./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 81d3a41c14974620b49988c1780c7d5a75f04674e564d23c865943e8c9fe2089 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:30:59,453 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:30:59,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:30:59,496 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:30:59,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:30:59,498 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:30:59,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:30:59,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:30:59,504 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:30:59,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:30:59,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:30:59,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:30:59,511 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:30:59,512 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:30:59,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:30:59,518 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:30:59,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:30:59,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:30:59,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:30:59,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:30:59,534 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:30:59,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:30:59,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:30:59,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:30:59,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:30:59,549 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:30:59,549 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:30:59,551 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:30:59,552 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:30:59,553 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:30:59,554 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:30:59,555 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:30:59,557 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:30:59,558 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:30:59,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:30:59,560 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:30:59,561 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:30:59,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:30:59,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:30:59,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:30:59,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:30:59,564 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-13 02:30:59,612 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:30:59,615 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:30:59,616 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:30:59,617 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:30:59,617 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:30:59,617 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:30:59,617 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:30:59,618 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 02:30:59,624 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:30:59,624 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:30:59,625 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 02:30:59,626 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 02:30:59,626 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:30:59,626 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 02:30:59,627 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 02:30:59,627 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 02:30:59,628 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:30:59,628 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 02:30:59,628 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:30:59,628 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:30:59,628 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:30:59,629 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:30:59,629 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:30:59,629 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:30:59,629 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:30:59,630 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:30:59,630 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:30:59,630 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:30:59,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:30:59,632 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:30:59,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:30:59,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:30:59,633 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 02:30:59,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 02:30:59,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:30:59,634 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:30:59,634 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:30:59,634 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_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81d3a41c14974620b49988c1780c7d5a75f04674e564d23c865943e8c9fe2089 [2021-11-13 02:30:59,939 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:30:59,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:30:59,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:30:59,964 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:30:59,965 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:30:59,967 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2021-11-13 02:31:00,035 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/data/23d1ff92b/0e8119bf3afa434fbe96fae72e3b7d34/FLAG6283b2228 [2021-11-13 02:31:01,283 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:31:01,284 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2021-11-13 02:31:01,405 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/data/23d1ff92b/0e8119bf3afa434fbe96fae72e3b7d34/FLAG6283b2228 [2021-11-13 02:31:01,862 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/data/23d1ff92b/0e8119bf3afa434fbe96fae72e3b7d34 [2021-11-13 02:31:01,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:31:01,870 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:31:01,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:31:01,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:31:01,880 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:31:01,881 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:31:01" (1/1) ... [2021-11-13 02:31:01,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58fa194 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:01, skipping insertion in model container [2021-11-13 02:31:01,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:31:01" (1/1) ... [2021-11-13 02:31:01,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:31:02,178 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:31:04,902 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:04,904 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:04,987 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:05,024 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:07,511 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519506,519519] [2021-11-13 02:31:07,515 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519651,519664] [2021-11-13 02:31:07,570 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:31:07,686 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) [2021-11-13 02:31:07,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@53733c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:07, skipping insertion in model container [2021-11-13 02:31:07,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:31:07,688 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-13 02:31:07,691 INFO L158 Benchmark]: Toolchain (without parser) took 5818.98ms. Allocated memory was 123.7MB in the beginning and 247.5MB in the end (delta: 123.7MB). Free memory was 91.1MB in the beginning and 116.7MB in the end (delta: -25.6MB). Peak memory consumption was 97.7MB. Max. memory is 16.1GB. [2021-11-13 02:31:07,691 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 123.7MB. Free memory is still 99.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:31:07,693 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5811.86ms. Allocated memory was 123.7MB in the beginning and 247.5MB in the end (delta: 123.7MB). Free memory was 91.1MB in the beginning and 116.7MB in the end (delta: -25.6MB). Peak memory consumption was 97.7MB. Max. memory is 16.1GB. [2021-11-13 02:31:07,696 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 123.7MB. Free memory is still 99.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5811.86ms. Allocated memory was 123.7MB in the beginning and 247.5MB in the end (delta: 123.7MB). Free memory was 91.1MB in the beginning and 116.7MB in the end (delta: -25.6MB). Peak memory consumption was 97.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6853]: 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_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 81d3a41c14974620b49988c1780c7d5a75f04674e564d23c865943e8c9fe2089 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:31:10,464 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:31:10,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:31:10,536 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:31:10,537 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:31:10,542 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:31:10,546 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:31:10,552 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:31:10,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:31:10,566 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:31:10,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:31:10,571 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:31:10,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:31:10,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:31:10,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:31:10,582 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:31:10,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:31:10,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:31:10,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:31:10,607 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:31:10,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:31:10,611 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:31:10,616 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:31:10,618 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:31:10,629 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:31:10,630 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:31:10,630 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:31:10,633 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:31:10,634 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:31:10,635 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:31:10,636 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:31:10,637 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:31:10,640 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:31:10,641 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:31:10,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:31:10,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:31:10,645 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:31:10,645 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:31:10,646 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:31:10,648 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:31:10,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:31:10,650 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-13 02:31:10,709 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:31:10,709 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:31:10,711 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:31:10,712 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:31:10,712 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:31:10,712 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:31:10,712 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:31:10,713 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:31:10,713 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:31:10,713 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:31:10,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:31:10,717 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:31:10,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:31:10,718 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:31:10,718 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:31:10,718 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:31:10,718 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 02:31:10,719 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 02:31:10,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:31:10,719 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:31:10,720 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:31:10,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:31:10,720 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 02:31:10,720 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:31:10,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:31:10,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:31:10,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:31:10,722 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:31:10,722 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 02:31:10,722 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 02:31:10,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:31:10,723 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:31:10,723 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:31:10,723 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_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81d3a41c14974620b49988c1780c7d5a75f04674e564d23c865943e8c9fe2089 [2021-11-13 02:31:11,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:31:11,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:31:11,235 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:31:11,236 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:31:11,237 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:31:11,239 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2021-11-13 02:31:11,324 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/data/1b64e5667/78630450f3de432481e4dfa896486d71/FLAGb35439a5d [2021-11-13 02:31:12,847 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:31:12,848 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2021-11-13 02:31:12,949 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/data/1b64e5667/78630450f3de432481e4dfa896486d71/FLAGb35439a5d [2021-11-13 02:31:13,382 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/data/1b64e5667/78630450f3de432481e4dfa896486d71 [2021-11-13 02:31:13,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:31:13,388 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:31:13,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:31:13,390 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:31:13,394 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:31:13,395 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:31:13" (1/1) ... [2021-11-13 02:31:13,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66eadfdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:13, skipping insertion in model container [2021-11-13 02:31:13,397 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:31:13" (1/1) ... [2021-11-13 02:31:13,411 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:31:13,698 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:31:19,460 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519506,519519] [2021-11-13 02:31:19,464 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519651,519664] [2021-11-13 02:31:19,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:31:19,672 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 02:31:19,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:31:20,591 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519506,519519] [2021-11-13 02:31:20,592 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519651,519664] [2021-11-13 02:31:20,601 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:31:20,750 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 02:31:21,520 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519506,519519] [2021-11-13 02:31:21,521 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519651,519664] [2021-11-13 02:31:21,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:31:22,021 INFO L208 MainTranslator]: Completed translation [2021-11-13 02:31:22,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:22 WrapperNode [2021-11-13 02:31:22,022 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:31:22,024 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 02:31:22,024 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 02:31:22,024 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 02:31:22,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:22" (1/1) ... [2021-11-13 02:31:22,240 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:22" (1/1) ... [2021-11-13 02:31:22,782 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 02:31:22,783 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 02:31:22,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 02:31:22,783 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 02:31:22,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:22" (1/1) ... [2021-11-13 02:31:22,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:22" (1/1) ... [2021-11-13 02:31:22,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:22" (1/1) ... [2021-11-13 02:31:22,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:22" (1/1) ... [2021-11-13 02:31:23,173 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:22" (1/1) ... [2021-11-13 02:31:23,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:22" (1/1) ... [2021-11-13 02:31:23,464 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:22" (1/1) ... [2021-11-13 02:31:23,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 02:31:23,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 02:31:23,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 02:31:23,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 02:31:23,540 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:22" (1/1) ... [2021-11-13 02:31:23,548 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:31:23,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:31:23,574 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 02:31:23,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 02:31:23,623 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-13 02:31:23,623 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-13 02:31:23,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-13 02:31:23,624 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-13 02:31:23,624 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-13 02:31:23,624 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-13 02:31:23,624 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_vfta [2021-11-13 02:31:23,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_vfta [2021-11-13 02:31:23,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 02:31:23,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 02:31:23,625 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_standby_eeprom [2021-11-13 02:31:23,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_standby_eeprom [2021-11-13 02:31:23,625 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-13 02:31:23,625 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-13 02:31:23,625 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-13 02:31:23,626 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-13 02:31:23,626 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-13 02:31:23,626 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-13 02:31:23,626 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-13 02:31:23,626 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-13 02:31:23,626 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_alloc_rx_buffers [2021-11-13 02:31:23,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_alloc_rx_buffers [2021-11-13 02:31:23,627 INFO L130 BoogieDeclarations]: Found specification of procedure mac_addr_valid [2021-11-13 02:31:23,627 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_addr_valid [2021-11-13 02:31:23,627 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_vlan_rx_add_vid [2021-11-13 02:31:23,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_vlan_rx_add_vid [2021-11-13 02:31:23,627 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_tx_resources [2021-11-13 02:31:23,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_tx_resources [2021-11-13 02:31:23,628 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-13 02:31:23,628 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-13 02:31:23,628 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_multi [2021-11-13 02:31:23,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_multi [2021-11-13 02:31:23,628 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-13 02:31:23,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-13 02:31:23,629 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_rar_set [2021-11-13 02:31:23,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_rar_set [2021-11-13 02:31:23,629 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-13 02:31:23,629 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-13 02:31:23,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-13 02:31:23,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-13 02:31:23,630 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-13 02:31:23,630 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-13 02:31:23,630 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-13 02:31:23,630 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-13 02:31:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_io_resume [2021-11-13 02:31:23,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_io_resume [2021-11-13 02:31:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-13 02:31:23,631 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-13 02:31:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-13 02:31:23,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-13 02:31:23,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 02:31:23,632 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-13 02:31:23,632 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-13 02:31:23,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 02:31:23,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-13 02:31:23,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-13 02:31:23,633 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_eeprom_checksum [2021-11-13 02:31:23,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_eeprom_checksum [2021-11-13 02:31:23,633 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-13 02:31:23,633 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-13 02:31:23,633 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_netpoll [2021-11-13 02:31:23,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_netpoll [2021-11-13 02:31:23,634 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-13 02:31:23,634 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-13 02:31:23,634 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_raise_clock [2021-11-13 02:31:23,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_raise_clock [2021-11-13 02:31:23,634 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_eeprom [2021-11-13 02:31:23,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_eeprom [2021-11-13 02:31:23,635 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-13 02:31:23,635 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-13 02:31:23,635 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_identify_xpak_vendor [2021-11-13 02:31:23,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_identify_xpak_vendor [2021-11-13 02:31:23,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-13 02:31:23,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-13 02:31:23,636 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_mac_reset [2021-11-13 02:31:23,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_mac_reset [2021-11-13 02:31:23,636 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_eeprom [2021-11-13 02:31:23,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_eeprom [2021-11-13 02:31:23,636 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-13 02:31:23,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-13 02:31:23,637 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_rx_resources [2021-11-13 02:31:23,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_rx_resources [2021-11-13 02:31:23,637 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-13 02:31:23,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-13 02:31:23,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-13 02:31:23,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-13 02:31:23,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-13 02:31:23,638 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-13 02:31:23,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-13 02:31:23,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-13 02:31:23,638 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-13 02:31:23,639 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-13 02:31:23,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-13 02:31:23,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-13 02:31:23,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-13 02:31:23,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-13 02:31:23,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-13 02:31:23,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-13 02:31:23,640 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_regs_len [2021-11-13 02:31:23,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_regs_len [2021-11-13 02:31:23,640 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-13 02:31:23,640 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-13 02:31:23,640 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-13 02:31:23,641 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-13 02:31:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_phy_reg [2021-11-13 02:31:23,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_phy_reg [2021-11-13 02:31:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_for_link [2021-11-13 02:31:23,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_for_link [2021-11-13 02:31:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_option [2021-11-13 02:31:23,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_option [2021-11-13 02:31:23,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 02:31:23,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-13 02:31:23,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-13 02:31:23,642 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-13 02:31:23,642 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-13 02:31:23,643 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-13 02:31:23,643 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-13 02:31:23,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-13 02:31:23,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-13 02:31:23,643 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-13 02:31:23,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-13 02:31:23,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 02:31:23,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-13 02:31:23,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-13 02:31:23,644 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 02:31:23,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 02:31:23,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-13 02:31:23,645 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_lower_clock [2021-11-13 02:31:23,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_lower_clock [2021-11-13 02:31:23,645 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_reset [2021-11-13 02:31:23,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_reset [2021-11-13 02:31:23,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-13 02:31:23,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-13 02:31:23,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-13 02:31:23,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-13 02:31:23,646 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_remove [2021-11-13 02:31:23,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_remove [2021-11-13 02:31:23,646 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-13 02:31:23,646 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-13 02:31:23,647 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_len [2021-11-13 02:31:23,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_len [2021-11-13 02:31:23,647 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-13 02:31:23,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-13 02:31:23,647 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_up [2021-11-13 02:31:23,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_up [2021-11-13 02:31:23,647 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_irq_enable [2021-11-13 02:31:23,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_irq_enable [2021-11-13 02:31:23,648 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-13 02:31:23,648 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-13 02:31:23,648 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-13 02:31:23,648 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-13 02:31:23,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-13 02:31:23,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-13 02:31:23,649 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_tx_resources [2021-11-13 02:31:23,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_tx_resources [2021-11-13 02:31:23,649 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_maybe_stop_tx [2021-11-13 02:31:23,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_maybe_stop_tx [2021-11-13 02:31:23,649 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_intr [2021-11-13 02:31:23,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_intr [2021-11-13 02:31:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-13 02:31:23,650 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-13 02:31:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-13 02:31:23,650 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-13 02:31:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-13 02:31:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_open [2021-11-13 02:31:23,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_open [2021-11-13 02:31:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 02:31:23,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 02:31:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-13 02:31:23,651 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-13 02:31:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-13 02:31:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-13 02:31:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-13 02:31:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-13 02:31:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 02:31:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 02:31:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-13 02:31:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 02:31:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 02:31:23,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 02:31:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-13 02:31:23,653 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-13 02:31:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-13 02:31:23,653 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-13 02:31:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_update_stats [2021-11-13 02:31:23,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_update_stats [2021-11-13 02:31:23,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-13 02:31:23,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-13 02:31:23,654 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_and_get_eeprom_data [2021-11-13 02:31:23,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_and_get_eeprom_data [2021-11-13 02:31:23,654 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-13 02:31:23,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-13 02:31:23,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 02:31:23,655 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 02:31:23,655 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-13 02:31:23,655 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-13 02:31:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2021-11-13 02:31:23,656 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2021-11-13 02:31:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_close [2021-11-13 02:31:23,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_close [2021-11-13 02:31:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-13 02:31:23,656 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-13 02:31:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-13 02:31:23,657 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-13 02:31:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-13 02:31:23,657 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-13 02:31:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-13 02:31:23,657 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-13 02:31:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 02:31:23,658 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-13 02:31:23,658 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-13 02:31:23,658 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-13 02:31:23,658 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-13 02:31:23,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 02:31:23,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-13 02:31:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-13 02:31:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-13 02:31:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2021-11-13 02:31:23,659 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2021-11-13 02:31:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 02:31:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 02:31:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-13 02:31:23,660 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-13 02:31:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-13 02:31:23,660 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-13 02:31:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-13 02:31:23,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-13 02:31:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-13 02:31:23,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-13 02:31:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_link_reset [2021-11-13 02:31:23,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_link_reset [2021-11-13 02:31:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_speed_duplex [2021-11-13 02:31:23,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_speed_duplex [2021-11-13 02:31:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-13 02:31:23,661 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-13 02:31:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2021-11-13 02:31:23,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2021-11-13 02:31:23,662 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-13 02:31:23,662 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-13 02:31:23,662 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-13 02:31:23,662 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-13 02:31:23,662 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-11-13 02:31:23,662 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-11-13 02:31:23,663 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-13 02:31:23,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-13 02:31:23,663 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-13 02:31:23,663 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-13 02:31:23,663 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_unmap_and_free_tx_resource [2021-11-13 02:31:23,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_unmap_and_free_tx_resource [2021-11-13 02:31:23,663 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-13 02:31:23,664 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-13 02:31:23,664 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-13 02:31:23,664 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-13 02:31:23,664 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_eeprom [2021-11-13 02:31:23,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_eeprom [2021-11-13 02:31:23,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-13 02:31:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-13 02:31:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-13 02:31:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-13 02:31:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 02:31:23,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 02:31:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_phy_reg [2021-11-13 02:31:23,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_phy_reg [2021-11-13 02:31:23,666 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-13 02:31:23,666 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-13 02:31:23,666 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_ee_mac_addr [2021-11-13 02:31:23,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_ee_mac_addr [2021-11-13 02:31:23,666 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-13 02:31:23,666 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-13 02:31:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-11-13 02:31:23,667 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-11-13 02:31:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_tx_ring [2021-11-13 02:31:23,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_tx_ring [2021-11-13 02:31:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2021-11-13 02:31:23,667 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2021-11-13 02:31:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-13 02:31:23,667 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-13 02:31:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_rx_ring [2021-11-13 02:31:23,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_rx_ring [2021-11-13 02:31:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_shift_out_bits [2021-11-13 02:31:23,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_shift_out_bits [2021-11-13 02:31:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_down [2021-11-13 02:31:23,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_down [2021-11-13 02:31:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_tx_timeout [2021-11-13 02:31:23,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_tx_timeout [2021-11-13 02:31:23,669 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_rx_resources [2021-11-13 02:31:23,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_rx_resources [2021-11-13 02:31:23,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-13 02:31:23,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-13 02:31:23,669 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-13 02:31:23,669 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-13 02:31:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-13 02:31:23,670 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-13 02:31:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-13 02:31:23,670 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-13 02:31:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-13 02:31:23,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-13 02:31:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-13 02:31:23,671 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_data [2021-11-13 02:31:23,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_data [2021-11-13 02:31:27,136 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 02:35:01,957 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 02:35:01,957 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 02:35:01,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:35:01 BoogieIcfgContainer [2021-11-13 02:35:01,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 02:35:01,966 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 02:35:01,967 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 02:35:01,969 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 02:35:01,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:31:13" (1/3) ... [2021-11-13 02:35:01,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1abdaff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:35:01, skipping insertion in model container [2021-11-13 02:35:01,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:22" (2/3) ... [2021-11-13 02:35:01,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1abdaff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:35:01, skipping insertion in model container [2021-11-13 02:35:01,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:35:01" (3/3) ... [2021-11-13 02:35:01,973 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2021-11-13 02:35:01,978 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 02:35:01,978 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-13 02:35:02,042 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 02:35:02,048 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 [2021-11-13 02:35:02,048 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-13 02:35:02,171 INFO L276 IsEmpty]: Start isEmpty. Operand has 3089 states, 2061 states have (on average 1.2518195050946144) internal successors, (2580), 2105 states have internal predecessors, (2580), 891 states have call successors, (891), 135 states have call predecessors, (891), 134 states have return successors, (887), 874 states have call predecessors, (887), 887 states have call successors, (887) [2021-11-13 02:35:02,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-13 02:35:02,204 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:35:02,205 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:35:02,206 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:35:02,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:35:02,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1574577654, now seen corresponding path program 1 times [2021-11-13 02:35:02,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:35:02,254 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [844946782] [2021-11-13 02:35:02,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:35:02,255 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:35:02,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:35:02,261 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:35:02,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 02:35:43,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:35:43,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 5241 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-13 02:35:43,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:35:45,562 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 106 proven. 3 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-11-13 02:35:45,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:35:47,334 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 3 proven. 33 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-11-13 02:35:47,335 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:35:47,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [844946782] [2021-11-13 02:35:47,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [844946782] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:35:47,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2069347888] [2021-11-13 02:35:47,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:35:47,337 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:35:47,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:35:47,339 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:35:47,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2021-11-13 02:35:54,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:35:54,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 5241 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:35:54,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:35:56,679 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-13 02:35:56,680 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:35:58,017 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-13 02:35:58,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2069347888] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:35:58,018 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-13 02:35:58,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 4] imperfect sequences [8, 8] total 12 [2021-11-13 02:35:58,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455924494] [2021-11-13 02:35:58,021 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:35:58,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:35:58,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:35:58,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:35:58,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-13 02:35:58,079 INFO L87 Difference]: Start difference. First operand has 3089 states, 2061 states have (on average 1.2518195050946144) internal successors, (2580), 2105 states have internal predecessors, (2580), 891 states have call successors, (891), 135 states have call predecessors, (891), 134 states have return successors, (887), 874 states have call predecessors, (887), 887 states have call successors, (887) Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 3 states have call successors, (44), 3 states have call predecessors, (44), 4 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-13 02:36:00,941 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:36:16,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:36:16,301 INFO L93 Difference]: Finished difference Result 6149 states and 8780 transitions. [2021-11-13 02:36:16,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:36:16,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 3 states have call successors, (44), 3 states have call predecessors, (44), 4 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) Word has length 163 [2021-11-13 02:36:16,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:36:16,364 INFO L225 Difference]: With dead ends: 6149 [2021-11-13 02:36:16,364 INFO L226 Difference]: Without dead ends: 3019 [2021-11-13 02:36:16,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 648 GetRequests, 638 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-13 02:36:16,405 INFO L933 BasicCegarLoop]: 4329 mSDtfsCounter, 4247 mSDsluCounter, 2550 mSDsCounter, 0 mSdLazyCounter, 1780 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16392.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4247 SdHoareTripleChecker+Valid, 6879 SdHoareTripleChecker+Invalid, 1803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 69.82ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1780 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17637.57ms IncrementalHoareTripleChecker+Time [2021-11-13 02:36:16,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4247 Valid, 6879 Invalid, 1803 Unknown, 0 Unchecked, 69.82ms Time], IncrementalHoareTripleChecker [22 Valid, 1780 Invalid, 1 Unknown, 0 Unchecked, 17637.57ms Time] [2021-11-13 02:36:16,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3019 states. [2021-11-13 02:36:16,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3019 to 3019. [2021-11-13 02:36:16,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3019 states, 2024 states have (on average 1.240612648221344) internal successors, (2511), 2065 states have internal predecessors, (2511), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2021-11-13 02:36:16,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 4233 transitions. [2021-11-13 02:36:16,805 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 4233 transitions. Word has length 163 [2021-11-13 02:36:16,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:36:16,807 INFO L470 AbstractCegarLoop]: Abstraction has 3019 states and 4233 transitions. [2021-11-13 02:36:16,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 3 states have call successors, (44), 3 states have call predecessors, (44), 4 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-13 02:36:16,808 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 4233 transitions. [2021-11-13 02:36:16,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-13 02:36:16,814 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:36:16,814 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:36:16,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2021-11-13 02:36:17,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 02:36:17,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:36:17,241 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:36:17,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:36:17,242 INFO L85 PathProgramCache]: Analyzing trace with hash -791721547, now seen corresponding path program 1 times [2021-11-13 02:36:17,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:36:17,256 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [457475927] [2021-11-13 02:36:17,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:36:17,257 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:36:17,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:36:17,258 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:36:17,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 02:36:56,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:36:57,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 5242 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-13 02:36:57,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:36:59,103 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 106 proven. 3 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-11-13 02:36:59,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:37:01,157 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 3 proven. 33 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-11-13 02:37:01,157 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:37:01,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [457475927] [2021-11-13 02:37:01,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [457475927] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:37:01,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [256918603] [2021-11-13 02:37:01,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:37:01,158 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:37:01,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:37:01,159 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:37:01,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-11-13 02:37:07,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:37:07,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 5242 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 02:37:07,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:37:09,608 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-13 02:37:09,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:37:10,899 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-13 02:37:10,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [256918603] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:37:10,899 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-13 02:37:10,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 4] imperfect sequences [8, 8] total 12 [2021-11-13 02:37:10,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523422810] [2021-11-13 02:37:10,900 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:37:10,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:37:10,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:37:10,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:37:10,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-13 02:37:10,903 INFO L87 Difference]: Start difference. First operand 3019 states and 4233 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 3 states have call successors, (44), 3 states have call predecessors, (44), 4 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-13 02:37:13,689 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.77s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:37:28,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:37:28,832 INFO L93 Difference]: Finished difference Result 6021 states and 8478 transitions. [2021-11-13 02:37:28,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:37:28,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 3 states have call successors, (44), 3 states have call predecessors, (44), 4 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) Word has length 164 [2021-11-13 02:37:28,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:37:28,866 INFO L225 Difference]: With dead ends: 6021 [2021-11-13 02:37:28,866 INFO L226 Difference]: Without dead ends: 3019 [2021-11-13 02:37:28,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 652 GetRequests, 642 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-13 02:37:28,887 INFO L933 BasicCegarLoop]: 4231 mSDtfsCounter, 4149 mSDsluCounter, 2508 mSDsCounter, 0 mSdLazyCounter, 1724 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16383.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4149 SdHoareTripleChecker+Valid, 6739 SdHoareTripleChecker+Invalid, 1747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 40.63ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1724 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17511.50ms IncrementalHoareTripleChecker+Time [2021-11-13 02:37:28,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4149 Valid, 6739 Invalid, 1747 Unknown, 0 Unchecked, 40.63ms Time], IncrementalHoareTripleChecker [22 Valid, 1724 Invalid, 1 Unknown, 0 Unchecked, 17511.50ms Time] [2021-11-13 02:37:28,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3019 states. [2021-11-13 02:37:29,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3019 to 3019. [2021-11-13 02:37:29,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3019 states, 2024 states have (on average 1.2401185770750989) internal successors, (2510), 2065 states have internal predecessors, (2510), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2021-11-13 02:37:29,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 4232 transitions. [2021-11-13 02:37:29,118 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 4232 transitions. Word has length 164 [2021-11-13 02:37:29,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:37:29,121 INFO L470 AbstractCegarLoop]: Abstraction has 3019 states and 4232 transitions. [2021-11-13 02:37:29,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 3 states have call successors, (44), 3 states have call predecessors, (44), 4 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-13 02:37:29,121 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 4232 transitions. [2021-11-13 02:37:29,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-13 02:37:29,130 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:37:29,130 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:37:29,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 02:37:29,374 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2021-11-13 02:37:29,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-13 02:37:29,545 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:37:29,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:37:29,546 INFO L85 PathProgramCache]: Analyzing trace with hash 2116497894, now seen corresponding path program 1 times [2021-11-13 02:37:29,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:37:29,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1154169705] [2021-11-13 02:37:29,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:37:29,559 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:37:29,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:37:29,560 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:37:29,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 02:38:10,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:10,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 5243 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-13 02:38:10,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:12,418 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 106 proven. 3 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-11-13 02:38:12,418 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:14,123 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 3 proven. 33 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-11-13 02:38:14,123 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:14,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1154169705] [2021-11-13 02:38:14,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1154169705] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:38:14,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [776167999] [2021-11-13 02:38:14,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:14,125 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:38:14,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:38:14,126 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:38:14,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-13 02:38:21,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:21,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 5243 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:38:21,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:24,205 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-13 02:38:24,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:25,589 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-13 02:38:25,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [776167999] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:38:25,589 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-13 02:38:25,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 4] imperfect sequences [8, 8] total 12 [2021-11-13 02:38:25,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100780168] [2021-11-13 02:38:25,591 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:38:25,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:38:25,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:38:25,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:38:25,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-13 02:38:25,593 INFO L87 Difference]: Start difference. First operand 3019 states and 4232 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 3 states have call successors, (44), 3 states have call predecessors, (44), 4 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-13 02:38:28,726 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:38:44,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:38:44,164 INFO L93 Difference]: Finished difference Result 6021 states and 8476 transitions. [2021-11-13 02:38:44,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:38:44,165 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 3 states have call successors, (44), 3 states have call predecessors, (44), 4 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) Word has length 165 [2021-11-13 02:38:44,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:38:44,202 INFO L225 Difference]: With dead ends: 6021 [2021-11-13 02:38:44,203 INFO L226 Difference]: Without dead ends: 3019 [2021-11-13 02:38:44,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 656 GetRequests, 646 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-13 02:38:44,229 INFO L933 BasicCegarLoop]: 4230 mSDtfsCounter, 6591 mSDsluCounter, 2507 mSDsCounter, 0 mSdLazyCounter, 1724 mSolverCounterSat, 1705 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16924.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6591 SdHoareTripleChecker+Valid, 6737 SdHoareTripleChecker+Invalid, 3430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 40.02ms SdHoareTripleChecker+Time, 1705 IncrementalHoareTripleChecker+Valid, 1724 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18194.98ms IncrementalHoareTripleChecker+Time [2021-11-13 02:38:44,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6591 Valid, 6737 Invalid, 3430 Unknown, 0 Unchecked, 40.02ms Time], IncrementalHoareTripleChecker [1705 Valid, 1724 Invalid, 1 Unknown, 0 Unchecked, 18194.98ms Time] [2021-11-13 02:38:44,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3019 states. [2021-11-13 02:38:44,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3019 to 3019. [2021-11-13 02:38:44,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3019 states, 2024 states have (on average 1.2396245059288538) internal successors, (2509), 2065 states have internal predecessors, (2509), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2021-11-13 02:38:44,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 4231 transitions. [2021-11-13 02:38:44,484 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 4231 transitions. Word has length 165 [2021-11-13 02:38:44,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:38:44,486 INFO L470 AbstractCegarLoop]: Abstraction has 3019 states and 4231 transitions. [2021-11-13 02:38:44,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 3 states have call successors, (44), 3 states have call predecessors, (44), 4 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-13 02:38:44,487 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 4231 transitions. [2021-11-13 02:38:44,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-13 02:38:44,492 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:38:44,492 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:38:44,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 02:38:44,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2021-11-13 02:38:44,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-13 02:38:44,915 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:38:44,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:38:44,916 INFO L85 PathProgramCache]: Analyzing trace with hash -2103463343, now seen corresponding path program 1 times [2021-11-13 02:38:44,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:38:44,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [220038749] [2021-11-13 02:38:44,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:44,939 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:38:44,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:38:44,940 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:38:44,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 02:39:33,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:39:33,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 5244 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-13 02:39:33,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:39:35,307 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 106 proven. 3 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-11-13 02:39:35,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:39:37,009 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 3 proven. 33 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-11-13 02:39:37,010 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:39:37,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [220038749] [2021-11-13 02:39:37,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [220038749] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:39:37,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1249042592] [2021-11-13 02:39:37,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:39:37,011 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:39:37,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:39:37,023 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:39:37,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-13 02:39:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:39:44,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 5244 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 02:39:44,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:39:47,057 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-13 02:39:47,057 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:39:48,434 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-13 02:39:48,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1249042592] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:39:48,434 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-13 02:39:48,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 4] imperfect sequences [8, 8] total 12 [2021-11-13 02:39:48,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038668368] [2021-11-13 02:39:48,435 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:39:48,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:39:48,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:39:48,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:39:48,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-13 02:39:48,436 INFO L87 Difference]: Start difference. First operand 3019 states and 4231 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 3 states have call successors, (44), 3 states have call predecessors, (44), 4 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-13 02:39:51,555 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:40:06,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:40:06,614 INFO L93 Difference]: Finished difference Result 6021 states and 8474 transitions. [2021-11-13 02:40:06,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:40:06,615 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 3 states have call successors, (44), 3 states have call predecessors, (44), 4 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) Word has length 166 [2021-11-13 02:40:06,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:40:06,647 INFO L225 Difference]: With dead ends: 6021 [2021-11-13 02:40:06,648 INFO L226 Difference]: Without dead ends: 3019 [2021-11-13 02:40:06,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 660 GetRequests, 650 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-13 02:40:06,673 INFO L933 BasicCegarLoop]: 4229 mSDtfsCounter, 4147 mSDsluCounter, 2506 mSDsCounter, 0 mSdLazyCounter, 1724 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16605.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4147 SdHoareTripleChecker+Valid, 6735 SdHoareTripleChecker+Invalid, 1747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.68ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1724 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17800.05ms IncrementalHoareTripleChecker+Time [2021-11-13 02:40:06,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4147 Valid, 6735 Invalid, 1747 Unknown, 0 Unchecked, 30.68ms Time], IncrementalHoareTripleChecker [22 Valid, 1724 Invalid, 1 Unknown, 0 Unchecked, 17800.05ms Time] [2021-11-13 02:40:06,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3019 states. [2021-11-13 02:40:06,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3019 to 3019. [2021-11-13 02:40:06,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3019 states, 2024 states have (on average 1.2391304347826086) internal successors, (2508), 2065 states have internal predecessors, (2508), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2021-11-13 02:40:06,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 4230 transitions. [2021-11-13 02:40:06,960 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 4230 transitions. Word has length 166 [2021-11-13 02:40:06,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:40:06,962 INFO L470 AbstractCegarLoop]: Abstraction has 3019 states and 4230 transitions. [2021-11-13 02:40:06,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 3 states have call successors, (44), 3 states have call predecessors, (44), 4 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-13 02:40:06,962 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 4230 transitions. [2021-11-13 02:40:06,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-13 02:40:06,967 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:40:06,968 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:40:07,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-11-13 02:40:07,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-13 02:40:07,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:40:07,389 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:40:07,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:40:07,390 INFO L85 PathProgramCache]: Analyzing trace with hash 336241090, now seen corresponding path program 1 times [2021-11-13 02:40:07,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:40:07,408 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [36420978] [2021-11-13 02:40:07,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:40:07,408 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:40:07,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:40:07,409 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:40:07,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-13 02:40:53,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:40:54,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 5245 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-13 02:40:54,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:40:56,134 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 106 proven. 3 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-11-13 02:40:56,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:40:57,849 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 3 proven. 33 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-11-13 02:40:57,850 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:40:57,850 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [36420978] [2021-11-13 02:40:57,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [36420978] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:40:57,851 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [190137037] [2021-11-13 02:40:57,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:40:57,851 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:40:57,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:40:57,852 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:40:57,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-11-13 02:41:05,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:05,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 5245 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 02:41:05,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:07,850 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-13 02:41:07,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:09,268 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-13 02:41:09,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [190137037] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:41:09,268 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-13 02:41:09,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 4] imperfect sequences [8, 8] total 12 [2021-11-13 02:41:09,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319659383] [2021-11-13 02:41:09,269 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:41:09,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:41:09,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:41:09,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:41:09,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-13 02:41:09,271 INFO L87 Difference]: Start difference. First operand 3019 states and 4230 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 3 states have call successors, (44), 3 states have call predecessors, (44), 4 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-13 02:41:12,408 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:41:26,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:41:26,977 INFO L93 Difference]: Finished difference Result 6021 states and 8472 transitions. [2021-11-13 02:41:26,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:41:26,978 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 3 states have call successors, (44), 3 states have call predecessors, (44), 4 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) Word has length 167 [2021-11-13 02:41:26,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:41:27,009 INFO L225 Difference]: With dead ends: 6021 [2021-11-13 02:41:27,010 INFO L226 Difference]: Without dead ends: 3019 [2021-11-13 02:41:27,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 664 GetRequests, 654 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-13 02:41:27,032 INFO L933 BasicCegarLoop]: 4228 mSDtfsCounter, 4146 mSDsluCounter, 2505 mSDsCounter, 0 mSdLazyCounter, 1724 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16230.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4146 SdHoareTripleChecker+Valid, 6733 SdHoareTripleChecker+Invalid, 1747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.71ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1724 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17367.94ms IncrementalHoareTripleChecker+Time [2021-11-13 02:41:27,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4146 Valid, 6733 Invalid, 1747 Unknown, 0 Unchecked, 29.71ms Time], IncrementalHoareTripleChecker [22 Valid, 1724 Invalid, 1 Unknown, 0 Unchecked, 17367.94ms Time] [2021-11-13 02:41:27,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3019 states. [2021-11-13 02:41:27,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3019 to 3019. [2021-11-13 02:41:27,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3019 states, 2024 states have (on average 1.2386363636363635) internal successors, (2507), 2065 states have internal predecessors, (2507), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2021-11-13 02:41:27,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 4229 transitions. [2021-11-13 02:41:27,290 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 4229 transitions. Word has length 167 [2021-11-13 02:41:27,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:41:27,292 INFO L470 AbstractCegarLoop]: Abstraction has 3019 states and 4229 transitions. [2021-11-13 02:41:27,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 3 states have call successors, (44), 3 states have call predecessors, (44), 4 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-13 02:41:27,292 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 4229 transitions. [2021-11-13 02:41:27,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-11-13 02:41:27,297 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:27,297 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:41:27,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-13 02:41:27,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-11-13 02:41:27,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-13 02:41:27,708 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:41:27,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:27,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1227816211, now seen corresponding path program 1 times [2021-11-13 02:41:27,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:41:27,727 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2015754106] [2021-11-13 02:41:27,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:27,727 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:41:27,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:41:27,728 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:41:27,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-13 02:42:14,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:42:15,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 5246 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-13 02:42:15,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:42:17,172 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 106 proven. 3 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-11-13 02:42:17,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:42:18,840 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 3 proven. 33 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-11-13 02:42:18,841 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:42:18,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2015754106] [2021-11-13 02:42:18,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2015754106] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:42:18,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1550115058] [2021-11-13 02:42:18,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:42:18,842 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:42:18,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:42:18,858 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:42:18,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-11-13 02:42:26,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:42:26,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 5246 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 02:42:26,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:42:29,156 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-13 02:42:29,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:42:30,572 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-13 02:42:30,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1550115058] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:42:30,573 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-13 02:42:30,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 4] imperfect sequences [8, 8] total 12 [2021-11-13 02:42:30,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237996064] [2021-11-13 02:42:30,574 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:42:30,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:42:30,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:42:30,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:42:30,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-13 02:42:30,576 INFO L87 Difference]: Start difference. First operand 3019 states and 4229 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 3 states have call successors, (44), 3 states have call predecessors, (44), 4 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-13 02:42:33,600 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:42:49,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:42:49,491 INFO L93 Difference]: Finished difference Result 6021 states and 8470 transitions. [2021-11-13 02:42:49,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:42:49,492 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 3 states have call successors, (44), 3 states have call predecessors, (44), 4 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) Word has length 168 [2021-11-13 02:42:49,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:42:49,523 INFO L225 Difference]: With dead ends: 6021 [2021-11-13 02:42:49,524 INFO L226 Difference]: Without dead ends: 3019 [2021-11-13 02:42:49,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 668 GetRequests, 658 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-13 02:42:49,543 INFO L933 BasicCegarLoop]: 4227 mSDtfsCounter, 6582 mSDsluCounter, 2504 mSDsCounter, 0 mSdLazyCounter, 1724 mSolverCounterSat, 1705 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17015.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6582 SdHoareTripleChecker+Valid, 6731 SdHoareTripleChecker+Invalid, 3430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 40.99ms SdHoareTripleChecker+Time, 1705 IncrementalHoareTripleChecker+Valid, 1724 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18353.76ms IncrementalHoareTripleChecker+Time [2021-11-13 02:42:49,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6582 Valid, 6731 Invalid, 3430 Unknown, 0 Unchecked, 40.99ms Time], IncrementalHoareTripleChecker [1705 Valid, 1724 Invalid, 1 Unknown, 0 Unchecked, 18353.76ms Time] [2021-11-13 02:42:49,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3019 states. [2021-11-13 02:42:49,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3019 to 3019. [2021-11-13 02:42:49,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3019 states, 2024 states have (on average 1.2381422924901186) internal successors, (2506), 2065 states have internal predecessors, (2506), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2021-11-13 02:42:49,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 4228 transitions. [2021-11-13 02:42:49,824 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 4228 transitions. Word has length 168 [2021-11-13 02:42:49,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:42:49,825 INFO L470 AbstractCegarLoop]: Abstraction has 3019 states and 4228 transitions. [2021-11-13 02:42:49,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 3 states have call successors, (44), 3 states have call predecessors, (44), 4 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-13 02:42:49,826 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 4228 transitions. [2021-11-13 02:42:49,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-11-13 02:42:49,831 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:42:49,831 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:42:49,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-13 02:42:50,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-11-13 02:42:50,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-13 02:42:50,245 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:42:50,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:42:50,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1940531614, now seen corresponding path program 1 times [2021-11-13 02:42:50,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:42:50,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [910653272] [2021-11-13 02:42:50,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:42:50,265 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:42:50,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:42:50,267 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:42:50,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-13 02:43:39,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:43:39,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 5247 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-13 02:43:39,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:43:41,496 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 106 proven. 3 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-11-13 02:43:41,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:43:43,298 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 3 proven. 33 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-11-13 02:43:43,298 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:43:43,299 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [910653272] [2021-11-13 02:43:43,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [910653272] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:43:43,299 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [929423086] [2021-11-13 02:43:43,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:43:43,299 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:43:43,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:43:43,300 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:43:43,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009e7194-2e90-4a61-ad16-58157300607c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2021-11-13 02:43:51,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:43:51,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 5247 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 02:43:51,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:43:54,323 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-13 02:43:54,323 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:43:56,037 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-13 02:43:56,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [929423086] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:43:56,037 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-13 02:43:56,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 4] imperfect sequences [8, 8] total 12 [2021-11-13 02:43:56,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210633323] [2021-11-13 02:43:56,038 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:43:56,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:43:56,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:43:56,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:43:56,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-13 02:43:56,041 INFO L87 Difference]: Start difference. First operand 3019 states and 4228 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 3 states have call successors, (44), 3 states have call predecessors, (44), 4 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-13 02:43:59,157 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []