./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs --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 189c9c1835fba5722e0b94d8232e079a97aae7f53f40713e9106571ffb9cd9c4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:46:47,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:46:47,282 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:46:47,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:46:47,328 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:46:47,330 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:46:47,332 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:46:47,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:46:47,338 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:46:47,339 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:46:47,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:46:47,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:46:47,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:46:47,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:46:47,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:46:47,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:46:47,351 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:46:47,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:46:47,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:46:47,358 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:46:47,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:46:47,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:46:47,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:46:47,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:46:47,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:46:47,382 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:46:47,383 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:46:47,384 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:46:47,389 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:46:47,390 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:46:47,391 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:46:47,393 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:46:47,394 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:46:47,397 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:46:47,398 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:46:47,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:46:47,400 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:46:47,400 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:46:47,400 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:46:47,402 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:46:47,403 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:46:47,404 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 15:46:47,460 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:46:47,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:46:47,462 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:46:47,462 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:46:47,463 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:46:47,463 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:46:47,463 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:46:47,464 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 15:46:47,471 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:46:47,471 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:46:47,472 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 15:46:47,473 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 15:46:47,473 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:46:47,473 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 15:46:47,474 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 15:46:47,474 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 15:46:47,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:46:47,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 15:46:47,475 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:46:47,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:46:47,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:46:47,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:46:47,476 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:46:47,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:46:47,477 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:46:47,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:46:47,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:46:47,478 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:46:47,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:46:47,480 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:46:47,480 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:46:47,480 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:46:47,481 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 15:46:47,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 15:46:47,481 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:46:47,482 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:46:47,482 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:46:47,482 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_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 189c9c1835fba5722e0b94d8232e079a97aae7f53f40713e9106571ffb9cd9c4 [2021-11-19 15:46:47,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:46:47,910 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:46:47,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:46:47,916 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:46:47,916 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:46:47,917 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2021-11-19 15:46:47,990 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/data/ae54f9779/146503dac1dd480497023130b54c0ea5/FLAG9ab6e800a [2021-11-19 15:46:49,149 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:46:49,150 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2021-11-19 15:46:49,223 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/data/ae54f9779/146503dac1dd480497023130b54c0ea5/FLAG9ab6e800a [2021-11-19 15:46:49,441 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/data/ae54f9779/146503dac1dd480497023130b54c0ea5 [2021-11-19 15:46:49,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:46:49,445 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:46:49,448 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:46:49,448 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:46:49,451 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:46:49,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:46:49" (1/1) ... [2021-11-19 15:46:49,454 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78fa8f22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:49, skipping insertion in model container [2021-11-19 15:46:49,454 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:46:49" (1/1) ... [2021-11-19 15:46:49,464 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:46:49,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:46:52,742 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:46:52,768 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:46:52,769 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:46:53,190 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:46:53,346 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:46:53,356 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:46:54,949 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484314,484327] [2021-11-19 15:46:54,954 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484461,484474] [2021-11-19 15:46:54,955 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484600,484613] [2021-11-19 15:46:54,955 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484758,484771] [2021-11-19 15:46:54,994 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:46:55,072 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) [2021-11-19 15:46:55,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@78140368 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:55, skipping insertion in model container [2021-11-19 15:46:55,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:46:55,074 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 15:46:55,076 INFO L158 Benchmark]: Toolchain (without parser) took 5629.60ms. Allocated memory was 104.9MB in the beginning and 178.3MB in the end (delta: 73.4MB). Free memory was 65.6MB in the beginning and 107.3MB in the end (delta: -41.7MB). Peak memory consumption was 60.4MB. Max. memory is 16.1GB. [2021-11-19 15:46:55,077 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 104.9MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 15:46:55,079 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5625.69ms. Allocated memory was 104.9MB in the beginning and 178.3MB in the end (delta: 73.4MB). Free memory was 65.4MB in the beginning and 107.3MB in the end (delta: -42.0MB). Peak memory consumption was 60.4MB. Max. memory is 16.1GB. [2021-11-19 15:46:55,081 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 104.9MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5625.69ms. Allocated memory was 104.9MB in the beginning and 178.3MB in the end (delta: 73.4MB). Free memory was 65.4MB in the beginning and 107.3MB in the end (delta: -42.0MB). Peak memory consumption was 60.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7091]: 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_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs --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 189c9c1835fba5722e0b94d8232e079a97aae7f53f40713e9106571ffb9cd9c4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:46:57,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:46:57,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:46:57,728 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:46:57,729 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:46:57,731 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:46:57,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:46:57,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:46:57,740 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:46:57,741 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:46:57,743 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:46:57,746 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:46:57,746 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:46:57,748 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:46:57,751 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:46:57,753 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:46:57,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:46:57,757 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:46:57,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:46:57,764 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:46:57,767 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:46:57,777 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:46:57,779 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:46:57,784 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:46:57,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:46:57,792 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:46:57,793 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:46:57,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:46:57,799 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:46:57,801 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:46:57,802 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:46:57,803 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:46:57,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:46:57,808 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:46:57,810 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:46:57,811 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:46:57,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:46:57,812 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:46:57,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:46:57,815 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:46:57,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:46:57,817 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 15:46:57,877 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:46:57,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:46:57,880 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:46:57,880 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:46:57,881 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:46:57,881 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:46:57,881 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:46:57,881 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:46:57,883 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:46:57,883 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:46:57,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:46:57,886 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:46:57,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:46:57,887 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:46:57,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:46:57,887 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:46:57,888 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 15:46:57,888 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 15:46:57,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:46:57,889 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:46:57,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:46:57,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:46:57,889 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 15:46:57,890 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:46:57,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:46:57,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:46:57,891 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:46:57,891 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:46:57,891 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 15:46:57,891 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 15:46:57,892 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:46:57,892 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:46:57,892 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:46:57,892 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_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 189c9c1835fba5722e0b94d8232e079a97aae7f53f40713e9106571ffb9cd9c4 [2021-11-19 15:46:58,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:46:58,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:46:58,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:46:58,380 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:46:58,381 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:46:58,383 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2021-11-19 15:46:58,465 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/data/b955a840f/35b2ba98e16843a18f82c461db807488/FLAG721306aaa [2021-11-19 15:46:59,647 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:46:59,648 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2021-11-19 15:46:59,775 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/data/b955a840f/35b2ba98e16843a18f82c461db807488/FLAG721306aaa [2021-11-19 15:46:59,944 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/data/b955a840f/35b2ba98e16843a18f82c461db807488 [2021-11-19 15:46:59,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:46:59,953 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:46:59,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:46:59,956 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:46:59,960 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:46:59,961 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:46:59" (1/1) ... [2021-11-19 15:46:59,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e617263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:59, skipping insertion in model container [2021-11-19 15:46:59,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:46:59" (1/1) ... [2021-11-19 15:46:59,973 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:47:00,221 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:47:06,043 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484314,484327] [2021-11-19 15:47:06,046 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484461,484474] [2021-11-19 15:47:06,047 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484600,484613] [2021-11-19 15:47:06,048 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484758,484771] [2021-11-19 15:47:06,080 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:47:06,182 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 15:47:06,271 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:47:06,994 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484314,484327] [2021-11-19 15:47:06,995 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484461,484474] [2021-11-19 15:47:06,996 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484600,484613] [2021-11-19 15:47:06,996 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484758,484771] [2021-11-19 15:47:07,014 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:47:07,073 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 15:47:07,787 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484314,484327] [2021-11-19 15:47:07,788 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484461,484474] [2021-11-19 15:47:07,789 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484600,484613] [2021-11-19 15:47:07,794 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484758,484771] [2021-11-19 15:47:07,807 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:47:08,219 INFO L208 MainTranslator]: Completed translation [2021-11-19 15:47:08,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:47:08 WrapperNode [2021-11-19 15:47:08,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:47:08,224 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 15:47:08,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 15:47:08,225 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 15:47:08,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:47:08" (1/1) ... [2021-11-19 15:47:08,414 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:47:08" (1/1) ... [2021-11-19 15:47:08,783 INFO L137 Inliner]: procedures = 596, calls = 3848, calls flagged for inlining = 356, calls inlined = 344, statements flattened = 9932 [2021-11-19 15:47:08,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 15:47:08,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 15:47:08,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 15:47:08,787 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 15:47:08,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:47:08" (1/1) ... [2021-11-19 15:47:08,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:47:08" (1/1) ... [2021-11-19 15:47:08,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:47:08" (1/1) ... [2021-11-19 15:47:08,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:47:08" (1/1) ... [2021-11-19 15:47:09,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:47:08" (1/1) ... [2021-11-19 15:47:09,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:47:08" (1/1) ... [2021-11-19 15:47:09,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:47:08" (1/1) ... [2021-11-19 15:47:09,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 15:47:09,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 15:47:09,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 15:47:09,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 15:47:09,517 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:47:08" (1/1) ... [2021-11-19 15:47:09,526 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:47:09,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:47:09,557 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 15:47:09,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 15:47:09,628 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-19 15:47:09,628 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-19 15:47:09,628 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-11-19 15:47:09,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-11-19 15:47:09,628 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_core [2021-11-19 15:47:09,629 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_core [2021-11-19 15:47:09,629 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2021-11-19 15:47:09,629 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2021-11-19 15:47:09,629 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_post_phy_linkchg [2021-11-19 15:47:09,629 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_post_phy_linkchg [2021-11-19 15:47:09,629 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-19 15:47:09,629 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-19 15:47:09,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 15:47:09,630 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 15:47:09,630 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-19 15:47:09,630 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-19 15:47:09,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 15:47:09,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 15:47:09,631 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_rx_ring [2021-11-19 15:47:09,631 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_rx_ring [2021-11-19 15:47:09,631 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-11-19 15:47:09,631 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-11-19 15:47:09,631 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-19 15:47:09,631 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-19 15:47:09,631 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-19 15:47:09,632 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-19 15:47:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-19 15:47:09,632 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-19 15:47:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_current_addr [2021-11-19 15:47:09,633 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_current_addr [2021-11-19 15:47:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-19 15:47:09,633 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-19 15:47:09,634 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 15:47:09,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 15:47:09,634 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_mac [2021-11-19 15:47:09,634 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_mac [2021-11-19 15:47:09,634 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_irq_disable [2021-11-19 15:47:09,634 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_irq_disable [2021-11-19 15:47:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_stop_phy_polling [2021-11-19 15:47:09,635 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_stop_phy_polling [2021-11-19 15:47:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-19 15:47:09,636 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-19 15:47:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 15:47:09,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 15:47:09,637 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-19 15:47:09,637 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-19 15:47:09,638 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-19 15:47:09,638 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-19 15:47:09,638 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-19 15:47:09,638 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-19 15:47:09,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 15:47:09,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 15:47:09,639 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-11-19 15:47:09,639 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-11-19 15:47:09,639 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-19 15:47:09,640 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-19 15:47:09,640 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-19 15:47:09,640 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-19 15:47:09,640 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-19 15:47:09,641 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-19 15:47:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 15:47:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-19 15:47:09,641 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-19 15:47:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_speed_and_duplex [2021-11-19 15:47:09,642 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_speed_and_duplex [2021-11-19 15:47:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 15:47:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 15:47:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 15:47:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 15:47:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-19 15:47:09,643 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-19 15:47:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_close [2021-11-19 15:47:09,643 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_close [2021-11-19 15:47:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 15:47:09,644 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 15:47:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-19 15:47:09,645 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-19 15:47:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_reg [2021-11-19 15:47:09,645 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_reg [2021-11-19 15:47:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_init [2021-11-19 15:47:09,646 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_init [2021-11-19 15:47:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_dbg [2021-11-19 15:47:09,647 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_dbg [2021-11-19 15:47:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_regs_len [2021-11-19 15:47:09,647 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_regs_len [2021-11-19 15:47:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 15:47:09,648 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 15:47:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-19 15:47:09,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-19 15:47:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_free_ring_resources [2021-11-19 15:47:09,648 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_free_ring_resources [2021-11-19 15:47:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 15:47:09,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 15:47:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-19 15:47:09,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-19 15:47:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-19 15:47:09,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-19 15:47:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 15:47:09,650 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 15:47:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-19 15:47:09,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-19 15:47:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-19 15:47:09,652 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-19 15:47:09,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 15:47:09,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 15:47:09,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 15:47:09,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 15:47:09,657 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-19 15:47:09,658 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-19 15:47:09,659 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_multi [2021-11-19 15:47:09,660 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_multi [2021-11-19 15:47:09,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 15:47:09,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 15:47:09,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 15:47:09,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 15:47:09,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 15:47:09,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-19 15:47:09,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-19 15:47:09,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-19 15:47:09,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-19 15:47:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 15:47:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-19 15:47:09,668 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-19 15:47:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 15:47:09,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 15:47:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 15:47:09,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 15:47:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 15:47:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_start_phy_polling [2021-11-19 15:47:09,669 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_start_phy_polling [2021-11-19 15:47:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-11-19 15:47:09,669 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-11-19 15:47:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-19 15:47:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 15:47:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 15:47:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 15:47:09,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 15:47:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 15:47:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-19 15:47:09,670 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-19 15:47:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2021-11-19 15:47:09,670 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2021-11-19 15:47:09,671 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-19 15:47:09,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-19 15:47:09,671 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_core [2021-11-19 15:47:09,671 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_core [2021-11-19 15:47:09,671 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_wait_until_idle [2021-11-19 15:47:09,671 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_wait_until_idle [2021-11-19 15:47:09,671 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-19 15:47:09,672 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-19 15:47:09,672 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 15:47:09,672 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 15:47:09,672 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_check_link_status [2021-11-19 15:47:09,672 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_check_link_status [2021-11-19 15:47:09,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-19 15:47:09,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-19 15:47:09,673 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_alloc_rx_buffer [2021-11-19 15:47:09,673 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_alloc_rx_buffer [2021-11-19 15:47:09,673 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_io_resume [2021-11-19 15:47:09,674 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_io_resume [2021-11-19 15:47:09,674 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_dbg [2021-11-19 15:47:09,674 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_dbg [2021-11-19 15:47:09,674 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_wait_mdio_idle [2021-11-19 15:47:09,674 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_wait_mdio_idle [2021-11-19 15:47:09,674 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-19 15:47:09,675 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-19 15:47:09,675 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-19 15:47:09,675 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-19 15:47:09,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 15:47:09,675 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_vlan_mode [2021-11-19 15:47:09,676 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_vlan_mode [2021-11-19 15:47:09,676 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_tx_buffer [2021-11-19 15:47:09,676 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_tx_buffer [2021-11-19 15:47:09,676 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2021-11-19 15:47:09,676 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2021-11-19 15:47:09,676 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_down [2021-11-19 15:47:09,677 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_down [2021-11-19 15:47:09,677 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_suspend [2021-11-19 15:47:09,677 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_suspend [2021-11-19 15:47:09,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 15:47:09,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 15:47:09,678 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-19 15:47:09,678 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-19 15:47:09,678 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-19 15:47:09,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-19 15:47:09,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 15:47:09,679 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-19 15:47:09,679 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-19 15:47:09,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 15:47:09,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 15:47:09,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 15:47:09,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 15:47:09,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 15:47:09,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 15:47:09,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 15:47:09,680 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-19 15:47:09,680 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-19 15:47:09,681 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_tx_timeout [2021-11-19 15:47:09,681 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_tx_timeout [2021-11-19 15:47:09,681 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-19 15:47:09,681 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-19 15:47:09,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-19 15:47:09,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-19 15:47:09,682 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_tpd [2021-11-19 15:47:09,682 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_tpd [2021-11-19 15:47:09,682 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_hw_set_mac_addr [2021-11-19 15:47:09,682 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_hw_set_mac_addr [2021-11-19 15:47:09,682 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-19 15:47:09,683 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-19 15:47:09,683 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-19 15:47:09,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-19 15:47:09,683 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-19 15:47:09,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-19 15:47:09,684 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_restart_autoneg [2021-11-19 15:47:09,684 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_restart_autoneg [2021-11-19 15:47:09,684 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_rxbufsize [2021-11-19 15:47:09,684 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_rxbufsize [2021-11-19 15:47:09,684 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-19 15:47:09,684 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-19 15:47:09,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 15:47:09,685 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 15:47:09,685 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_free_irq [2021-11-19 15:47:09,685 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_free_irq [2021-11-19 15:47:09,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-19 15:47:09,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-19 15:47:09,686 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_ext [2021-11-19 15:47:09,686 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_ext [2021-11-19 15:47:09,686 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-19 15:47:09,686 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-19 15:47:09,686 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-19 15:47:09,687 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-19 15:47:09,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 15:47:09,687 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-11-19 15:47:09,687 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-11-19 15:47:09,687 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-19 15:47:09,688 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-19 15:47:09,688 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_nway_reset [2021-11-19 15:47:09,688 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_nway_reset [2021-11-19 15:47:09,688 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_dma_ring [2021-11-19 15:47:09,688 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_dma_ring [2021-11-19 15:47:09,689 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-19 15:47:09,689 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-19 15:47:09,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2021-11-19 15:47:09,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2021-11-19 15:47:09,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 15:47:09,689 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_irq_enable [2021-11-19 15:47:09,690 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_irq_enable [2021-11-19 15:47:09,690 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-19 15:47:09,690 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-19 15:47:09,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 15:47:09,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 15:47:09,690 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_eeprom_len [2021-11-19 15:47:09,690 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_eeprom_len [2021-11-19 15:47:09,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 15:47:09,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 15:47:09,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 15:47:09,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-19 15:47:09,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-19 15:47:09,691 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_check_eeprom_exist [2021-11-19 15:47:09,691 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_check_eeprom_exist [2021-11-19 15:47:09,691 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-19 15:47:09,691 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-19 15:47:09,691 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-19 15:47:09,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-19 15:47:09,692 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-19 15:47:09,692 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-19 15:47:09,692 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_netpoll [2021-11-19 15:47:09,692 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_netpoll [2021-11-19 15:47:09,692 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 15:47:09,692 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 15:47:09,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 15:47:09,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 15:47:09,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-19 15:47:09,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-19 15:47:09,693 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_configure [2021-11-19 15:47:09,693 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_configure [2021-11-19 15:47:09,693 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2021-11-19 15:47:09,693 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2021-11-19 15:47:09,693 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_tx_ring [2021-11-19 15:47:09,693 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_tx_ring [2021-11-19 15:47:09,693 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_reset [2021-11-19 15:47:09,693 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_reset [2021-11-19 15:47:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_open [2021-11-19 15:47:09,694 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_open [2021-11-19 15:47:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-19 15:47:09,694 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-19 15:47:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 15:47:09,694 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 15:47:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_atl1c_driver_exit_16_2 [2021-11-19 15:47:09,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_atl1c_driver_exit_16_2 [2021-11-19 15:47:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-19 15:47:09,695 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-19 15:47:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-11-19 15:47:09,695 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-11-19 15:47:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 15:47:09,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 15:47:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_intr [2021-11-19 15:47:09,695 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_intr [2021-11-19 15:47:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-19 15:47:09,695 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-19 15:47:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_power_saving [2021-11-19 15:47:09,696 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_power_saving [2021-11-19 15:47:09,696 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_setup_adv [2021-11-19 15:47:09,696 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_setup_adv [2021-11-19 15:47:09,696 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-19 15:47:09,696 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-19 15:47:09,696 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 15:47:09,696 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 15:47:09,696 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_buffer [2021-11-19 15:47:09,696 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_buffer [2021-11-19 15:47:09,697 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_remove [2021-11-19 15:47:09,697 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_remove [2021-11-19 15:47:09,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 15:47:09,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 15:47:09,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 15:47:09,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 15:47:09,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 15:47:09,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 15:47:09,698 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-19 15:47:09,698 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-19 15:47:09,698 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-19 15:47:09,698 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-19 15:47:09,699 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_up [2021-11-19 15:47:09,699 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_up [2021-11-19 15:47:09,699 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-19 15:47:09,699 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-19 15:47:09,699 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_disable_l0s_l1 [2021-11-19 15:47:09,699 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_disable_l0s_l1 [2021-11-19 15:47:09,700 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_resume [2021-11-19 15:47:09,700 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_resume [2021-11-19 15:47:09,700 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2021-11-19 15:47:09,700 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2021-11-19 15:47:09,700 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_pcie [2021-11-19 15:47:09,700 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_pcie [2021-11-19 15:47:09,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 15:47:09,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 15:47:09,701 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-19 15:47:09,701 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-19 15:47:09,701 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_shutdown [2021-11-19 15:47:09,702 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_shutdown [2021-11-19 15:47:09,702 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_aspm [2021-11-19 15:47:09,702 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_aspm [2021-11-19 15:47:09,702 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2021-11-19 15:47:09,702 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2021-11-19 15:47:09,702 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-19 15:47:09,703 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-19 15:47:09,703 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-19 15:47:09,703 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-19 15:47:09,703 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-19 15:47:09,787 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-19 15:47:09,788 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_reg [2021-11-19 15:47:09,788 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_reg [2021-11-19 15:47:09,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 15:47:09,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 15:47:11,306 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 15:47:11,312 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 15:47:12,393 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 15:48:19,517 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 15:48:23,658 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 15:48:23,708 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 15:48:23,708 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 15:48:23,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:48:23 BoogieIcfgContainer [2021-11-19 15:48:23,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 15:48:23,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 15:48:23,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 15:48:23,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 15:48:23,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:46:59" (1/3) ... [2021-11-19 15:48:23,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731e1ffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:48:23, skipping insertion in model container [2021-11-19 15:48:23,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:47:08" (2/3) ... [2021-11-19 15:48:23,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731e1ffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:48:23, skipping insertion in model container [2021-11-19 15:48:23,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:48:23" (3/3) ... [2021-11-19 15:48:23,732 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2021-11-19 15:48:23,740 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 15:48:23,740 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-19 15:48:23,849 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:48:23,856 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 [2021-11-19 15:48:23,857 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-19 15:48:23,982 INFO L276 IsEmpty]: Start isEmpty. Operand has 4049 states, 2766 states have (on average 1.2657266811279826) internal successors, (3501), 2805 states have internal predecessors, (3501), 1121 states have call successors, (1121), 161 states have call predecessors, (1121), 160 states have return successors, (1112), 1103 states have call predecessors, (1112), 1112 states have call successors, (1112) [2021-11-19 15:48:24,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2021-11-19 15:48:24,012 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:48:24,013 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:48:24,014 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:48:24,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:48:24,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1574313908, now seen corresponding path program 1 times [2021-11-19 15:48:24,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:48:24,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [376188898] [2021-11-19 15:48:24,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:48:24,052 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:48:24,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:48:24,060 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:48:24,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 15:48:26,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:48:26,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 1715 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:48:26,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:48:27,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 1224 trivial. 0 not checked. [2021-11-19 15:48:27,982 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:48:28,900 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1275 trivial. 0 not checked. [2021-11-19 15:48:28,901 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:48:28,901 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [376188898] [2021-11-19 15:48:28,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [376188898] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:48:28,907 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:48:28,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:48:28,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460284573] [2021-11-19 15:48:28,914 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:48:28,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:48:28,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:48:28,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:48:28,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:48:28,993 INFO L87 Difference]: Start difference. First operand has 4049 states, 2766 states have (on average 1.2657266811279826) internal successors, (3501), 2805 states have internal predecessors, (3501), 1121 states have call successors, (1121), 161 states have call predecessors, (1121), 160 states have return successors, (1112), 1103 states have call predecessors, (1112), 1112 states have call successors, (1112) Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 4 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2021-11-19 15:48:31,279 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:48:51,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:48:51,012 INFO L93 Difference]: Finished difference Result 15900 states and 22795 transitions. [2021-11-19 15:48:51,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:48:51,015 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 4 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 216 [2021-11-19 15:48:51,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:48:51,190 INFO L225 Difference]: With dead ends: 15900 [2021-11-19 15:48:51,190 INFO L226 Difference]: Without dead ends: 11862 [2021-11-19 15:48:51,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 428 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:48:51,252 INFO L933 BasicCegarLoop]: 7872 mSDtfsCounter, 11206 mSDsluCounter, 14511 mSDsCounter, 0 mSdLazyCounter, 2280 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11206 SdHoareTripleChecker+Valid, 22383 SdHoareTripleChecker+Invalid, 2307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2280 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2021-11-19 15:48:51,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11206 Valid, 22383 Invalid, 2307 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [26 Valid, 2280 Invalid, 1 Unknown, 0 Unchecked, 20.9s Time] [2021-11-19 15:48:51,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11862 states. [2021-11-19 15:48:52,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11862 to 11854. [2021-11-19 15:48:52,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11854 states, 8119 states have (on average 1.2609927330952089) internal successors, (10238), 8233 states have internal predecessors, (10238), 3258 states have call successors, (3258), 476 states have call predecessors, (3258), 475 states have return successors, (3255), 3228 states have call predecessors, (3255), 3255 states have call successors, (3255) [2021-11-19 15:48:52,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11854 states to 11854 states and 16751 transitions. [2021-11-19 15:48:52,896 INFO L78 Accepts]: Start accepts. Automaton has 11854 states and 16751 transitions. Word has length 216 [2021-11-19 15:48:52,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:48:52,901 INFO L470 AbstractCegarLoop]: Abstraction has 11854 states and 16751 transitions. [2021-11-19 15:48:52,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 4 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2021-11-19 15:48:52,902 INFO L276 IsEmpty]: Start isEmpty. Operand 11854 states and 16751 transitions. [2021-11-19 15:48:52,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-19 15:48:52,920 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:48:52,921 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:48:52,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 15:48:53,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:48:53,144 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:48:53,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:48:53,145 INFO L85 PathProgramCache]: Analyzing trace with hash 874449462, now seen corresponding path program 1 times [2021-11-19 15:48:53,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:48:53,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [502733283] [2021-11-19 15:48:53,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:48:53,147 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:48:53,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:48:53,150 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:48:53,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 15:48:55,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:48:55,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 1785 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:48:55,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:48:56,543 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 1224 trivial. 0 not checked. [2021-11-19 15:48:56,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:48:57,475 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1275 trivial. 0 not checked. [2021-11-19 15:48:57,475 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:48:57,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [502733283] [2021-11-19 15:48:57,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [502733283] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:48:57,476 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:48:57,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:48:57,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864997736] [2021-11-19 15:48:57,476 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:48:57,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:48:57,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:48:57,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:48:57,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:48:57,481 INFO L87 Difference]: Start difference. First operand 11854 states and 16751 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 4 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2021-11-19 15:48:59,665 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:49:21,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:49:21,874 INFO L93 Difference]: Finished difference Result 37263 states and 52527 transitions. [2021-11-19 15:49:21,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:49:21,875 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 4 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 234 [2021-11-19 15:49:21,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:49:22,133 INFO L225 Difference]: With dead ends: 37263 [2021-11-19 15:49:22,134 INFO L226 Difference]: Without dead ends: 25448 [2021-11-19 15:49:22,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 464 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:49:22,244 INFO L933 BasicCegarLoop]: 7760 mSDtfsCounter, 12991 mSDsluCounter, 8527 mSDsCounter, 0 mSdLazyCounter, 2125 mSolverCounterSat, 1914 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12991 SdHoareTripleChecker+Valid, 16287 SdHoareTripleChecker+Invalid, 4040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1914 IncrementalHoareTripleChecker+Valid, 2125 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.3s IncrementalHoareTripleChecker+Time [2021-11-19 15:49:22,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12991 Valid, 16287 Invalid, 4040 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1914 Valid, 2125 Invalid, 1 Unknown, 0 Unchecked, 23.3s Time] [2021-11-19 15:49:22,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25448 states. [2021-11-19 15:49:24,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25448 to 25430. [2021-11-19 15:49:24,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25430 states, 17438 states have (on average 1.2588026149787819) internal successors, (21951), 17673 states have internal predecessors, (21951), 6910 states have call successors, (6910), 1083 states have call predecessors, (6910), 1080 states have return successors, (6907), 6839 states have call predecessors, (6907), 6907 states have call successors, (6907) [2021-11-19 15:49:25,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25430 states to 25430 states and 35768 transitions. [2021-11-19 15:49:25,027 INFO L78 Accepts]: Start accepts. Automaton has 25430 states and 35768 transitions. Word has length 234 [2021-11-19 15:49:25,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:49:25,030 INFO L470 AbstractCegarLoop]: Abstraction has 25430 states and 35768 transitions. [2021-11-19 15:49:25,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 4 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2021-11-19 15:49:25,030 INFO L276 IsEmpty]: Start isEmpty. Operand 25430 states and 35768 transitions. [2021-11-19 15:49:25,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-11-19 15:49:25,041 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:49:25,042 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 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] [2021-11-19 15:49:25,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 15:49:25,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:49:25,268 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:49:25,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:49:25,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1292582893, now seen corresponding path program 1 times [2021-11-19 15:49:25,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:49:25,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [794771445] [2021-11-19 15:49:25,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:49:25,272 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:49:25,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:49:25,274 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:49:25,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 15:49:27,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:49:28,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 1776 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:49:28,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:49:28,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1279 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 1228 trivial. 0 not checked. [2021-11-19 15:49:28,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:49:29,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1279 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1279 trivial. 0 not checked. [2021-11-19 15:49:29,650 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:49:29,650 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [794771445] [2021-11-19 15:49:29,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [794771445] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:49:29,792 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:49:29,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 15:49:29,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417247574] [2021-11-19 15:49:29,793 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:49:29,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:49:29,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:49:29,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:49:29,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:49:29,795 INFO L87 Difference]: Start difference. First operand 25430 states and 35768 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-19 15:49:32,042 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:49:34,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:49:34,079 INFO L93 Difference]: Finished difference Result 72223 states and 101606 transitions. [2021-11-19 15:49:34,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:49:34,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 248 [2021-11-19 15:49:34,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:49:34,466 INFO L225 Difference]: With dead ends: 72223 [2021-11-19 15:49:34,466 INFO L226 Difference]: Without dead ends: 46832 [2021-11-19 15:49:34,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 493 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:49:34,630 INFO L933 BasicCegarLoop]: 6764 mSDtfsCounter, 5501 mSDsluCounter, 5639 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5501 SdHoareTripleChecker+Valid, 12403 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-19 15:49:34,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5501 Valid, 12403 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2021-11-19 15:49:34,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46832 states. [2021-11-19 15:49:38,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46832 to 46817. [2021-11-19 15:49:38,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46817 states, 32110 states have (on average 1.2575521644347556) internal successors, (40380), 32556 states have internal predecessors, (40380), 12717 states have call successors, (12717), 1993 states have call predecessors, (12717), 1988 states have return successors, (12714), 12577 states have call predecessors, (12714), 12714 states have call successors, (12714) [2021-11-19 15:49:39,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46817 states to 46817 states and 65811 transitions. [2021-11-19 15:49:39,380 INFO L78 Accepts]: Start accepts. Automaton has 46817 states and 65811 transitions. Word has length 248 [2021-11-19 15:49:39,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:49:39,381 INFO L470 AbstractCegarLoop]: Abstraction has 46817 states and 65811 transitions. [2021-11-19 15:49:39,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-19 15:49:39,382 INFO L276 IsEmpty]: Start isEmpty. Operand 46817 states and 65811 transitions. [2021-11-19 15:49:39,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2021-11-19 15:49:39,405 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:49:39,405 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 4, 4, 4, 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] [2021-11-19 15:49:39,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 15:49:39,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:49:39,628 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:49:39,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:49:39,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1553606092, now seen corresponding path program 1 times [2021-11-19 15:49:39,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:49:39,631 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [870333802] [2021-11-19 15:49:39,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:49:39,792 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:49:39,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:49:39,793 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:49:39,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 15:49:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:49:42,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 1842 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:49:42,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:49:45,610 INFO L134 CoverageAnalysis]: Checked inductivity of 1482 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1482 trivial. 0 not checked. [2021-11-19 15:49:45,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:49:47,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1482 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1482 trivial. 0 not checked. [2021-11-19 15:49:47,363 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:49:47,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [870333802] [2021-11-19 15:49:47,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [870333802] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:49:47,363 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:49:47,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-19 15:49:47,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99308460] [2021-11-19 15:49:47,364 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:49:47,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:49:47,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:49:47,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:49:47,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:49:47,366 INFO L87 Difference]: Start difference. First operand 46817 states and 65811 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-19 15:49:49,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:49:49,251 INFO L93 Difference]: Finished difference Result 46817 states and 65811 transitions. [2021-11-19 15:49:49,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:49:49,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 274 [2021-11-19 15:49:49,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:49:49,554 INFO L225 Difference]: With dead ends: 46817 [2021-11-19 15:49:49,554 INFO L226 Difference]: Without dead ends: 46746 [2021-11-19 15:49:49,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 543 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:49:49,595 INFO L933 BasicCegarLoop]: 5680 mSDtfsCounter, 5568 mSDsluCounter, 5680 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5568 SdHoareTripleChecker+Valid, 11360 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 15:49:49,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5568 Valid, 11360 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 15:49:49,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46746 states. [2021-11-19 15:49:53,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46746 to 46692. [2021-11-19 15:49:53,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46692 states, 32027 states have (on average 1.2563462078870953) internal successors, (40237), 32455 states have internal predecessors, (40237), 12678 states have call successors, (12678), 1986 states have call predecessors, (12678), 1986 states have return successors, (12678), 12560 states have call predecessors, (12678), 12678 states have call successors, (12678) [2021-11-19 15:49:54,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46692 states to 46692 states and 65593 transitions. [2021-11-19 15:49:54,250 INFO L78 Accepts]: Start accepts. Automaton has 46692 states and 65593 transitions. Word has length 274 [2021-11-19 15:49:54,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:49:54,252 INFO L470 AbstractCegarLoop]: Abstraction has 46692 states and 65593 transitions. [2021-11-19 15:49:54,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-19 15:49:54,253 INFO L276 IsEmpty]: Start isEmpty. Operand 46692 states and 65593 transitions. [2021-11-19 15:49:54,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2021-11-19 15:49:54,372 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:49:54,372 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 17, 17, 17, 17, 17, 17, 5, 5, 5, 3, 3, 3, 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] [2021-11-19 15:49:54,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 15:49:54,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:49:54,596 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:49:54,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:49:54,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1359262132, now seen corresponding path program 1 times [2021-11-19 15:49:54,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:49:54,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1002267338] [2021-11-19 15:49:54,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:49:54,600 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:49:54,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:49:54,602 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:49:54,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 15:49:57,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:49:57,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 1957 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:49:57,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:49:58,679 INFO L134 CoverageAnalysis]: Checked inductivity of 1629 backedges. 282 proven. 0 refuted. 0 times theorem prover too weak. 1347 trivial. 0 not checked. [2021-11-19 15:49:58,680 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:49:59,750 INFO L134 CoverageAnalysis]: Checked inductivity of 1629 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1615 trivial. 0 not checked. [2021-11-19 15:49:59,750 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:49:59,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1002267338] [2021-11-19 15:49:59,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1002267338] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:49:59,750 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:49:59,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:49:59,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417072049] [2021-11-19 15:49:59,751 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:49:59,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:49:59,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:49:59,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:49:59,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:49:59,754 INFO L87 Difference]: Start difference. First operand 46692 states and 65593 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 4 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) [2021-11-19 15:50:01,905 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:50:21,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:50:21,944 INFO L93 Difference]: Finished difference Result 131282 states and 184364 transitions. [2021-11-19 15:50:21,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:50:21,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 4 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) Word has length 318 [2021-11-19 15:50:21,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:50:22,866 INFO L225 Difference]: With dead ends: 131282 [2021-11-19 15:50:22,866 INFO L226 Difference]: Without dead ends: 88014 [2021-11-19 15:50:23,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 634 GetRequests, 632 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:50:23,100 INFO L933 BasicCegarLoop]: 11375 mSDtfsCounter, 10448 mSDsluCounter, 9358 mSDsCounter, 0 mSdLazyCounter, 2275 mSolverCounterSat, 34 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10448 SdHoareTripleChecker+Valid, 20733 SdHoareTripleChecker+Invalid, 2310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2275 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2021-11-19 15:50:23,100 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10448 Valid, 20733 Invalid, 2310 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [34 Valid, 2275 Invalid, 1 Unknown, 0 Unchecked, 18.6s Time] [2021-11-19 15:50:23,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88014 states. [2021-11-19 15:50:28,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88014 to 88006. [2021-11-19 15:50:28,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88006 states, 60345 states have (on average 1.2552655563841246) internal successors, (75749), 61145 states have internal predecessors, (75749), 23874 states have call successors, (23874), 3786 states have call predecessors, (23874), 3786 states have return successors, (23874), 23648 states have call predecessors, (23874), 23874 states have call successors, (23874) [2021-11-19 15:50:29,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88006 states to 88006 states and 123497 transitions. [2021-11-19 15:50:29,423 INFO L78 Accepts]: Start accepts. Automaton has 88006 states and 123497 transitions. Word has length 318 [2021-11-19 15:50:29,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:50:29,424 INFO L470 AbstractCegarLoop]: Abstraction has 88006 states and 123497 transitions. [2021-11-19 15:50:29,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 4 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) [2021-11-19 15:50:29,425 INFO L276 IsEmpty]: Start isEmpty. Operand 88006 states and 123497 transitions. [2021-11-19 15:50:29,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2021-11-19 15:50:29,501 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:50:29,501 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 17, 17, 17, 17, 17, 17, 6, 6, 6, 3, 3, 3, 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] [2021-11-19 15:50:29,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 15:50:29,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:50:29,724 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:50:29,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:50:29,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1991695558, now seen corresponding path program 1 times [2021-11-19 15:50:29,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:50:29,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1841937366] [2021-11-19 15:50:29,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:50:29,728 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:50:29,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:50:29,730 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:50:29,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 15:50:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:50:32,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 1933 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:50:32,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:50:33,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1586 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 1410 trivial. 0 not checked. [2021-11-19 15:50:33,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:50:34,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1586 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2021-11-19 15:50:34,473 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:50:34,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1841937366] [2021-11-19 15:50:34,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1841937366] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:50:34,474 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:50:34,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:50:34,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838084594] [2021-11-19 15:50:34,475 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:50:34,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:50:34,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:50:34,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:50:34,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:50:34,478 INFO L87 Difference]: Start difference. First operand 88006 states and 123497 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 4 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) [2021-11-19 15:50:36,665 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:50:59,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:50:59,435 INFO L93 Difference]: Finished difference Result 214711 states and 301367 transitions. [2021-11-19 15:50:59,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:50:59,436 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 4 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) Word has length 328 [2021-11-19 15:50:59,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:51:00,161 INFO L225 Difference]: With dead ends: 214711 [2021-11-19 15:51:00,161 INFO L226 Difference]: Without dead ends: 126634 [2021-11-19 15:51:00,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 652 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:51:00,563 INFO L933 BasicCegarLoop]: 11695 mSDtfsCounter, 11549 mSDsluCounter, 8948 mSDsCounter, 0 mSdLazyCounter, 2253 mSolverCounterSat, 1226 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11549 SdHoareTripleChecker+Valid, 20643 SdHoareTripleChecker+Invalid, 3480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1226 IncrementalHoareTripleChecker+Valid, 2253 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2021-11-19 15:51:00,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11549 Valid, 20643 Invalid, 3480 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1226 Valid, 2253 Invalid, 1 Unknown, 0 Unchecked, 19.4s Time] [2021-11-19 15:51:00,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126634 states. [2021-11-19 15:51:07,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126634 to 126630. [2021-11-19 15:51:08,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126630 states, 86842 states have (on average 1.2555790976716334) internal successors, (109037), 87986 states have internal predecessors, (109037), 34344 states have call successors, (34344), 5443 states have call predecessors, (34344), 5443 states have return successors, (34344), 34028 states have call predecessors, (34344), 34344 states have call successors, (34344) [2021-11-19 15:51:09,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126630 states to 126630 states and 177725 transitions. [2021-11-19 15:51:09,264 INFO L78 Accepts]: Start accepts. Automaton has 126630 states and 177725 transitions. Word has length 328 [2021-11-19 15:51:09,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:51:09,265 INFO L470 AbstractCegarLoop]: Abstraction has 126630 states and 177725 transitions. [2021-11-19 15:51:09,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 4 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) [2021-11-19 15:51:09,265 INFO L276 IsEmpty]: Start isEmpty. Operand 126630 states and 177725 transitions. [2021-11-19 15:51:09,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2021-11-19 15:51:09,342 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:51:09,343 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 17, 17, 17, 17, 17, 17, 7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:51:09,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 15:51:09,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:51:09,568 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:51:09,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:51:09,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1181806592, now seen corresponding path program 1 times [2021-11-19 15:51:09,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:51:09,571 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1674557808] [2021-11-19 15:51:09,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:51:09,571 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:51:09,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:51:09,572 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:51:09,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 15:51:11,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:51:11,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 1971 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 15:51:11,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:51:14,149 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 405 proven. 3 refuted. 0 times theorem prover too weak. 1363 trivial. 0 not checked. [2021-11-19 15:51:14,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:51:16,744 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 48 proven. 24 refuted. 0 times theorem prover too weak. 1699 trivial. 0 not checked. [2021-11-19 15:51:16,744 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:51:16,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1674557808] [2021-11-19 15:51:16,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1674557808] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:51:16,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1531504290] [2021-11-19 15:51:16,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:51:16,745 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 15:51:16,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 15:51:16,758 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 15:51:16,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30ce7546-abc9-48df-9cee-5014be0cad2a/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-19 15:51:18,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:51:18,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 1971 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:51:18,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:51:19,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 1651 trivial. 0 not checked. [2021-11-19 15:51:19,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:51:20,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1760 trivial. 0 not checked. [2021-11-19 15:51:20,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1531504290] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:51:20,427 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 15:51:20,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [17, 17] total 23 [2021-11-19 15:51:20,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105881543] [2021-11-19 15:51:20,427 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:51:20,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:51:20,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:51:20,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:51:20,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-11-19 15:51:20,429 INFO L87 Difference]: Start difference. First operand 126630 states and 177725 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-19 15:51:22,574 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:51:30,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:51:30,099 INFO L93 Difference]: Finished difference Result 312397 states and 438566 transitions. [2021-11-19 15:51:30,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:51:30,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 354 [2021-11-19 15:51:30,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:51:30,951 INFO L225 Difference]: With dead ends: 312397 [2021-11-19 15:51:30,951 INFO L226 Difference]: Without dead ends: 189191 [2021-11-19 15:51:31,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1412 GetRequests, 1391 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-11-19 15:51:31,535 INFO L933 BasicCegarLoop]: 11134 mSDtfsCounter, 5470 mSDsluCounter, 5606 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5470 SdHoareTripleChecker+Valid, 16740 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-19 15:51:31,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5470 Valid, 16740 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 50 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-19 15:51:31,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189191 states.