./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-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_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/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_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/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_c174ce7e-edce-4076-b0d5-7cbf993edee6/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 5b31204b1d3e0e886bec362e36aa7180804ba0e69acfc232c20abd4ca078cb80 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:03:56,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:03:56,755 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:03:56,826 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:03:56,827 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:03:56,833 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:03:56,835 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:03:56,840 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:03:56,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:03:56,849 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:03:56,851 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:03:56,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:03:56,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:03:56,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:03:56,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:03:56,867 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:03:56,868 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:03:56,870 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:03:56,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:03:56,883 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:03:56,885 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:03:56,887 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:03:56,890 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:03:56,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:03:56,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:03:56,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:03:56,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:03:56,905 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:03:56,905 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:03:56,907 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:03:56,908 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:03:56,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:03:56,911 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:03:56,913 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:03:56,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:03:56,915 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:03:56,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:03:56,916 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:03:56,916 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:03:56,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:03:56,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:03:56,920 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 23:03:56,969 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:03:56,969 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:03:56,971 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:03:56,971 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:03:56,972 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:03:56,972 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:03:56,972 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:03:56,973 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:03:56,973 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:03:56,973 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:03:56,974 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:03:56,975 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:03:56,975 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:03:56,976 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:03:56,976 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:03:56,976 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:03:56,977 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:03:56,977 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:03:56,978 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:03:56,978 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:03:56,978 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:03:56,978 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:03:56,979 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:03:56,979 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:03:56,979 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:03:56,980 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:03:56,980 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:03:56,980 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:03:56,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:03:56,982 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:03:56,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:03:56,983 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:03:56,983 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:03:56,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:03:56,984 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:03:56,984 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:03:56,985 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:03:56,985 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_c174ce7e-edce-4076-b0d5-7cbf993edee6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b31204b1d3e0e886bec362e36aa7180804ba0e69acfc232c20abd4ca078cb80 [2021-11-12 23:03:57,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:03:57,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:03:57,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:03:57,369 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:03:57,369 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:03:57,371 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2021-11-12 23:03:57,468 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/data/2afa4fca0/aff6ae9585ea47059fb06cce422949cc/FLAG9c63ced71 [2021-11-12 23:03:58,873 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:03:58,875 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2021-11-12 23:03:58,968 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/data/2afa4fca0/aff6ae9585ea47059fb06cce422949cc/FLAG9c63ced71 [2021-11-12 23:03:59,484 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/data/2afa4fca0/aff6ae9585ea47059fb06cce422949cc [2021-11-12 23:03:59,487 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:03:59,490 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:03:59,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:03:59,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:03:59,498 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:03:59,499 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:03:59" (1/1) ... [2021-11-12 23:03:59,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@172c5c41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:03:59, skipping insertion in model container [2021-11-12 23:03:59,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:03:59" (1/1) ... [2021-11-12 23:03:59,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:03:59,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:04:03,350 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:04:03,351 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:04:03,434 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:04:03,465 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:04:05,745 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_c174ce7e-edce-4076-b0d5-7cbf993edee6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[524215,524228] [2021-11-12 23:04:05,749 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_c174ce7e-edce-4076-b0d5-7cbf993edee6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[524360,524373] [2021-11-12 23:04:05,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:04:05,875 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 23:04:05,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4aebec07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:04:05, skipping insertion in model container [2021-11-12 23:04:05,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:04:05,877 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 23:04:05,879 INFO L158 Benchmark]: Toolchain (without parser) took 6387.91ms. Allocated memory was 94.4MB in the beginning and 186.6MB in the end (delta: 92.3MB). Free memory was 55.6MB in the beginning and 100.0MB in the end (delta: -44.4MB). Peak memory consumption was 74.4MB. Max. memory is 16.1GB. [2021-11-12 23:04:05,880 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 94.4MB. Free memory was 64.8MB in the beginning and 64.8MB in the end (delta: 29.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:04:05,881 INFO L158 Benchmark]: CACSL2BoogieTranslator took 6382.79ms. Allocated memory was 94.4MB in the beginning and 186.6MB in the end (delta: 92.3MB). Free memory was 55.2MB in the beginning and 100.0MB in the end (delta: -44.8MB). Peak memory consumption was 74.4MB. Max. memory is 16.1GB. [2021-11-12 23:04:05,883 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 94.4MB. Free memory was 64.8MB in the beginning and 64.8MB in the end (delta: 29.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 6382.79ms. Allocated memory was 94.4MB in the beginning and 186.6MB in the end (delta: 92.3MB). Free memory was 55.2MB in the beginning and 100.0MB in the end (delta: -44.8MB). Peak memory consumption was 74.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6834]: 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_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/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_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/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_c174ce7e-edce-4076-b0d5-7cbf993edee6/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 5b31204b1d3e0e886bec362e36aa7180804ba0e69acfc232c20abd4ca078cb80 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:04:08,712 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:04:08,716 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:04:08,784 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:04:08,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:04:08,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:04:08,795 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:04:08,800 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:04:08,803 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:04:08,811 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:04:08,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:04:08,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:04:08,815 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:04:08,818 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:04:08,821 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:04:08,827 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:04:08,829 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:04:08,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:04:08,832 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:04:08,841 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:04:08,843 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:04:08,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:04:08,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:04:08,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:04:08,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:04:08,850 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:04:08,850 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:04:08,851 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:04:08,852 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:04:08,853 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:04:08,853 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:04:08,854 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:04:08,854 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:04:08,855 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:04:08,856 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:04:08,856 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:04:08,857 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:04:08,857 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:04:08,857 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:04:08,858 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:04:08,863 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:04:08,864 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 23:04:08,920 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:04:08,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:04:08,922 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:04:08,922 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:04:08,923 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:04:08,923 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:04:08,923 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:04:08,923 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:04:08,924 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:04:08,924 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:04:08,927 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:04:08,927 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:04:08,927 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:04:08,928 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:04:08,928 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:04:08,928 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:04:08,928 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:04:08,929 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:04:08,929 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:04:08,929 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:04:08,929 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:04:08,930 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:04:08,930 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:04:08,930 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:04:08,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:04:08,931 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:04:08,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:04:08,931 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:04:08,932 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:04:08,932 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:04:08,932 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:04:08,932 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:04:08,933 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:04:08,933 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_c174ce7e-edce-4076-b0d5-7cbf993edee6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b31204b1d3e0e886bec362e36aa7180804ba0e69acfc232c20abd4ca078cb80 [2021-11-12 23:04:09,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:04:09,430 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:04:09,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:04:09,435 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:04:09,435 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:04:09,437 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2021-11-12 23:04:09,534 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/data/b64bf4e94/7c7514309944448e9cdeb3deea7f3d5e/FLAGa9ba82c62 [2021-11-12 23:04:11,103 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:04:11,104 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2021-11-12 23:04:11,199 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/data/b64bf4e94/7c7514309944448e9cdeb3deea7f3d5e/FLAGa9ba82c62 [2021-11-12 23:04:11,569 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/data/b64bf4e94/7c7514309944448e9cdeb3deea7f3d5e [2021-11-12 23:04:11,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:04:11,575 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:04:11,580 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:04:11,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:04:11,584 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:04:11,585 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:04:11" (1/1) ... [2021-11-12 23:04:11,587 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@462bcd86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:04:11, skipping insertion in model container [2021-11-12 23:04:11,587 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:04:11" (1/1) ... [2021-11-12 23:04:11,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:04:11,998 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:04:18,099 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_c174ce7e-edce-4076-b0d5-7cbf993edee6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[524215,524228] [2021-11-12 23:04:18,103 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_c174ce7e-edce-4076-b0d5-7cbf993edee6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[524360,524373] [2021-11-12 23:04:18,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:04:18,329 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 23:04:18,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:04:19,194 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_c174ce7e-edce-4076-b0d5-7cbf993edee6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[524215,524228] [2021-11-12 23:04:19,194 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_c174ce7e-edce-4076-b0d5-7cbf993edee6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[524360,524373] [2021-11-12 23:04:19,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:04:19,269 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:04:20,009 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_c174ce7e-edce-4076-b0d5-7cbf993edee6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[524215,524228] [2021-11-12 23:04:20,010 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_c174ce7e-edce-4076-b0d5-7cbf993edee6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[524360,524373] [2021-11-12 23:04:20,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:04:20,739 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:04:20,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:04:20 WrapperNode [2021-11-12 23:04:20,740 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:04:20,742 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:04:20,742 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:04:20,742 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:04:20,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:04:20" (1/1) ... [2021-11-12 23:04:21,020 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:04:20" (1/1) ... [2021-11-12 23:04:21,620 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:04:21,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:04:21,623 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:04:21,623 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:04:21,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:04:20" (1/1) ... [2021-11-12 23:04:21,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:04:20" (1/1) ... [2021-11-12 23:04:21,767 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:04:20" (1/1) ... [2021-11-12 23:04:21,767 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:04:20" (1/1) ... [2021-11-12 23:04:22,181 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:04:20" (1/1) ... [2021-11-12 23:04:22,236 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:04:20" (1/1) ... [2021-11-12 23:04:22,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:04:20" (1/1) ... [2021-11-12 23:04:22,480 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:04:22,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:04:22,485 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:04:22,485 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:04:22,486 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:04:20" (1/1) ... [2021-11-12 23:04:22,495 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:04:22,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:04:22,526 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:04:22,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:04:22,588 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-12 23:04:22,589 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-12 23:04:22,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-12 23:04:22,589 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-12 23:04:22,589 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-12 23:04:22,589 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-12 23:04:22,589 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_vfta [2021-11-12 23:04:22,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_vfta [2021-11-12 23:04:22,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 23:04:22,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 23:04:22,590 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_standby_eeprom [2021-11-12 23:04:22,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_standby_eeprom [2021-11-12 23:04:22,590 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-12 23:04:22,591 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-12 23:04:22,591 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-12 23:04:22,591 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-12 23:04:22,591 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-12 23:04:22,591 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-12 23:04:22,591 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-12 23:04:22,592 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-12 23:04:22,592 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_alloc_rx_buffers [2021-11-12 23:04:22,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_alloc_rx_buffers [2021-11-12 23:04:22,592 INFO L130 BoogieDeclarations]: Found specification of procedure mac_addr_valid [2021-11-12 23:04:22,592 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_addr_valid [2021-11-12 23:04:22,592 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_vlan_rx_add_vid [2021-11-12 23:04:22,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_vlan_rx_add_vid [2021-11-12 23:04:22,593 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_tx_resources [2021-11-12 23:04:22,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_tx_resources [2021-11-12 23:04:22,593 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-12 23:04:22,593 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-12 23:04:22,593 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_multi [2021-11-12 23:04:22,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_multi [2021-11-12 23:04:22,594 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-12 23:04:22,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-12 23:04:22,594 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_rar_set [2021-11-12 23:04:22,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_rar_set [2021-11-12 23:04:22,594 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-12 23:04:22,594 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-12 23:04:22,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-12 23:04:22,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-12 23:04:22,595 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-12 23:04:22,595 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-12 23:04:22,595 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-12 23:04:22,595 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-12 23:04:22,595 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_io_resume [2021-11-12 23:04:22,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_io_resume [2021-11-12 23:04:22,596 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-12 23:04:22,596 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-12 23:04:22,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-12 23:04:22,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-12 23:04:22,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:04:22,596 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-12 23:04:22,597 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-12 23:04:22,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:04:22,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 23:04:22,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 23:04:22,597 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_eeprom_checksum [2021-11-12 23:04:22,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_eeprom_checksum [2021-11-12 23:04:22,597 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-12 23:04:22,598 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-12 23:04:22,598 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_netpoll [2021-11-12 23:04:22,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_netpoll [2021-11-12 23:04:22,598 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-12 23:04:22,598 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-12 23:04:22,598 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_raise_clock [2021-11-12 23:04:22,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_raise_clock [2021-11-12 23:04:22,599 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_eeprom [2021-11-12 23:04:22,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_eeprom [2021-11-12 23:04:22,599 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-12 23:04:22,599 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-12 23:04:22,599 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_identify_xpak_vendor [2021-11-12 23:04:22,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_identify_xpak_vendor [2021-11-12 23:04:22,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-12 23:04:22,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-12 23:04:22,600 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_mac_reset [2021-11-12 23:04:22,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_mac_reset [2021-11-12 23:04:22,600 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_eeprom [2021-11-12 23:04:22,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_eeprom [2021-11-12 23:04:22,601 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-12 23:04:22,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-12 23:04:22,601 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_rx_resources [2021-11-12 23:04:22,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_rx_resources [2021-11-12 23:04:22,601 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-12 23:04:22,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-12 23:04:22,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-12 23:04:22,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-12 23:04:22,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-12 23:04:22,602 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-12 23:04:22,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-12 23:04:22,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-12 23:04:22,602 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-12 23:04:22,603 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-12 23:04:22,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-12 23:04:22,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-12 23:04:22,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-12 23:04:22,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-12 23:04:22,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-12 23:04:22,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-12 23:04:22,604 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_regs_len [2021-11-12 23:04:22,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_regs_len [2021-11-12 23:04:22,604 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-12 23:04:22,604 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-12 23:04:22,604 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-12 23:04:22,604 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-12 23:04:22,605 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_phy_reg [2021-11-12 23:04:22,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_phy_reg [2021-11-12 23:04:22,605 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_for_link [2021-11-12 23:04:22,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_for_link [2021-11-12 23:04:22,605 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_option [2021-11-12 23:04:22,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_option [2021-11-12 23:04:22,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 23:04:22,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-12 23:04:22,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-12 23:04:22,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-12 23:04:22,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-12 23:04:22,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-12 23:04:22,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-12 23:04:22,607 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-12 23:04:22,607 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-12 23:04:22,607 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-12 23:04:22,607 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-12 23:04:22,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-12 23:04:22,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-12 23:04:22,608 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-12 23:04:22,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-12 23:04:22,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 23:04:22,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-12 23:04:22,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-12 23:04:22,608 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 23:04:22,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 23:04:22,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-12 23:04:22,609 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_lower_clock [2021-11-12 23:04:22,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_lower_clock [2021-11-12 23:04:22,609 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_reset [2021-11-12 23:04:22,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_reset [2021-11-12 23:04:22,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-12 23:04:22,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-12 23:04:22,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-12 23:04:22,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-12 23:04:22,610 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_remove [2021-11-12 23:04:22,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_remove [2021-11-12 23:04:22,610 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-12 23:04:22,610 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-12 23:04:22,611 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_len [2021-11-12 23:04:22,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_len [2021-11-12 23:04:22,611 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-12 23:04:22,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-12 23:04:22,611 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_up [2021-11-12 23:04:22,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_up [2021-11-12 23:04:22,611 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_irq_enable [2021-11-12 23:04:22,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_irq_enable [2021-11-12 23:04:22,612 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-12 23:04:22,612 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-12 23:04:22,612 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-12 23:04:22,612 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-12 23:04:22,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-12 23:04:22,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-12 23:04:22,613 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_tx_resources [2021-11-12 23:04:22,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_tx_resources [2021-11-12 23:04:22,613 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_maybe_stop_tx [2021-11-12 23:04:22,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_maybe_stop_tx [2021-11-12 23:04:22,613 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_intr [2021-11-12 23:04:22,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_intr [2021-11-12 23:04:22,614 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-12 23:04:22,614 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-12 23:04:22,614 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-12 23:04:22,614 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-12 23:04:22,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-12 23:04:22,614 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_open [2021-11-12 23:04:22,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_open [2021-11-12 23:04:22,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:04:22,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:04:22,615 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-12 23:04:22,615 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-12 23:04:22,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 23:04:22,615 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-12 23:04:22,616 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-12 23:04:22,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 23:04:22,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 23:04:22,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-12 23:04:22,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 23:04:22,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-12 23:04:22,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 23:04:22,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 23:04:22,617 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-12 23:04:22,617 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-12 23:04:22,617 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-12 23:04:22,617 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-12 23:04:22,617 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_update_stats [2021-11-12 23:04:22,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_update_stats [2021-11-12 23:04:22,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-12 23:04:22,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-12 23:04:22,618 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_and_get_eeprom_data [2021-11-12 23:04:22,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_and_get_eeprom_data [2021-11-12 23:04:22,618 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-12 23:04:22,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-12 23:04:22,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-12 23:04:22,619 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-12 23:04:22,619 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-12 23:04:22,619 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-12 23:04:22,619 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2021-11-12 23:04:22,619 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2021-11-12 23:04:22,620 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_close [2021-11-12 23:04:22,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_close [2021-11-12 23:04:22,620 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-12 23:04:22,620 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-12 23:04:22,620 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-12 23:04:22,620 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-12 23:04:22,620 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-12 23:04:22,621 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-12 23:04:22,621 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-12 23:04:22,621 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-12 23:04:22,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:04:22,621 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-12 23:04:22,621 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-12 23:04:22,621 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-12 23:04:22,622 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-12 23:04:22,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 23:04:22,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 23:04:22,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 23:04:22,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 23:04:22,622 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2021-11-12 23:04:22,622 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2021-11-12 23:04:22,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 23:04:22,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 23:04:22,623 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-12 23:04:22,623 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-12 23:04:22,623 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-12 23:04:22,623 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-12 23:04:22,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-12 23:04:22,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-12 23:04:22,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-12 23:04:22,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-12 23:04:22,624 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_link_reset [2021-11-12 23:04:22,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_link_reset [2021-11-12 23:04:22,624 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_speed_duplex [2021-11-12 23:04:22,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_speed_duplex [2021-11-12 23:04:22,625 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-12 23:04:22,625 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-12 23:04:22,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2021-11-12 23:04:22,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2021-11-12 23:04:22,625 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-12 23:04:22,625 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-12 23:04:22,625 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-12 23:04:22,626 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-12 23:04:22,626 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-11-12 23:04:22,626 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-11-12 23:04:22,626 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 23:04:22,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 23:04:22,626 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-12 23:04:22,626 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-12 23:04:22,627 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_unmap_and_free_tx_resource [2021-11-12 23:04:22,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_unmap_and_free_tx_resource [2021-11-12 23:04:22,627 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-12 23:04:22,627 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-12 23:04:22,627 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-12 23:04:22,627 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-12 23:04:22,627 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_eeprom [2021-11-12 23:04:22,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_eeprom [2021-11-12 23:04:22,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-12 23:04:22,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-12 23:04:22,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-12 23:04:22,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-12 23:04:22,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-12 23:04:22,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-12 23:04:22,628 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_phy_reg [2021-11-12 23:04:22,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_phy_reg [2021-11-12 23:04:22,629 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-12 23:04:22,629 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-12 23:04:22,629 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_ee_mac_addr [2021-11-12 23:04:22,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_ee_mac_addr [2021-11-12 23:04:22,629 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-12 23:04:22,629 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-12 23:04:22,629 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-11-12 23:04:22,630 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-11-12 23:04:22,630 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_tx_ring [2021-11-12 23:04:22,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_tx_ring [2021-11-12 23:04:22,630 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2021-11-12 23:04:22,630 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2021-11-12 23:04:22,630 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-12 23:04:22,630 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-12 23:04:22,630 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_rx_ring [2021-11-12 23:04:22,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_rx_ring [2021-11-12 23:04:22,631 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_shift_out_bits [2021-11-12 23:04:22,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_shift_out_bits [2021-11-12 23:04:22,631 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_down [2021-11-12 23:04:22,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_down [2021-11-12 23:04:22,631 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_tx_timeout [2021-11-12 23:04:22,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_tx_timeout [2021-11-12 23:04:22,632 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_rx_resources [2021-11-12 23:04:22,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_rx_resources [2021-11-12 23:04:22,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-12 23:04:22,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-12 23:04:22,632 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-12 23:04:22,632 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-12 23:04:22,632 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-12 23:04:22,633 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-12 23:04:22,633 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-12 23:04:22,633 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-12 23:04:22,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-12 23:04:22,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-12 23:04:22,633 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-12 23:04:22,633 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_data [2021-11-12 23:04:22,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_data [2021-11-12 23:04:26,662 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 23:08:06,697 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-12 23:08:11,783 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:08:11,784 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-12 23:08:11,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:08:11 BoogieIcfgContainer [2021-11-12 23:08:11,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:08:11,792 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:08:11,793 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:08:11,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:08:11,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:04:11" (1/3) ... [2021-11-12 23:08:11,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2814c475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:08:11, skipping insertion in model container [2021-11-12 23:08:11,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:04:20" (2/3) ... [2021-11-12 23:08:11,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2814c475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:08:11, skipping insertion in model container [2021-11-12 23:08:11,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:08:11" (3/3) ... [2021-11-12 23:08:11,800 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2021-11-12 23:08:11,805 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:08:11,806 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-12 23:08:11,895 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:08:11,906 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 23:08:11,907 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-12 23:08:12,005 INFO L276 IsEmpty]: Start isEmpty. Operand has 3350 states, 2265 states have (on average 1.2657836644591611) internal successors, (2867), 2300 states have internal predecessors, (2867), 947 states have call successors, (947), 137 states have call predecessors, (947), 136 states have return successors, (942), 932 states have call predecessors, (942), 942 states have call successors, (942) [2021-11-12 23:08:12,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-11-12 23:08:12,044 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:08:12,045 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:08:12,046 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:08:12,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:08:12,052 INFO L85 PathProgramCache]: Analyzing trace with hash 300694412, now seen corresponding path program 1 times [2021-11-12 23:08:12,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:08:12,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1755214372] [2021-11-12 23:08:12,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:08:12,101 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:08:12,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:08:12,108 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:08:12,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:08:56,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:08:57,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 5433 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:08:57,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:08:58,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1080 trivial. 0 not checked. [2021-11-12 23:08:58,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:08:59,857 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2021-11-12 23:08:59,859 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:08:59,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1755214372] [2021-11-12 23:08:59,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1755214372] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:08:59,860 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:08:59,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:08:59,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283277677] [2021-11-12 23:08:59,864 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:08:59,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:08:59,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:08:59,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:08:59,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:08:59,934 INFO L87 Difference]: Start difference. First operand has 3350 states, 2265 states have (on average 1.2657836644591611) internal successors, (2867), 2300 states have internal predecessors, (2867), 947 states have call successors, (947), 137 states have call predecessors, (947), 136 states have return successors, (942), 932 states have call predecessors, (942), 942 states have call successors, (942) Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 4 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2021-11-12 23:09:01,129 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:09:03,181 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:09:33,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:09:33,346 INFO L93 Difference]: Finished difference Result 12240 states and 17612 transitions. [2021-11-12 23:09:33,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:09:33,356 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 4 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 222 [2021-11-12 23:09:33,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:09:33,463 INFO L225 Difference]: With dead ends: 12240 [2021-11-12 23:09:33,464 INFO L226 Difference]: Without dead ends: 8792 [2021-11-12 23:09:33,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 440 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:09:33,526 INFO L933 BasicCegarLoop]: 6405 mSDtfsCounter, 10810 mSDsluCounter, 6731 mSDsCounter, 0 mSdLazyCounter, 1979 mSolverCounterSat, 1597 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30371.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10810 SdHoareTripleChecker+Valid, 13136 SdHoareTripleChecker+Invalid, 3577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 89.19ms SdHoareTripleChecker+Time, 1597 IncrementalHoareTripleChecker+Valid, 1979 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32418.86ms IncrementalHoareTripleChecker+Time [2021-11-12 23:09:33,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10810 Valid, 13136 Invalid, 3577 Unknown, 0 Unchecked, 89.19ms Time], IncrementalHoareTripleChecker [1597 Valid, 1979 Invalid, 1 Unknown, 0 Unchecked, 32418.86ms Time] [2021-11-12 23:09:33,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8792 states. [2021-11-12 23:09:34,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8792 to 8782. [2021-11-12 23:09:34,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8782 states, 5944 states have (on average 1.2493270524899058) internal successors, (7426), 6026 states have internal predecessors, (7426), 2473 states have call successors, (2473), 363 states have call predecessors, (2473), 363 states have return successors, (2473), 2451 states have call predecessors, (2473), 2473 states have call successors, (2473) [2021-11-12 23:09:34,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8782 states to 8782 states and 12372 transitions. [2021-11-12 23:09:34,664 INFO L78 Accepts]: Start accepts. Automaton has 8782 states and 12372 transitions. Word has length 222 [2021-11-12 23:09:34,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:09:34,670 INFO L470 AbstractCegarLoop]: Abstraction has 8782 states and 12372 transitions. [2021-11-12 23:09:34,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 4 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2021-11-12 23:09:34,680 INFO L276 IsEmpty]: Start isEmpty. Operand 8782 states and 12372 transitions. [2021-11-12 23:09:34,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-11-12 23:09:34,694 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:09:34,695 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:09:34,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:09:34,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:09:34,919 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:09:34,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:09:34,920 INFO L85 PathProgramCache]: Analyzing trace with hash 370553001, now seen corresponding path program 1 times [2021-11-12 23:09:34,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:09:34,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2143840357] [2021-11-12 23:09:34,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:34,948 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:09:34,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:09:34,949 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:09:35,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:10:18,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:10:19,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 5448 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:10:19,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:10:20,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1132 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1084 trivial. 0 not checked. [2021-11-12 23:10:20,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:10:21,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1132 trivial. 0 not checked. [2021-11-12 23:10:21,202 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:10:21,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2143840357] [2021-11-12 23:10:21,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2143840357] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:10:21,203 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:10:21,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 23:10:21,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798040395] [2021-11-12 23:10:21,203 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:10:21,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:10:21,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:10:21,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:10:21,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:10:21,207 INFO L87 Difference]: Start difference. First operand 8782 states and 12372 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-12 23:10:24,095 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.88s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:10:26,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:10:26,116 INFO L93 Difference]: Finished difference Result 22229 states and 31205 transitions. [2021-11-12 23:10:26,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:10:26,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 243 [2021-11-12 23:10:26,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:10:26,248 INFO L225 Difference]: With dead ends: 22229 [2021-11-12 23:10:26,249 INFO L226 Difference]: Without dead ends: 13484 [2021-11-12 23:10:26,312 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 484 GetRequests, 483 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:10:26,313 INFO L933 BasicCegarLoop]: 5321 mSDtfsCounter, 3325 mSDsluCounter, 4519 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4152.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3325 SdHoareTripleChecker+Valid, 9840 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.43ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4374.69ms IncrementalHoareTripleChecker+Time [2021-11-12 23:10:26,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3325 Valid, 9840 Invalid, 116 Unknown, 0 Unchecked, 23.43ms Time], IncrementalHoareTripleChecker [7 Valid, 108 Invalid, 1 Unknown, 0 Unchecked, 4374.69ms Time] [2021-11-12 23:10:26,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13484 states. [2021-11-12 23:10:27,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13484 to 13478. [2021-11-12 23:10:27,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13478 states, 9072 states have (on average 1.2429453262786596) internal successors, (11276), 9195 states have internal predecessors, (11276), 3795 states have call successors, (3795), 610 states have call predecessors, (3795), 609 states have return successors, (3796), 3758 states have call predecessors, (3796), 3795 states have call successors, (3796) [2021-11-12 23:10:27,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13478 states to 13478 states and 18867 transitions. [2021-11-12 23:10:27,605 INFO L78 Accepts]: Start accepts. Automaton has 13478 states and 18867 transitions. Word has length 243 [2021-11-12 23:10:27,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:10:27,607 INFO L470 AbstractCegarLoop]: Abstraction has 13478 states and 18867 transitions. [2021-11-12 23:10:27,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-12 23:10:27,608 INFO L276 IsEmpty]: Start isEmpty. Operand 13478 states and 18867 transitions. [2021-11-12 23:10:27,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2021-11-12 23:10:27,617 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:10:27,618 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 16, 16, 16, 16, 16, 16, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:10:27,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:10:27,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:10:27,840 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:10:27,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:10:27,841 INFO L85 PathProgramCache]: Analyzing trace with hash 2075427934, now seen corresponding path program 1 times [2021-11-12 23:10:27,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:10:27,859 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1521530719] [2021-11-12 23:10:27,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:10:27,859 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:10:27,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:10:27,860 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:10:27,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:11:09,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:10,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 5572 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:11:10,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:11:11,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1317 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 1194 trivial. 0 not checked. [2021-11-12 23:11:11,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:11:12,874 INFO L134 CoverageAnalysis]: Checked inductivity of 1317 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1314 trivial. 0 not checked. [2021-11-12 23:11:12,875 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:11:12,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1521530719] [2021-11-12 23:11:12,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1521530719] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:11:12,875 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:11:12,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:11:12,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123427250] [2021-11-12 23:11:12,876 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:11:12,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:11:12,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:11:12,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:11:12,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:11:12,879 INFO L87 Difference]: Start difference. First operand 13478 states and 18867 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 4 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2021-11-12 23:11:15,838 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.94s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:11:40,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:11:40,455 INFO L93 Difference]: Finished difference Result 37845 states and 52994 transitions. [2021-11-12 23:11:40,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:11:40,456 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 4 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) Word has length 283 [2021-11-12 23:11:40,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:11:40,631 INFO L225 Difference]: With dead ends: 37845 [2021-11-12 23:11:40,632 INFO L226 Difference]: Without dead ends: 24404 [2021-11-12 23:11:40,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 562 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:11:40,704 INFO L933 BasicCegarLoop]: 10171 mSDtfsCounter, 8332 mSDsluCounter, 8476 mSDsCounter, 0 mSdLazyCounter, 1915 mSolverCounterSat, 39 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25408.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8332 SdHoareTripleChecker+Valid, 18647 SdHoareTripleChecker+Invalid, 1955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 51.18ms SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1915 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26629.93ms IncrementalHoareTripleChecker+Time [2021-11-12 23:11:40,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8332 Valid, 18647 Invalid, 1955 Unknown, 0 Unchecked, 51.18ms Time], IncrementalHoareTripleChecker [39 Valid, 1915 Invalid, 1 Unknown, 0 Unchecked, 26629.93ms Time] [2021-11-12 23:11:40,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24404 states. [2021-11-12 23:11:42,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24404 to 24392. [2021-11-12 23:11:42,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24392 states, 16396 states have (on average 1.2410953891192973) internal successors, (20349), 16615 states have internal predecessors, (20349), 6896 states have call successors, (6896), 1099 states have call predecessors, (6896), 1098 states have return successors, (6897), 6834 states have call predecessors, (6897), 6896 states have call successors, (6897) [2021-11-12 23:11:42,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24392 states to 24392 states and 34142 transitions. [2021-11-12 23:11:42,732 INFO L78 Accepts]: Start accepts. Automaton has 24392 states and 34142 transitions. Word has length 283 [2021-11-12 23:11:42,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:11:42,734 INFO L470 AbstractCegarLoop]: Abstraction has 24392 states and 34142 transitions. [2021-11-12 23:11:42,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 4 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2021-11-12 23:11:42,734 INFO L276 IsEmpty]: Start isEmpty. Operand 24392 states and 34142 transitions. [2021-11-12 23:11:42,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2021-11-12 23:11:42,746 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:42,748 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 16, 16, 16, 16, 16, 16, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:11:42,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:11:42,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:11:42,966 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:11:42,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:42,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1931650670, now seen corresponding path program 1 times [2021-11-12 23:11:42,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:11:42,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [578517123] [2021-11-12 23:11:42,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:42,989 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:11:42,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:11:42,990 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:11:43,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:12:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:12:24,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 5704 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:12:24,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:12:25,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1552 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 1476 trivial. 0 not checked. [2021-11-12 23:12:25,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:12:26,656 INFO L134 CoverageAnalysis]: Checked inductivity of 1552 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 1539 trivial. 0 not checked. [2021-11-12 23:12:26,656 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:12:26,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [578517123] [2021-11-12 23:12:26,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [578517123] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:12:26,657 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:12:26,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:12:26,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673563661] [2021-11-12 23:12:26,657 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:12:26,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:12:26,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:12:26,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:12:26,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:12:26,660 INFO L87 Difference]: Start difference. First operand 24392 states and 34142 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 4 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) [2021-11-12 23:12:29,509 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:12:52,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:12:52,171 INFO L93 Difference]: Finished difference Result 54968 states and 76834 transitions. [2021-11-12 23:12:52,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:12:52,172 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 4 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) Word has length 363 [2021-11-12 23:12:52,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:12:52,326 INFO L225 Difference]: With dead ends: 54968 [2021-11-12 23:12:52,326 INFO L226 Difference]: Without dead ends: 30613 [2021-11-12 23:12:52,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 724 GetRequests, 722 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:12:52,414 INFO L933 BasicCegarLoop]: 9711 mSDtfsCounter, 8392 mSDsluCounter, 8043 mSDsCounter, 0 mSdLazyCounter, 1925 mSolverCounterSat, 33 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23208.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8392 SdHoareTripleChecker+Valid, 17754 SdHoareTripleChecker+Invalid, 1959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 38.84ms SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1925 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24457.67ms IncrementalHoareTripleChecker+Time [2021-11-12 23:12:52,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8392 Valid, 17754 Invalid, 1959 Unknown, 0 Unchecked, 38.84ms Time], IncrementalHoareTripleChecker [33 Valid, 1925 Invalid, 1 Unknown, 0 Unchecked, 24457.67ms Time] [2021-11-12 23:12:52,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30613 states. [2021-11-12 23:12:54,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30613 to 30601. [2021-11-12 23:12:54,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30601 states, 20542 states have (on average 1.2380488754746373) internal successors, (25432), 20804 states have internal predecessors, (25432), 8640 states have call successors, (8640), 1419 states have call predecessors, (8640), 1417 states have return successors, (8641), 8567 states have call predecessors, (8641), 8640 states have call successors, (8641) [2021-11-12 23:12:55,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30601 states to 30601 states and 42713 transitions. [2021-11-12 23:12:55,090 INFO L78 Accepts]: Start accepts. Automaton has 30601 states and 42713 transitions. Word has length 363 [2021-11-12 23:12:55,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:12:55,094 INFO L470 AbstractCegarLoop]: Abstraction has 30601 states and 42713 transitions. [2021-11-12 23:12:55,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 4 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) [2021-11-12 23:12:55,095 INFO L276 IsEmpty]: Start isEmpty. Operand 30601 states and 42713 transitions. [2021-11-12 23:12:55,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2021-11-12 23:12:55,109 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:12:55,110 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 16, 16, 16, 16, 16, 16, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:12:55,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:12:55,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:12:55,328 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:12:55,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:12:55,329 INFO L85 PathProgramCache]: Analyzing trace with hash 298139, now seen corresponding path program 1 times [2021-11-12 23:12:55,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:12:55,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [922946045] [2021-11-12 23:12:55,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:12:55,350 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:12:55,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:12:55,351 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:12:55,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 23:13:37,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:13:37,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 5745 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:13:37,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:13:39,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1715 backedges. 236 proven. 0 refuted. 0 times theorem prover too weak. 1479 trivial. 0 not checked. [2021-11-12 23:13:39,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:13:40,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1715 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 1674 trivial. 0 not checked. [2021-11-12 23:13:40,643 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:13:40,643 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [922946045] [2021-11-12 23:13:40,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [922946045] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:13:40,643 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:13:40,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:13:40,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204521583] [2021-11-12 23:13:40,644 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:13:40,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:13:40,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:13:40,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:13:40,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:13:40,646 INFO L87 Difference]: Start difference. First operand 30601 states and 42713 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 4 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (43), 4 states have call predecessors, (43), 4 states have call successors, (43) [2021-11-12 23:13:43,606 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.85s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:14:07,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:14:07,256 INFO L93 Difference]: Finished difference Result 68863 states and 96118 transitions. [2021-11-12 23:14:07,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:14:07,257 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 4 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (43), 4 states have call predecessors, (43), 4 states have call successors, (43) Word has length 383 [2021-11-12 23:14:07,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:14:07,610 INFO L225 Difference]: With dead ends: 68863 [2021-11-12 23:14:07,610 INFO L226 Difference]: Without dead ends: 38299 [2021-11-12 23:14:07,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 764 GetRequests, 762 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:14:07,709 INFO L933 BasicCegarLoop]: 9069 mSDtfsCounter, 8430 mSDsluCounter, 7215 mSDsCounter, 0 mSdLazyCounter, 1817 mSolverCounterSat, 34 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23760.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8430 SdHoareTripleChecker+Valid, 16284 SdHoareTripleChecker+Invalid, 1852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 39.89ms SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1817 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24927.65ms IncrementalHoareTripleChecker+Time [2021-11-12 23:14:07,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8430 Valid, 16284 Invalid, 1852 Unknown, 0 Unchecked, 39.89ms Time], IncrementalHoareTripleChecker [34 Valid, 1817 Invalid, 1 Unknown, 0 Unchecked, 24927.65ms Time] [2021-11-12 23:14:07,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38299 states. [2021-11-12 23:14:10,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38299 to 38287. [2021-11-12 23:14:10,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38287 states, 25711 states have (on average 1.2376414764108747) internal successors, (31821), 26035 states have internal predecessors, (31821), 10800 states have call successors, (10800), 1776 states have call predecessors, (10800), 1774 states have return successors, (10801), 10711 states have call predecessors, (10801), 10800 states have call successors, (10801) [2021-11-12 23:14:10,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38287 states to 38287 states and 53422 transitions. [2021-11-12 23:14:10,576 INFO L78 Accepts]: Start accepts. Automaton has 38287 states and 53422 transitions. Word has length 383 [2021-11-12 23:14:10,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:14:10,577 INFO L470 AbstractCegarLoop]: Abstraction has 38287 states and 53422 transitions. [2021-11-12 23:14:10,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 4 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (43), 4 states have call predecessors, (43), 4 states have call successors, (43) [2021-11-12 23:14:10,577 INFO L276 IsEmpty]: Start isEmpty. Operand 38287 states and 53422 transitions. [2021-11-12 23:14:10,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2021-11-12 23:14:10,608 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:14:10,608 INFO L514 BasicCegarLoop]: trace histogram [26, 26, 16, 16, 16, 16, 16, 16, 10, 10, 10, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:14:10,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:14:10,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:14:10,823 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:14:10,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:14:10,823 INFO L85 PathProgramCache]: Analyzing trace with hash -319961843, now seen corresponding path program 1 times [2021-11-12 23:14:10,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:14:10,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [434577569] [2021-11-12 23:14:10,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:14:10,841 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:14:10,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:14:10,842 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:14:10,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 23:14:54,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:14:55,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 5873 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:14:55,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:14:57,100 INFO L134 CoverageAnalysis]: Checked inductivity of 1995 backedges. 290 proven. 0 refuted. 0 times theorem prover too weak. 1705 trivial. 0 not checked. [2021-11-12 23:14:57,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:14:58,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1995 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 1918 trivial. 0 not checked. [2021-11-12 23:14:58,856 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:14:58,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [434577569] [2021-11-12 23:14:58,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [434577569] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:14:58,856 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:14:58,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:14:58,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577929524] [2021-11-12 23:14:58,857 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:14:58,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:14:58,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:14:58,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:14:58,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:14:58,862 INFO L87 Difference]: Start difference. First operand 38287 states and 53422 transitions. Second operand has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 4 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (47), 4 states have call predecessors, (47), 4 states have call successors, (47) [2021-11-12 23:15:01,963 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:15:28,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:15:28,059 INFO L93 Difference]: Finished difference Result 82882 states and 115683 transitions. [2021-11-12 23:15:28,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:15:28,060 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 4 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (47), 4 states have call predecessors, (47), 4 states have call successors, (47) Word has length 446 [2021-11-12 23:15:28,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:15:28,305 INFO L225 Difference]: With dead ends: 82882 [2021-11-12 23:15:28,305 INFO L226 Difference]: Without dead ends: 44653 [2021-11-12 23:15:28,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 890 GetRequests, 888 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:15:28,465 INFO L933 BasicCegarLoop]: 8345 mSDtfsCounter, 8409 mSDsluCounter, 7375 mSDsCounter, 0 mSdLazyCounter, 1953 mSolverCounterSat, 35 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25730.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8409 SdHoareTripleChecker+Valid, 15720 SdHoareTripleChecker+Invalid, 1989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 41.07ms SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1953 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27016.56ms IncrementalHoareTripleChecker+Time [2021-11-12 23:15:28,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8409 Valid, 15720 Invalid, 1989 Unknown, 0 Unchecked, 41.07ms Time], IncrementalHoareTripleChecker [35 Valid, 1953 Invalid, 1 Unknown, 0 Unchecked, 27016.56ms Time] [2021-11-12 23:15:28,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44653 states. [2021-11-12 23:15:31,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44653 to 44641. [2021-11-12 23:15:31,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44641 states, 29999 states have (on average 1.2379412647088237) internal successors, (37137), 30381 states have internal predecessors, (37137), 12586 states have call successors, (12586), 2056 states have call predecessors, (12586), 2054 states have return successors, (12587), 12481 states have call predecessors, (12587), 12586 states have call successors, (12587) [2021-11-12 23:15:31,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44641 states to 44641 states and 62310 transitions. [2021-11-12 23:15:31,537 INFO L78 Accepts]: Start accepts. Automaton has 44641 states and 62310 transitions. Word has length 446 [2021-11-12 23:15:31,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:15:31,538 INFO L470 AbstractCegarLoop]: Abstraction has 44641 states and 62310 transitions. [2021-11-12 23:15:31,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 4 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (47), 4 states have call predecessors, (47), 4 states have call successors, (47) [2021-11-12 23:15:31,538 INFO L276 IsEmpty]: Start isEmpty. Operand 44641 states and 62310 transitions. [2021-11-12 23:15:31,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2021-11-12 23:15:31,558 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:15:31,558 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 16, 16, 16, 16, 16, 16, 11, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:15:31,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 23:15:31,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:15:31,783 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:15:31,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:15:31,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1327140255, now seen corresponding path program 1 times [2021-11-12 23:15:31,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:15:31,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [945466641] [2021-11-12 23:15:31,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:15:31,797 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:15:31,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:15:31,797 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:15:31,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 23:16:14,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:16:14,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 5882 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:16:14,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:16:16,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1969 backedges. 267 proven. 0 refuted. 0 times theorem prover too weak. 1702 trivial. 0 not checked. [2021-11-12 23:16:16,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:16:17,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1969 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 1893 trivial. 0 not checked. [2021-11-12 23:16:17,559 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:16:17,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [945466641] [2021-11-12 23:16:17,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [945466641] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:16:17,560 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:16:17,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:16:17,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689736752] [2021-11-12 23:16:17,561 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:16:17,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:16:17,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:16:17,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:16:17,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:16:17,563 INFO L87 Difference]: Start difference. First operand 44641 states and 62310 transitions. Second operand has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 4 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) [2021-11-12 23:16:20,414 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:16:46,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:16:46,139 INFO L93 Difference]: Finished difference Result 95574 states and 133429 transitions. [2021-11-12 23:16:46,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:16:46,140 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 4 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) Word has length 451 [2021-11-12 23:16:46,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:16:46,342 INFO L225 Difference]: With dead ends: 95574 [2021-11-12 23:16:46,343 INFO L226 Difference]: Without dead ends: 50991 [2021-11-12 23:16:46,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 900 GetRequests, 898 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:16:46,672 INFO L933 BasicCegarLoop]: 9210 mSDtfsCounter, 8424 mSDsluCounter, 7361 mSDsCounter, 0 mSdLazyCounter, 1950 mSolverCounterSat, 35 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24937.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8424 SdHoareTripleChecker+Valid, 16571 SdHoareTripleChecker+Invalid, 1986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 40.50ms SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1950 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26154.78ms IncrementalHoareTripleChecker+Time [2021-11-12 23:16:46,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8424 Valid, 16571 Invalid, 1986 Unknown, 0 Unchecked, 40.50ms Time], IncrementalHoareTripleChecker [35 Valid, 1950 Invalid, 1 Unknown, 0 Unchecked, 26154.78ms Time] [2021-11-12 23:16:46,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50991 states. [2021-11-12 23:16:49,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50991 to 50979. [2021-11-12 23:16:49,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50979 states, 34269 states have (on average 1.2378826344509615) internal successors, (42421), 34709 states have internal predecessors, (42421), 14372 states have call successors, (14372), 2338 states have call predecessors, (14372), 2336 states have return successors, (14373), 14251 states have call predecessors, (14373), 14372 states have call successors, (14373) [2021-11-12 23:16:50,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50979 states to 50979 states and 71166 transitions. [2021-11-12 23:16:50,188 INFO L78 Accepts]: Start accepts. Automaton has 50979 states and 71166 transitions. Word has length 451 [2021-11-12 23:16:50,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:16:50,189 INFO L470 AbstractCegarLoop]: Abstraction has 50979 states and 71166 transitions. [2021-11-12 23:16:50,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 4 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) [2021-11-12 23:16:50,190 INFO L276 IsEmpty]: Start isEmpty. Operand 50979 states and 71166 transitions. [2021-11-12 23:16:50,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2021-11-12 23:16:50,205 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:16:50,206 INFO L514 BasicCegarLoop]: trace histogram [26, 26, 16, 16, 16, 16, 16, 16, 11, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:16:50,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-12 23:16:50,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:16:50,427 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:16:50,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:16:50,428 INFO L85 PathProgramCache]: Analyzing trace with hash -544375116, now seen corresponding path program 1 times [2021-11-12 23:16:50,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:16:50,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [492713673] [2021-11-12 23:16:50,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:16:50,441 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:16:50,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:16:50,442 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:16:50,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c174ce7e-edce-4076-b0d5-7cbf993edee6/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process