./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF --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 af0382669342cd1b96ae06a23957b47efa45a6d5fd31066fb67e67230764554c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:21:01,504 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:21:01,506 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:21:01,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:21:01,562 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:21:01,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:21:01,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:21:01,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:21:01,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:21:01,570 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:21:01,571 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:21:01,573 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:21:01,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:21:01,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:21:01,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:21:01,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:21:01,579 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:21:01,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:21:01,582 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:21:01,584 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:21:01,586 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:21:01,590 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:21:01,591 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:21:01,592 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:21:01,598 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:21:01,602 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:21:01,603 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:21:01,604 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:21:01,608 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:21:01,609 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:21:01,609 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:21:01,610 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:21:01,611 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:21:01,612 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:21:01,613 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:21:01,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:21:01,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:21:01,614 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:21:01,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:21:01,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:21:01,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:21:01,616 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 23:21:01,649 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:21:01,650 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:21:01,651 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:21:01,652 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:21:01,652 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:21:01,652 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:21:01,653 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:21:01,653 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:21:01,653 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:21:01,653 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:21:01,654 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:21:01,655 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:21:01,655 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:21:01,655 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:21:01,655 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:21:01,655 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:21:01,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:21:01,656 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:21:01,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:21:01,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:21:01,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:21:01,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:21:01,657 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:21:01,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:21:01,658 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:21:01,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:21:01,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:21:01,659 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:21:01,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:21:01,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:21:01,661 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:21:01,661 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:21:01,661 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:21:01,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:21:01,662 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:21:01,662 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:21:01,662 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:21:01,662 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af0382669342cd1b96ae06a23957b47efa45a6d5fd31066fb67e67230764554c [2021-11-12 23:21:01,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:21:01,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:21:01,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:21:01,933 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:21:01,934 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:21:01,935 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i [2021-11-12 23:21:02,020 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/data/f769fff11/b18b4408acbe43829da36e6e87d036ae/FLAG6bee7ed5a [2021-11-12 23:21:03,075 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:21:03,076 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i [2021-11-12 23:21:03,149 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/data/f769fff11/b18b4408acbe43829da36e6e87d036ae/FLAG6bee7ed5a [2021-11-12 23:21:03,328 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/data/f769fff11/b18b4408acbe43829da36e6e87d036ae [2021-11-12 23:21:03,333 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:21:03,336 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:21:03,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:21:03,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:21:03,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:21:03,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:21:03" (1/1) ... [2021-11-12 23:21:03,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a6cdcb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:21:03, skipping insertion in model container [2021-11-12 23:21:03,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:21:03" (1/1) ... [2021-11-12 23:21:03,354 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:21:03,554 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:21:06,339 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:21:06,343 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:21:06,434 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:21:06,436 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:21:06,445 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:21:06,446 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:21:06,584 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:21:06,708 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:21:06,709 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:21:08,534 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:21:09,694 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:21:09,696 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:21:09,869 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:21:09,939 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:21:09,940 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:21:09,975 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:21:09,976 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:21:09,991 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:21:10,002 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:21:10,021 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:21:10,442 WARN L228 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_e53c45cd-7238-43a9-a837-aaabb7899ea3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[582586,582599] [2021-11-12 23:21:10,445 WARN L228 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_e53c45cd-7238-43a9-a837-aaabb7899ea3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[582733,582746] [2021-11-12 23:21:10,445 WARN L228 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_e53c45cd-7238-43a9-a837-aaabb7899ea3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[582872,582885] [2021-11-12 23:21:10,446 WARN L228 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_e53c45cd-7238-43a9-a837-aaabb7899ea3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[583030,583043] [2021-11-12 23:21:10,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:21:10,581 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 23:21:10,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1c0b2350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:21:10, skipping insertion in model container [2021-11-12 23:21:10,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:21:10,583 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 23:21:10,585 INFO L158 Benchmark]: Toolchain (without parser) took 7248.68ms. Allocated memory was 113.2MB in the beginning and 199.2MB in the end (delta: 86.0MB). Free memory was 78.0MB in the beginning and 105.2MB in the end (delta: -27.1MB). Peak memory consumption was 79.9MB. Max. memory is 16.1GB. [2021-11-12 23:21:10,586 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 83.9MB. Free memory is still 43.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:21:10,587 INFO L158 Benchmark]: CACSL2BoogieTranslator took 7244.72ms. Allocated memory was 113.2MB in the beginning and 199.2MB in the end (delta: 86.0MB). Free memory was 78.0MB in the beginning and 105.2MB in the end (delta: -27.1MB). Peak memory consumption was 79.9MB. Max. memory is 16.1GB. [2021-11-12 23:21:10,589 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 83.9MB. Free memory is still 43.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 7244.72ms. Allocated memory was 113.2MB in the beginning and 199.2MB in the end (delta: 86.0MB). Free memory was 78.0MB in the beginning and 105.2MB in the end (delta: -27.1MB). Peak memory consumption was 79.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7279]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF --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 af0382669342cd1b96ae06a23957b47efa45a6d5fd31066fb67e67230764554c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:21:12,780 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:21:12,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:21:12,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:21:12,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:21:12,838 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:21:12,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:21:12,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:21:12,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:21:12,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:21:12,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:21:12,858 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:21:12,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:21:12,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:21:12,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:21:12,866 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:21:12,867 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:21:12,868 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:21:12,875 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:21:12,877 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:21:12,879 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:21:12,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:21:12,885 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:21:12,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:21:12,896 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:21:12,896 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:21:12,896 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:21:12,897 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:21:12,898 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:21:12,899 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:21:12,899 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:21:12,900 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:21:12,901 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:21:12,902 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:21:12,903 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:21:12,903 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:21:12,904 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:21:12,915 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:21:12,916 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:21:12,917 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:21:12,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:21:12,923 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 23:21:12,967 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:21:12,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:21:12,969 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:21:12,969 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:21:12,969 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:21:12,970 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:21:12,970 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:21:12,970 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:21:12,970 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:21:12,970 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:21:12,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:21:12,973 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:21:12,973 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:21:12,973 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:21:12,973 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:21:12,974 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:21:12,974 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:21:12,974 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:21:12,974 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:21:12,974 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:21:12,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:21:12,975 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:21:12,975 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:21:12,975 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:21:12,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:21:12,976 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:21:12,976 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:21:12,976 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:21:12,976 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:21:12,977 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:21:12,977 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:21:12,977 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:21:12,977 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:21:12,978 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af0382669342cd1b96ae06a23957b47efa45a6d5fd31066fb67e67230764554c [2021-11-12 23:21:13,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:21:13,386 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:21:13,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:21:13,390 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:21:13,390 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:21:13,392 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i [2021-11-12 23:21:13,463 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/data/7952b9069/cebd1629083e49758f35db5d3696f8a5/FLAG0de045e3b [2021-11-12 23:21:14,703 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:21:14,704 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i [2021-11-12 23:21:14,794 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/data/7952b9069/cebd1629083e49758f35db5d3696f8a5/FLAG0de045e3b [2021-11-12 23:21:14,855 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/data/7952b9069/cebd1629083e49758f35db5d3696f8a5 [2021-11-12 23:21:14,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:21:14,859 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:21:14,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:21:14,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:21:14,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:21:14,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:21:14" (1/1) ... [2021-11-12 23:21:14,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ec0fa2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:21:14, skipping insertion in model container [2021-11-12 23:21:14,866 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:21:14" (1/1) ... [2021-11-12 23:21:14,873 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:21:15,104 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:21:21,101 WARN L228 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_e53c45cd-7238-43a9-a837-aaabb7899ea3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[582586,582599] [2021-11-12 23:21:21,104 WARN L228 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_e53c45cd-7238-43a9-a837-aaabb7899ea3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[582733,582746] [2021-11-12 23:21:21,104 WARN L228 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_e53c45cd-7238-43a9-a837-aaabb7899ea3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[582872,582885] [2021-11-12 23:21:21,105 WARN L228 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_e53c45cd-7238-43a9-a837-aaabb7899ea3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[583030,583043] [2021-11-12 23:21:21,145 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:21:21,217 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 23:21:21,389 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:21:21,993 WARN L228 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_e53c45cd-7238-43a9-a837-aaabb7899ea3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[582586,582599] [2021-11-12 23:21:21,994 WARN L228 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_e53c45cd-7238-43a9-a837-aaabb7899ea3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[582733,582746] [2021-11-12 23:21:21,994 WARN L228 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_e53c45cd-7238-43a9-a837-aaabb7899ea3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[582872,582885] [2021-11-12 23:21:21,995 WARN L228 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_e53c45cd-7238-43a9-a837-aaabb7899ea3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[583030,583043] [2021-11-12 23:21:22,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:21:22,092 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:21:22,923 WARN L228 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_e53c45cd-7238-43a9-a837-aaabb7899ea3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[582586,582599] [2021-11-12 23:21:22,924 WARN L228 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_e53c45cd-7238-43a9-a837-aaabb7899ea3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[582733,582746] [2021-11-12 23:21:22,926 WARN L228 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_e53c45cd-7238-43a9-a837-aaabb7899ea3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[582872,582885] [2021-11-12 23:21:22,932 WARN L228 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_e53c45cd-7238-43a9-a837-aaabb7899ea3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[583030,583043] [2021-11-12 23:21:22,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:21:23,389 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:21:23,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:21:23 WrapperNode [2021-11-12 23:21:23,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:21:23,395 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:21:23,395 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:21:23,396 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:21:23,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:21:23" (1/1) ... [2021-11-12 23:21:23,592 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:21:23" (1/1) ... [2021-11-12 23:21:24,068 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:21:24,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:21:24,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:21:24,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:21:24,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:21:23" (1/1) ... [2021-11-12 23:21:24,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:21:23" (1/1) ... [2021-11-12 23:21:24,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:21:23" (1/1) ... [2021-11-12 23:21:24,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:21:23" (1/1) ... [2021-11-12 23:21:24,408 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:21:23" (1/1) ... [2021-11-12 23:21:24,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:21:23" (1/1) ... [2021-11-12 23:21:24,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:21:23" (1/1) ... [2021-11-12 23:21:24,623 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:21:24,625 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:21:24,625 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:21:24,625 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:21:24,626 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:21:23" (1/1) ... [2021-11-12 23:21:24,633 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:21:24,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:21:24,659 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:21:24,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:21:24,705 INFO L130 BoogieDeclarations]: Found specification of procedure t4vf_sge_intr_msix [2021-11-12 23:21:24,706 INFO L138 BoogieDeclarations]: Found implementation of procedure t4vf_sge_intr_msix [2021-11-12 23:21:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure t4vf_set_params [2021-11-12 23:21:24,706 INFO L138 BoogieDeclarations]: Found implementation of procedure t4vf_set_params [2021-11-12 23:21:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-12 23:21:24,706 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-12 23:21:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-12 23:21:24,707 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-12 23:21:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-12 23:21:24,707 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-12 23:21:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure cxgb4vf_get_regs_len [2021-11-12 23:21:24,707 INFO L138 BoogieDeclarations]: Found implementation of procedure cxgb4vf_get_regs_len [2021-11-12 23:21:24,708 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-11-12 23:21:24,708 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-11-12 23:21:24,708 INFO L130 BoogieDeclarations]: Found specification of procedure cxgb4vf_open [2021-11-12 23:21:24,708 INFO L138 BoogieDeclarations]: Found implementation of procedure cxgb4vf_open [2021-11-12 23:21:24,708 INFO L130 BoogieDeclarations]: Found specification of procedure seq_putc [2021-11-12 23:21:24,708 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_putc [2021-11-12 23:21:24,709 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-12 23:21:24,709 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-12 23:21:24,709 INFO L130 BoogieDeclarations]: Found specification of procedure refill_fl [2021-11-12 23:21:24,709 INFO L138 BoogieDeclarations]: Found implementation of procedure refill_fl [2021-11-12 23:21:24,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 23:21:24,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 23:21:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure free_rx_bufs [2021-11-12 23:21:24,710 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rx_bufs [2021-11-12 23:21:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-12 23:21:24,710 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-12 23:21:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-12 23:21:24,711 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-12 23:21:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-12 23:21:24,711 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-12 23:21:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-12 23:21:24,711 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-12 23:21:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-12 23:21:24,712 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-12 23:21:24,712 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_debugfs [2021-11-12 23:21:24,712 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_debugfs [2021-11-12 23:21:24,712 INFO L130 BoogieDeclarations]: Found specification of procedure t4vf_query_params [2021-11-12 23:21:24,712 INFO L138 BoogieDeclarations]: Found implementation of procedure t4vf_query_params [2021-11-12 23:21:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-12 23:21:24,713 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-12 23:21:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-12 23:21:24,713 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-12 23:21:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_sw_desc [2021-11-12 23:21:24,713 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_sw_desc [2021-11-12 23:21:24,714 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-12 23:21:24,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-12 23:21:24,714 INFO L130 BoogieDeclarations]: Found specification of procedure poison_buf [2021-11-12 23:21:24,714 INFO L138 BoogieDeclarations]: Found implementation of procedure poison_buf [2021-11-12 23:21:24,714 INFO L130 BoogieDeclarations]: Found specification of procedure is_t4 [2021-11-12 23:21:24,715 INFO L138 BoogieDeclarations]: Found implementation of procedure is_t4 [2021-11-12 23:21:24,715 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-12 23:21:24,715 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-12 23:21:24,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-12 23:21:24,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-12 23:21:24,715 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-12 23:21:24,716 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-12 23:21:24,716 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-12 23:21:24,716 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-12 23:21:24,716 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-12 23:21:24,716 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-12 23:21:24,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-12 23:21:24,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-12 23:21:24,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:21:24,717 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-12 23:21:24,717 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-12 23:21:24,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-12 23:21:24,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:21:24,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 23:21:24,718 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2021-11-12 23:21:24,718 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2021-11-12 23:21:24,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 23:21:24,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-12 23:21:24,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-12 23:21:24,719 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2021-11-12 23:21:24,719 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2021-11-12 23:21:24,719 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-12 23:21:24,719 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-12 23:21:24,719 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-12 23:21:24,720 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-12 23:21:24,720 INFO L130 BoogieDeclarations]: Found specification of procedure sge_qstats_entries [2021-11-12 23:21:24,720 INFO L138 BoogieDeclarations]: Found implementation of procedure sge_qstats_entries [2021-11-12 23:21:24,720 INFO L130 BoogieDeclarations]: Found specification of procedure fl_cap [2021-11-12 23:21:24,720 INFO L138 BoogieDeclarations]: Found implementation of procedure fl_cap [2021-11-12 23:21:24,720 INFO L130 BoogieDeclarations]: Found specification of procedure is_new_response [2021-11-12 23:21:24,721 INFO L138 BoogieDeclarations]: Found implementation of procedure is_new_response [2021-11-12 23:21:24,721 INFO L130 BoogieDeclarations]: Found specification of procedure __napi_schedule [2021-11-12 23:21:24,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __napi_schedule [2021-11-12 23:21:24,721 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-12 23:21:24,721 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-12 23:21:24,722 INFO L130 BoogieDeclarations]: Found specification of procedure qenable [2021-11-12 23:21:24,722 INFO L138 BoogieDeclarations]: Found implementation of procedure qenable [2021-11-12 23:21:24,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-12 23:21:24,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-12 23:21:24,722 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-12 23:21:24,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-12 23:21:24,723 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2021-11-12 23:21:24,723 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2021-11-12 23:21:24,723 INFO L130 BoogieDeclarations]: Found specification of procedure is_10g_port [2021-11-12 23:21:24,723 INFO L138 BoogieDeclarations]: Found implementation of procedure is_10g_port [2021-11-12 23:21:24,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-12 23:21:24,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-12 23:21:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure seq_open [2021-11-12 23:21:24,724 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_open [2021-11-12 23:21:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header_len [2021-11-12 23:21:24,724 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header_len [2021-11-12 23:21:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-12 23:21:24,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-12 23:21:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure t4vf_get_port_stats [2021-11-12 23:21:24,725 INFO L138 BoogieDeclarations]: Found implementation of procedure t4vf_get_port_stats [2021-11-12 23:21:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_ring [2021-11-12 23:21:24,725 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_ring [2021-11-12 23:21:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-12 23:21:24,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-12 23:21:24,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-12 23:21:24,726 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-12 23:21:24,726 INFO L130 BoogieDeclarations]: Found specification of procedure t4vf_alloc_mac_filt [2021-11-12 23:21:24,726 INFO L138 BoogieDeclarations]: Found implementation of procedure t4vf_alloc_mac_filt [2021-11-12 23:21:24,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-12 23:21:24,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-12 23:21:24,727 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-12 23:21:24,727 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-12 23:21:24,727 INFO L130 BoogieDeclarations]: Found specification of procedure free_tx_desc [2021-11-12 23:21:24,727 INFO L138 BoogieDeclarations]: Found implementation of procedure free_tx_desc [2021-11-12 23:21:24,727 INFO L130 BoogieDeclarations]: Found specification of procedure t4vf_wr_mbox_core [2021-11-12 23:21:24,728 INFO L138 BoogieDeclarations]: Found implementation of procedure t4vf_wr_mbox_core [2021-11-12 23:21:24,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-12 23:21:24,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-12 23:21:24,728 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2021-11-12 23:21:24,728 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2021-11-12 23:21:24,728 INFO L130 BoogieDeclarations]: Found specification of procedure netdev2adap [2021-11-12 23:21:24,729 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev2adap [2021-11-12 23:21:24,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-12 23:21:24,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-12 23:21:24,729 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-12 23:21:24,729 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-12 23:21:24,729 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2021-11-12 23:21:24,730 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2021-11-12 23:21:24,730 INFO L130 BoogieDeclarations]: Found specification of procedure t4vf_set_rxmode [2021-11-12 23:21:24,730 INFO L138 BoogieDeclarations]: Found implementation of procedure t4vf_set_rxmode [2021-11-12 23:21:24,730 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-12 23:21:24,730 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-12 23:21:24,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_cxgb4vf_module_exit_22_2 [2021-11-12 23:21:24,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_cxgb4vf_module_exit_22_2 [2021-11-12 23:21:24,731 INFO L130 BoogieDeclarations]: Found specification of procedure core_ticks_to_us [2021-11-12 23:21:24,731 INFO L138 BoogieDeclarations]: Found implementation of procedure core_ticks_to_us [2021-11-12 23:21:24,731 INFO L130 BoogieDeclarations]: Found specification of procedure init_rspq [2021-11-12 23:21:24,731 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rspq [2021-11-12 23:21:24,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 23:21:24,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-12 23:21:24,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-12 23:21:24,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-12 23:21:24,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-12 23:21:24,732 INFO L130 BoogieDeclarations]: Found specification of procedure adap2pinfo [2021-11-12 23:21:24,732 INFO L138 BoogieDeclarations]: Found implementation of procedure adap2pinfo [2021-11-12 23:21:24,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-12 23:21:24,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-12 23:21:24,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-12 23:21:24,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-12 23:21:24,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-12 23:21:24,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-12 23:21:24,734 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2021-11-12 23:21:24,734 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2021-11-12 23:21:24,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-12 23:21:24,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-12 23:21:24,734 INFO L130 BoogieDeclarations]: Found specification of procedure cxgb4vf_stop [2021-11-12 23:21:24,734 INFO L138 BoogieDeclarations]: Found implementation of procedure cxgb4vf_stop [2021-11-12 23:21:24,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 23:21:24,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_seq_open [2021-11-12 23:21:24,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_seq_open [2021-11-12 23:21:24,735 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-12 23:21:24,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-12 23:21:24,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-12 23:21:24,736 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 23:21:24,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 23:21:24,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-12 23:21:24,736 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-12 23:21:24,736 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-12 23:21:24,736 INFO L130 BoogieDeclarations]: Found specification of procedure t4vf_change_mac [2021-11-12 23:21:24,737 INFO L138 BoogieDeclarations]: Found implementation of procedure t4vf_change_mac [2021-11-12 23:21:24,737 INFO L130 BoogieDeclarations]: Found specification of procedure fl_starving [2021-11-12 23:21:24,737 INFO L138 BoogieDeclarations]: Found implementation of procedure fl_starving [2021-11-12 23:21:24,737 INFO L130 BoogieDeclarations]: Found specification of procedure adapter_down [2021-11-12 23:21:24,737 INFO L138 BoogieDeclarations]: Found implementation of procedure adapter_down [2021-11-12 23:21:24,737 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-12 23:21:24,738 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-12 23:21:24,738 INFO L130 BoogieDeclarations]: Found specification of procedure netdev2pinfo [2021-11-12 23:21:24,738 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev2pinfo [2021-11-12 23:21:24,738 INFO L130 BoogieDeclarations]: Found specification of procedure t4vf_free_vi [2021-11-12 23:21:24,738 INFO L138 BoogieDeclarations]: Found implementation of procedure t4vf_free_vi [2021-11-12 23:21:24,738 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-12 23:21:24,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-12 23:21:24,739 INFO L130 BoogieDeclarations]: Found specification of procedure t4vf_free_sge_resources [2021-11-12 23:21:24,739 INFO L138 BoogieDeclarations]: Found implementation of procedure t4vf_free_sge_resources [2021-11-12 23:21:24,739 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-12 23:21:24,739 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-12 23:21:24,739 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-12 23:21:24,739 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-12 23:21:24,740 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-12 23:21:24,740 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-12 23:21:24,740 INFO L130 BoogieDeclarations]: Found specification of procedure t4_read_reg [2021-11-12 23:21:24,740 INFO L138 BoogieDeclarations]: Found implementation of procedure t4_read_reg [2021-11-12 23:21:24,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-12 23:21:24,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-12 23:21:24,741 INFO L130 BoogieDeclarations]: Found specification of procedure t4vf_enable_vi [2021-11-12 23:21:24,741 INFO L138 BoogieDeclarations]: Found implementation of procedure t4vf_enable_vi [2021-11-12 23:21:24,741 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-12 23:21:24,741 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-12 23:21:24,741 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-12 23:21:24,741 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-12 23:21:24,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-12 23:21:24,742 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule_prep [2021-11-12 23:21:24,742 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule_prep [2021-11-12 23:21:24,742 INFO L130 BoogieDeclarations]: Found specification of procedure cxgb4vf_poll_controller [2021-11-12 23:21:24,742 INFO L138 BoogieDeclarations]: Found implementation of procedure cxgb4vf_poll_controller [2021-11-12 23:21:24,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:21:24,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:21:24,743 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-12 23:21:24,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-12 23:21:24,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 23:21:24,743 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-12 23:21:24,743 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-12 23:21:24,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 23:21:24,744 INFO L130 BoogieDeclarations]: Found specification of procedure is_eth_imm [2021-11-12 23:21:24,744 INFO L138 BoogieDeclarations]: Found implementation of procedure is_eth_imm [2021-11-12 23:21:24,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 23:21:24,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-12 23:21:24,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 23:21:24,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-12 23:21:24,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 23:21:24,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 23:21:24,745 INFO L130 BoogieDeclarations]: Found specification of procedure reclaimable [2021-11-12 23:21:24,745 INFO L138 BoogieDeclarations]: Found implementation of procedure reclaimable [2021-11-12 23:21:24,745 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-11-12 23:21:24,746 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-11-12 23:21:24,746 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-12 23:21:24,746 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-12 23:21:24,746 INFO L130 BoogieDeclarations]: Found specification of procedure t4vf_intr_handler [2021-11-12 23:21:24,746 INFO L138 BoogieDeclarations]: Found implementation of procedure t4vf_intr_handler [2021-11-12 23:21:24,746 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-12 23:21:24,746 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-12 23:21:24,747 INFO L130 BoogieDeclarations]: Found specification of procedure is_buf_mapped [2021-11-12 23:21:24,747 INFO L138 BoogieDeclarations]: Found implementation of procedure is_buf_mapped [2021-11-12 23:21:24,747 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2021-11-12 23:21:24,747 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2021-11-12 23:21:24,747 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-12 23:21:24,748 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_bits [2021-11-12 23:21:24,748 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_bits [2021-11-12 23:21:24,748 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-12 23:21:24,748 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-12 23:21:24,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-12 23:21:24,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-12 23:21:24,748 INFO L130 BoogieDeclarations]: Found specification of procedure qtimer_val [2021-11-12 23:21:24,749 INFO L138 BoogieDeclarations]: Found implementation of procedure qtimer_val [2021-11-12 23:21:24,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-12 23:21:24,749 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-12 23:21:24,749 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msix [2021-11-12 23:21:24,749 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msix [2021-11-12 23:21:24,749 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR_OR_NULL [2021-11-12 23:21:24,750 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR_OR_NULL [2021-11-12 23:21:24,750 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-12 23:21:24,750 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-12 23:21:24,750 INFO L130 BoogieDeclarations]: Found specification of procedure reg_block_dump [2021-11-12 23:21:24,750 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_block_dump [2021-11-12 23:21:24,750 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-12 23:21:24,751 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-12 23:21:24,751 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-12 23:21:24,751 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-12 23:21:24,751 INFO L130 BoogieDeclarations]: Found specification of procedure rspq_next [2021-11-12 23:21:24,751 INFO L138 BoogieDeclarations]: Found implementation of procedure rspq_next [2021-11-12 23:21:24,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:21:24,752 INFO L130 BoogieDeclarations]: Found specification of procedure dump_mbox [2021-11-12 23:21:24,752 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_mbox [2021-11-12 23:21:24,752 INFO L130 BoogieDeclarations]: Found specification of procedure t4_write_reg [2021-11-12 23:21:24,752 INFO L138 BoogieDeclarations]: Found implementation of procedure t4_write_reg [2021-11-12 23:21:24,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 23:21:24,752 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2021-11-12 23:21:24,753 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2021-11-12 23:21:24,753 INFO L130 BoogieDeclarations]: Found specification of procedure txq_stop [2021-11-12 23:21:24,753 INFO L138 BoogieDeclarations]: Found implementation of procedure txq_stop [2021-11-12 23:21:24,753 INFO L130 BoogieDeclarations]: Found specification of procedure cxgb4vf_pci_shutdown [2021-11-12 23:21:24,753 INFO L138 BoogieDeclarations]: Found implementation of procedure cxgb4vf_pci_shutdown [2021-11-12 23:21:24,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 23:21:24,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 23:21:24,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 23:21:24,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 23:21:24,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 23:21:24,754 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-12 23:21:24,754 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-12 23:21:24,754 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-12 23:21:24,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-12 23:21:24,755 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-12 23:21:24,755 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-12 23:21:24,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-12 23:21:24,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-12 23:21:24,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-12 23:21:24,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-12 23:21:24,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-12 23:21:24,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-12 23:21:24,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-12 23:21:24,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-12 23:21:24,756 INFO L130 BoogieDeclarations]: Found specification of procedure t4_read_reg64 [2021-11-12 23:21:24,757 INFO L138 BoogieDeclarations]: Found implementation of procedure t4_read_reg64 [2021-11-12 23:21:24,757 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-12 23:21:24,757 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-12 23:21:24,757 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2021-11-12 23:21:24,757 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2021-11-12 23:21:24,757 INFO L130 BoogieDeclarations]: Found specification of procedure free_rspq_fl [2021-11-12 23:21:24,757 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rspq_fl [2021-11-12 23:21:24,758 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-12 23:21:24,758 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-12 23:21:24,758 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-12 23:21:24,758 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-12 23:21:24,758 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-12 23:21:24,758 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-12 23:21:24,759 INFO L130 BoogieDeclarations]: Found specification of procedure cxgb4vf_set_rxmode [2021-11-12 23:21:24,759 INFO L138 BoogieDeclarations]: Found implementation of procedure cxgb4vf_set_rxmode [2021-11-12 23:21:24,759 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 23:21:24,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 23:21:24,759 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-12 23:21:24,759 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-12 23:21:24,760 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2021-11-12 23:21:24,760 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2021-11-12 23:21:24,760 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-12 23:21:24,760 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-12 23:21:24,760 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-12 23:21:24,760 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-12 23:21:24,760 INFO L130 BoogieDeclarations]: Found specification of procedure get_buf_addr [2021-11-12 23:21:24,761 INFO L138 BoogieDeclarations]: Found implementation of procedure get_buf_addr [2021-11-12 23:21:24,761 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2021-11-12 23:21:24,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2021-11-12 23:21:24,761 INFO L130 BoogieDeclarations]: Found specification of procedure t4vf_wr_mbox [2021-11-12 23:21:24,761 INFO L138 BoogieDeclarations]: Found implementation of procedure t4vf_wr_mbox [2021-11-12 23:21:24,761 INFO L130 BoogieDeclarations]: Found specification of procedure sge_queue_entries [2021-11-12 23:21:24,762 INFO L138 BoogieDeclarations]: Found implementation of procedure sge_queue_entries [2021-11-12 23:21:24,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-12 23:21:24,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-12 23:21:24,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-12 23:21:24,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-12 23:21:24,762 INFO L130 BoogieDeclarations]: Found specification of procedure seq_release [2021-11-12 23:21:24,763 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_release [2021-11-12 23:21:24,763 INFO L130 BoogieDeclarations]: Found specification of procedure get_buf_size [2021-11-12 23:21:24,763 INFO L138 BoogieDeclarations]: Found implementation of procedure get_buf_size [2021-11-12 23:21:24,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-12 23:21:24,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-12 23:21:24,763 INFO L130 BoogieDeclarations]: Found specification of procedure interfaces_get_idx [2021-11-12 23:21:24,763 INFO L138 BoogieDeclarations]: Found implementation of procedure interfaces_get_idx [2021-11-12 23:21:24,764 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-12 23:21:24,764 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-12 23:21:24,764 INFO L130 BoogieDeclarations]: Found specification of procedure __ilog2_u32 [2021-11-12 23:21:24,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __ilog2_u32 [2021-11-12 23:21:24,764 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-12 23:21:24,764 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-12 23:21:24,765 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2021-11-12 23:21:24,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2021-11-12 23:21:24,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-12 23:21:24,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-12 23:21:24,765 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-12 23:21:24,765 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-12 23:21:24,766 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_master [2021-11-12 23:21:24,766 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_master [2021-11-12 23:21:24,766 INFO L130 BoogieDeclarations]: Found specification of procedure cxgb4vf_pci_remove [2021-11-12 23:21:24,766 INFO L138 BoogieDeclarations]: Found implementation of procedure cxgb4vf_pci_remove [2021-11-12 23:21:24,766 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-12 23:21:24,766 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-12 23:21:24,767 INFO L130 BoogieDeclarations]: Found specification of procedure t4vf_sge_alloc_rxq [2021-11-12 23:21:24,767 INFO L138 BoogieDeclarations]: Found implementation of procedure t4vf_sge_alloc_rxq [2021-11-12 23:21:24,767 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2021-11-12 23:21:24,767 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2021-11-12 23:21:24,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-12 23:21:24,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-12 23:21:24,768 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-12 23:21:24,768 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-12 23:21:26,801 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 23:23:04,648 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-12 23:23:04,779 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:23:04,779 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-11-12 23:23:04,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:23:04 BoogieIcfgContainer [2021-11-12 23:23:04,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:23:04,787 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:23:04,787 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:23:04,790 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:23:04,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:21:14" (1/3) ... [2021-11-12 23:23:04,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e61100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:23:04, skipping insertion in model container [2021-11-12 23:23:04,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:21:23" (2/3) ... [2021-11-12 23:23:04,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e61100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:23:04, skipping insertion in model container [2021-11-12 23:23:04,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:23:04" (3/3) ... [2021-11-12 23:23:04,793 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i [2021-11-12 23:23:04,798 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:23:04,798 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-12 23:23:04,864 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:23:04,870 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 23:23:04,870 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-12 23:23:04,967 INFO L276 IsEmpty]: Start isEmpty. Operand has 4063 states, 2873 states have (on average 1.2868082144100244) internal successors, (3697), 2909 states have internal predecessors, (3697), 1018 states have call successors, (1018), 171 states have call predecessors, (1018), 170 states have return successors, (1009), 1004 states have call predecessors, (1009), 1009 states have call successors, (1009) [2021-11-12 23:23:05,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 667 [2021-11-12 23:23:05,021 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:23:05,023 INFO L514 BasicCegarLoop]: trace histogram [59, 59, 58, 58, 58, 58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:23:05,024 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:23:05,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:23:05,029 INFO L85 PathProgramCache]: Analyzing trace with hash 221785855, now seen corresponding path program 1 times [2021-11-12 23:23:05,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:23:05,059 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1554024839] [2021-11-12 23:23:05,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:23:05,060 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:23:05,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:23:05,063 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:23:05,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:23:31,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:23:31,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 5797 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:23:31,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:23:33,268 INFO L134 CoverageAnalysis]: Checked inductivity of 15051 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 14877 trivial. 0 not checked. [2021-11-12 23:23:33,268 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:23:34,944 INFO L134 CoverageAnalysis]: Checked inductivity of 15051 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15051 trivial. 0 not checked. [2021-11-12 23:23:34,945 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:23:34,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1554024839] [2021-11-12 23:23:34,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1554024839] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:23:34,948 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:23:34,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:23:34,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490098430] [2021-11-12 23:23:34,952 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:23:34,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:23:34,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:23:34,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:23:34,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:23:35,006 INFO L87 Difference]: Start difference. First operand has 4063 states, 2873 states have (on average 1.2868082144100244) internal successors, (3697), 2909 states have internal predecessors, (3697), 1018 states have call successors, (1018), 171 states have call predecessors, (1018), 170 states have return successors, (1009), 1004 states have call predecessors, (1009), 1009 states have call successors, (1009) Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 4 states have call successors, (64), 3 states have call predecessors, (64), 3 states have return successors, (63), 4 states have call predecessors, (63), 4 states have call successors, (63) [2021-11-12 23:23:37,779 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:23:54,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:23:54,769 INFO L93 Difference]: Finished difference Result 15549 states and 22045 transitions. [2021-11-12 23:23:54,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:23:54,781 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 4 states have call successors, (64), 3 states have call predecessors, (64), 3 states have return successors, (63), 4 states have call predecessors, (63), 4 states have call successors, (63) Word has length 666 [2021-11-12 23:23:54,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:23:54,907 INFO L225 Difference]: With dead ends: 15549 [2021-11-12 23:23:54,907 INFO L226 Difference]: Without dead ends: 11581 [2021-11-12 23:23:54,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1330 GetRequests, 1328 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:23:54,950 INFO L933 BasicCegarLoop]: 7481 mSDtfsCounter, 14323 mSDsluCounter, 8836 mSDsCounter, 0 mSdLazyCounter, 2050 mSolverCounterSat, 1895 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16866.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14323 SdHoareTripleChecker+Valid, 16317 SdHoareTripleChecker+Invalid, 3946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 102.39ms SdHoareTripleChecker+Time, 1895 IncrementalHoareTripleChecker+Valid, 2050 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18817.64ms IncrementalHoareTripleChecker+Time [2021-11-12 23:23:54,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14323 Valid, 16317 Invalid, 3946 Unknown, 0 Unchecked, 102.39ms Time], IncrementalHoareTripleChecker [1895 Valid, 2050 Invalid, 1 Unknown, 0 Unchecked, 18817.64ms Time] [2021-11-12 23:23:54,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11581 states. [2021-11-12 23:23:55,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11581 to 11573. [2021-11-12 23:23:55,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11573 states, 8208 states have (on average 1.273391812865497) internal successors, (10452), 8308 states have internal predecessors, (10452), 2859 states have call successors, (2859), 505 states have call predecessors, (2859), 504 states have return successors, (2856), 2841 states have call predecessors, (2856), 2856 states have call successors, (2856) [2021-11-12 23:23:55,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11573 states to 11573 states and 16167 transitions. [2021-11-12 23:23:55,754 INFO L78 Accepts]: Start accepts. Automaton has 11573 states and 16167 transitions. Word has length 666 [2021-11-12 23:23:55,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:23:55,757 INFO L470 AbstractCegarLoop]: Abstraction has 11573 states and 16167 transitions. [2021-11-12 23:23:55,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 4 states have call successors, (64), 3 states have call predecessors, (64), 3 states have return successors, (63), 4 states have call predecessors, (63), 4 states have call successors, (63) [2021-11-12 23:23:55,758 INFO L276 IsEmpty]: Start isEmpty. Operand 11573 states and 16167 transitions. [2021-11-12 23:23:55,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 688 [2021-11-12 23:23:55,791 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:23:55,792 INFO L514 BasicCegarLoop]: trace histogram [59, 59, 58, 58, 58, 58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:23:55,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:23:56,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:23:56,020 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:23:56,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:23:56,021 INFO L85 PathProgramCache]: Analyzing trace with hash 819925469, now seen corresponding path program 1 times [2021-11-12 23:23:56,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:23:56,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1373857639] [2021-11-12 23:23:56,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:23:56,034 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:23:56,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:23:56,036 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:23:56,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:24:23,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:23,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 5855 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:24:23,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:24:24,746 INFO L134 CoverageAnalysis]: Checked inductivity of 15051 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 14877 trivial. 0 not checked. [2021-11-12 23:24:24,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:24:26,240 INFO L134 CoverageAnalysis]: Checked inductivity of 15051 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15051 trivial. 0 not checked. [2021-11-12 23:24:26,240 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:24:26,241 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1373857639] [2021-11-12 23:24:26,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1373857639] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:26,241 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:26,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:24:26,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109874105] [2021-11-12 23:24:26,243 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:26,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:24:26,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:24:26,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:24:26,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:24:26,247 INFO L87 Difference]: Start difference. First operand 11573 states and 16167 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 4 states have call successors, (63), 3 states have call predecessors, (63), 3 states have return successors, (63), 4 states have call predecessors, (63), 4 states have call successors, (63) [2021-11-12 23:24:28,898 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.64s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:24:42,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:42,301 INFO L93 Difference]: Finished difference Result 33942 states and 47255 transitions. [2021-11-12 23:24:42,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:24:42,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 4 states have call successors, (63), 3 states have call predecessors, (63), 3 states have return successors, (63), 4 states have call predecessors, (63), 4 states have call successors, (63) Word has length 687 [2021-11-12 23:24:42,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:42,508 INFO L225 Difference]: With dead ends: 33942 [2021-11-12 23:24:42,508 INFO L226 Difference]: Without dead ends: 22490 [2021-11-12 23:24:42,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1372 GetRequests, 1370 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:24:42,584 INFO L933 BasicCegarLoop]: 7410 mSDtfsCounter, 8462 mSDsluCounter, 10217 mSDsCounter, 0 mSdLazyCounter, 1748 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13882.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8462 SdHoareTripleChecker+Valid, 17627 SdHoareTripleChecker+Invalid, 1798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 53.38ms SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1748 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14892.37ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:42,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8462 Valid, 17627 Invalid, 1798 Unknown, 0 Unchecked, 53.38ms Time], IncrementalHoareTripleChecker [49 Valid, 1748 Invalid, 1 Unknown, 0 Unchecked, 14892.37ms Time] [2021-11-12 23:24:42,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22490 states. [2021-11-12 23:24:43,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22490 to 22476. [2021-11-12 23:24:43,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22476 states, 15915 states have (on average 1.271253534401508) internal successors, (20232), 16122 states have internal predecessors, (20232), 5488 states have call successors, (5488), 1074 states have call predecessors, (5488), 1071 states have return successors, (5485), 5445 states have call predecessors, (5485), 5485 states have call successors, (5485) [2021-11-12 23:24:43,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22476 states to 22476 states and 31205 transitions. [2021-11-12 23:24:43,928 INFO L78 Accepts]: Start accepts. Automaton has 22476 states and 31205 transitions. Word has length 687 [2021-11-12 23:24:43,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:43,930 INFO L470 AbstractCegarLoop]: Abstraction has 22476 states and 31205 transitions. [2021-11-12 23:24:43,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 4 states have call successors, (63), 3 states have call predecessors, (63), 3 states have return successors, (63), 4 states have call predecessors, (63), 4 states have call successors, (63) [2021-11-12 23:24:43,933 INFO L276 IsEmpty]: Start isEmpty. Operand 22476 states and 31205 transitions. [2021-11-12 23:24:43,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 710 [2021-11-12 23:24:43,971 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:43,973 INFO L514 BasicCegarLoop]: trace histogram [61, 61, 58, 58, 58, 58, 58, 58, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:44,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:24:44,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:24:44,198 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:24:44,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:44,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1194007865, now seen corresponding path program 1 times [2021-11-12 23:24:44,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:24:44,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1134344370] [2021-11-12 23:24:44,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:44,213 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:24:44,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:24:44,214 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:24:44,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:25:11,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:25:11,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 5864 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:25:11,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:25:18,912 INFO L134 CoverageAnalysis]: Checked inductivity of 15431 backedges. 373 proven. 0 refuted. 0 times theorem prover too weak. 15058 trivial. 0 not checked. [2021-11-12 23:25:18,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:25:21,798 INFO L134 CoverageAnalysis]: Checked inductivity of 15431 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 15420 trivial. 0 not checked. [2021-11-12 23:25:21,798 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:25:21,799 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1134344370] [2021-11-12 23:25:21,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1134344370] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:25:21,800 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:25:21,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2021-11-12 23:25:21,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511980475] [2021-11-12 23:25:21,800 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:25:21,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:25:21,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:25:21,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:25:21,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:25:21,803 INFO L87 Difference]: Start difference. First operand 22476 states and 31205 transitions. Second operand has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 4 states have call successors, (133), 3 states have call predecessors, (133), 3 states have return successors, (132), 4 states have call predecessors, (132), 4 states have call successors, (132) [2021-11-12 23:25:25,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:25:25,438 INFO L93 Difference]: Finished difference Result 42168 states and 58549 transitions. [2021-11-12 23:25:25,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:25:25,439 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 4 states have call successors, (133), 3 states have call predecessors, (133), 3 states have return successors, (132), 4 states have call predecessors, (132), 4 states have call successors, (132) Word has length 709 [2021-11-12 23:25:25,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:25:25,542 INFO L225 Difference]: With dead ends: 42168 [2021-11-12 23:25:25,542 INFO L226 Difference]: Without dead ends: 22476 [2021-11-12 23:25:25,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1416 GetRequests, 1414 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:25:25,615 INFO L933 BasicCegarLoop]: 5583 mSDtfsCounter, 8876 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1957 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2354.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8876 SdHoareTripleChecker+Valid, 5583 SdHoareTripleChecker+Invalid, 1960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.93ms SdHoareTripleChecker+Time, 1957 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2938.71ms IncrementalHoareTripleChecker+Time [2021-11-12 23:25:25,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8876 Valid, 5583 Invalid, 1960 Unknown, 0 Unchecked, 16.93ms Time], IncrementalHoareTripleChecker [1957 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 2938.71ms Time] [2021-11-12 23:25:25,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22476 states. [2021-11-12 23:25:26,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22476 to 22476. [2021-11-12 23:25:26,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22476 states, 15915 states have (on average 1.2708136977694) internal successors, (20225), 16122 states have internal predecessors, (20225), 5488 states have call successors, (5488), 1074 states have call predecessors, (5488), 1071 states have return successors, (5485), 5445 states have call predecessors, (5485), 5485 states have call successors, (5485) [2021-11-12 23:25:26,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22476 states to 22476 states and 31198 transitions. [2021-11-12 23:25:26,936 INFO L78 Accepts]: Start accepts. Automaton has 22476 states and 31198 transitions. Word has length 709 [2021-11-12 23:25:26,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:25:26,939 INFO L470 AbstractCegarLoop]: Abstraction has 22476 states and 31198 transitions. [2021-11-12 23:25:26,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 4 states have call successors, (133), 3 states have call predecessors, (133), 3 states have return successors, (132), 4 states have call predecessors, (132), 4 states have call successors, (132) [2021-11-12 23:25:26,939 INFO L276 IsEmpty]: Start isEmpty. Operand 22476 states and 31198 transitions. [2021-11-12 23:25:26,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 753 [2021-11-12 23:25:26,960 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:25:26,961 INFO L514 BasicCegarLoop]: trace histogram [63, 63, 59, 59, 59, 59, 59, 59, 4, 4, 4, 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] [2021-11-12 23:25:27,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:25:27,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:25:27,184 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:25:27,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:25:27,184 INFO L85 PathProgramCache]: Analyzing trace with hash -345598233, now seen corresponding path program 1 times [2021-11-12 23:25:27,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:25:27,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1007491247] [2021-11-12 23:25:27,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:25:27,193 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:25:27,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:25:27,194 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:25:27,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:25:54,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:25:54,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 5983 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-12 23:25:54,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:25:57,595 INFO L134 CoverageAnalysis]: Checked inductivity of 16160 backedges. 395 proven. 0 refuted. 0 times theorem prover too weak. 15765 trivial. 0 not checked. [2021-11-12 23:25:57,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:26:00,544 INFO L134 CoverageAnalysis]: Checked inductivity of 16160 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 16137 trivial. 0 not checked. [2021-11-12 23:26:00,544 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:26:00,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1007491247] [2021-11-12 23:26:00,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1007491247] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:26:00,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:26:00,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14] total 16 [2021-11-12 23:26:00,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150192296] [2021-11-12 23:26:00,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:26:00,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-12 23:26:00,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:26:00,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-12 23:26:00,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-11-12 23:26:00,548 INFO L87 Difference]: Start difference. First operand 22476 states and 31198 transitions. Second operand has 14 states, 12 states have (on average 11.333333333333334) internal successors, (136), 13 states have internal predecessors, (136), 4 states have call successors, (72), 2 states have call predecessors, (72), 4 states have return successors, (71), 4 states have call predecessors, (71), 4 states have call successors, (71) [2021-11-12 23:26:20,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:26:20,867 INFO L93 Difference]: Finished difference Result 60863 states and 86770 transitions. [2021-11-12 23:26:20,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:26:20,867 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 11.333333333333334) internal successors, (136), 13 states have internal predecessors, (136), 4 states have call successors, (72), 2 states have call predecessors, (72), 4 states have return successors, (71), 4 states have call predecessors, (71), 4 states have call successors, (71) Word has length 752 [2021-11-12 23:26:20,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:26:21,065 INFO L225 Difference]: With dead ends: 60863 [2021-11-12 23:26:21,066 INFO L226 Difference]: Without dead ends: 41159 [2021-11-12 23:26:21,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1514 GetRequests, 1489 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=114, Invalid=486, Unknown=0, NotChecked=0, Total=600 [2021-11-12 23:26:21,136 INFO L933 BasicCegarLoop]: 11169 mSDtfsCounter, 7477 mSDsluCounter, 121200 mSDsCounter, 0 mSdLazyCounter, 3093 mSolverCounterSat, 2035 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16036.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7985 SdHoareTripleChecker+Valid, 132369 SdHoareTripleChecker+Invalid, 5128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 196.03ms SdHoareTripleChecker+Time, 2035 IncrementalHoareTripleChecker+Valid, 3093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17193.98ms IncrementalHoareTripleChecker+Time [2021-11-12 23:26:21,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7985 Valid, 132369 Invalid, 5128 Unknown, 0 Unchecked, 196.03ms Time], IncrementalHoareTripleChecker [2035 Valid, 3093 Invalid, 0 Unknown, 0 Unchecked, 17193.98ms Time] [2021-11-12 23:26:21,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41159 states. [2021-11-12 23:26:23,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41159 to 22479. [2021-11-12 23:26:23,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22479 states, 15918 states have (on average 1.2706370147003392) internal successors, (20226), 16125 states have internal predecessors, (20226), 5488 states have call successors, (5488), 1074 states have call predecessors, (5488), 1071 states have return successors, (5485), 5445 states have call predecessors, (5485), 5485 states have call successors, (5485) [2021-11-12 23:26:23,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22479 states to 22479 states and 31199 transitions. [2021-11-12 23:26:23,375 INFO L78 Accepts]: Start accepts. Automaton has 22479 states and 31199 transitions. Word has length 752 [2021-11-12 23:26:23,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:26:23,377 INFO L470 AbstractCegarLoop]: Abstraction has 22479 states and 31199 transitions. [2021-11-12 23:26:23,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 11.333333333333334) internal successors, (136), 13 states have internal predecessors, (136), 4 states have call successors, (72), 2 states have call predecessors, (72), 4 states have return successors, (71), 4 states have call predecessors, (71), 4 states have call successors, (71) [2021-11-12 23:26:23,377 INFO L276 IsEmpty]: Start isEmpty. Operand 22479 states and 31199 transitions. [2021-11-12 23:26:23,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 762 [2021-11-12 23:26:23,399 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:26:23,399 INFO L514 BasicCegarLoop]: trace histogram [63, 63, 59, 59, 59, 59, 59, 59, 4, 4, 4, 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] [2021-11-12 23:26:23,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:26:23,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:26:23,621 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:26:23,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:26:23,622 INFO L85 PathProgramCache]: Analyzing trace with hash -418041497, now seen corresponding path program 1 times [2021-11-12 23:26:23,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:26:23,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [898556146] [2021-11-12 23:26:23,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:26:23,637 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:26:23,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:26:23,639 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:26:23,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 23:26:52,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:26:52,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 6002 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:26:52,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:27:00,184 INFO L134 CoverageAnalysis]: Checked inductivity of 16166 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16166 trivial. 0 not checked. [2021-11-12 23:27:00,184 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:27:03,450 INFO L134 CoverageAnalysis]: Checked inductivity of 16166 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16166 trivial. 0 not checked. [2021-11-12 23:27:03,450 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:27:03,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [898556146] [2021-11-12 23:27:03,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [898556146] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:27:03,450 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:27:03,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-12 23:27:03,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206115094] [2021-11-12 23:27:03,451 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:27:03,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:27:03,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:27:03,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:27:03,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:27:03,454 INFO L87 Difference]: Start difference. First operand 22479 states and 31199 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 2 states have call successors, (143), 2 states have call predecessors, (143), 2 states have return successors, (142), 2 states have call predecessors, (142), 2 states have call successors, (142) [2021-11-12 23:27:05,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:27:05,167 INFO L93 Difference]: Finished difference Result 22479 states and 31199 transitions. [2021-11-12 23:27:05,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:27:05,168 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 2 states have call successors, (143), 2 states have call predecessors, (143), 2 states have return successors, (142), 2 states have call predecessors, (142), 2 states have call successors, (142) Word has length 761 [2021-11-12 23:27:05,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:27:05,270 INFO L225 Difference]: With dead ends: 22479 [2021-11-12 23:27:05,270 INFO L226 Difference]: Without dead ends: 22436 [2021-11-12 23:27:05,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1521 GetRequests, 1517 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:27:05,283 INFO L933 BasicCegarLoop]: 5582 mSDtfsCounter, 5323 mSDsluCounter, 11164 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 786.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5323 SdHoareTripleChecker+Valid, 16746 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.97ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 896.80ms IncrementalHoareTripleChecker+Time [2021-11-12 23:27:05,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5323 Valid, 16746 Invalid, 5 Unknown, 0 Unchecked, 21.97ms Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 896.80ms Time] [2021-11-12 23:27:05,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22436 states. [2021-11-12 23:27:06,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22436 to 22412. [2021-11-12 23:27:06,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22412 states, 15876 states have (on average 1.2696523053665911) internal successors, (20157), 16074 states have internal predecessors, (20157), 5466 states have call successors, (5466), 1069 states have call predecessors, (5466), 1069 states have return successors, (5466), 5434 states have call predecessors, (5466), 5466 states have call successors, (5466) [2021-11-12 23:27:06,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22412 states to 22412 states and 31089 transitions. [2021-11-12 23:27:06,984 INFO L78 Accepts]: Start accepts. Automaton has 22412 states and 31089 transitions. Word has length 761 [2021-11-12 23:27:06,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:27:06,986 INFO L470 AbstractCegarLoop]: Abstraction has 22412 states and 31089 transitions. [2021-11-12 23:27:06,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 2 states have call successors, (143), 2 states have call predecessors, (143), 2 states have return successors, (142), 2 states have call predecessors, (142), 2 states have call successors, (142) [2021-11-12 23:27:06,986 INFO L276 IsEmpty]: Start isEmpty. Operand 22412 states and 31089 transitions. [2021-11-12 23:27:07,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 804 [2021-11-12 23:27:07,053 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:27:07,054 INFO L514 BasicCegarLoop]: trace histogram [65, 65, 59, 59, 59, 59, 59, 59, 5, 5, 5, 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] [2021-11-12 23:27:07,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:27:07,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:27:07,278 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:27:07,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:27:07,278 INFO L85 PathProgramCache]: Analyzing trace with hash -678080009, now seen corresponding path program 1 times [2021-11-12 23:27:07,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:27:07,286 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1326691031] [2021-11-12 23:27:07,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:27:07,286 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:27:07,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:27:07,287 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:27:07,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 23:27:36,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:27:36,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 6090 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:27:36,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:27:38,289 INFO L134 CoverageAnalysis]: Checked inductivity of 16564 backedges. 790 proven. 0 refuted. 0 times theorem prover too weak. 15774 trivial. 0 not checked. [2021-11-12 23:27:38,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:27:40,056 INFO L134 CoverageAnalysis]: Checked inductivity of 16564 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 16546 trivial. 0 not checked. [2021-11-12 23:27:40,057 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:27:40,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1326691031] [2021-11-12 23:27:40,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1326691031] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:27:40,057 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:27:40,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:27:40,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521441788] [2021-11-12 23:27:40,058 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:27:40,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:27:40,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:27:40,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:27:40,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:27:40,061 INFO L87 Difference]: Start difference. First operand 22412 states and 31089 transitions. Second operand has 4 states, 4 states have (on average 51.25) internal successors, (205), 4 states have internal predecessors, (205), 4 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 4 states have call predecessors, (81), 4 states have call successors, (81) [2021-11-12 23:27:42,721 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:27:55,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:27:55,542 INFO L93 Difference]: Finished difference Result 58393 states and 80898 transitions. [2021-11-12 23:27:55,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:27:55,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.25) internal successors, (205), 4 states have internal predecessors, (205), 4 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 4 states have call predecessors, (81), 4 states have call successors, (81) Word has length 803 [2021-11-12 23:27:55,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:27:55,700 INFO L225 Difference]: With dead ends: 58393 [2021-11-12 23:27:55,700 INFO L226 Difference]: Without dead ends: 38765 [2021-11-12 23:27:55,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1604 GetRequests, 1602 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:27:55,758 INFO L933 BasicCegarLoop]: 9958 mSDtfsCounter, 9098 mSDsluCounter, 8276 mSDsCounter, 0 mSdLazyCounter, 1975 mSolverCounterSat, 34 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12720.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9098 SdHoareTripleChecker+Valid, 18234 SdHoareTripleChecker+Invalid, 2010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 41.84ms SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1975 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13807.45ms IncrementalHoareTripleChecker+Time [2021-11-12 23:27:55,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9098 Valid, 18234 Invalid, 2010 Unknown, 0 Unchecked, 41.84ms Time], IncrementalHoareTripleChecker [34 Valid, 1975 Invalid, 1 Unknown, 0 Unchecked, 13807.45ms Time] [2021-11-12 23:27:55,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38765 states. [2021-11-12 23:27:58,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38765 to 38763. [2021-11-12 23:27:58,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38763 states, 27419 states have (on average 1.2689740690761881) internal successors, (34794), 27773 states have internal predecessors, (34794), 9421 states have call successors, (9421), 1922 states have call predecessors, (9421), 1922 states have return successors, (9421), 9362 states have call predecessors, (9421), 9421 states have call successors, (9421) [2021-11-12 23:27:58,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38763 states to 38763 states and 53636 transitions. [2021-11-12 23:27:58,274 INFO L78 Accepts]: Start accepts. Automaton has 38763 states and 53636 transitions. Word has length 803 [2021-11-12 23:27:58,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:27:58,276 INFO L470 AbstractCegarLoop]: Abstraction has 38763 states and 53636 transitions. [2021-11-12 23:27:58,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.25) internal successors, (205), 4 states have internal predecessors, (205), 4 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 4 states have call predecessors, (81), 4 states have call successors, (81) [2021-11-12 23:27:58,276 INFO L276 IsEmpty]: Start isEmpty. Operand 38763 states and 53636 transitions. [2021-11-12 23:27:58,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 860 [2021-11-12 23:27:58,351 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:27:58,352 INFO L514 BasicCegarLoop]: trace histogram [65, 65, 59, 59, 59, 59, 59, 59, 9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-12 23:27:58,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 23:27:58,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:27:58,566 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:27:58,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:27:58,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1358722958, now seen corresponding path program 1 times [2021-11-12 23:27:58,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:27:58,578 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1481236881] [2021-11-12 23:27:58,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:27:58,578 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:27:58,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:27:58,579 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:27:58,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 23:28:25,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:28:26,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 6198 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:28:26,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:28:34,711 INFO L134 CoverageAnalysis]: Checked inductivity of 16692 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16692 trivial. 0 not checked. [2021-11-12 23:28:34,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:28:38,094 INFO L134 CoverageAnalysis]: Checked inductivity of 16692 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16692 trivial. 0 not checked. [2021-11-12 23:28:38,094 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:28:38,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1481236881] [2021-11-12 23:28:38,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1481236881] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:28:38,094 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:28:38,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-12 23:28:38,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918475955] [2021-11-12 23:28:38,095 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:28:38,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:28:38,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:28:38,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:28:38,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:28:38,097 INFO L87 Difference]: Start difference. First operand 38763 states and 53636 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 2 states have call successors, (154), 2 states have call predecessors, (154), 2 states have return successors, (154), 2 states have call predecessors, (154), 2 states have call successors, (154) [2021-11-12 23:28:44,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:28:44,775 INFO L93 Difference]: Finished difference Result 56493 states and 80355 transitions. [2021-11-12 23:28:44,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:28:44,775 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 2 states have call successors, (154), 2 states have call predecessors, (154), 2 states have return successors, (154), 2 states have call predecessors, (154), 2 states have call successors, (154) Word has length 859 [2021-11-12 23:28:44,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:28:44,783 INFO L225 Difference]: With dead ends: 56493 [2021-11-12 23:28:44,783 INFO L226 Difference]: Without dead ends: 0 [2021-11-12 23:28:44,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1717 GetRequests, 1713 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:28:44,929 INFO L933 BasicCegarLoop]: 7919 mSDtfsCounter, 9477 mSDsluCounter, 6056 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 1018 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3940.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9477 SdHoareTripleChecker+Valid, 13975 SdHoareTripleChecker+Invalid, 1529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.59ms SdHoareTripleChecker+Time, 1018 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4359.75ms IncrementalHoareTripleChecker+Time [2021-11-12 23:28:44,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9477 Valid, 13975 Invalid, 1529 Unknown, 0 Unchecked, 32.59ms Time], IncrementalHoareTripleChecker [1018 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 4359.75ms Time] [2021-11-12 23:28:44,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-12 23:28:44,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-12 23:28:44,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:28:44,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-12 23:28:44,944 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 859 [2021-11-12 23:28:44,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:28:44,944 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-12 23:28:44,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 2 states have call successors, (154), 2 states have call predecessors, (154), 2 states have return successors, (154), 2 states have call predecessors, (154), 2 states have call successors, (154) [2021-11-12 23:28:44,945 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-12 23:28:44,945 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-12 23:28:44,948 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-12 23:28:44,948 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-12 23:28:45,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-12 23:28:45,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e53c45cd-7238-43a9-a837-aaabb7899ea3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:28:45,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.