty]: Start isEmpty. Operand 15340 states and 22885 transitions. [2022-11-23 15:54:30,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-11-23 15:54:30,908 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:54:30,909 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 8, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-23 15:54:30,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:54:30,909 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:54:30,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:54:30,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1218610680, now seen corresponding path program 1 times [2022-11-23 15:54:30,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:54:30,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630903893] [2022-11-23 15:54:30,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:54:30,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:54:31,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:54:33,738 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2022-11-23 15:54:33,738 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:54:33,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630903893] [2022-11-23 15:54:33,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630903893] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:54:33,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:54:33,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:54:33,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194088939] [2022-11-23 15:54:33,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:54:33,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:54:33,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:54:33,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:54:33,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:54:33,742 INFO L87 Difference]: Start difference. First operand 15340 states and 22885 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-23 15:54:36,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:54:43,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:54:45,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:54:48,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:54:51,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:54:57,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:55:01,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:55:02,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:55:02,421 INFO L93 Difference]: Finished difference Result 15383 states and 22938 transitions. [2022-11-23 15:55:02,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:55:02,422 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 243 [2022-11-23 15:55:02,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:55:02,533 INFO L225 Difference]: With dead ends: 15383 [2022-11-23 15:55:02,533 INFO L226 Difference]: Without dead ends: 15351 [2022-11-23 15:55:02,549 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 [2022-11-23 15:55:02,550 INFO L413 NwaCegarLoop]: 10662 mSDtfsCounter, 6860 mSDsluCounter, 19683 mSDsCounter, 0 mSdLazyCounter, 2235 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6860 SdHoareTripleChecker+Valid, 30345 SdHoareTripleChecker+Invalid, 2239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2235 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:55:02,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6860 Valid, 30345 Invalid, 2239 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2235 Invalid, 4 Unknown, 0 Unchecked, 28.0s Time] [2022-11-23 15:55:02,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15351 states. [2022-11-23 15:55:03,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15351 to 15316. [2022-11-23 15:55:03,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15316 states, 9756 states have (on average 1.3287207872078721) internal successors, (12963), 9975 states have internal predecessors, (12963), 4942 states have call successors, (4942), 617 states have call predecessors, (4942), 616 states have return successors, (4940), 4922 states have call predecessors, (4940), 4940 states have call successors, (4940) [2022-11-23 15:55:03,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15316 states to 15316 states and 22845 transitions. [2022-11-23 15:55:03,589 INFO L78 Accepts]: Start accepts. Automaton has 15316 states and 22845 transitions. Word has length 243 [2022-11-23 15:55:03,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:55:03,594 INFO L495 AbstractCegarLoop]: Abstraction has 15316 states and 22845 transitions. [2022-11-23 15:55:03,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-23 15:55:03,594 INFO L276 IsEmpty]: Start isEmpty. Operand 15316 states and 22845 transitions. [2022-11-23 15:55:03,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2022-11-23 15:55:03,699 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:55:03,700 INFO L195 NwaCegarLoop]: trace histogram [14, 9, 9, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:55:03,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:55:03,700 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:55:03,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:55:03,701 INFO L85 PathProgramCache]: Analyzing trace with hash 2054432334, now seen corresponding path program 1 times [2022-11-23 15:55:03,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:55:03,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925349517] [2022-11-23 15:55:03,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:55:03,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:55:04,540 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:55:04,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [340675207] [2022-11-23 15:55:04,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:55:04,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:55:04,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:55:04,547 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:55:04,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 15:55:10,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:55:10,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 21686 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 15:55:11,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:55:11,135 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2022-11-23 15:55:11,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:55:11,138 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:55:11,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925349517] [2022-11-23 15:55:11,138 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:55:11,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340675207] [2022-11-23 15:55:11,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [340675207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:55:11,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:55:11,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:55:11,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617184100] [2022-11-23 15:55:11,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:55:11,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:55:11,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:55:11,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:55:11,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:55:11,142 INFO L87 Difference]: Start difference. First operand 15316 states and 22845 transitions. Second operand has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 3 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (92), 3 states have call predecessors, (92), 3 states have call successors, (92) [2022-11-23 15:55:14,023 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 [] [2022-11-23 15:55:21,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:55:24,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:55:26,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:55:30,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:55:31,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:55:36,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:55:38,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:55:40,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:55:42,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:55:42,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:55:42,770 INFO L93 Difference]: Finished difference Result 23164 states and 34738 transitions. [2022-11-23 15:55:42,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:55:42,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 3 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (92), 3 states have call predecessors, (92), 3 states have call successors, (92) Word has length 548 [2022-11-23 15:55:42,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:55:42,891 INFO L225 Difference]: With dead ends: 23164 [2022-11-23 15:55:42,892 INFO L226 Difference]: Without dead ends: 16652 [2022-11-23 15:55:42,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 546 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:55:42,957 INFO L413 NwaCegarLoop]: 10267 mSDtfsCounter, 1141 mSDsluCounter, 9303 mSDsCounter, 0 mSdLazyCounter, 1593 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1627 SdHoareTripleChecker+Valid, 19570 SdHoareTripleChecker+Invalid, 1599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1593 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:55:42,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1627 Valid, 19570 Invalid, 1599 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1593 Invalid, 5 Unknown, 0 Unchecked, 31.0s Time] [2022-11-23 15:55:42,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16652 states. [2022-11-23 15:55:44,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16652 to 15321. [2022-11-23 15:55:44,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15321 states, 9760 states have (on average 1.3286885245901638) internal successors, (12968), 9979 states have internal predecessors, (12968), 4943 states have call successors, (4943), 617 states have call predecessors, (4943), 616 states have return successors, (4941), 4923 states have call predecessors, (4941), 4941 states have call successors, (4941) [2022-11-23 15:55:44,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15321 states to 15321 states and 22852 transitions. [2022-11-23 15:55:44,353 INFO L78 Accepts]: Start accepts. Automaton has 15321 states and 22852 transitions. Word has length 548 [2022-11-23 15:55:44,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:55:44,354 INFO L495 AbstractCegarLoop]: Abstraction has 15321 states and 22852 transitions. [2022-11-23 15:55:44,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 3 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (92), 3 states have call predecessors, (92), 3 states have call successors, (92) [2022-11-23 15:55:44,355 INFO L276 IsEmpty]: Start isEmpty. Operand 15321 states and 22852 transitions. [2022-11-23 15:55:44,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2022-11-23 15:55:44,450 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:55:44,450 INFO L195 NwaCegarLoop]: trace histogram [17, 9, 9, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:55:44,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 15:55:44,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:55:44,667 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:55:44,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:55:44,669 INFO L85 PathProgramCache]: Analyzing trace with hash 487190232, now seen corresponding path program 1 times [2022-11-23 15:55:44,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:55:44,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910076423] [2022-11-23 15:55:44,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:55:44,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:55:45,436 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:55:45,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [741812684] [2022-11-23 15:55:45,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:55:45,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:55:45,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:55:45,439 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:55:45,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 15:55:52,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:55:52,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 22162 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:55:52,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:55:52,980 INFO L134 CoverageAnalysis]: Checked inductivity of 571 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked. [2022-11-23 15:55:52,981 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:55:52,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:55:52,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910076423] [2022-11-23 15:55:52,981 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:55:52,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741812684] [2022-11-23 15:55:52,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741812684] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:55:52,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:55:52,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:55:52,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468229016] [2022-11-23 15:55:52,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:55:52,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:55:52,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:55:52,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:55:52,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:55:52,985 INFO L87 Difference]: Start difference. First operand 15321 states and 22852 transitions. Second operand has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 2 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) [2022-11-23 15:55:55,849 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 [] [2022-11-23 15:56:04,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:56:06,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:56:14,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:56:17,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:56:20,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:56:20,269 INFO L93 Difference]: Finished difference Result 27282 states and 40796 transitions. [2022-11-23 15:56:20,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:56:20,270 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 2 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) Word has length 592 [2022-11-23 15:56:20,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:56:20,369 INFO L225 Difference]: With dead ends: 27282 [2022-11-23 15:56:20,369 INFO L226 Difference]: Without dead ends: 16169 [2022-11-23 15:56:20,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 593 GetRequests, 590 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:56:20,426 INFO L413 NwaCegarLoop]: 9507 mSDtfsCounter, 470 mSDsluCounter, 18415 mSDsCounter, 0 mSdLazyCounter, 2328 mSolverCounterSat, 113 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 27922 SdHoareTripleChecker+Invalid, 2445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 2328 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:56:20,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 27922 Invalid, 2445 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [113 Valid, 2328 Invalid, 4 Unknown, 0 Unchecked, 26.5s Time] [2022-11-23 15:56:20,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16169 states. [2022-11-23 15:56:21,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16169 to 15325. [2022-11-23 15:56:21,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15325 states, 9764 states have (on average 1.328553871364195) internal successors, (12972), 9983 states have internal predecessors, (12972), 4943 states have call successors, (4943), 617 states have call predecessors, (4943), 616 states have return successors, (4941), 4923 states have call predecessors, (4941), 4941 states have call successors, (4941) [2022-11-23 15:56:21,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15325 states to 15325 states and 22856 transitions. [2022-11-23 15:56:21,751 INFO L78 Accepts]: Start accepts. Automaton has 15325 states and 22856 transitions. Word has length 592 [2022-11-23 15:56:21,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:56:21,752 INFO L495 AbstractCegarLoop]: Abstraction has 15325 states and 22856 transitions. [2022-11-23 15:56:21,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 2 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) [2022-11-23 15:56:21,752 INFO L276 IsEmpty]: Start isEmpty. Operand 15325 states and 22856 transitions. [2022-11-23 15:56:21,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 611 [2022-11-23 15:56:21,814 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:56:21,814 INFO L195 NwaCegarLoop]: trace histogram [18, 9, 9, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:56:21,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 15:56:22,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:56:22,028 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:56:22,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:56:22,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1282564407, now seen corresponding path program 1 times [2022-11-23 15:56:22,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:56:22,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282945190] [2022-11-23 15:56:22,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:56:22,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:56:23,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:56:23,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:56:23,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282945190] [2022-11-23 15:56:23,411 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-23 15:56:23,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681801654] [2022-11-23 15:56:23,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:56:23,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:56:23,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:56:23,413 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:56:23,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 15:56:30,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:56:30,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 22421 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:56:30,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:56:30,935 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 571 trivial. 0 not checked. [2022-11-23 15:56:30,935 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:56:30,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681801654] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:56:30,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:56:30,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:56:30,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875504310] [2022-11-23 15:56:30,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:56:30,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:56:30,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:56:30,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:56:30,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:56:30,940 INFO L87 Difference]: Start difference. First operand 15325 states and 22856 transitions. Second operand has 4 states, 4 states have (on average 76.25) internal successors, (305), 4 states have internal predecessors, (305), 2 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2022-11-23 15:56:33,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:56:42,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:56:44,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:56:47,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:56:56,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:56:59,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:57:00,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:57:00,799 INFO L93 Difference]: Finished difference Result 26786 states and 40025 transitions. [2022-11-23 15:57:00,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:57:00,800 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 76.25) internal successors, (305), 4 states have internal predecessors, (305), 2 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) Word has length 610 [2022-11-23 15:57:00,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:57:00,900 INFO L225 Difference]: With dead ends: 26786 [2022-11-23 15:57:00,900 INFO L226 Difference]: Without dead ends: 15669 [2022-11-23 15:57:00,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 611 GetRequests, 608 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:57:00,962 INFO L413 NwaCegarLoop]: 9301 mSDtfsCounter, 343 mSDsluCounter, 18207 mSDsCounter, 0 mSdLazyCounter, 2254 mSolverCounterSat, 123 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 27508 SdHoareTripleChecker+Invalid, 2381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 2254 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:57:00,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 27508 Invalid, 2381 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [123 Valid, 2254 Invalid, 4 Unknown, 0 Unchecked, 29.2s Time] [2022-11-23 15:57:00,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15669 states. [2022-11-23 15:57:02,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15669 to 15329. [2022-11-23 15:57:02,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15329 states, 9768 states have (on average 1.3284193284193284) internal successors, (12976), 9987 states have internal predecessors, (12976), 4943 states have call successors, (4943), 617 states have call predecessors, (4943), 616 states have return successors, (4941), 4923 states have call predecessors, (4941), 4941 states have call successors, (4941) [2022-11-23 15:57:02,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15329 states to 15329 states and 22860 transitions. [2022-11-23 15:57:02,185 INFO L78 Accepts]: Start accepts. Automaton has 15329 states and 22860 transitions. Word has length 610 [2022-11-23 15:57:02,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:57:02,185 INFO L495 AbstractCegarLoop]: Abstraction has 15329 states and 22860 transitions. [2022-11-23 15:57:02,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.25) internal successors, (305), 4 states have internal predecessors, (305), 2 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2022-11-23 15:57:02,186 INFO L276 IsEmpty]: Start isEmpty. Operand 15329 states and 22860 transitions. [2022-11-23 15:57:02,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 614 [2022-11-23 15:57:02,252 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:57:02,253 INFO L195 NwaCegarLoop]: trace histogram [18, 9, 9, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:57:02,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 15:57:02,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-23 15:57:02,479 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:57:02,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:57:02,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1433255816, now seen corresponding path program 1 times [2022-11-23 15:57:02,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:57:02,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013202072] [2022-11-23 15:57:02,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:57:02,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:57:03,647 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:57:03,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1309039857] [2022-11-23 15:57:03,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:57:03,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:57:03,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:57:03,650 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:57:03,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 15:57:10,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:57:11,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 22467 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:57:11,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:57:11,191 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 541 trivial. 0 not checked. [2022-11-23 15:57:11,191 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:57:11,192 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:57:11,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013202072] [2022-11-23 15:57:11,192 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:57:11,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309039857] [2022-11-23 15:57:11,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309039857] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:57:11,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:57:11,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:57:11,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526681904] [2022-11-23 15:57:11,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:57:11,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:57:11,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:57:11,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:57:11,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:57:11,196 INFO L87 Difference]: Start difference. First operand 15329 states and 22860 transitions. Second operand has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 2 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2022-11-23 15:57:14,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:57:18,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:57:24,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:57:26,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:57:34,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:57:37,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:57:39,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:57:41,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:57:42,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:57:42,450 INFO L93 Difference]: Finished difference Result 27278 states and 40783 transitions. [2022-11-23 15:57:42,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:57:42,451 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 2 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) Word has length 613 [2022-11-23 15:57:42,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:57:42,524 INFO L225 Difference]: With dead ends: 27278 [2022-11-23 15:57:42,524 INFO L226 Difference]: Without dead ends: 16157 [2022-11-23 15:57:42,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 614 GetRequests, 611 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:57:42,581 INFO L413 NwaCegarLoop]: 9505 mSDtfsCounter, 353 mSDsluCounter, 18555 mSDsCounter, 0 mSdLazyCounter, 2351 mSolverCounterSat, 109 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 28060 SdHoareTripleChecker+Invalid, 2465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 2351 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:57:42,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 28060 Invalid, 2465 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [109 Valid, 2351 Invalid, 5 Unknown, 0 Unchecked, 30.5s Time] [2022-11-23 15:57:42,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16157 states. [2022-11-23 15:57:43,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16157 to 15333. [2022-11-23 15:57:43,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15333 states, 9772 states have (on average 1.3282848956201392) internal successors, (12980), 9991 states have internal predecessors, (12980), 4943 states have call successors, (4943), 617 states have call predecessors, (4943), 616 states have return successors, (4941), 4923 states have call predecessors, (4941), 4941 states have call successors, (4941) [2022-11-23 15:57:43,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15333 states to 15333 states and 22864 transitions. [2022-11-23 15:57:43,615 INFO L78 Accepts]: Start accepts. Automaton has 15333 states and 22864 transitions. Word has length 613 [2022-11-23 15:57:43,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:57:43,616 INFO L495 AbstractCegarLoop]: Abstraction has 15333 states and 22864 transitions. [2022-11-23 15:57:43,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 2 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2022-11-23 15:57:43,617 INFO L276 IsEmpty]: Start isEmpty. Operand 15333 states and 22864 transitions. [2022-11-23 15:57:43,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 633 [2022-11-23 15:57:43,681 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:57:43,682 INFO L195 NwaCegarLoop]: trace histogram [18, 9, 9, 7, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:57:43,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 15:57:43,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:57:43,895 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:57:43,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:57:43,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1563470169, now seen corresponding path program 1 times [2022-11-23 15:57:43,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:57:43,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024411492] [2022-11-23 15:57:43,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:57:43,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:57:44,919 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:57:44,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1305322539] [2022-11-23 15:57:44,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:57:44,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:57:44,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:57:44,920 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:57:44,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 15:57:52,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:57:52,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 22580 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:57:52,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:57:52,982 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2022-11-23 15:57:52,982 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:57:52,983 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:57:52,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024411492] [2022-11-23 15:57:52,983 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:57:52,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305322539] [2022-11-23 15:57:52,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305322539] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:57:52,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:57:52,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:57:52,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108557570] [2022-11-23 15:57:52,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:57:52,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:57:52,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:57:52,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:57:52,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:57:52,987 INFO L87 Difference]: Start difference. First operand 15333 states and 22864 transitions. Second operand has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 2 states have call successors, (103), 2 states have call predecessors, (103), 2 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) [2022-11-23 15:57:55,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:58:07,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:58:09,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:58:18,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:58:20,987 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 [] [2022-11-23 15:58:21,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:58:21,879 INFO L93 Difference]: Finished difference Result 26802 states and 40041 transitions. [2022-11-23 15:58:21,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:58:21,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 2 states have call successors, (103), 2 states have call predecessors, (103), 2 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) Word has length 632 [2022-11-23 15:58:21,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:58:21,932 INFO L225 Difference]: With dead ends: 26802 [2022-11-23 15:58:21,933 INFO L226 Difference]: Without dead ends: 15677 [2022-11-23 15:58:21,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 633 GetRequests, 630 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:58:21,968 INFO L413 NwaCegarLoop]: 9306 mSDtfsCounter, 343 mSDsluCounter, 18206 mSDsCounter, 0 mSdLazyCounter, 2259 mSolverCounterSat, 123 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 27512 SdHoareTripleChecker+Invalid, 2386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 2259 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:58:21,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 27512 Invalid, 2386 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [123 Valid, 2259 Invalid, 4 Unknown, 0 Unchecked, 28.2s Time] [2022-11-23 15:58:21,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15677 states. [2022-11-23 15:58:22,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15677 to 15337. [2022-11-23 15:58:22,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15337 states, 9776 states have (on average 1.3281505728314238) internal successors, (12984), 9995 states have internal predecessors, (12984), 4943 states have call successors, (4943), 617 states have call predecessors, (4943), 616 states have return successors, (4941), 4923 states have call predecessors, (4941), 4941 states have call successors, (4941) [2022-11-23 15:58:22,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15337 states to 15337 states and 22868 transitions. [2022-11-23 15:58:22,962 INFO L78 Accepts]: Start accepts. Automaton has 15337 states and 22868 transitions. Word has length 632 [2022-11-23 15:58:22,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:58:22,962 INFO L495 AbstractCegarLoop]: Abstraction has 15337 states and 22868 transitions. [2022-11-23 15:58:22,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 2 states have call successors, (103), 2 states have call predecessors, (103), 2 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) [2022-11-23 15:58:22,963 INFO L276 IsEmpty]: Start isEmpty. Operand 15337 states and 22868 transitions. [2022-11-23 15:58:23,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 640 [2022-11-23 15:58:23,013 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:58:23,013 INFO L195 NwaCegarLoop]: trace histogram [18, 9, 9, 7, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:58:23,074 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-23 15:58:23,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:58:23,215 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:58:23,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:58:23,215 INFO L85 PathProgramCache]: Analyzing trace with hash -205784629, now seen corresponding path program 1 times [2022-11-23 15:58:23,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:58:23,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677550703] [2022-11-23 15:58:23,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:58:23,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:58:24,270 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:58:24,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1124267191] [2022-11-23 15:58:24,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:58:24,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:58:24,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:58:24,272 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:58:24,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753e8a1c-e709-4ca6-9b83-cfef3e09e48a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-23 15:58:32,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:58:32,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 22648 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:58:32,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:58:32,861 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 138 proven. 5 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2022-11-23 15:58:32,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:58:33,580 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2022-11-23 15:58:33,580 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:58:33,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677550703] [2022-11-23 15:58:33,580 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:58:33,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124267191] [2022-11-23 15:58:33,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124267191] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:58:33,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1133847822] [2022-11-23 15:58:33,635 INFO L159 IcfgInterpreter]: Started Sifa with 464 locations of interest [2022-11-23 15:58:33,636 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:58:33,642 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:58:33,648 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:58:33,649 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs