./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8e81fc6166b432b951460f7a3a0e3bbe6d1e1e00a7297f549296af2cd8a39c75 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:29:14,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:29:14,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:29:14,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:29:14,302 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:29:14,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:29:14,306 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:29:14,310 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:29:14,312 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:29:14,317 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:29:14,319 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:29:14,322 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:29:14,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:29:14,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:29:14,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:29:14,331 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:29:14,332 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:29:14,333 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:29:14,336 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:29:14,343 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:29:14,347 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:29:14,348 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:29:14,353 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:29:14,354 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:29:14,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:29:14,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:29:14,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:29:14,365 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:29:14,365 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:29:14,367 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:29:14,367 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:29:14,368 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:29:14,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:29:14,371 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:29:14,373 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:29:14,373 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:29:14,374 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:29:14,374 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:29:14,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:29:14,377 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:29:14,378 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:29:14,379 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 22:29:14,425 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:29:14,425 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:29:14,426 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:29:14,426 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:29:14,426 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:29:14,427 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:29:14,427 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:29:14,427 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:29:14,433 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:29:14,433 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:29:14,434 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:29:14,435 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:29:14,435 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:29:14,435 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:29:14,435 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:29:14,435 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:29:14,436 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:29:14,436 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:29:14,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:29:14,437 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:29:14,437 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:29:14,437 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:29:14,437 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:29:14,437 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:29:14,438 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:29:14,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:29:14,438 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:29:14,438 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:29:14,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:29:14,440 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:29:14,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:29:14,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:29:14,441 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:29:14,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:29:14,441 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:29:14,441 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:29:14,441 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:29:14,442 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_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e81fc6166b432b951460f7a3a0e3bbe6d1e1e00a7297f549296af2cd8a39c75 [2021-11-12 22:29:14,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:29:14,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:29:14,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:29:14,761 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:29:14,762 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:29:14,763 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i [2021-11-12 22:29:14,855 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/data/6329b841c/a6dccd47fab04f7a94772857dc35e13a/FLAG793364c78 [2021-11-12 22:29:15,782 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:29:15,783 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i [2021-11-12 22:29:15,851 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/data/6329b841c/a6dccd47fab04f7a94772857dc35e13a/FLAG793364c78 [2021-11-12 22:29:16,231 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/data/6329b841c/a6dccd47fab04f7a94772857dc35e13a [2021-11-12 22:29:16,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:29:16,235 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:29:16,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:29:16,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:29:16,240 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:29:16,241 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:29:16" (1/1) ... [2021-11-12 22:29:16,242 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3041d4fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:29:16, skipping insertion in model container [2021-11-12 22:29:16,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:29:16" (1/1) ... [2021-11-12 22:29:16,250 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:29:16,429 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:29:19,883 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395259,395272] [2021-11-12 22:29:19,886 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395404,395417] [2021-11-12 22:29:19,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:29:19,959 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 22:29:19,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@63b9a08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:29:19, skipping insertion in model container [2021-11-12 22:29:19,960 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:29:19,960 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:29:19,962 INFO L158 Benchmark]: Toolchain (without parser) took 3725.92ms. Allocated memory was 138.4MB in the beginning and 199.2MB in the end (delta: 60.8MB). Free memory was 87.9MB in the beginning and 111.8MB in the end (delta: -23.9MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2021-11-12 22:29:19,963 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory was 55.5MB in the beginning and 55.5MB in the end (delta: 25.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:29:19,965 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3723.23ms. Allocated memory was 138.4MB in the beginning and 199.2MB in the end (delta: 60.8MB). Free memory was 87.7MB in the beginning and 111.8MB in the end (delta: -24.1MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2021-11-12 22:29:19,967 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory was 55.5MB in the beginning and 55.5MB in the end (delta: 25.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3723.23ms. Allocated memory was 138.4MB in the beginning and 199.2MB in the end (delta: 60.8MB). Free memory was 87.7MB in the beginning and 111.8MB in the end (delta: -24.1MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7819]: 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_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8e81fc6166b432b951460f7a3a0e3bbe6d1e1e00a7297f549296af2cd8a39c75 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:29:22,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:29:22,302 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:29:22,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:29:22,333 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:29:22,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:29:22,337 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:29:22,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:29:22,342 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:29:22,343 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:29:22,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:29:22,346 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:29:22,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:29:22,348 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:29:22,350 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:29:22,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:29:22,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:29:22,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:29:22,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:29:22,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:29:22,370 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:29:22,372 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:29:22,374 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:29:22,375 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:29:22,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:29:22,380 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:29:22,380 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:29:22,381 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:29:22,382 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:29:22,384 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:29:22,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:29:22,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:29:22,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:29:22,387 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:29:22,389 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:29:22,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:29:22,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:29:22,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:29:22,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:29:22,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:29:22,394 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:29:22,396 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 22:29:22,423 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:29:22,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:29:22,424 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:29:22,425 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:29:22,425 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:29:22,425 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:29:22,425 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:29:22,425 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:29:22,426 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:29:22,426 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:29:22,427 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:29:22,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:29:22,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:29:22,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:29:22,428 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:29:22,428 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:29:22,428 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:29:22,428 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:29:22,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:29:22,429 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:29:22,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:29:22,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:29:22,429 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:29:22,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:29:22,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:29:22,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:29:22,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:29:22,430 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:29:22,431 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:29:22,431 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:29:22,431 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:29:22,431 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:29:22,431 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:29:22,432 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_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e81fc6166b432b951460f7a3a0e3bbe6d1e1e00a7297f549296af2cd8a39c75 [2021-11-12 22:29:22,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:29:22,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:29:22,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:29:22,807 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:29:22,808 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:29:22,809 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i [2021-11-12 22:29:22,884 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/data/011e6fc95/eefff4999a174189aa7cc6b73b06c411/FLAGe43b2baf6 [2021-11-12 22:29:23,978 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:29:23,978 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i [2021-11-12 22:29:24,097 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/data/011e6fc95/eefff4999a174189aa7cc6b73b06c411/FLAGe43b2baf6 [2021-11-12 22:29:24,275 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/data/011e6fc95/eefff4999a174189aa7cc6b73b06c411 [2021-11-12 22:29:24,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:29:24,281 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:29:24,282 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:29:24,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:29:24,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:29:24,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:29:24" (1/1) ... [2021-11-12 22:29:24,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54b3e0fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:29:24, skipping insertion in model container [2021-11-12 22:29:24,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:29:24" (1/1) ... [2021-11-12 22:29:24,296 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:29:24,551 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:29:28,316 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395259,395272] [2021-11-12 22:29:28,319 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395404,395417] [2021-11-12 22:29:28,340 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:29:28,420 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:29:28,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:29:28,935 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395259,395272] [2021-11-12 22:29:28,935 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395404,395417] [2021-11-12 22:29:28,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:29:28,976 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:29:30,050 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395259,395272] [2021-11-12 22:29:30,050 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395404,395417] [2021-11-12 22:29:30,055 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:29:30,343 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:29:30,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:29:30 WrapperNode [2021-11-12 22:29:30,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:29:30,346 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:29:30,346 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:29:30,346 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:29:30,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:29:30" (1/1) ... [2021-11-12 22:29:30,491 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:29:30" (1/1) ... [2021-11-12 22:29:30,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:29:30,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:29:30,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:29:30,716 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:29:30,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:29:30" (1/1) ... [2021-11-12 22:29:30,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:29:30" (1/1) ... [2021-11-12 22:29:30,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:29:30" (1/1) ... [2021-11-12 22:29:30,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:29:30" (1/1) ... [2021-11-12 22:29:30,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:29:30" (1/1) ... [2021-11-12 22:29:30,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:29:30" (1/1) ... [2021-11-12 22:29:31,027 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:29:30" (1/1) ... [2021-11-12 22:29:31,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:29:31,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:29:31,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:29:31,079 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:29:31,080 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:29:30" (1/1) ... [2021-11-12 22:29:31,087 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:29:31,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:29:31,116 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:29:31,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:29:31,163 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_running_reset [2021-11-12 22:29:31,163 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_running_reset [2021-11-12 22:29:31,163 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-12 22:29:31,163 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-12 22:29:31,164 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_crc_length [2021-11-12 22:29:31,164 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_crc_length [2021-11-12 22:29:31,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-12 22:29:31,164 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-12 22:29:31,164 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dec_reset [2021-11-12 22:29:31,164 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dec_reset [2021-11-12 22:29:31,165 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_get_link_status [2021-11-12 22:29:31,165 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_get_link_status [2021-11-12 22:29:31,165 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-12 22:29:31,165 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-12 22:29:31,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_87 [2021-11-12 22:29:31,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_87 [2021-11-12 22:29:31,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 22:29:31,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 22:29:31,166 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_default [2021-11-12 22:29:31,166 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_default [2021-11-12 22:29:31,166 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkinput [2021-11-12 22:29:31,166 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkinput [2021-11-12 22:29:31,166 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_status [2021-11-12 22:29:31,167 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_status [2021-11-12 22:29:31,167 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_100ft [2021-11-12 22:29:31,167 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_100ft [2021-11-12 22:29:31,167 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dummy_set_1 [2021-11-12 22:29:31,167 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dummy_set_1 [2021-11-12 22:29:31,167 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_close [2021-11-12 22:29:31,167 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_close [2021-11-12 22:29:31,168 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-12 22:29:31,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-12 22:29:31,168 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_watchdog [2021-11-12 22:29:31,168 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_watchdog [2021-11-12 22:29:31,169 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_reset [2021-11-12 22:29:31,169 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_reset [2021-11-12 22:29:31,169 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_sc [2021-11-12 22:29:31,169 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_sc [2021-11-12 22:29:31,170 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_netif [2021-11-12 22:29:31,170 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_netif [2021-11-12 22:29:31,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-12 22:29:31,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-12 22:29:31,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-12 22:29:31,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-12 22:29:31,171 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_trace [2021-11-12 22:29:31,171 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_trace [2021-11-12 22:29:31,171 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_get_link_status [2021-11-12 22:29:31,171 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_get_link_status [2021-11-12 22:29:31,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:29:31,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:29:31,173 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-12 22:29:31,173 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-12 22:29:31,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:29:31,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 22:29:31,174 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-12 22:29:31,174 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-12 22:29:31,174 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-12 22:29:31,174 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-12 22:29:31,174 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_default [2021-11-12 22:29:31,175 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_default [2021-11-12 22:29:31,175 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_clock [2021-11-12 22:29:31,175 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_clock [2021-11-12 22:29:31,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-12 22:29:31,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-12 22:29:31,176 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_off [2021-11-12 22:29:31,176 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_off [2021-11-12 22:29:31,177 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2021-11-12 22:29:31,177 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2021-11-12 22:29:31,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-12 22:29:31,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-12 22:29:31,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-12 22:29:31,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-12 22:29:31,178 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_default [2021-11-12 22:29:31,178 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_default [2021-11-12 22:29:31,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-12 22:29:31,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-12 22:29:31,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-12 22:29:31,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-12 22:29:31,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-12 22:29:31,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-12 22:29:31,179 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_softreset [2021-11-12 22:29:31,179 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_softreset [2021-11-12 22:29:31,180 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110_bit [2021-11-12 22:29:31,180 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110_bit [2021-11-12 22:29:31,181 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-12 22:29:31,181 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-12 22:29:31,181 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-12 22:29:31,181 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-12 22:29:31,182 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_crc_length [2021-11-12 22:29:31,182 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_crc_length [2021-11-12 22:29:31,182 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_writereg [2021-11-12 22:29:31,182 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_writereg [2021-11-12 22:29:31,182 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2021-11-12 22:29:31,183 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2021-11-12 22:29:31,183 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_status [2021-11-12 22:29:31,183 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_status [2021-11-12 22:29:31,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:29:31,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-12 22:29:31,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-12 22:29:31,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-12 22:29:31,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-12 22:29:31,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-12 22:29:31,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-12 22:29:31,184 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-12 22:29:31,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-12 22:29:31,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lmc_lock_of_lmc___softc [2021-11-12 22:29:31,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lmc_lock_of_lmc___softc [2021-11-12 22:29:31,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:29:31,185 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_readreg [2021-11-12 22:29:31,186 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_readreg [2021-11-12 22:29:31,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-12 22:29:31,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-12 22:29:31,189 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 22:29:31,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 22:29:31,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-12 22:29:31,190 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-12 22:29:31,191 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-12 22:29:31,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-12 22:29:31,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-12 22:29:31,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-12 22:29:31,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-12 22:29:31,199 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_init [2021-11-12 22:29:31,199 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_init [2021-11-12 22:29:31,200 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-12 22:29:31,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-12 22:29:31,200 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_open [2021-11-12 22:29:31,200 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_open [2021-11-12 22:29:31,200 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-12 22:29:31,200 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-12 22:29:31,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-12 22:29:31,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-12 22:29:31,201 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_watchdog [2021-11-12 22:29:31,201 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_watchdog [2021-11-12 22:29:31,201 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_status [2021-11-12 22:29:31,201 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_status [2021-11-12 22:29:31,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-12 22:29:31,201 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_set_protocol [2021-11-12 22:29:31,201 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_set_protocol [2021-11-12 22:29:31,202 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_clock [2021-11-12 22:29:31,202 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_clock [2021-11-12 22:29:31,202 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-11-12 22:29:31,202 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-11-12 22:29:31,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:29:31,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:29:31,202 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_open [2021-11-12 22:29:31,202 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_open [2021-11-12 22:29:31,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:29:31,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 22:29:31,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:29:31,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-12 22:29:31,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 22:29:31,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-12 22:29:31,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 22:29:31,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 22:29:31,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_lmc_driver_exit_17_2 [2021-11-12 22:29:31,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_lmc_driver_exit_17_2 [2021-11-12 22:29:31,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-12 22:29:31,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-12 22:29:31,204 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_get_link_status [2021-11-12 22:29:31,204 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_get_link_status [2021-11-12 22:29:31,204 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_circuit_type [2021-11-12 22:29:31,205 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_circuit_type [2021-11-12 22:29:31,205 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_status [2021-11-12 22:29:31,205 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_status [2021-11-12 22:29:31,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-12 22:29:31,205 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-12 22:29:31,205 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_get_link_status [2021-11-12 22:29:31,205 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_get_link_status [2021-11-12 22:29:31,205 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_init [2021-11-12 22:29:31,206 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_init [2021-11-12 22:29:31,206 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-12 22:29:31,206 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-12 22:29:31,206 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_scram [2021-11-12 22:29:31,206 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_scram [2021-11-12 22:29:31,206 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_init [2021-11-12 22:29:31,206 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_init [2021-11-12 22:29:31,206 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkoutput [2021-11-12 22:29:31,207 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkoutput [2021-11-12 22:29:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-12 22:29:31,207 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-12 22:29:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:29:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_driver_timeout [2021-11-12 22:29:31,207 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_driver_timeout [2021-11-12 22:29:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lmc_lock_of_lmc___softc [2021-11-12 22:29:31,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lmc_lock_of_lmc___softc [2021-11-12 22:29:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:29:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-12 22:29:31,208 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-12 22:29:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 22:29:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 22:29:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 22:29:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110 [2021-11-12 22:29:31,209 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110 [2021-11-12 22:29:31,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:29:31,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:29:31,209 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-12 22:29:31,209 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-12 22:29:31,209 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_speed [2021-11-12 22:29:31,209 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_speed [2021-11-12 22:29:31,210 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_crc_length [2021-11-12 22:29:31,210 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_crc_length [2021-11-12 22:29:31,210 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_type [2021-11-12 22:29:31,210 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_type [2021-11-12 22:29:31,210 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_remove_one [2021-11-12 22:29:31,210 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_remove_one [2021-11-12 22:29:31,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-12 22:29:31,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-12 22:29:31,211 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-11-12 22:29:31,211 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-11-12 22:29:31,211 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_write [2021-11-12 22:29:31,211 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_write [2021-11-12 22:29:31,211 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_close [2021-11-12 22:29:31,211 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_close [2021-11-12 22:29:31,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-12 22:29:31,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-12 22:29:31,212 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-12 22:29:31,212 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-12 22:29:31,212 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-12 22:29:31,212 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-12 22:29:31,212 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_link_status [2021-11-12 22:29:31,212 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_link_status [2021-11-12 22:29:31,212 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 22:29:31,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 22:29:31,213 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_watchdog [2021-11-12 22:29:31,213 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_watchdog [2021-11-12 22:29:31,213 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-12 22:29:31,213 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-12 22:29:31,213 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_watchdog [2021-11-12 22:29:31,213 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_watchdog [2021-11-12 22:29:31,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-12 22:29:31,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-12 22:29:31,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-12 22:29:31,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-12 22:29:31,214 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-11-12 22:29:31,214 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-11-12 22:29:31,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-12 22:29:31,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-12 22:29:31,215 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_link_status [2021-11-12 22:29:31,219 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_link_status [2021-11-12 22:29:31,219 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_init [2021-11-12 22:29:31,219 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_init [2021-11-12 22:29:31,219 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_attach [2021-11-12 22:29:31,220 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_attach [2021-11-12 22:29:31,220 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_default [2021-11-12 22:29:31,220 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_default [2021-11-12 22:29:31,220 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-12 22:29:31,220 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-12 22:29:31,221 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2021-11-12 22:29:31,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2021-11-12 22:29:31,221 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_crc_length [2021-11-12 22:29:31,222 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_crc_length [2021-11-12 22:29:31,222 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_clock [2021-11-12 22:29:31,222 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_clock [2021-11-12 22:29:31,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-12 22:29:31,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-12 22:29:31,222 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dummy_set2_1 [2021-11-12 22:29:31,222 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dummy_set2_1 [2021-11-12 22:29:31,222 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_on [2021-11-12 22:29:31,223 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_on [2021-11-12 22:29:31,223 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-11-12 22:29:31,223 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-11-12 22:29:31,223 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-12 22:29:31,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-12 22:29:31,223 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2021-11-12 22:29:31,223 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2021-11-12 22:29:31,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-12 22:29:31,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-12 22:29:31,224 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2021-11-12 22:29:31,224 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2021-11-12 22:29:38,421 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 22:29:54,195 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint switch_break: call #t~mem1372#1.base, #t~mem1372#1.offset := read~$Pointer$(~sc#1.base, ~bvadd64(141bv64, ~sc#1.offset), 8bv64); [2021-11-12 22:29:54,195 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L12895: SUMMARY for call lmc_trace(#t~mem1372#1.base, #t~mem1372#1.offset, #t~string1373.base, #t~string1373.offset); srcloc: null [2021-11-12 22:29:54,195 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L12895-1: havoc #t~mem1372#1.base, #t~mem1372#1.offset; [2021-11-12 22:30:39,732 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-12 22:30:39,946 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:30:39,947 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 22:30:39,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:30:39 BoogieIcfgContainer [2021-11-12 22:30:39,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:30:39,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:30:39,956 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:30:39,958 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:30:39,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:29:24" (1/3) ... [2021-11-12 22:30:39,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@168ea200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:30:39, skipping insertion in model container [2021-11-12 22:30:39,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:29:30" (2/3) ... [2021-11-12 22:30:39,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@168ea200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:30:39, skipping insertion in model container [2021-11-12 22:30:39,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:30:39" (3/3) ... [2021-11-12 22:30:39,962 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i [2021-11-12 22:30:39,967 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:30:39,967 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:30:40,028 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:30:40,034 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 22:30:40,034 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 22:30:40,116 INFO L276 IsEmpty]: Start isEmpty. Operand has 2527 states, 1630 states have (on average 1.2914110429447854) internal successors, (2105), 1698 states have internal predecessors, (2105), 777 states have call successors, (777), 120 states have call predecessors, (777), 119 states have return successors, (770), 727 states have call predecessors, (770), 770 states have call successors, (770) [2021-11-12 22:30:40,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-11-12 22:30:40,158 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:30:40,160 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:30:40,160 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:30:40,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:30:40,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1696066559, now seen corresponding path program 1 times [2021-11-12 22:30:40,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:30:40,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [430893933] [2021-11-12 22:30:40,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:30:40,189 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:30:40,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:30:40,191 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:30:40,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:30:45,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:30:45,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 1976 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:30:45,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:30:46,333 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2021-11-12 22:30:46,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:30:47,198 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-11-12 22:30:47,199 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:30:47,199 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [430893933] [2021-11-12 22:30:47,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [430893933] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:30:47,200 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:30:47,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:30:47,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827445103] [2021-11-12 22:30:47,205 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:30:47,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:30:47,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:30:47,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:30:47,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:30:47,265 INFO L87 Difference]: Start difference. First operand has 2527 states, 1630 states have (on average 1.2914110429447854) internal successors, (2105), 1698 states have internal predecessors, (2105), 777 states have call successors, (777), 120 states have call predecessors, (777), 119 states have return successors, (770), 727 states have call predecessors, (770), 770 states have call successors, (770) Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2021-11-12 22:30:49,596 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:31:00,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:31:00,997 INFO L93 Difference]: Finished difference Result 9515 states and 13870 transitions. [2021-11-12 22:31:00,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:31:01,000 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 215 [2021-11-12 22:31:01,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:31:01,111 INFO L225 Difference]: With dead ends: 9515 [2021-11-12 22:31:01,111 INFO L226 Difference]: Without dead ends: 6924 [2021-11-12 22:31:01,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 426 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:31:01,148 INFO L933 BasicCegarLoop]: 5111 mSDtfsCounter, 6609 mSDsluCounter, 6424 mSDsCounter, 0 mSdLazyCounter, 1526 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12152.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6609 SdHoareTripleChecker+Valid, 11535 SdHoareTripleChecker+Invalid, 1577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 79.19ms SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1526 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13013.70ms IncrementalHoareTripleChecker+Time [2021-11-12 22:31:01,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6609 Valid, 11535 Invalid, 1577 Unknown, 0 Unchecked, 79.19ms Time], IncrementalHoareTripleChecker [50 Valid, 1526 Invalid, 1 Unknown, 0 Unchecked, 13013.70ms Time] [2021-11-12 22:31:01,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6924 states. [2021-11-12 22:31:01,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6924 to 6918. [2021-11-12 22:31:01,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6918 states, 4502 states have (on average 1.2952021323856064) internal successors, (5831), 4697 states have internal predecessors, (5831), 2078 states have call successors, (2078), 337 states have call predecessors, (2078), 337 states have return successors, (2078), 1949 states have call predecessors, (2078), 2078 states have call successors, (2078) [2021-11-12 22:31:01,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6918 states to 6918 states and 9987 transitions. [2021-11-12 22:31:01,817 INFO L78 Accepts]: Start accepts. Automaton has 6918 states and 9987 transitions. Word has length 215 [2021-11-12 22:31:01,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:31:01,821 INFO L470 AbstractCegarLoop]: Abstraction has 6918 states and 9987 transitions. [2021-11-12 22:31:01,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2021-11-12 22:31:01,822 INFO L276 IsEmpty]: Start isEmpty. Operand 6918 states and 9987 transitions. [2021-11-12 22:31:01,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2021-11-12 22:31:01,856 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:31:01,858 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:31:01,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:31:02,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:31:02,080 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:31:02,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:31:02,081 INFO L85 PathProgramCache]: Analyzing trace with hash 831434898, now seen corresponding path program 1 times [2021-11-12 22:31:02,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:31:02,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1913964303] [2021-11-12 22:31:02,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:31:02,089 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:31:02,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:31:02,090 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:31:02,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:31:07,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:31:07,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 2134 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:31:07,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:31:08,749 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 954 trivial. 0 not checked. [2021-11-12 22:31:08,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:31:09,529 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 999 trivial. 0 not checked. [2021-11-12 22:31:09,530 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:31:09,530 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1913964303] [2021-11-12 22:31:09,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1913964303] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:31:09,530 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:31:09,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 22:31:09,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759792126] [2021-11-12 22:31:09,531 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:31:09,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:31:09,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:31:09,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:31:09,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:31:09,534 INFO L87 Difference]: Start difference. First operand 6918 states and 9987 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-12 22:31:11,809 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 [] [2021-11-12 22:31:12,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:31:12,660 INFO L93 Difference]: Finished difference Result 19465 states and 28064 transitions. [2021-11-12 22:31:12,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:31:12,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 278 [2021-11-12 22:31:12,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:31:12,816 INFO L225 Difference]: With dead ends: 19465 [2021-11-12 22:31:12,816 INFO L226 Difference]: Without dead ends: 12582 [2021-11-12 22:31:12,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 553 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:31:12,885 INFO L933 BasicCegarLoop]: 4226 mSDtfsCounter, 2936 mSDsluCounter, 3524 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2514.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2936 SdHoareTripleChecker+Valid, 7750 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.36ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2614.58ms IncrementalHoareTripleChecker+Time [2021-11-12 22:31:12,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2936 Valid, 7750 Invalid, 48 Unknown, 0 Unchecked, 19.36ms Time], IncrementalHoareTripleChecker [7 Valid, 40 Invalid, 1 Unknown, 0 Unchecked, 2614.58ms Time] [2021-11-12 22:31:12,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12582 states. [2021-11-12 22:31:13,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12582 to 12564. [2021-11-12 22:31:13,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12564 states, 8216 states have (on average 1.294790652385589) internal successors, (10638), 8582 states have internal predecessors, (10638), 3703 states have call successors, (3703), 644 states have call predecessors, (3703), 644 states have return successors, (3754), 3447 states have call predecessors, (3754), 3703 states have call successors, (3754) [2021-11-12 22:31:13,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12564 states to 12564 states and 18095 transitions. [2021-11-12 22:31:13,692 INFO L78 Accepts]: Start accepts. Automaton has 12564 states and 18095 transitions. Word has length 278 [2021-11-12 22:31:13,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:31:13,693 INFO L470 AbstractCegarLoop]: Abstraction has 12564 states and 18095 transitions. [2021-11-12 22:31:13,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-12 22:31:13,694 INFO L276 IsEmpty]: Start isEmpty. Operand 12564 states and 18095 transitions. [2021-11-12 22:31:13,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-11-12 22:31:13,723 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:31:13,724 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:31:13,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:31:13,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:31:13,939 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:31:13,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:31:13,939 INFO L85 PathProgramCache]: Analyzing trace with hash 632847620, now seen corresponding path program 1 times [2021-11-12 22:31:13,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:31:13,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1807200390] [2021-11-12 22:31:13,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:31:13,942 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:31:13,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:31:13,944 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:31:13,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:31:19,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:31:19,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 2189 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:31:19,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:31:20,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1029 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 984 trivial. 0 not checked. [2021-11-12 22:31:20,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:31:21,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1029 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1029 trivial. 0 not checked. [2021-11-12 22:31:21,280 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:31:21,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1807200390] [2021-11-12 22:31:21,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1807200390] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:31:21,280 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:31:21,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:31:21,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533818254] [2021-11-12 22:31:21,281 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:31:21,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:31:21,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:31:21,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:31:21,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:31:21,283 INFO L87 Difference]: Start difference. First operand 12564 states and 18095 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 4 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) [2021-11-12 22:31:23,546 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:31:34,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:31:34,901 INFO L93 Difference]: Finished difference Result 47883 states and 69058 transitions. [2021-11-12 22:31:34,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:31:34,902 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 4 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) Word has length 293 [2021-11-12 22:31:34,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:31:35,212 INFO L225 Difference]: With dead ends: 47883 [2021-11-12 22:31:35,213 INFO L226 Difference]: Without dead ends: 35354 [2021-11-12 22:31:35,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 584 GetRequests, 582 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:31:35,320 INFO L933 BasicCegarLoop]: 5012 mSDtfsCounter, 6548 mSDsluCounter, 8142 mSDsCounter, 0 mSdLazyCounter, 1440 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11496.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6548 SdHoareTripleChecker+Valid, 13154 SdHoareTripleChecker+Invalid, 1457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 45.20ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1440 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12247.93ms IncrementalHoareTripleChecker+Time [2021-11-12 22:31:35,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6548 Valid, 13154 Invalid, 1457 Unknown, 0 Unchecked, 45.20ms Time], IncrementalHoareTripleChecker [16 Valid, 1440 Invalid, 1 Unknown, 0 Unchecked, 12247.93ms Time] [2021-11-12 22:31:35,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35354 states. [2021-11-12 22:31:37,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35354 to 35326. [2021-11-12 22:31:37,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35326 states, 22890 states have (on average 1.292267365661861) internal successors, (29580), 23964 states have internal predecessors, (29580), 10563 states have call successors, (10563), 1872 states have call predecessors, (10563), 1872 states have return successors, (10814), 9771 states have call predecessors, (10814), 10563 states have call successors, (10814) [2021-11-12 22:31:37,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35326 states to 35326 states and 50957 transitions. [2021-11-12 22:31:37,690 INFO L78 Accepts]: Start accepts. Automaton has 35326 states and 50957 transitions. Word has length 293 [2021-11-12 22:31:37,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:31:37,692 INFO L470 AbstractCegarLoop]: Abstraction has 35326 states and 50957 transitions. [2021-11-12 22:31:37,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 4 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) [2021-11-12 22:31:37,692 INFO L276 IsEmpty]: Start isEmpty. Operand 35326 states and 50957 transitions. [2021-11-12 22:31:37,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2021-11-12 22:31:37,950 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:31:37,951 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 15, 15, 15, 15, 15, 15, 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] [2021-11-12 22:31:38,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:31:38,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:31:38,179 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:31:38,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:31:38,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1072293341, now seen corresponding path program 1 times [2021-11-12 22:31:38,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:31:38,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1881672514] [2021-11-12 22:31:38,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:31:38,183 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:31:38,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:31:38,184 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:31:38,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:31:42,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:31:43,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 2148 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:31:43,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:31:44,196 INFO L134 CoverageAnalysis]: Checked inductivity of 1314 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 1056 trivial. 0 not checked. [2021-11-12 22:31:44,196 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:31:45,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1314 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2021-11-12 22:31:45,233 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:31:45,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1881672514] [2021-11-12 22:31:45,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1881672514] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:31:45,234 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:31:45,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:31:45,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483581867] [2021-11-12 22:31:45,234 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:31:45,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:31:45,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:31:45,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:31:45,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:31:45,236 INFO L87 Difference]: Start difference. First operand 35326 states and 50957 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 4 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (37), 4 states have call predecessors, (37), 4 states have call successors, (37) [2021-11-12 22:31:47,503 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:31:59,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:31:59,974 INFO L93 Difference]: Finished difference Result 104329 states and 150568 transitions. [2021-11-12 22:31:59,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:31:59,975 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 4 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (37), 4 states have call predecessors, (37), 4 states have call successors, (37) Word has length 299 [2021-11-12 22:31:59,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:32:00,602 INFO L225 Difference]: With dead ends: 104329 [2021-11-12 22:32:00,603 INFO L226 Difference]: Without dead ends: 69038 [2021-11-12 22:32:00,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 596 GetRequests, 594 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:32:00,814 INFO L933 BasicCegarLoop]: 7391 mSDtfsCounter, 6696 mSDsluCounter, 5871 mSDsCounter, 0 mSdLazyCounter, 1583 mSolverCounterSat, 33 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11494.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6696 SdHoareTripleChecker+Valid, 13262 SdHoareTripleChecker+Invalid, 1617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.89ms SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1583 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12277.18ms IncrementalHoareTripleChecker+Time [2021-11-12 22:32:00,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6696 Valid, 13262 Invalid, 1617 Unknown, 0 Unchecked, 30.89ms Time], IncrementalHoareTripleChecker [33 Valid, 1583 Invalid, 1 Unknown, 0 Unchecked, 12277.18ms Time] [2021-11-12 22:32:00,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69038 states. [2021-11-12 22:32:05,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69038 to 69022. [2021-11-12 22:32:05,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69022 states, 44652 states have (on average 1.292327331362537) internal successors, (57705), 46782 states have internal predecessors, (57705), 20694 states have call successors, (20694), 3675 states have call predecessors, (20694), 3675 states have return successors, (21152), 19113 states have call predecessors, (21152), 20694 states have call successors, (21152) [2021-11-12 22:32:06,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69022 states to 69022 states and 99551 transitions. [2021-11-12 22:32:06,347 INFO L78 Accepts]: Start accepts. Automaton has 69022 states and 99551 transitions. Word has length 299 [2021-11-12 22:32:06,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:32:06,348 INFO L470 AbstractCegarLoop]: Abstraction has 69022 states and 99551 transitions. [2021-11-12 22:32:06,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 4 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (37), 4 states have call predecessors, (37), 4 states have call successors, (37) [2021-11-12 22:32:06,349 INFO L276 IsEmpty]: Start isEmpty. Operand 69022 states and 99551 transitions. [2021-11-12 22:32:06,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2021-11-12 22:32:06,385 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:32:06,385 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 12, 12, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:32:06,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:32:06,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:32:06,607 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:32:06,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:32:06,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1382457427, now seen corresponding path program 1 times [2021-11-12 22:32:06,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:32:06,613 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [363603440] [2021-11-12 22:32:06,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:32:06,613 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:32:06,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:32:06,614 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:32:06,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:32:12,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:32:12,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 2512 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:32:12,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:32:14,236 INFO L134 CoverageAnalysis]: Checked inductivity of 1205 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2021-11-12 22:32:14,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:32:15,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1205 trivial. 0 not checked. [2021-11-12 22:32:15,414 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:32:15,414 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [363603440] [2021-11-12 22:32:15,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [363603440] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:32:15,415 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:32:15,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:32:15,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575675807] [2021-11-12 22:32:15,415 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:32:15,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:32:15,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:32:15,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:32:15,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:32:15,416 INFO L87 Difference]: Start difference. First operand 69022 states and 99551 transitions. Second operand has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 4 states have call successors, (83), 3 states have call predecessors, (83), 3 states have return successors, (80), 4 states have call predecessors, (80), 4 states have call successors, (80) [2021-11-12 22:32:17,726 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:32:34,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:32:34,931 INFO L93 Difference]: Finished difference Result 266271 states and 383678 transitions. [2021-11-12 22:32:34,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:32:34,936 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 4 states have call successors, (83), 3 states have call predecessors, (83), 3 states have return successors, (80), 4 states have call predecessors, (80), 4 states have call successors, (80) Word has length 396 [2021-11-12 22:32:34,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:32:36,582 INFO L225 Difference]: With dead ends: 266271 [2021-11-12 22:32:36,582 INFO L226 Difference]: Without dead ends: 197284 [2021-11-12 22:32:36,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 790 GetRequests, 788 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:32:36,992 INFO L933 BasicCegarLoop]: 5819 mSDtfsCounter, 6850 mSDsluCounter, 8543 mSDsCounter, 0 mSdLazyCounter, 1434 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11207.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6850 SdHoareTripleChecker+Valid, 14362 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.12ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1434 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11949.75ms IncrementalHoareTripleChecker+Time [2021-11-12 22:32:36,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6850 Valid, 14362 Invalid, 1442 Unknown, 0 Unchecked, 27.12ms Time], IncrementalHoareTripleChecker [7 Valid, 1434 Invalid, 1 Unknown, 0 Unchecked, 11949.75ms Time] [2021-11-12 22:32:37,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197284 states. [2021-11-12 22:32:47,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197284 to 196986. [2021-11-12 22:32:47,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196986 states, 127340 states have (on average 1.2936783414480917) internal successors, (164737), 133504 states have internal predecessors, (164737), 58908 states have call successors, (58908), 10685 states have call predecessors, (58908), 10737 states have return successors, (60128), 54291 states have call predecessors, (60128), 58908 states have call successors, (60128) [2021-11-12 22:32:49,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196986 states to 196986 states and 283773 transitions. [2021-11-12 22:32:49,817 INFO L78 Accepts]: Start accepts. Automaton has 196986 states and 283773 transitions. Word has length 396 [2021-11-12 22:32:49,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:32:49,818 INFO L470 AbstractCegarLoop]: Abstraction has 196986 states and 283773 transitions. [2021-11-12 22:32:49,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 4 states have call successors, (83), 3 states have call predecessors, (83), 3 states have return successors, (80), 4 states have call predecessors, (80), 4 states have call successors, (80) [2021-11-12 22:32:49,819 INFO L276 IsEmpty]: Start isEmpty. Operand 196986 states and 283773 transitions. [2021-11-12 22:32:49,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2021-11-12 22:32:49,879 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:32:49,880 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 15, 15, 15, 15, 15, 15, 12, 12, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:32:49,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 22:32:50,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:32:50,095 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:32:50,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:32:50,096 INFO L85 PathProgramCache]: Analyzing trace with hash 400878802, now seen corresponding path program 1 times [2021-11-12 22:32:50,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:32:50,099 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1728326318] [2021-11-12 22:32:50,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:32:50,099 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:32:50,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:32:50,100 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:32:50,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5f2601-5d71-43a6-8d66-98bcc9389742/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 22:32:55,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:32:55,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 2553 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:32:55,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:32:57,601 INFO L134 CoverageAnalysis]: Checked inductivity of 1268 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 1164 trivial. 0 not checked. [2021-11-12 22:32:57,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:32:59,033 INFO L134 CoverageAnalysis]: Checked inductivity of 1268 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1257 trivial. 0 not checked. [2021-11-12 22:32:59,033 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:32:59,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1728326318] [2021-11-12 22:32:59,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1728326318] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:32:59,034 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:32:59,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:32:59,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658780933] [2021-11-12 22:32:59,034 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:32:59,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:32:59,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:32:59,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:32:59,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:32:59,036 INFO L87 Difference]: Start difference. First operand 196986 states and 283773 transitions. Second operand has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 4 states have call successors, (87), 3 states have call predecessors, (87), 3 states have return successors, (84), 4 states have call predecessors, (84), 4 states have call successors, (84) [2021-11-12 22:33:01,301 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []