./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4bcb37c4379f8eccb740fb6c6359bb8950e56f103e832e8f7687e811a6b9e6cf --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:47:34,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:47:34,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:47:34,444 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:47:34,445 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:47:34,446 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:47:34,448 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:47:34,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:47:34,454 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:47:34,455 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:47:34,456 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:47:34,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:47:34,464 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:47:34,472 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:47:34,476 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:47:34,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:47:34,478 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:47:34,479 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:47:34,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:47:34,484 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:47:34,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:47:34,492 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:47:34,497 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:47:34,498 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:47:34,510 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:47:34,511 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:47:34,511 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:47:34,513 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:47:34,513 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:47:34,514 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:47:34,515 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:47:34,516 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:47:34,518 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:47:34,519 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:47:34,521 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:47:34,522 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:47:34,522 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:47:34,523 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:47:34,523 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:47:34,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:47:34,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:47:34,529 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:47:34,583 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:47:34,583 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:47:34,585 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:47:34,585 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:47:34,585 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:47:34,585 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:47:34,586 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:47:34,586 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:47:34,592 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:47:34,592 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:47:34,592 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:47:34,593 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:47:34,593 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:47:34,593 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:47:34,593 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:47:34,593 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:47:34,594 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:47:34,594 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:47:34,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:47:34,595 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:47:34,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:47:34,595 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:47:34,595 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:47:34,595 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:47:34,596 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:47:34,596 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:47:34,596 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:47:34,596 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:47:34,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:47:34,597 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:47:34,597 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:47:34,597 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:47:34,597 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:47:34,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:47:34,598 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:47:34,598 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:47:34,598 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:47:34,598 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_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bcb37c4379f8eccb740fb6c6359bb8950e56f103e832e8f7687e811a6b9e6cf [2021-11-19 14:47:34,877 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:47:34,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:47:34,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:47:34,906 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:47:34,907 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:47:34,909 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2021-11-19 14:47:35,018 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/data/dd2e329a5/ca03fb5408634d57b39aca72c31d420f/FLAGdffef1e5e [2021-11-19 14:47:35,969 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:47:35,970 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2021-11-19 14:47:36,018 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/data/dd2e329a5/ca03fb5408634d57b39aca72c31d420f/FLAGdffef1e5e [2021-11-19 14:47:36,337 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/data/dd2e329a5/ca03fb5408634d57b39aca72c31d420f [2021-11-19 14:47:36,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:47:36,342 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:47:36,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:47:36,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:47:36,347 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:47:36,348 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:47:36" (1/1) ... [2021-11-19 14:47:36,349 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5697a6b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:36, skipping insertion in model container [2021-11-19 14:47:36,349 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:47:36" (1/1) ... [2021-11-19 14:47:36,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:47:36,495 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:47:38,554 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:47:38,595 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:47:38,601 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:47:39,679 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[345848,345861] [2021-11-19 14:47:39,682 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[345993,346006] [2021-11-19 14:47:39,704 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:47:39,741 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 14:47:39,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6417498a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:39, skipping insertion in model container [2021-11-19 14:47:39,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:47:39,774 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:47:39,776 INFO L158 Benchmark]: Toolchain (without parser) took 3433.29ms. Allocated memory is still 148.9MB. Free memory was 97.5MB in the beginning and 101.3MB in the end (delta: -3.8MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2021-11-19 14:47:39,777 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 88.1MB. Free memory was 58.7MB in the beginning and 58.7MB in the end (delta: 26.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:47:39,777 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3430.44ms. Allocated memory is still 148.9MB. Free memory was 97.2MB in the beginning and 101.3MB in the end (delta: -4.0MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2021-11-19 14:47:39,779 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 88.1MB. Free memory was 58.7MB in the beginning and 58.7MB in the end (delta: 26.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3430.44ms. Allocated memory is still 148.9MB. Free memory was 97.2MB in the beginning and 101.3MB in the end (delta: -4.0MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6391]: 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_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4bcb37c4379f8eccb740fb6c6359bb8950e56f103e832e8f7687e811a6b9e6cf --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:47:42,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:47:42,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:47:42,036 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:47:42,037 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:47:42,038 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:47:42,040 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:47:42,042 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:47:42,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:47:42,045 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:47:42,046 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:47:42,048 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:47:42,048 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:47:42,050 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:47:42,051 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:47:42,053 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:47:42,054 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:47:42,055 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:47:42,057 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:47:42,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:47:42,061 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:47:42,063 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:47:42,064 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:47:42,065 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:47:42,069 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:47:42,069 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:47:42,070 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:47:42,071 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:47:42,072 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:47:42,073 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:47:42,073 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:47:42,074 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:47:42,075 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:47:42,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:47:42,077 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:47:42,078 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:47:42,079 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:47:42,079 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:47:42,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:47:42,081 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:47:42,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:47:42,082 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:47:42,112 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:47:42,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:47:42,114 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:47:42,114 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:47:42,114 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:47:42,114 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:47:42,115 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:47:42,115 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:47:42,115 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:47:42,115 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:47:42,118 