./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 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/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_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH --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-9ad7fb2 [2021-11-03 04:54:42,887 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:54:42,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:54:42,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:54:42,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:54:42,936 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:54:42,938 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:54:42,940 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:54:42,942 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:54:42,943 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:54:42,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:54:42,946 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:54:42,947 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:54:42,948 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:54:42,949 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:54:42,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:54:42,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:54:42,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:54:42,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:54:42,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:54:42,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:54:42,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:54:42,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:54:42,963 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:54:42,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:54:42,967 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:54:42,968 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:54:42,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:54:42,969 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:54:42,970 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:54:42,971 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:54:42,972 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:54:42,973 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:54:42,974 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:54:42,975 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:54:42,976 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:54:42,976 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:54:42,977 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:54:42,977 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:54:42,978 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:54:42,979 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:54:42,980 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:54:43,006 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:54:43,007 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:54:43,008 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:54:43,008 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:54:43,009 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:54:43,009 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:54:43,009 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:54:43,010 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:54:43,010 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:54:43,010 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:54:43,011 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:54:43,011 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:54:43,012 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:54:43,012 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:54:43,012 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:54:43,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:54:43,014 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:54:43,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:54:43,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:54:43,015 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:54:43,015 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:54:43,015 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:54:43,016 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:54:43,016 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:54:43,017 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:54:43,017 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:54:43,017 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:54:43,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:54:43,018 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:54:43,019 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:54:43,019 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:54:43,019 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:54:43,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:54:43,020 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:54:43,020 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:54:43,020 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:54:43,021 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_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af0382669342cd1b96ae06a23957b47efa45a6d5fd31066fb67e67230764554c [2021-11-03 04:54:43,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:54:43,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:54:43,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:54:43,266 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:54:43,266 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:54:43,267 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i [2021-11-03 04:54:43,331 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/data/978e87a64/514f3a91eae643e4b1cc45a362c42678/FLAG3b4e98b4e [2021-11-03 04:54:44,373 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:54:44,374 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i [2021-11-03 04:54:44,451 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/data/978e87a64/514f3a91eae643e4b1cc45a362c42678/FLAG3b4e98b4e [2021-11-03 04:54:44,655 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/data/978e87a64/514f3a91eae643e4b1cc45a362c42678 [2021-11-03 04:54:44,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:54:44,660 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:54:44,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:54:44,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:54:44,668 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:54:44,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:54:44" (1/1) ... [2021-11-03 04:54:44,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ccbbee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:54:44, skipping insertion in model container [2021-11-03 04:54:44,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:54:44" (1/1) ... [2021-11-03 04:54:44,680 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:54:44,930 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:54:47,111 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:54:47,116 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:54:47,215 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:54:47,217 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:54:47,226 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:54:47,230 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:54:47,416 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:54:47,551 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:54:47,553 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:54:49,208 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:54:50,124 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:54:50,126 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:54:50,335 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:54:50,396 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:54:50,397 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:54:50,431 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:54:50,432 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:54:50,445 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:54:50,463 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:54:50,482 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:54:50,811 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_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[582586,582599] [2021-11-03 04:54:50,814 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_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[582733,582746] [2021-11-03 04:54:50,814 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_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[582872,582885] [2021-11-03 04:54:50,815 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_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[583030,583043] [2021-11-03 04:54:50,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:54:50,925 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) [2021-11-03 04:54:50,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@228ebdf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:54:50, skipping insertion in model container [2021-11-03 04:54:50,926 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:54:50,926 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 04:54:50,928 INFO L168 Benchmark]: Toolchain (without parser) took 6266.43 ms. Allocated memory was 151.0 MB in the beginning and 213.9 MB in the end (delta: 62.9 MB). Free memory was 93.3 MB in the beginning and 109.9 MB in the end (delta: -16.7 MB). Peak memory consumption was 71.8 MB. Max. memory is 16.1 GB. [2021-11-03 04:54:50,929 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 81.8 MB. Free memory was 37.7 MB in the beginning and 37.6 MB in the end (delta: 36.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:54:50,930 INFO L168 Benchmark]: CACSL2BoogieTranslator took 6260.84 ms. Allocated memory was 151.0 MB in the beginning and 213.9 MB in the end (delta: 62.9 MB). Free memory was 93.3 MB in the beginning and 109.9 MB in the end (delta: -16.7 MB). Peak memory consumption was 71.8 MB. Max. memory is 16.1 GB. [2021-11-03 04:54:50,932 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 81.8 MB. Free memory was 37.7 MB in the beginning and 37.6 MB in the end (delta: 36.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 6260.84 ms. Allocated memory was 151.0 MB in the beginning and 213.9 MB in the end (delta: 62.9 MB). Free memory was 93.3 MB in the beginning and 109.9 MB in the end (delta: -16.7 MB). Peak memory consumption was 71.8 MB. Max. memory is 16.1 GB. * 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_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/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_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH --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-9ad7fb2 [2021-11-03 04:54:53,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:54:53,064 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:54:53,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:54:53,111 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:54:53,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:54:53,117 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:54:53,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:54:53,124 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:54:53,132 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:54:53,133 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:54:53,135 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:54:53,135 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:54:53,137 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:54:53,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:54:53,143 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:54:53,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:54:53,145 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:54:53,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:54:53,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:54:53,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:54:53,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:54:53,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:54:53,162 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:54:53,170 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:54:53,170 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:54:53,171 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:54:53,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:54:53,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:54:53,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:54:53,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:54:53,175 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:54:53,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:54:53,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:54:53,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:54:53,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:54:53,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:54:53,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:54:53,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:54:53,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:54:53,182 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:54:53,188 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:54:53,231 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:54:53,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:54:53,232 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:54:53,232 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:54:53,232 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:54:53,233 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:54:53,233 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:54:53,233 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:54:53,233 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:54:53,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:54:53,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:54:53,236 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:54:53,236 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:54:53,236 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:54:53,236 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:54:53,236 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:54:53,236 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:54:53,237 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:54:53,237 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:54:53,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:54:53,237 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:54:53,237 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:54:53,238 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:54:53,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:54:53,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:54:53,238 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:54:53,238 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:54:53,239 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:54:53,239 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:54:53,239 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:54:53,239 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:54:53,239 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:54:53,239 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_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af0382669342cd1b96ae06a23957b47efa45a6d5fd31066fb67e67230764554c [2021-11-03 04:54:53,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:54:53,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:54:53,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:54:53,627 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:54:53,628 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:54:53,629 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i [2021-11-03 04:54:53,711 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/data/01b0d6616/b2904cdaab9b4229aa605dea9a472a91/FLAGd8e72fff0 [2021-11-03 04:54:54,869 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:54:54,870 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i [2021-11-03 04:54:54,933 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/data/01b0d6616/b2904cdaab9b4229aa605dea9a472a91/FLAGd8e72fff0 [2021-11-03 04:54:55,051 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/data/01b0d6616/b2904cdaab9b4229aa605dea9a472a91 [2021-11-03 04:54:55,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:54:55,057 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:54:55,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:54:55,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:54:55,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:54:55,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:54:55" (1/1) ... [2021-11-03 04:54:55,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e7a3b9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:54:55, skipping insertion in model container [2021-11-03 04:54:55,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:54:55" (1/1) ... [2021-11-03 04:54:55,074 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:54:55,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:55:01,625 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_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[582586,582599] [2021-11-03 04:55:01,629 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_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[582733,582746] [2021-11-03 04:55:01,634 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_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[582872,582885] [2021-11-03 04:55:01,635 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_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[583030,583043] [2021-11-03 04:55:01,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:55:01,769 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:55:01,920 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:55:02,498 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_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[582586,582599] [2021-11-03 04:55:02,498 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_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[582733,582746] [2021-11-03 04:55:02,499 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_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[582872,582885] [2021-11-03 04:55:02,499 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_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[583030,583043] [2021-11-03 04:55:02,506 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:55:02,537 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:55:03,515 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_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[582586,582599] [2021-11-03 04:55:03,515 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_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[582733,582746] [2021-11-03 04:55:03,517 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_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[582872,582885] [2021-11-03 04:55:03,521 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_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[583030,583043] [2021-11-03 04:55:03,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:55:03,939 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:55:03,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:55:03 WrapperNode [2021-11-03 04:55:03,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:55:03,941 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:55:03,944 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:55:03,944 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:55:03,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:55:03" (1/1) ... [2021-11-03 04:55:04,145 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:55:03" (1/1) ... [2021-11-03 04:55:08,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:55:08,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:55:08,404 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:55:08,404 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:55:08,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:55:03" (1/1) ... [2021-11-03 04:55:08,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:55:03" (1/1) ... [2021-11-03 04:55:09,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:55:03" (1/1) ... [2021-11-03 04:55:09,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:55:03" (1/1) ... [2021-11-03 04:55:11,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:55:03" (1/1) ... [2021-11-03 04:55:11,783 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:55:03" (1/1) ... [2021-11-03 04:55:11,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:55:03" (1/1) ... [2021-11-03 04:55:12,467 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:55:12,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:55:12,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:55:12,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:55:12,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:55:03" (1/1) ... [2021-11-03 04:55:12,476 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:55:12,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:55:12,505 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:55:12,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:55:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:55:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-03 04:55:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:55:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:55:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 04:55:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:55:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:55:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-03 04:55:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-03 04:55:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-03 04:55:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-03 04:55:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-03 04:55:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:55:12,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:55:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 04:55:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:55:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 04:55:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 04:55:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-03 04:55:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 04:55:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-03 04:55:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:55:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:55:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:55:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 04:55:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-03 04:55:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 04:55:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:55:12,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-03 04:55:12,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-03 04:55:12,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-03 04:55:12,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-03 05:05:24,945 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0bv32; [2021-11-03 05:05:24,945 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0bv32; [2021-11-03 05:05:24,946 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0bv32; [2021-11-03 05:05:24,946 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-03 05:05:24,946 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0bv32; [2021-11-03 05:05:24,947 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0bv32; [2021-11-03 05:05:24,947 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#5: ldv_switch_0_#res := 0bv32; [2021-11-03 05:05:24,947 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#6: ldv_switch_0_#res := 0bv32; [2021-11-03 05:05:24,947 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0bv32; [2021-11-03 05:05:24,947 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#7: ldv_switch_0_#res := 0bv32; [2021-11-03 05:05:24,947 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#8: ldv_switch_0_#res := 0bv32; [2021-11-03 05:05:24,948 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#2: ldv_switch_3_#res := 0bv32; [2021-11-03 05:05:24,948 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#3: ldv_switch_3_#res := 0bv32; [2021-11-03 05:05:24,949 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0bv32; [2021-11-03 05:05:24,952 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 05:05:24,952 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-03 05:05:24,958 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0bv32; [2021-11-03 05:05:25,088 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:05:25,088 INFO L299 CfgBuilder]: Removed 28543 assume(true) statements. [2021-11-03 05:05:25,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:05:25 BoogieIcfgContainer [2021-11-03 05:05:25,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:05:25,111 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:05:25,111 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:05:25,114 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:05:25,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:54:55" (1/3) ... [2021-11-03 05:05:25,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48f55ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:05:25, skipping insertion in model container [2021-11-03 05:05:25,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:55:03" (2/3) ... [2021-11-03 05:05:25,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48f55ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:05:25, skipping insertion in model container [2021-11-03 05:05:25,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:05:25" (3/3) ... [2021-11-03 05:05:25,117 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i [2021-11-03 05:05:25,122 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:05:25,122 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-03 05:05:25,253 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:05:25,258 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 [2021-11-03 05:05:25,258 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-03 05:05:25,529 INFO L276 IsEmpty]: Start isEmpty. Operand has 22711 states, 22707 states have (on average 1.2627824019024971) internal successors, (28674), 22710 states have internal predecessors, (28674), 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) [2021-11-03 05:05:25,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-03 05:05:25,554 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:05:25,555 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:05:25,556 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 05:05:25,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:05:25,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1426199353, now seen corresponding path program 1 times [2021-11-03 05:05:25,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:05:25,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1050471392] [2021-11-03 05:05:25,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:05:25,596 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:05:25,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:05:25,602 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:05:25,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:05:54,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:05:54,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 5060 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:05:55,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:05:55,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:05:55,689 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:05:56,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:05:56,197 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:05:56,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1050471392] [2021-11-03 05:05:56,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1050471392] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:05:56,198 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:05:56,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:05:56,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915036697] [2021-11-03 05:05:56,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:05:56,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:05:56,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:05:56,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:05:56,260 INFO L87 Difference]: Start difference. First operand has 22711 states, 22707 states have (on average 1.2627824019024971) internal successors, (28674), 22710 states have internal predecessors, (28674), 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) Second operand has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 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) [2021-11-03 05:06:02,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:06:02,205 INFO L93 Difference]: Finished difference Result 88181 states and 111022 transitions. [2021-11-03 05:06:02,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:06:02,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 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) Word has length 193 [2021-11-03 05:06:02,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:06:02,531 INFO L225 Difference]: With dead ends: 88181 [2021-11-03 05:06:02,532 INFO L226 Difference]: Without dead ends: 65079 [2021-11-03 05:06:02,589 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 382 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:06:02,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65079 states. [2021-11-03 05:06:04,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65079 to 65075. [2021-11-03 05:06:04,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65075 states, 65071 states have (on average 1.2291343301931736) internal successors, (79981), 65074 states have internal predecessors, (79981), 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) [2021-11-03 05:06:05,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65075 states to 65075 states and 79981 transitions. [2021-11-03 05:06:05,115 INFO L78 Accepts]: Start accepts. Automaton has 65075 states and 79981 transitions. Word has length 193 [2021-11-03 05:06:05,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:06:05,120 INFO L470 AbstractCegarLoop]: Abstraction has 65075 states and 79981 transitions. [2021-11-03 05:06:05,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 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) [2021-11-03 05:06:05,122 INFO L276 IsEmpty]: Start isEmpty. Operand 65075 states and 79981 transitions. [2021-11-03 05:06:05,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-11-03 05:06:05,138 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:06:05,139 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:06:05,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:06:05,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:06:05,360 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 05:06:05,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:06:05,361 INFO L85 PathProgramCache]: Analyzing trace with hash -568527768, now seen corresponding path program 1 times [2021-11-03 05:06:05,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:06:05,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348442918] [2021-11-03 05:06:05,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:06:05,375 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:06:05,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:06:05,376 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:06:05,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:06:34,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:06:35,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 5089 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:06:35,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:06:35,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:06:35,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:06:36,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:06:36,594 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:06:36,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [348442918] [2021-11-03 05:06:36,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [348442918] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:06:36,594 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:06:36,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:06:36,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169475372] [2021-11-03 05:06:36,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:06:36,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:06:36,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:06:36,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:06:36,606 INFO L87 Difference]: Start difference. First operand 65075 states and 79981 transitions. Second operand has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 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) [2021-11-03 05:06:42,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:06:42,756 INFO L93 Difference]: Finished difference Result 137565 states and 169614 transitions. [2021-11-03 05:06:42,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:06:42,756 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 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) Word has length 215 [2021-11-03 05:06:42,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:06:42,959 INFO L225 Difference]: With dead ends: 137565 [2021-11-03 05:06:42,959 INFO L226 Difference]: Without dead ends: 72958 [2021-11-03 05:06:43,069 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 426 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:06:43,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72958 states. [2021-11-03 05:06:45,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72958 to 72914. [2021-11-03 05:06:45,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72914 states, 72910 states have (on average 1.2353175147442053) internal successors, (90067), 72913 states have internal predecessors, (90067), 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) [2021-11-03 05:06:45,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72914 states to 72914 states and 90067 transitions. [2021-11-03 05:06:45,937 INFO L78 Accepts]: Start accepts. Automaton has 72914 states and 90067 transitions. Word has length 215 [2021-11-03 05:06:45,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:06:45,939 INFO L470 AbstractCegarLoop]: Abstraction has 72914 states and 90067 transitions. [2021-11-03 05:06:45,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 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) [2021-11-03 05:06:45,944 INFO L276 IsEmpty]: Start isEmpty. Operand 72914 states and 90067 transitions. [2021-11-03 05:06:45,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-11-03 05:06:45,954 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:06:45,954 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-03 05:06:46,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-03 05:06:46,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:06:46,168 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 05:06:46,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:06:46,169 INFO L85 PathProgramCache]: Analyzing trace with hash -691670711, now seen corresponding path program 1 times [2021-11-03 05:06:46,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:06:46,177 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2053543004] [2021-11-03 05:06:46,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:06:46,177 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:06:46,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:06:46,178 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:06:46,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:07:14,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:07:15,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 5072 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:07:15,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:07:17,572 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:07:17,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:07:20,079 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:07:20,079 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:07:20,079 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2053543004] [2021-11-03 05:07:20,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2053543004] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:07:20,080 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:07:20,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-03 05:07:20,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609188468] [2021-11-03 05:07:20,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:07:20,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:07:20,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:07:20,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:07:20,083 INFO L87 Difference]: Start difference. First operand 72914 states and 90067 transitions. Second operand has 4 states, 4 states have (on average 103.0) internal successors, (412), 3 states have internal predecessors, (412), 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) [2021-11-03 05:07:22,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:07:22,125 INFO L93 Difference]: Finished difference Result 139516 states and 172339 transitions. [2021-11-03 05:07:22,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:07:22,125 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 103.0) internal successors, (412), 3 states have internal predecessors, (412), 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) Word has length 218 [2021-11-03 05:07:22,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:07:22,265 INFO L225 Difference]: With dead ends: 139516 [2021-11-03 05:07:22,265 INFO L226 Difference]: Without dead ends: 72914 [2021-11-03 05:07:22,374 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:07:22,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72914 states. [2021-11-03 05:07:24,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72914 to 72914. [2021-11-03 05:07:25,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72914 states, 72910 states have (on average 1.2352215059662597) internal successors, (90060), 72913 states have internal predecessors, (90060), 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) [2021-11-03 05:07:25,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72914 states to 72914 states and 90060 transitions. [2021-11-03 05:07:25,157 INFO L78 Accepts]: Start accepts. Automaton has 72914 states and 90060 transitions. Word has length 218 [2021-11-03 05:07:25,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:07:25,158 INFO L470 AbstractCegarLoop]: Abstraction has 72914 states and 90060 transitions. [2021-11-03 05:07:25,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 103.0) internal successors, (412), 3 states have internal predecessors, (412), 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) [2021-11-03 05:07:25,159 INFO L276 IsEmpty]: Start isEmpty. Operand 72914 states and 90060 transitions. [2021-11-03 05:07:25,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-11-03 05:07:25,169 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:07:25,170 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-03 05:07:25,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-03 05:07:25,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:07:25,384 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 05:07:25,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:07:25,385 INFO L85 PathProgramCache]: Analyzing trace with hash 106311239, now seen corresponding path program 1 times [2021-11-03 05:07:25,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:07:25,394 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [532148665] [2021-11-03 05:07:25,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:07:25,394 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:07:25,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:07:25,396 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:07:25,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_badf0578-c8cf-4f47-ba06-c2fa1fe66c09/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process