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:47:42,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:47:42,119 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:47:42,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:47:42,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:47:42,119 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:47:42,120 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:47:42,120 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:47:42,120 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:47:42,120 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:47:42,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:47:42,121 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:47:42,121 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:47:42,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:47:42,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:47:42,122 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:47:42,122 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:47:42,122 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:47:42,122 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:47:42,123 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:47:42,123 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:47:42,123 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:47:42,123 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:47:42,123 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_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bcb37c4379f8eccb740fb6c6359bb8950e56f103e832e8f7687e811a6b9e6cf [2021-11-19 14:47:42,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:47:42,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:47:42,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:47:42,560 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:47:42,560 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:47:42,562 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2021-11-19 14:47:42,626 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/data/8d299bb13/214c601f7907416a9fed2efe8a906f5b/FLAG985f0486f [2021-11-19 14:47:43,544 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:47:43,545 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2021-11-19 14:47:43,598 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/data/8d299bb13/214c601f7907416a9fed2efe8a906f5b/FLAG985f0486f [2021-11-19 14:47:43,940 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/data/8d299bb13/214c601f7907416a9fed2efe8a906f5b [2021-11-19 14:47:43,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:47:43,944 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:47:43,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:47:43,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:47:43,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:47:43,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:47:43" (1/1) ... [2021-11-19 14:47:43,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27b28c47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:43, skipping insertion in model container [2021-11-19 14:47:43,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:47:43" (1/1) ... [2021-11-19 14:47:43,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:47:44,179 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:47:47,627 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[345848,345861] [2021-11-19 14:47:47,629 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[345993,346006] [2021-11-19 14:47:47,649 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:47:47,710 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:47:47,830 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:47:48,192 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[345848,345861] [2021-11-19 14:47:48,193 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[345993,346006] [2021-11-19 14:47:48,199 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:47:48,291 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:47:48,665 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[345848,345861] [2021-11-19 14:47:48,665 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[345993,346006] [2021-11-19 14:47:48,670 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:47:48,956 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:47:48,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:48 WrapperNode [2021-11-19 14:47:48,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:47:48,958 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:47:48,959 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:47:48,959 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:47:48,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:48" (1/1) ... [2021-11-19 14:47:49,185 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:48" (1/1) ... [2021-11-19 14:47:49,465 INFO L137 Inliner]: procedures = 451, calls = 2346, calls flagged for inlining = 211, calls inlined = 196, statements flattened = 5201 [2021-11-19 14:47:49,466 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:47:49,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:47:49,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:47:49,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:47:49,477 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:48" (1/1) ... [2021-11-19 14:47:49,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:48" (1/1) ... [2021-11-19 14:47:49,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:48" (1/1) ... [2021-11-19 14:47:49,508 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:48" (1/1) ... [2021-11-19 14:47:49,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:48" (1/1) ... [2021-11-19 14:47:49,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:48" (1/1) ... [2021-11-19 14:47:49,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:48" (1/1) ... [2021-11-19 14:47:49,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:47:49,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:47:49,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:47:49,813 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:47:49,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:48" (1/1) ... [2021-11-19 14:47:49,823 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:47:49,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:47:49,854 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:47:49,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:47:49,957 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_resume [2021-11-19 14:47:49,958 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_resume [2021-11-19 14:47:49,958 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-19 14:47:49,958 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-19 14:47:49,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 14:47:49,958 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 14:47:49,958 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-19 14:47:49,958 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-19 14:47:49,958 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_write_reg [2021-11-19 14:47:49,959 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_write_reg [2021-11-19 14:47:49,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_86 [2021-11-19 14:47:49,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_86 [2021-11-19 14:47:49,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 14:47:49,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 14:47:49,959 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read8 [2021-11-19 14:47:49,959 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read8 [2021-11-19 14:47:49,959 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-19 14:47:49,960 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-19 14:47:49,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_tlan_priv [2021-11-19 14:47:49,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_tlan_priv [2021-11-19 14:47:49,960 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_read_and_clear_stats [2021-11-19 14:47:49,960 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_read_and_clear_stats [2021-11-19 14:47:49,960 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_sync [2021-11-19 14:47:49,960 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_sync [2021-11-19 14:47:49,960 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-19 14:47:49,960 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-19 14:47:49,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 14:47:49,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 14:47:49,961 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-19 14:47:49,961 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-19 14:47:49,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 14:47:49,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 14:47:49,962 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-19 14:47:49,962 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-19 14:47:49,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:47:49,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 14:47:49,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:47:49,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:47:49,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 14:47:49,963 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 14:47:49,963 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 14:47:49,963 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_lists [2021-11-19 14:47:49,963 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_lists [2021-11-19 14:47:49,963 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_close [2021-11-19 14:47:49,964 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_close [2021-11-19 14:47:49,964 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 14:47:49,964 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 14:47:49,964 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_print [2021-11-19 14:47:49,965 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_print [2021-11-19 14:47:49,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-19 14:47:49,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-19 14:47:49,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_tlan_priv [2021-11-19 14:47:49,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_tlan_priv [2021-11-19 14:47:49,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_unregister_driver [2021-11-19 14:47:49,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_unregister_driver [2021-11-19 14:47:49,968 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_probe1 [2021-11-19 14:47:49,968 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_probe1 [2021-11-19 14:47:49,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 14:47:49,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 14:47:49,968 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-19 14:47:49,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-19 14:47:49,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-19 14:47:49,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-19 14:47:49,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 14:47:49,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 14:47:49,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 14:47:49,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 14:47:49,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-19 14:47:49,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-19 14:47:49,970 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_timer [2021-11-19 14:47:49,970 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_timer [2021-11-19 14:47:49,970 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_stop [2021-11-19 14:47:49,970 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_stop [2021-11-19 14:47:49,970 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-19 14:47:49,971 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-19 14:47:49,971 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-19 14:47:49,971 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-19 14:47:49,971 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_remove_one [2021-11-19 14:47:49,971 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_remove_one [2021-11-19 14:47:49,971 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_get_skb [2021-11-19 14:47:49,971 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_get_skb [2021-11-19 14:47:49,972 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_byte [2021-11-19 14:47:49,972 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_byte [2021-11-19 14:47:49,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:47:49,972 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2021-11-19 14:47:49,973 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2021-11-19 14:47:49,973 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2021-11-19 14:47:49,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2021-11-19 14:47:49,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 14:47:49,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 14:47:49,974 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_poll [2021-11-19 14:47:49,974 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_poll [2021-11-19 14:47:49,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:47:49,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 14:47:49,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 14:47:49,974 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 14:47:49,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 14:47:49,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:47:49,975 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-19 14:47:49,975 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:47:49,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:47:49,975 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_free_lists [2021-11-19 14:47:49,975 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_free_lists [2021-11-19 14:47:49,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-19 14:47:49,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-19 14:47:49,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-19 14:47:49,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-19 14:47:49,976 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-19 14:47:49,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-19 14:47:49,977 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 14:47:49,979 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 14:47:49,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_stop_11_2 [2021-11-19 14:47:49,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_stop_11_2 [2021-11-19 14:47:49,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-19 14:47:49,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-19 14:47:49,981 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2021-11-19 14:47:49,982 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2021-11-19 14:47:49,982 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_store_skb [2021-11-19 14:47:49,982 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_store_skb [2021-11-19 14:47:49,987 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_tx_timeout [2021-11-19 14:47:49,987 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_tx_timeout [2021-11-19 14:47:49,987 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_detect [2021-11-19 14:47:49,988 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_detect [2021-11-19 14:47:49,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:47:49,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:47:49,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:47:49,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:47:49,989 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2021-11-19 14:47:49,989 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2021-11-19 14:47:49,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:47:49,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 14:47:49,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 14:47:49,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 14:47:49,990 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_exit [2021-11-19 14:47:49,990 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_exit [2021-11-19 14:47:49,990 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-19 14:47:49,990 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-19 14:47:49,990 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2021-11-19 14:47:49,990 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2021-11-19 14:47:49,991 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_handle_interrupt [2021-11-19 14:47:49,991 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_handle_interrupt [2021-11-19 14:47:49,991 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_start [2021-11-19 14:47:49,991 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_start [2021-11-19 14:47:49,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-19 14:47:49,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-19 14:47:49,991 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-19 14:47:49,991 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-19 14:47:49,991 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-19 14:47:49,991 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-19 14:47:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2021-11-19 14:47:49,992 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2021-11-19 14:47:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:47:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_multicast_list [2021-11-19 14:47:49,992 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_multicast_list [2021-11-19 14:47:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-19 14:47:49,992 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-19 14:47:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:47:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-19 14:47:49,993 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-19 14:47:49,993 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_eisa_cleanup [2021-11-19 14:47:49,993 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_eisa_cleanup [2021-11-19 14:47:49,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:47:49,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:47:49,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 14:47:49,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:47:49,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:47:49,994 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_print_list [2021-11-19 14:47:49,994 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_print_list [2021-11-19 14:47:49,994 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write16 [2021-11-19 14:47:49,994 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write16 [2021-11-19 14:47:49,994 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-11-19 14:47:49,994 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-11-19 14:47:49,994 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 14:47:49,994 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 14:47:49,995 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-19 14:47:49,995 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-19 14:47:49,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 14:47:49,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 14:47:49,996 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-11-19 14:47:49,996 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-11-19 14:47:49,996 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_finish_reset [2021-11-19 14:47:49,996 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_finish_reset [2021-11-19 14:47:49,996 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write32 [2021-11-19 14:47:49,997 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write32 [2021-11-19 14:47:49,997 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-19 14:47:49,998 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-19 14:47:49,998 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 14:47:49,998 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 14:47:49,998 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_mac [2021-11-19 14:47:49,998 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_mac [2021-11-19 14:47:49,998 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-19 14:47:49,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-19 14:47:49,998 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_start [2021-11-19 14:47:49,998 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_start [2021-11-19 14:47:49,999 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read32 [2021-11-19 14:47:49,999 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read32 [2021-11-19 14:47:49,999 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write8 [2021-11-19 14:47:49,999 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write8 [2021-11-19 14:47:49,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 14:47:49,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 14:47:49,999 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_power_down [2021-11-19 14:47:49,999 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_power_down [2021-11-19 14:47:49,999 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-19 14:47:49,999 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-19 14:47:50,000 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_adapter [2021-11-19 14:47:50,000 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_adapter [2021-11-19 14:47:50,000 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_send_data [2021-11-19 14:47:50,000 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_send_data [2021-11-19 14:47:50,000 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_read_reg [2021-11-19 14:47:50,000 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_read_reg [2021-11-19 14:47:50,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_97 [2021-11-19 14:47:50,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_97 [2021-11-19 14:47:50,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 14:47:50,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 14:47:50,001 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_open [2021-11-19 14:47:50,001 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_open [2021-11-19 14:47:50,001 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-19 14:47:50,001 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-19 14:47:50,001 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-19 14:47:50,001 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-19 14:47:50,001 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-11-19 14:47:50,001 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-11-19 14:47:50,001 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-11-19 14:47:50,001 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-11-19 14:47:50,002 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-11-19 14:47:50,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 14:47:50,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 14:47:50,002 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-19 14:47:50,002 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-19 14:47:50,002 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-11-19 14:47:50,002 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-11-19 14:47:50,999 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:47:51,005 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:48:00,614 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 14:48:33,774 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6907-1: tlan_eisa_probe_~tmp___0~12#1 := tlan_eisa_probe_#t~ret329#1;havoc tlan_eisa_probe_#t~ret329#1;havoc tlan_eisa_probe_#t~nondet330#1; [2021-11-19 14:48:33,774 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6907: SUMMARY for call tlan_eisa_probe_#t~ret329#1 := inw(~bvadd32(3202bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2021-11-19 14:48:33,774 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6974: assume 64bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2021-11-19 14:48:33,775 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6974: assume !(64bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1)); [2021-11-19 14:48:33,775 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6975: tlan_eisa_probe_~irq~0#1 := 10bv32; [2021-11-19 14:48:33,775 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6978: assume 128bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2021-11-19 14:48:33,775 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6978: assume !(128bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1)); [2021-11-19 14:48:33,775 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6912-1: call tlan_eisa_probe_#t~ret332#1.base, tlan_eisa_probe_#t~ret332#1.offset := __request_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16bv64, ~#tlan_signature~0.base, ~#tlan_signature~0.offset, 0bv32);tlan_eisa_probe_~tmp___1~5#1.base, tlan_eisa_probe_~tmp___1~5#1.offset := tlan_eisa_probe_#t~ret332#1.base, tlan_eisa_probe_#t~ret332#1.offset;havoc tlan_eisa_probe_#t~ret332#1.base, tlan_eisa_probe_#t~ret332#1.offset; [2021-11-19 14:48:33,776 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6979: tlan_eisa_probe_~irq~0#1 := 11bv32; [2021-11-19 14:48:33,776 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6982: assume 16bv32 == ~debug~0;havoc tlan_eisa_probe_#t~nondet339#1; [2021-11-19 14:48:33,776 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6982: assume !(16bv32 == ~debug~0); [2021-11-19 14:48:33,776 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6922: assume 0bv64 == ~bvadd64(tlan_eisa_probe_~tmp___1~5#1.base, tlan_eisa_probe_~tmp___1~5#1.offset); [2021-11-19 14:48:33,777 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6922: assume !(0bv64 == ~bvadd64(tlan_eisa_probe_~tmp___1~5#1.base, tlan_eisa_probe_~tmp___1~5#1.offset)); [2021-11-19 14:48:33,777 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6927-1: tlan_eisa_probe_~tmp___2~2#1 := tlan_eisa_probe_#t~ret333#1;havoc tlan_eisa_probe_#t~ret333#1; [2021-11-19 14:48:33,777 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6927: SUMMARY for call tlan_eisa_probe_#t~ret333#1 := inw(~bvadd32(3200bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2021-11-19 14:48:33,777 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6994: SUMMARY for call tlan_eisa_probe_#t~ret338#1 := tlan_probe1(0bv64, 0bv64, tlan_eisa_probe_~ioaddr~0#1, tlan_eisa_probe_~irq~0#1, 12bv32, 0bv64, 0bv64); srcloc: null [2021-11-19 14:48:33,777 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6929: assume 4366bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~tmp___2~2#1); [2021-11-19 14:48:33,778 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6929: assume !(4366bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~tmp___2~2#1)); [2021-11-19 14:48:33,778 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6931: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16bv64); srcloc: null [2021-11-19 14:48:33,778 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7001: tlan_eisa_probe_~rc~2#1 := tlan_eisa_probe_#t~ret338#1;havoc tlan_eisa_probe_#t~ret338#1; [2021-11-19 14:48:33,778 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6937-1: tlan_eisa_probe_~device_id~1#1 := tlan_eisa_probe_#t~ret334#1;havoc tlan_eisa_probe_#t~ret334#1; [2021-11-19 14:48:33,778 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6937: SUMMARY for call tlan_eisa_probe_#t~ret334#1 := inw(~bvadd32(3202bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2021-11-19 14:48:33,779 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6939: assume 8433bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~device_id~1#1) && 16625bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~device_id~1#1); [2021-11-19 14:48:33,783 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6939: assume !(8433bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~device_id~1#1) && 16625bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~device_id~1#1)); [2021-11-19 14:48:33,783 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6941: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16bv64); srcloc: null [2021-11-19 14:48:33,783 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947-1: tlan_eisa_probe_~tmp___3~1#1 := tlan_eisa_probe_#t~ret335#1;havoc tlan_eisa_probe_#t~ret335#1; [2021-11-19 14:48:33,783 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947: SUMMARY for call tlan_eisa_probe_#t~ret335#1 := inb(~bvadd32(3204bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2021-11-19 14:48:33,784 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7013-1: tlan_eisa_probe_~ioaddr~0#1 := ~bvadd64(4096bv64, tlan_eisa_probe_~ioaddr~0#1); [2021-11-19 14:48:33,784 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6949: assume 1bv32 != ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___3~1#1); [2021-11-19 14:48:33,784 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6949: assume !(1bv32 != ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___3~1#1)); [2021-11-19 14:48:33,784 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6951-1: assume 16bv32 == ~debug~0;havoc tlan_eisa_probe_#t~nondet340#1; [2021-11-19 14:48:33,784 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6951-1: assume !(16bv32 == ~debug~0); [2021-11-19 14:48:33,785 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6951: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16bv64); srcloc: null [2021-11-19 14:48:33,785 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7022: assume ~bvsle64(tlan_eisa_probe_~ioaddr~0#1, 36863bv64); [2021-11-19 14:48:33,785 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7022: assume !~bvsle64(tlan_eisa_probe_~ioaddr~0#1, 36863bv64); [2021-11-19 14:48:33,785 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6956-2: SUMMARY for call tlan_eisa_probe_#t~ret337#1 := inb(~bvadd32(3264bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2021-11-19 14:48:33,785 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6956: assume 16bv32 == ~debug~0;havoc tlan_eisa_probe_#t~nondet336#1; [2021-11-19 14:48:33,786 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6956: assume !(16bv32 == ~debug~0); [2021-11-19 14:48:33,786 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7024: assume 0bv32 != ~bvand32(16bv32, ~debug~0); [2021-11-19 14:48:33,786 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7024: assume !(0bv32 != ~bvand32(16bv32, ~debug~0)); [2021-11-19 14:48:33,786 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6963: tlan_eisa_probe_~tmp___4~0#1 := tlan_eisa_probe_#t~ret337#1;havoc tlan_eisa_probe_#t~ret337#1; [2021-11-19 14:48:33,786 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6898-1: assume 0bv32 != ~bvand32(16bv32, ~debug~0); [2021-11-19 14:48:33,786 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6898-1: assume !(0bv32 != ~bvand32(16bv32, ~debug~0)); [2021-11-19 14:48:33,787 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 14:48:33,787 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6966: assume 16bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2021-11-19 14:48:33,787 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6966: assume !(16bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1)); [2021-11-19 14:48:33,787 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6900-1: tlan_eisa_probe_~tmp~35#1 := tlan_eisa_probe_#t~ret327#1;havoc tlan_eisa_probe_#t~ret327#1;havoc tlan_eisa_probe_#t~nondet328#1; [2021-11-19 14:48:33,787 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6900: SUMMARY for call tlan_eisa_probe_#t~ret327#1 := inw(~bvadd32(3200bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2021-11-19 14:48:33,788 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6967: tlan_eisa_probe_~irq~0#1 := 5bv32; [2021-11-19 14:48:33,788 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6970: assume 32bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2021-11-19 14:48:33,788 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6970: assume !(32bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1)); [2021-11-19 14:48:33,788 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6971: tlan_eisa_probe_~irq~0#1 := 9bv32; [2021-11-19 14:48:33,788 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6905-1: assume 0bv32 != ~bvand32(16bv32, ~debug~0);havoc tlan_eisa_probe_#t~nondet331#1; [2021-11-19 14:48:33,788 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6905-1: assume !(0bv32 != ~bvand32(16bv32, ~debug~0)); [2021-11-19 14:48:33,877 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:48:33,903 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:48:33,907 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 14:48:33,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:48:33 BoogieIcfgContainer [2021-11-19 14:48:33,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:48:33,916 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:48:33,916 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:48:33,919 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:48:33,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:47:43" (1/3) ... [2021-11-19 14:48:33,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e31fba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:48:33, skipping insertion in model container [2021-11-19 14:48:33,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:48" (2/3) ... [2021-11-19 14:48:33,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e31fba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:48:33, skipping insertion in model container [2021-11-19 14:48:33,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:48:33" (3/3) ... [2021-11-19 14:48:33,922 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2021-11-19 14:48:33,929 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:48:33,929 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:48:34,009 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:48:34,026 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:48:34,026 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:48:34,104 INFO L276 IsEmpty]: Start isEmpty. Operand has 2107 states, 1384 states have (on average 1.2695086705202312) internal successors, (1757), 1426 states have internal predecessors, (1757), 619 states have call successors, (619), 104 states have call predecessors, (619), 103 states have return successors, (614), 600 states have call predecessors, (614), 614 states have call successors, (614) [2021-11-19 14:48:34,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-19 14:48:34,131 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:48:34,132 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 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] [2021-11-19 14:48:34,132 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:48:34,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:48:34,138 INFO L85 PathProgramCache]: Analyzing trace with hash -102264943, now seen corresponding path program 1 times [2021-11-19 14:48:34,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:48:34,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1511081415] [2021-11-19 14:48:34,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:48:34,159 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:48:34,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:48:34,162 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:48:34,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:48:36,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:48:36,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 1876 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:48:36,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:48:36,695 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-11-19 14:48:36,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:48:37,184 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-11-19 14:48:37,185 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:48:37,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1511081415] [2021-11-19 14:48:37,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1511081415] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:48:37,186 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:48:37,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:48:37,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207242860] [2021-11-19 14:48:37,189 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:48:37,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:48:37,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:48:37,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:48:37,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:48:37,247 INFO L87 Difference]: Start difference. First operand has 2107 states, 1384 states have (on average 1.2695086705202312) internal successors, (1757), 1426 states have internal predecessors, (1757), 619 states have call successors, (619), 104 states have call predecessors, (619), 103 states have return successors, (614), 600 states have call predecessors, (614), 614 states have call successors, (614) Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 4 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-19 14:48:39,456 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:48:47,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:48:47,565 INFO L93 Difference]: Finished difference Result 6393 states and 9383 transitions. [2021-11-19 14:48:47,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:48:47,568 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 4 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 126 [2021-11-19 14:48:47,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:48:47,650 INFO L225 Difference]: With dead ends: 6393 [2021-11-19 14:48:47,650 INFO L226 Difference]: Without dead ends: 4228 [2021-11-19 14:48:47,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:48:47,697 INFO L933 BasicCegarLoop]: 3711 mSDtfsCounter, 5939 mSDsluCounter, 2571 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 1186 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5939 SdHoareTripleChecker+Valid, 6282 SdHoareTripleChecker+Invalid, 1967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1186 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:48:47,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5939 Valid, 6282 Invalid, 1967 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1186 Valid, 780 Invalid, 1 Unknown, 0 Unchecked, 9.7s Time] [2021-11-19 14:48:47,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4228 states. [2021-11-19 14:48:48,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4228 to 4202. [2021-11-19 14:48:48,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4202 states, 2839 states have (on average 1.2588939767523777) internal successors, (3574), 2932 states have internal predecessors, (3574), 1135 states have call successors, (1135), 261 states have call predecessors, (1135), 227 states have return successors, (1147), 1054 states have call predecessors, (1147), 1135 states have call successors, (1147) [2021-11-19 14:48:48,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4202 states to 4202 states and 5856 transitions. [2021-11-19 14:48:48,243 INFO L78 Accepts]: Start accepts. Automaton has 4202 states and 5856 transitions. Word has length 126 [2021-11-19 14:48:48,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:48:48,245 INFO L470 AbstractCegarLoop]: Abstraction has 4202 states and 5856 transitions. [2021-11-19 14:48:48,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 4 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-19 14:48:48,246 INFO L276 IsEmpty]: Start isEmpty. Operand 4202 states and 5856 transitions. [2021-11-19 14:48:48,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-19 14:48:48,256 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:48:48,257 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 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] [2021-11-19 14:48:48,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:48:48,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:48:48,481 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:48:48,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:48:48,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1299033063, now seen corresponding path program 1 times [2021-11-19 14:48:48,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:48:48,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1217114407] [2021-11-19 14:48:48,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:48:48,484 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:48:48,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:48:48,487 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:48:48,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:48:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:48:50,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 1829 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:48:50,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:48:50,789 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-11-19 14:48:50,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:48:51,248 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-11-19 14:48:51,249 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:48:51,249 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1217114407] [2021-11-19 14:48:51,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1217114407] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:48:51,249 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:48:51,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:48:51,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663539716] [2021-11-19 14:48:51,250 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:48:51,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:48:51,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:48:51,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:48:51,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:48:51,255 INFO L87 Difference]: Start difference. First operand 4202 states and 5856 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-19 14:48:53,400 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:48:54,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:48:54,145 INFO L93 Difference]: Finished difference Result 11970 states and 16926 transitions. [2021-11-19 14:48:54,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:48:54,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 130 [2021-11-19 14:48:54,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:48:54,254 INFO L225 Difference]: With dead ends: 11970 [2021-11-19 14:48:54,255 INFO L226 Difference]: Without dead ends: 7785 [2021-11-19 14:48:54,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:48:54,294 INFO L933 BasicCegarLoop]: 3696 mSDtfsCounter, 2905 mSDsluCounter, 2847 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2905 SdHoareTripleChecker+Valid, 6543 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:48:54,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2905 Valid, 6543 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 51 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-19 14:48:54,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7785 states. [2021-11-19 14:48:54,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7785 to 7757. [2021-11-19 14:48:54,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7757 states, 5197 states have (on average 1.2501443140273234) internal successors, (6497), 5373 states have internal predecessors, (6497), 2122 states have call successors, (2122), 503 states have call predecessors, (2122), 437 states have return successors, (2427), 1966 states have call predecessors, (2427), 2122 states have call successors, (2427) [2021-11-19 14:48:54,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7757 states to 7757 states and 11046 transitions. [2021-11-19 14:48:54,917 INFO L78 Accepts]: Start accepts. Automaton has 7757 states and 11046 transitions. Word has length 130 [2021-11-19 14:48:54,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:48:54,919 INFO L470 AbstractCegarLoop]: Abstraction has 7757 states and 11046 transitions. [2021-11-19 14:48:54,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-19 14:48:54,919 INFO L276 IsEmpty]: Start isEmpty. Operand 7757 states and 11046 transitions. [2021-11-19 14:48:54,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-19 14:48:54,924 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:48:54,925 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 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] [2021-11-19 14:48:54,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:48:55,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:48:55,141 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:48:55,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:48:55,142 INFO L85 PathProgramCache]: Analyzing trace with hash -144100150, now seen corresponding path program 1 times [2021-11-19 14:48:55,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:48:55,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [541469577] [2021-11-19 14:48:55,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:48:55,144 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:48:55,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:48:55,146 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:48:55,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:48:57,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:48:57,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 1865 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:48:57,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:48:57,769 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-11-19 14:48:57,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:48:58,292 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-11-19 14:48:58,293 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:48:58,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [541469577] [2021-11-19 14:48:58,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [541469577] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:48:58,293 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:48:58,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:48:58,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290254865] [2021-11-19 14:48:58,294 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:48:58,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:48:58,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:48:58,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:48:58,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:48:58,296 INFO L87 Difference]: Start difference. First operand 7757 states and 11046 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 4 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2021-11-19 14:49:00,430 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:49:09,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:49:09,941 INFO L93 Difference]: Finished difference Result 29798 states and 42985 transitions. [2021-11-19 14:49:09,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:49:09,942 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 4 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 149 [2021-11-19 14:49:09,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:49:10,293 INFO L225 Difference]: With dead ends: 29798 [2021-11-19 14:49:10,295 INFO L226 Difference]: Without dead ends: 22058 [2021-11-19 14:49:10,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:49:10,384 INFO L933 BasicCegarLoop]: 4462 mSDtfsCounter, 6155 mSDsluCounter, 6682 mSDsCounter, 0 mSdLazyCounter, 1188 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6155 SdHoareTripleChecker+Valid, 11144 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1188 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:49:10,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6155 Valid, 11144 Invalid, 1204 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 1188 Invalid, 1 Unknown, 0 Unchecked, 10.3s Time] [2021-11-19 14:49:10,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22058 states. [2021-11-19 14:49:12,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22058 to 22026. [2021-11-19 14:49:12,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22026 states, 14687 states have (on average 1.2475658745829645) internal successors, (18323), 15211 states have internal predecessors, (18323), 6069 states have call successors, (6069), 1482 states have call predecessors, (6069), 1269 states have return successors, (7509), 5572 states have call predecessors, (7509), 6069 states have call successors, (7509) [2021-11-19 14:49:12,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22026 states to 22026 states and 31901 transitions. [2021-11-19 14:49:12,318 INFO L78 Accepts]: Start accepts. Automaton has 22026 states and 31901 transitions. Word has length 149 [2021-11-19 14:49:12,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:49:12,319 INFO L470 AbstractCegarLoop]: Abstraction has 22026 states and 31901 transitions. [2021-11-19 14:49:12,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 4 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2021-11-19 14:49:12,320 INFO L276 IsEmpty]: Start isEmpty. Operand 22026 states and 31901 transitions. [2021-11-19 14:49:12,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-11-19 14:49:12,330 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:49:12,331 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 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] [2021-11-19 14:49:12,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:49:12,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:49:12,546 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:49:12,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:49:12,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1069259354, now seen corresponding path program 1 times [2021-11-19 14:49:12,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:49:12,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [832749391] [2021-11-19 14:49:12,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:49:12,549 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:49:12,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:49:12,554 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:49:12,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:49:14,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:49:14,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 2075 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:49:14,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:49:15,649 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2021-11-19 14:49:15,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:49:16,568 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2021-11-19 14:49:16,569 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:49:16,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [832749391] [2021-11-19 14:49:16,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [832749391] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:49:16,569 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:49:16,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2021-11-19 14:49:16,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409154473] [2021-11-19 14:49:16,569 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:49:16,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:49:16,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:49:16,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:49:16,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:49:16,572 INFO L87 Difference]: Start difference. First operand 22026 states and 31901 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 4 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (42), 4 states have call predecessors, (42), 4 states have call successors, (42) [2021-11-19 14:49:19,601 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:49:29,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:49:29,947 INFO L93 Difference]: Finished difference Result 83263 states and 121387 transitions. [2021-11-19 14:49:29,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:49:29,948 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 4 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (42), 4 states have call predecessors, (42), 4 states have call successors, (42) Word has length 202 [2021-11-19 14:49:29,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:49:30,928 INFO L225 Difference]: With dead ends: 83263 [2021-11-19 14:49:30,928 INFO L226 Difference]: Without dead ends: 61254 [2021-11-19 14:49:31,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:49:31,200 INFO L933 BasicCegarLoop]: 4271 mSDtfsCounter, 6400 mSDsluCounter, 4352 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 1004 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6400 SdHoareTripleChecker+Valid, 8623 SdHoareTripleChecker+Invalid, 2194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1004 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:49:31,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6400 Valid, 8623 Invalid, 2194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1004 Valid, 1189 Invalid, 1 Unknown, 0 Unchecked, 11.0s Time] [2021-11-19 14:49:31,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61254 states. [2021-11-19 14:49:36,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61254 to 61034. [2021-11-19 14:49:36,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61034 states, 40892 states have (on average 1.2390687665068962) internal successors, (50668), 42297 states have internal predecessors, (50668), 16510 states have call successors, (16510), 4256 states have call predecessors, (16510), 3631 states have return successors, (20182), 15121 states have call predecessors, (20182), 16510 states have call successors, (20182) [2021-11-19 14:49:37,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61034 states to 61034 states and 87360 transitions. [2021-11-19 14:49:37,426 INFO L78 Accepts]: Start accepts. Automaton has 61034 states and 87360 transitions. Word has length 202 [2021-11-19 14:49:37,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:49:37,427 INFO L470 AbstractCegarLoop]: Abstraction has 61034 states and 87360 transitions. [2021-11-19 14:49:37,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 4 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (42), 4 states have call predecessors, (42), 4 states have call successors, (42) [2021-11-19 14:49:37,428 INFO L276 IsEmpty]: Start isEmpty. Operand 61034 states and 87360 transitions. [2021-11-19 14:49:37,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-19 14:49:37,440 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:49:37,440 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 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] [2021-11-19 14:49:37,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:49:37,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:49:37,659 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:49:37,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:49:37,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1404512319, now seen corresponding path program 1 times [2021-11-19 14:49:37,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:49:37,663 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1590783538] [2021-11-19 14:49:37,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:49:37,663 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:49:37,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:49:37,667 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:49:37,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:49:39,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:49:39,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 2088 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:49:39,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:49:40,859 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 66 proven. 3 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2021-11-19 14:49:40,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:49:41,889 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2021-11-19 14:49:41,889 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:49:41,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1590783538] [2021-11-19 14:49:41,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1590783538] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:49:41,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [146629097] [2021-11-19 14:49:41,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:49:41,891 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:49:41,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:49:41,898 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:49:41,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-19 14:49:43,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:49:43,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 2088 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:49:43,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:49:45,089 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-19 14:49:45,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:49:46,405 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-19 14:49:46,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [146629097] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:49:46,405 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:49:46,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 4] imperfect sequences [8, 8] total 12 [2021-11-19 14:49:46,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611356377] [2021-11-19 14:49:46,406 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:49:46,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:49:46,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:49:46,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:49:46,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:49:46,409 INFO L87 Difference]: Start difference. First operand 61034 states and 87360 transitions. Second operand has 5 states, 5 states have (on average 40.2) internal successors, (201), 5 states have internal predecessors, (201), 3 states have call successors, (50), 3 states have call predecessors, (50), 4 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-19 14:49:48,581 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:49:59,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:49:59,239 INFO L93 Difference]: Finished difference Result 122051 states and 175498 transitions. [2021-11-19 14:49:59,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:49:59,240 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.2) internal successors, (201), 5 states have internal predecessors, (201), 3 states have call successors, (50), 3 states have call predecessors, (50), 4 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) Word has length 207 [2021-11-19 14:49:59,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:49:59,890 INFO L225 Difference]: With dead ends: 122051 [2021-11-19 14:49:59,891 INFO L226 Difference]: Without dead ends: 61034 [2021-11-19 14:50:00,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 824 GetRequests, 814 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:50:00,512 INFO L933 BasicCegarLoop]: 2922 mSDtfsCounter, 4441 mSDsluCounter, 1729 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 1170 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4441 SdHoareTripleChecker+Valid, 4651 SdHoareTripleChecker+Invalid, 2365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1170 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:50:00,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4441 Valid, 4651 Invalid, 2365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1170 Valid, 1194 Invalid, 1 Unknown, 0 Unchecked, 9.6s Time] [2021-11-19 14:50:00,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61034 states. [2021-11-19 14:50:04,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61034 to 61034. [2021-11-19 14:50:04,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61034 states, 40892 states have (on average 1.2378460334539763) internal successors, (50618), 42297 states have internal predecessors, (50618), 16510 states have call successors, (16510), 4256 states have call predecessors, (16510), 3631 states have return successors, (20182), 15121 states have call predecessors, (20182), 16510 states have call successors, (20182) [2021-11-19 14:50:05,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61034 states to 61034 states and 87310 transitions. [2021-11-19 14:50:05,294 INFO L78 Accepts]: Start accepts. Automaton has 61034 states and 87310 transitions. Word has length 207 [2021-11-19 14:50:05,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:50:05,296 INFO L470 AbstractCegarLoop]: Abstraction has 61034 states and 87310 transitions. [2021-11-19 14:50:05,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.2) internal successors, (201), 5 states have internal predecessors, (201), 3 states have call successors, (50), 3 states have call predecessors, (50), 4 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-19 14:50:05,297 INFO L276 IsEmpty]: Start isEmpty. Operand 61034 states and 87310 transitions. [2021-11-19 14:50:05,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-11-19 14:50:05,308 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:50:05,308 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 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] [2021-11-19 14:50:05,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:50:05,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:50:05,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:50:05,736 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:50:05,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:50:05,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1331094543, now seen corresponding path program 1 times [2021-11-19 14:50:05,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:50:05,740 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [144455990] [2021-11-19 14:50:05,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:50:05,741 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:50:05,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:50:05,742 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:50:05,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:50:07,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:50:07,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 2076 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:50:07,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:50:08,812 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 66 proven. 3 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2021-11-19 14:50:08,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:50:09,641 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2021-11-19 14:50:09,642 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:50:09,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [144455990] [2021-11-19 14:50:09,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [144455990] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:50:09,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [911444157] [2021-11-19 14:50:09,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:50:09,643 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:50:09,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:50:09,644 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:50:09,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-19 14:50:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:50:10,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 2076 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:50:10,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:50:12,475 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-19 14:50:12,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:50:13,553 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-19 14:50:13,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [911444157] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:50:13,553 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:50:13,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 4] imperfect sequences [8, 8] total 12 [2021-11-19 14:50:13,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766900132] [2021-11-19 14:50:13,554 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:50:13,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:50:13,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:50:13,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:50:13,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:50:13,556 INFO L87 Difference]: Start difference. First operand 61034 states and 87310 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 3 states have call successors, (50), 3 states have call predecessors, (50), 4 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-19 14:50:15,694 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:50:25,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:50:25,307 INFO L93 Difference]: Finished difference Result 122051 states and 175398 transitions. [2021-11-19 14:50:25,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:50:25,308 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 3 states have call successors, (50), 3 states have call predecessors, (50), 4 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) Word has length 203 [2021-11-19 14:50:25,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:50:25,833 INFO L225 Difference]: With dead ends: 122051 [2021-11-19 14:50:25,833 INFO L226 Difference]: Without dead ends: 61034 [2021-11-19 14:50:26,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 808 GetRequests, 798 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:50:26,399 INFO L933 BasicCegarLoop]: 2921 mSDtfsCounter, 2811 mSDsluCounter, 1728 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2811 SdHoareTripleChecker+Valid, 4649 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:50:26,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2811 Valid, 4649 Invalid, 1217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1194 Invalid, 1 Unknown, 0 Unchecked, 8.6s Time] [2021-11-19 14:50:26,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61034 states. [2021-11-19 14:50:29,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61034 to 61034. [2021-11-19 14:50:29,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61034 states, 40892 states have (on average 1.2366233004010565) internal successors, (50568), 42297 states have internal predecessors, (50568), 16510 states have call successors, (16510), 4256 states have call predecessors, (16510), 3631 states have return successors, (20182), 15121 states have call predecessors, (20182), 16510 states have call successors, (20182) [2021-11-19 14:50:30,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61034 states to 61034 states and 87260 transitions. [2021-11-19 14:50:30,541 INFO L78 Accepts]: Start accepts. Automaton has 61034 states and 87260 transitions. Word has length 203 [2021-11-19 14:50:30,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:50:30,543 INFO L470 AbstractCegarLoop]: Abstraction has 61034 states and 87260 transitions. [2021-11-19 14:50:30,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 3 states have call successors, (50), 3 states have call predecessors, (50), 4 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-19 14:50:30,543 INFO L276 IsEmpty]: Start isEmpty. Operand 61034 states and 87260 transitions. [2021-11-19 14:50:30,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-11-19 14:50:30,554 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:50:30,555 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 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] [2021-11-19 14:50:30,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 14:50:30,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-11-19 14:50:30,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:50:30,969 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:50:30,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:50:30,970 INFO L85 PathProgramCache]: Analyzing trace with hash -410891068, now seen corresponding path program 1 times [2021-11-19 14:50:30,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:50:30,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [983964423] [2021-11-19 14:50:30,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:50:30,973 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:50:30,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:50:30,973 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:50:31,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 14:50:33,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:50:33,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 2077 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:50:33,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:50:34,113 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 66 proven. 3 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2021-11-19 14:50:34,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:50:34,836 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2021-11-19 14:50:34,837 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:50:34,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [983964423] [2021-11-19 14:50:34,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [983964423] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:50:34,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1622006870] [2021-11-19 14:50:34,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:50:34,837 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:50:34,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:50:34,838 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:50:34,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-11-19 14:50:36,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:50:36,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 2077 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:50:36,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:50:37,625 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-19 14:50:37,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:50:38,802 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-19 14:50:38,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1622006870] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:50:38,803 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:50:38,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 4] imperfect sequences [8, 8] total 12 [2021-11-19 14:50:38,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769400618] [2021-11-19 14:50:38,803 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:50:38,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:50:38,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:50:38,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:50:38,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:50:38,806 INFO L87 Difference]: Start difference. First operand 61034 states and 87260 transitions. Second operand has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 3 states have call successors, (50), 3 states have call predecessors, (50), 4 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-19 14:50:40,976 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:50:50,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:50:50,731 INFO L93 Difference]: Finished difference Result 122051 states and 175298 transitions. [2021-11-19 14:50:50,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:50:50,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 3 states have call successors, (50), 3 states have call predecessors, (50), 4 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) Word has length 204 [2021-11-19 14:50:50,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:50:51,307 INFO L225 Difference]: With dead ends: 122051 [2021-11-19 14:50:51,308 INFO L226 Difference]: Without dead ends: 61034 [2021-11-19 14:50:51,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 812 GetRequests, 802 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:50:51,587 INFO L933 BasicCegarLoop]: 2920 mSDtfsCounter, 2810 mSDsluCounter, 1727 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2810 SdHoareTripleChecker+Valid, 4647 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:50:51,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2810 Valid, 4647 Invalid, 1217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1194 Invalid, 1 Unknown, 0 Unchecked, 8.7s Time] [2021-11-19 14:50:51,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61034 states. [2021-11-19 14:50:54,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61034 to 61034. [2021-11-19 14:50:54,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61034 states, 40892 states have (on average 1.2354005673481365) internal successors, (50518), 42297 states have internal predecessors, (50518), 16510 states have call successors, (16510), 4256 states have call predecessors, (16510), 3631 states have return successors, (20182), 15121 states have call predecessors, (20182), 16510 states have call successors, (20182) [2021-11-19 14:50:55,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61034 states to 61034 states and 87210 transitions. [2021-11-19 14:50:55,310 INFO L78 Accepts]: Start accepts. Automaton has 61034 states and 87210 transitions. Word has length 204 [2021-11-19 14:50:55,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:50:55,311 INFO L470 AbstractCegarLoop]: Abstraction has 61034 states and 87210 transitions. [2021-11-19 14:50:55,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 3 states have call successors, (50), 3 states have call predecessors, (50), 4 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-19 14:50:55,312 INFO L276 IsEmpty]: Start isEmpty. Operand 61034 states and 87210 transitions. [2021-11-19 14:50:55,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-11-19 14:50:55,321 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:50:55,322 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 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] [2021-11-19 14:50:55,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 14:50:55,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-11-19 14:50:55,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:50:55,745 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:50:55,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:50:55,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1834837811, now seen corresponding path program 1 times [2021-11-19 14:50:55,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:50:55,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1313422750] [2021-11-19 14:50:55,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:50:55,747 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:50:55,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:50:55,749 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:50:55,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 14:50:57,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:50:57,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 2078 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:50:57,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:50:58,210 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 66 proven. 3 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2021-11-19 14:50:58,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:50:59,044 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2021-11-19 14:50:59,044 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:50:59,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1313422750] [2021-11-19 14:50:59,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1313422750] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:50:59,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [372503337] [2021-11-19 14:50:59,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:50:59,044 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:50:59,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:50:59,049 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:50:59,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-11-19 14:51:00,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:51:00,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 2078 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:51:00,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:51:01,810 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-19 14:51:01,811 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:51:02,811 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-19 14:51:02,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [372503337] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:51:02,811 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:51:02,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 4] imperfect sequences [8, 8] total 12 [2021-11-19 14:51:02,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989727690] [2021-11-19 14:51:02,812 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:51:02,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:51:02,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:51:02,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:51:02,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:51:02,813 INFO L87 Difference]: Start difference. First operand 61034 states and 87210 transitions. Second operand has 5 states, 5 states have (on average 39.4) internal successors, (197), 5 states have internal predecessors, (197), 3 states have call successors, (50), 3 states have call predecessors, (50), 4 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-19 14:51:04,938 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:51:14,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:51:14,931 INFO L93 Difference]: Finished difference Result 122051 states and 175198 transitions. [2021-11-19 14:51:14,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:51:14,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 5 states have internal predecessors, (197), 3 states have call successors, (50), 3 states have call predecessors, (50), 4 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) Word has length 205 [2021-11-19 14:51:14,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:51:15,384 INFO L225 Difference]: With dead ends: 122051 [2021-11-19 14:51:15,384 INFO L226 Difference]: Without dead ends: 61034 [2021-11-19 14:51:15,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 816 GetRequests, 806 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:51:15,687 INFO L933 BasicCegarLoop]: 2919 mSDtfsCounter, 4442 mSDsluCounter, 1726 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 1170 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4442 SdHoareTripleChecker+Valid, 4645 SdHoareTripleChecker+Invalid, 2365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1170 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:51:15,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4442 Valid, 4645 Invalid, 2365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1170 Valid, 1194 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2021-11-19 14:51:15,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61034 states. [2021-11-19 14:51:19,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61034 to 61034. [2021-11-19 14:51:19,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61034 states, 40892 states have (on average 1.2341778342952168) internal successors, (50468), 42297 states have internal predecessors, (50468), 16510 states have call successors, (16510), 4256 states have call predecessors, (16510), 3631 states have return successors, (20182), 15121 states have call predecessors, (20182), 16510 states have call successors, (20182) [2021-11-19 14:51:19,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61034 states to 61034 states and 87160 transitions. [2021-11-19 14:51:19,504 INFO L78 Accepts]: Start accepts. Automaton has 61034 states and 87160 transitions. Word has length 205 [2021-11-19 14:51:19,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:51:19,505 INFO L470 AbstractCegarLoop]: Abstraction has 61034 states and 87160 transitions. [2021-11-19 14:51:19,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 5 states have internal predecessors, (197), 3 states have call successors, (50), 3 states have call predecessors, (50), 4 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-19 14:51:19,505 INFO L276 IsEmpty]: Start isEmpty. Operand 61034 states and 87160 transitions. [2021-11-19 14:51:19,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-11-19 14:51:19,513 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:51:19,513 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 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] [2021-11-19 14:51:19,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-19 14:51:19,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-11-19 14:51:19,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:51:19,938 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:51:19,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:51:19,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1381970016, now seen corresponding path program 1 times [2021-11-19 14:51:19,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:51:19,940 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [721396703] [2021-11-19 14:51:19,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:51:19,940 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:51:19,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:51:19,942 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:51:19,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-19 14:51:21,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:51:21,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 2079 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:51:21,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:51:22,468 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 66 proven. 3 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2021-11-19 14:51:22,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:51:23,198 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2021-11-19 14:51:23,198 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:51:23,199 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [721396703] [2021-11-19 14:51:23,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [721396703] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:51:23,199 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1916249948] [2021-11-19 14:51:23,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:51:23,199 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:51:23,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:51:23,200 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:51:23,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b88e3-99d5-47de-a71c-116d7083382a/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2021-11-19 14:51:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:51:24,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 2079 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:51:24,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:51:26,161 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-19 14:51:26,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:51:27,201 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-19 14:51:27,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1916249948] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:51:27,202 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:51:27,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 4] imperfect sequences [8, 8] total 12 [2021-11-19 14:51:27,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899499106] [2021-11-19 14:51:27,202 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:51:27,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:51:27,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:51:27,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:51:27,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:51:27,204 INFO L87 Difference]: Start difference. First operand 61034 states and 87160 transitions. Second operand has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 3 states have call successors, (50), 3 states have call predecessors, (50), 4 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-19 14:51:29,391 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:51:38,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:51:38,617 INFO L93 Difference]: Finished difference Result 122051 states and 175098 transitions. [2021-11-19 14:51:38,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:51:38,618 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 3 states have call successors, (50), 3 states have call predecessors, (50), 4 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) Word has length 206 [2021-11-19 14:51:38,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:51:39,232 INFO L225 Difference]: With dead ends: 122051 [2021-11-19 14:51:39,232 INFO L226 Difference]: Without dead ends: 61034 [2021-11-19 14:51:39,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 820 GetRequests, 810 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:51:39,558 INFO L933 BasicCegarLoop]: 2918 mSDtfsCounter, 2808 mSDsluCounter, 1725 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2808 SdHoareTripleChecker+Valid, 4643 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2021-11-19 14:51:39,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2808 Valid, 4643 Invalid, 1217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1194 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2021-11-19 14:51:39,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61034 states.