./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH --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 3acbab6b9aaee88273e5c2573b1301b2b4d4059e0d0ec0927c600e9ad855395b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:47:47,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:47:47,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:47:47,755 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:47:47,756 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:47:47,757 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:47:47,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:47:47,761 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:47:47,763 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:47:47,764 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:47:47,765 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:47:47,767 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:47:47,767 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:47:47,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:47:47,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:47:47,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:47:47,773 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:47:47,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:47:47,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:47:47,779 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:47:47,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:47:47,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:47:47,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:47:47,785 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:47:47,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:47:47,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:47:47,790 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:47:47,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:47:47,792 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:47:47,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:47:47,794 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:47:47,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:47:47,796 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:47:47,797 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:47:47,798 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:47:47,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:47:47,799 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:47:47,800 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:47:47,800 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:47:47,801 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:47:47,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:47:47,803 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:47:47,828 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:47:47,829 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:47:47,830 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:47:47,830 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:47:47,830 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:47:47,830 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:47:47,831 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:47:47,831 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:47:47,832 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:47:47,832 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:47:47,832 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:47:47,832 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:47:47,833 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:47:47,833 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:47:47,833 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:47:47,834 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:47:47,835 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:47:47,835 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:47:47,835 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:47:47,835 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:47:47,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:47:47,836 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:47:47,836 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:47:47,837 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:47:47,837 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:47:47,837 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:47:47,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:47:47,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:47:47,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:47:47,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:47:47,839 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:47:47,839 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:47:47,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:47:47,840 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:47:47,840 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:47:47,840 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:47:47,841 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_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3acbab6b9aaee88273e5c2573b1301b2b4d4059e0d0ec0927c600e9ad855395b [2021-11-03 04:47:48,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:47:48,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:47:48,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:47:48,113 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:47:48,113 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:47:48,114 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2021-11-03 04:47:48,203 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/data/f0cd2b790/47f6cd23690841ffb3a90fd6a074dc51/FLAG5122a8c8f [2021-11-03 04:47:48,949 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:47:48,950 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2021-11-03 04:47:48,983 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/data/f0cd2b790/47f6cd23690841ffb3a90fd6a074dc51/FLAG5122a8c8f [2021-11-03 04:47:49,028 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/data/f0cd2b790/47f6cd23690841ffb3a90fd6a074dc51 [2021-11-03 04:47:49,033 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:47:49,035 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:47:49,038 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:47:49,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:47:49,042 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:47:49,043 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:47:49" (1/1) ... [2021-11-03 04:47:49,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ab11fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:47:49, skipping insertion in model container [2021-11-03 04:47:49,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:47:49" (1/1) ... [2021-11-03 04:47:49,054 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:47:49,191 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:47:50,053 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_8b0d1407-2340-4bdf-88fd-21af933f0c71/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i[185252,185265] [2021-11-03 04:47:50,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:47:50,260 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) [2021-11-03 04:47:50,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1e0ca6b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:47:50, skipping insertion in model container [2021-11-03 04:47:50,260 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:47:50,261 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 04:47:50,263 INFO L168 Benchmark]: Toolchain (without parser) took 1227.04 ms. Allocated memory was 121.6 MB in the beginning and 172.0 MB in the end (delta: 50.3 MB). Free memory was 76.7 MB in the beginning and 135.3 MB in the end (delta: -58.6 MB). Peak memory consumption was 36.8 MB. Max. memory is 16.1 GB. [2021-11-03 04:47:50,264 INFO L168 Benchmark]: CDTParser took 0.64 ms. Allocated memory is still 121.6 MB. Free memory was 92.7 MB in the beginning and 92.6 MB in the end (delta: 30.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:47:50,265 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1222.60 ms. Allocated memory was 121.6 MB in the beginning and 172.0 MB in the end (delta: 50.3 MB). Free memory was 76.4 MB in the beginning and 135.3 MB in the end (delta: -58.8 MB). Peak memory consumption was 34.7 MB. Max. memory is 16.1 GB. [2021-11-03 04:47:50,278 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64 ms. Allocated memory is still 121.6 MB. Free memory was 92.7 MB in the beginning and 92.6 MB in the end (delta: 30.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1222.60 ms. Allocated memory was 121.6 MB in the beginning and 172.0 MB in the end (delta: 50.3 MB). Free memory was 76.4 MB in the beginning and 135.3 MB in the end (delta: -58.8 MB). Peak memory consumption was 34.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5975]: 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_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH --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 3acbab6b9aaee88273e5c2573b1301b2b4d4059e0d0ec0927c600e9ad855395b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:47:52,435 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:47:52,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:47:52,476 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:47:52,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:47:52,478 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:47:52,479 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:47:52,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:47:52,483 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:47:52,485 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:47:52,486 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:47:52,487 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:47:52,487 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:47:52,489 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:47:52,490 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:47:52,491 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:47:52,492 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:47:52,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:47:52,495 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:47:52,497 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:47:52,499 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:47:52,500 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:47:52,502 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:47:52,502 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:47:52,506 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:47:52,506 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:47:52,507 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:47:52,508 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:47:52,508 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:47:52,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:47:52,510 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:47:52,510 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:47:52,511 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:47:52,512 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:47:52,513 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:47:52,514 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:47:52,514 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:47:52,519 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:47:52,520 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:47:52,521 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:47:52,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:47:52,524 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:47:52,561 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:47:52,561 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:47:52,563 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:47:52,563 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:47:52,563 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:47:52,563 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:47:52,564 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:47:52,564 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:47:52,564 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:47:52,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:47:52,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:47:52,567 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:47:52,567 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:47:52,567 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:47:52,567 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:47:52,567 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:47:52,568 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:47:52,568 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:47:52,568 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:47:52,568 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:47:52,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:47:52,569 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:47:52,569 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:47:52,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:47:52,570 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:47:52,570 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:47:52,570 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:47:52,570 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:47:52,570 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:47:52,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:47:52,571 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:47:52,571 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:47:52,571 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_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3acbab6b9aaee88273e5c2573b1301b2b4d4059e0d0ec0927c600e9ad855395b [2021-11-03 04:47:52,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:47:52,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:47:52,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:47:52,968 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:47:52,970 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:47:52,971 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2021-11-03 04:47:53,039 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/data/77bb7639a/d52761cb537a42e88618746354268858/FLAG92f3e21d8 [2021-11-03 04:47:54,005 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:47:54,005 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2021-11-03 04:47:54,063 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/data/77bb7639a/d52761cb537a42e88618746354268858/FLAG92f3e21d8 [2021-11-03 04:47:54,507 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/data/77bb7639a/d52761cb537a42e88618746354268858 [2021-11-03 04:47:54,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:47:54,512 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:47:54,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:47:54,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:47:54,517 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:47:54,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:47:54" (1/1) ... [2021-11-03 04:47:54,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28e25e4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:47:54, skipping insertion in model container [2021-11-03 04:47:54,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:47:54" (1/1) ... [2021-11-03 04:47:54,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:47:54,639 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:47:55,611 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_8b0d1407-2340-4bdf-88fd-21af933f0c71/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i[185252,185265] [2021-11-03 04:47:55,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:47:55,844 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:47:55,885 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:47:56,087 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_8b0d1407-2340-4bdf-88fd-21af933f0c71/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i[185252,185265] [2021-11-03 04:47:56,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:47:56,126 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:47:56,301 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_8b0d1407-2340-4bdf-88fd-21af933f0c71/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i[185252,185265] [2021-11-03 04:47:56,335 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:47:56,439 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:47:56,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:47:56 WrapperNode [2021-11-03 04:47:56,440 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:47:56,441 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:47:56,441 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:47:56,442 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:47:56,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:47:56" (1/1) ... [2021-11-03 04:47:56,502 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:47:56" (1/1) ... [2021-11-03 04:47:56,569 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:47:56,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:47:56,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:47:56,571 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:47:56,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:47:56" (1/1) ... [2021-11-03 04:47:56,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:47:56" (1/1) ... [2021-11-03 04:47:56,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:47:56" (1/1) ... [2021-11-03 04:47:56,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:47:56" (1/1) ... [2021-11-03 04:47:56,666 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:47:56" (1/1) ... [2021-11-03 04:47:56,675 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:47:56" (1/1) ... [2021-11-03 04:47:56,683 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:47:56" (1/1) ... [2021-11-03 04:47:56,710 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:47:56,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:47:56,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:47:56,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:47:56,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:47:56" (1/1) ... [2021-11-03 04:47:56,729 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:47:56,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:47:56,764 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:47:56,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:47:56,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 04:47:56,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:47:56,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:47:56,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:47:56,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:47:56,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:47:56,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-03 04:47:56,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:47:56,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:47:56,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 04:47:56,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:47:56,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:48:00,436 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:48:00,437 INFO L299 CfgBuilder]: Removed 141 assume(true) statements. [2021-11-03 04:48:00,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:48:00 BoogieIcfgContainer [2021-11-03 04:48:00,439 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:48:00,441 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:48:00,441 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:48:00,445 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:48:00,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:47:54" (1/3) ... [2021-11-03 04:48:00,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@271cd5a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:48:00, skipping insertion in model container [2021-11-03 04:48:00,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:47:56" (2/3) ... [2021-11-03 04:48:00,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@271cd5a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:48:00, skipping insertion in model container [2021-11-03 04:48:00,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:48:00" (3/3) ... [2021-11-03 04:48:00,448 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2021-11-03 04:48:00,454 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:48:00,454 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-03 04:48:00,501 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:48:00,507 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 [2021-11-03 04:48:00,507 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-03 04:48:00,525 INFO L276 IsEmpty]: Start isEmpty. Operand has 157 states, 150 states have (on average 1.5) internal successors, (225), 156 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:48:00,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-03 04:48:00,534 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:48:00,535 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:48:00,535 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:48:00,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:48:00,547 INFO L85 PathProgramCache]: Analyzing trace with hash 214162578, now seen corresponding path program 1 times [2021-11-03 04:48:00,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:48:00,564 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1161563868] [2021-11-03 04:48:00,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:48:00,565 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:48:00,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:48:00,571 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:48:00,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:48:01,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:48:02,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 1236 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:48:02,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:48:02,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:48:02,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:48:02,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:48:02,394 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:48:02,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1161563868] [2021-11-03 04:48:02,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1161563868] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:48:02,396 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:48:02,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:48:02,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197299929] [2021-11-03 04:48:02,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:48:02,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:48:02,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:48:02,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:48:02,427 INFO L87 Difference]: Start difference. First operand has 157 states, 150 states have (on average 1.5) internal successors, (225), 156 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:48:02,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:48:02,464 INFO L93 Difference]: Finished difference Result 310 states and 445 transitions. [2021-11-03 04:48:02,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:48:02,465 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-03 04:48:02,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:48:02,477 INFO L225 Difference]: With dead ends: 310 [2021-11-03 04:48:02,477 INFO L226 Difference]: Without dead ends: 144 [2021-11-03 04:48:02,480 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:48:02,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-11-03 04:48:02,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2021-11-03 04:48:02,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 138 states have (on average 1.3768115942028984) internal successors, (190), 143 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:48:02,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 190 transitions. [2021-11-03 04:48:02,550 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 190 transitions. Word has length 39 [2021-11-03 04:48:02,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:48:02,551 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 190 transitions. [2021-11-03 04:48:02,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:48:02,551 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 190 transitions. [2021-11-03 04:48:02,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-03 04:48:02,554 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:48:02,554 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:48:02,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:48:02,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:48:02,770 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:48:02,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:48:02,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1366579640, now seen corresponding path program 1 times [2021-11-03 04:48:02,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:48:02,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [195126693] [2021-11-03 04:48:02,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:48:02,774 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:48:02,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:48:02,775 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:48:02,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:48:03,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:48:04,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 1236 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:48:04,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:48:04,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:48:04,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:48:04,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:48:04,318 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:48:04,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [195126693] [2021-11-03 04:48:04,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [195126693] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:48:04,320 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:48:04,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:48:04,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972627495] [2021-11-03 04:48:04,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:48:04,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:48:04,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:48:04,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:48:04,327 INFO L87 Difference]: Start difference. First operand 144 states and 190 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:48:04,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:48:04,386 INFO L93 Difference]: Finished difference Result 262 states and 355 transitions. [2021-11-03 04:48:04,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:48:04,388 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-03 04:48:04,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:48:04,396 INFO L225 Difference]: With dead ends: 262 [2021-11-03 04:48:04,398 INFO L226 Difference]: Without dead ends: 146 [2021-11-03 04:48:04,400 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:48:04,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-11-03 04:48:04,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2021-11-03 04:48:04,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 140 states have (on average 1.3714285714285714) internal successors, (192), 145 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:48:04,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 192 transitions. [2021-11-03 04:48:04,420 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 192 transitions. Word has length 39 [2021-11-03 04:48:04,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:48:04,426 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 192 transitions. [2021-11-03 04:48:04,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:48:04,427 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 192 transitions. [2021-11-03 04:48:04,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-03 04:48:04,435 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:48:04,436 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-03 04:48:04,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:48:04,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:48:04,660 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:48:04,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:48:04,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1435661640, now seen corresponding path program 1 times [2021-11-03 04:48:04,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:48:04,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [36153432] [2021-11-03 04:48:04,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:48:04,665 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:48:04,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:48:04,672 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:48:04,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:48:05,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:48:05,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:48:05,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:48:06,168 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:48:06,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:48:06,490 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:48:06,491 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:48:06,491 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [36153432] [2021-11-03 04:48:06,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [36153432] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:48:06,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [728502119] [2021-11-03 04:48:06,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:48:06,497 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 04:48:06,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 04:48:06,499 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 04:48:06,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-11-03 04:48:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:48:07,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:48:07,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:48:07,495 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 04:48:07,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:48:07,588 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 04:48:07,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [728502119] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:48:07,588 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-03 04:48:07,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 9 [2021-11-03 04:48:07,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947466192] [2021-11-03 04:48:07,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:48:07,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:48:07,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:48:07,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:48:07,591 INFO L87 Difference]: Start difference. First operand 146 states and 192 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:48:07,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:48:07,809 INFO L93 Difference]: Finished difference Result 349 states and 481 transitions. [2021-11-03 04:48:07,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:48:07,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-11-03 04:48:07,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:48:07,812 INFO L225 Difference]: With dead ends: 349 [2021-11-03 04:48:07,813 INFO L226 Difference]: Without dead ends: 235 [2021-11-03 04:48:07,813 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:48:07,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2021-11-03 04:48:07,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 221. [2021-11-03 04:48:07,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 215 states have (on average 1.4325581395348836) internal successors, (308), 220 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:48:07,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 308 transitions. [2021-11-03 04:48:07,840 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 308 transitions. Word has length 41 [2021-11-03 04:48:07,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:48:07,841 INFO L470 AbstractCegarLoop]: Abstraction has 221 states and 308 transitions. [2021-11-03 04:48:07,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:48:07,842 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 308 transitions. [2021-11-03 04:48:07,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-03 04:48:07,842 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:48:07,843 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-03 04:48:07,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:48:08,065 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2021-11-03 04:48:08,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt [2021-11-03 04:48:08,260 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:48:08,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:48:08,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1265334357, now seen corresponding path program 1 times [2021-11-03 04:48:08,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:48:08,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [305224719] [2021-11-03 04:48:08,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:48:08,264 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:48:08,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:48:08,265 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:48:08,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:48:09,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:48:09,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:48:09,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:48:09,736 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:48:09,737 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:48:10,025 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:48:10,026 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:48:10,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [305224719] [2021-11-03 04:48:10,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [305224719] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:48:10,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1803370813] [2021-11-03 04:48:10,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:48:10,027 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 04:48:10,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 04:48:10,028 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 04:48:10,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-03 04:48:10,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:48:10,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:48:10,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:48:11,078 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 04:48:11,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:48:11,262 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 04:48:11,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1803370813] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:48:11,262 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-03 04:48:11,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [5, 5] total 9 [2021-11-03 04:48:11,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847283309] [2021-11-03 04:48:11,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:48:11,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:48:11,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:48:11,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:48:11,265 INFO L87 Difference]: Start difference. First operand 221 states and 308 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:48:11,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:48:11,280 INFO L93 Difference]: Finished difference Result 221 states and 308 transitions. [2021-11-03 04:48:11,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:48:11,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-03 04:48:11,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:48:11,283 INFO L225 Difference]: With dead ends: 221 [2021-11-03 04:48:11,283 INFO L226 Difference]: Without dead ends: 219 [2021-11-03 04:48:11,284 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:48:11,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-11-03 04:48:11,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2021-11-03 04:48:11,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.4299065420560748) internal successors, (306), 218 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:48:11,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 306 transitions. [2021-11-03 04:48:11,316 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 306 transitions. Word has length 44 [2021-11-03 04:48:11,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:48:11,317 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 306 transitions. [2021-11-03 04:48:11,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:48:11,317 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 306 transitions. [2021-11-03 04:48:11,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-03 04:48:11,318 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:48:11,319 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-03 04:48:11,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:48:11,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-11-03 04:48:11,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt [2021-11-03 04:48:11,727 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:48:11,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:48:11,728 INFO L85 PathProgramCache]: Analyzing trace with hash -570652871, now seen corresponding path program 1 times [2021-11-03 04:48:11,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:48:11,730 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1868073884] [2021-11-03 04:48:11,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:48:11,731 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:48:11,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:48:11,743 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:48:11,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:48:13,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:48:13,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 1241 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:48:13,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:48:13,301 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:48:13,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:48:13,617 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:48:13,617 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:48:13,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1868073884] [2021-11-03 04:48:13,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1868073884] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:48:13,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2068993741] [2021-11-03 04:48:13,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:48:13,622 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 04:48:13,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 04:48:13,627 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 04:48:13,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-03 04:48:14,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:48:14,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 1241 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:48:14,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:48:14,656 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 04:48:14,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:48:14,833 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 04:48:14,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2068993741] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:48:14,833 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-03 04:48:14,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [5, 5] total 9 [2021-11-03 04:48:14,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003048991] [2021-11-03 04:48:14,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:48:14,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:48:14,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:48:14,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:48:14,835 INFO L87 Difference]: Start difference. First operand 219 states and 306 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:48:14,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:48:14,853 INFO L93 Difference]: Finished difference Result 219 states and 306 transitions. [2021-11-03 04:48:14,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:48:14,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-11-03 04:48:14,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:48:14,856 INFO L225 Difference]: With dead ends: 219 [2021-11-03 04:48:14,857 INFO L226 Difference]: Without dead ends: 217 [2021-11-03 04:48:14,857 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:48:14,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-11-03 04:48:14,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2021-11-03 04:48:14,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 213 states have (on average 1.4272300469483568) internal successors, (304), 216 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:48:14,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 304 transitions. [2021-11-03 04:48:14,871 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 304 transitions. Word has length 45 [2021-11-03 04:48:14,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:48:14,871 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 304 transitions. [2021-11-03 04:48:14,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:48:14,872 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 304 transitions. [2021-11-03 04:48:14,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-03 04:48:14,873 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:48:14,873 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-03 04:48:14,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-11-03 04:48:15,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-03 04:48:15,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:48:15,286 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:48:15,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:48:15,287 INFO L85 PathProgramCache]: Analyzing trace with hash -510363275, now seen corresponding path program 1 times [2021-11-03 04:48:15,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:48:15,289 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1128787765] [2021-11-03 04:48:15,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:48:15,289 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:48:15,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:48:15,290 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:48:15,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 04:48:16,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:48:16,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 1242 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:48:16,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:48:16,745 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:48:16,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:48:17,007 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:48:17,008 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:48:17,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1128787765] [2021-11-03 04:48:17,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1128787765] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:48:17,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1414502013] [2021-11-03 04:48:17,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:48:17,008 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 04:48:17,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 04:48:17,027 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 04:48:17,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-11-03 04:48:17,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:48:17,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 1242 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:48:17,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:48:17,983 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 04:48:17,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:48:18,163 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 04:48:18,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1414502013] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:48:18,163 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-03 04:48:18,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [5, 5] total 9 [2021-11-03 04:48:18,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616708056] [2021-11-03 04:48:18,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:48:18,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:48:18,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:48:18,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:48:18,165 INFO L87 Difference]: Start difference. First operand 217 states and 304 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:48:18,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:48:18,178 INFO L93 Difference]: Finished difference Result 217 states and 304 transitions. [2021-11-03 04:48:18,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:48:18,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-11-03 04:48:18,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:48:18,183 INFO L225 Difference]: With dead ends: 217 [2021-11-03 04:48:18,183 INFO L226 Difference]: Without dead ends: 215 [2021-11-03 04:48:18,184 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:48:18,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-11-03 04:48:18,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2021-11-03 04:48:18,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 212 states have (on average 1.4245283018867925) internal successors, (302), 214 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:48:18,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 302 transitions. [2021-11-03 04:48:18,198 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 302 transitions. Word has length 46 [2021-11-03 04:48:18,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:48:18,199 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 302 transitions. [2021-11-03 04:48:18,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:48:18,199 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 302 transitions. [2021-11-03 04:48:18,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-03 04:48:18,200 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:48:18,200 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-03 04:48:18,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 04:48:18,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-11-03 04:48:18,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt [2021-11-03 04:48:18,615 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:48:18,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:48:18,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1358614211, now seen corresponding path program 1 times [2021-11-03 04:48:18,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:48:18,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1997110677] [2021-11-03 04:48:18,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:48:18,617 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:48:18,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:48:18,618 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:48:18,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 04:48:19,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:48:19,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 1243 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:48:19,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:48:20,055 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:48:20,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:48:20,394 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:48:20,394 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:48:20,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1997110677] [2021-11-03 04:48:20,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1997110677] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:48:20,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1997985870] [2021-11-03 04:48:20,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:48:20,395 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 04:48:20,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 04:48:20,411 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 04:48:20,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-11-03 04:48:21,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:48:21,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 1243 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:48:21,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:48:21,552 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 04:48:21,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:48:21,724 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 04:48:21,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1997985870] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:48:21,724 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-03 04:48:21,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [5, 5] total 9 [2021-11-03 04:48:21,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805716292] [2021-11-03 04:48:21,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:48:21,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:48:21,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:48:21,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:48:21,726 INFO L87 Difference]: Start difference. First operand 215 states and 302 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:48:21,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:48:21,762 INFO L93 Difference]: Finished difference Result 574 states and 835 transitions. [2021-11-03 04:48:21,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:48:21,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-11-03 04:48:21,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:48:21,766 INFO L225 Difference]: With dead ends: 574 [2021-11-03 04:48:21,766 INFO L226 Difference]: Without dead ends: 385 [2021-11-03 04:48:21,767 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:48:21,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2021-11-03 04:48:21,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 383. [2021-11-03 04:48:21,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 380 states have (on average 1.4552631578947368) internal successors, (553), 382 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:48:21,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 553 transitions. [2021-11-03 04:48:21,789 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 553 transitions. Word has length 47 [2021-11-03 04:48:21,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:48:21,789 INFO L470 AbstractCegarLoop]: Abstraction has 383 states and 553 transitions. [2021-11-03 04:48:21,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:48:21,790 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 553 transitions. [2021-11-03 04:48:21,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-03 04:48:21,791 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:48:21,791 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-03 04:48:21,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-11-03 04:48:22,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-03 04:48:22,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:48:22,196 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:48:22,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:48:22,196 INFO L85 PathProgramCache]: Analyzing trace with hash 253710387, now seen corresponding path program 1 times [2021-11-03 04:48:22,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:48:22,198 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1574858833] [2021-11-03 04:48:22,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:48:22,198 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:48:22,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:48:22,199 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:48:22,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-03 04:48:23,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:48:23,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:48:23,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:48:23,814 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 04:48:23,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:48:24,080 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 04:48:24,080 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:48:24,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1574858833] [2021-11-03 04:48:24,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1574858833] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:48:24,081 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [208601743] [2021-11-03 04:48:24,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:48:24,081 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 04:48:24,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 04:48:24,083 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 04:48:24,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2021-11-03 04:48:24,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:48:24,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:48:24,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:48:25,178 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-03 04:48:25,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:48:25,304 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-03 04:48:25,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [208601743] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:48:25,304 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-03 04:48:25,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 9 [2021-11-03 04:48:25,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138159912] [2021-11-03 04:48:25,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:48:25,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:48:25,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:48:25,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:48:25,306 INFO L87 Difference]: Start difference. First operand 383 states and 553 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:48:26,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:48:26,779 INFO L93 Difference]: Finished difference Result 734 states and 1073 transitions. [2021-11-03 04:48:26,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:48:26,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-11-03 04:48:26,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:48:26,783 INFO L225 Difference]: With dead ends: 734 [2021-11-03 04:48:26,783 INFO L226 Difference]: Without dead ends: 383 [2021-11-03 04:48:26,784 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:48:26,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2021-11-03 04:48:26,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 383. [2021-11-03 04:48:26,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 380 states have (on average 1.45) internal successors, (551), 382 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:48:26,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 551 transitions. [2021-11-03 04:48:26,803 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 551 transitions. Word has length 68 [2021-11-03 04:48:26,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:48:26,804 INFO L470 AbstractCegarLoop]: Abstraction has 383 states and 551 transitions. [2021-11-03 04:48:26,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:48:26,804 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 551 transitions. [2021-11-03 04:48:26,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-03 04:48:26,805 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:48:26,805 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-03 04:48:26,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-03 04:48:27,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2021-11-03 04:48:27,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt [2021-11-03 04:48:27,219 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:48:27,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:48:27,220 INFO L85 PathProgramCache]: Analyzing trace with hash 332091450, now seen corresponding path program 1 times [2021-11-03 04:48:27,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:48:27,221 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1772713288] [2021-11-03 04:48:27,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:48:27,221 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:48:27,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:48:27,222 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:48:27,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-03 04:48:28,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:48:28,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:48:28,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:48:28,942 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 04:48:28,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:48:29,263 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 04:48:29,263 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:48:29,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1772713288] [2021-11-03 04:48:29,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1772713288] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:48:29,264 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [722397827] [2021-11-03 04:48:29,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:48:29,264 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 04:48:29,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 04:48:29,265 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 04:48:29,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2021-11-03 04:48:31,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:48:31,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:48:31,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:48:32,034 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 04:48:32,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:48:32,196 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 04:48:32,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [722397827] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:48:32,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1272230117] [2021-11-03 04:48:32,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:48:32,197 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:48:32,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:48:32,197 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:48:32,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-03 04:48:33,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:48:33,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 04:48:33,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:48:33,839 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-03 04:48:33,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:48:34,003 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-03 04:48:34,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1272230117] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:48:34,004 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-11-03 04:48:34,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [5, 5, 5, 5] total 13 [2021-11-03 04:48:34,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24397110] [2021-11-03 04:48:34,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 04:48:34,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:48:34,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 04:48:34,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-11-03 04:48:34,006 INFO L87 Difference]: Start difference. First operand 383 states and 551 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:48:34,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:48:34,337 INFO L93 Difference]: Finished difference Result 1385 states and 2054 transitions. [2021-11-03 04:48:34,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-03 04:48:34,338 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-11-03 04:48:34,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:48:34,345 INFO L225 Difference]: With dead ends: 1385 [2021-11-03 04:48:34,345 INFO L226 Difference]: Without dead ends: 1034 [2021-11-03 04:48:34,346 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 399 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2021-11-03 04:48:34,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2021-11-03 04:48:34,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 381. [2021-11-03 04:48:34,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 379 states have (on average 1.4485488126649078) internal successors, (549), 380 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:48:34,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 549 transitions. [2021-11-03 04:48:34,375 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 549 transitions. Word has length 69 [2021-11-03 04:48:34,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:48:34,375 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 549 transitions. [2021-11-03 04:48:34,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:48:34,376 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 549 transitions. [2021-11-03 04:48:34,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-03 04:48:34,377 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:48:34,377 INFO L513 BasicCegarLoop]: trace histogram [3, 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] [2021-11-03 04:48:34,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-03 04:48:34,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-03 04:48:34,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2021-11-03 04:48:34,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt [2021-11-03 04:48:35,000 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:48:35,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:48:35,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1703397231, now seen corresponding path program 1 times [2021-11-03 04:48:35,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:48:35,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [247307581] [2021-11-03 04:48:35,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:48:35,002 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:48:35,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:48:35,002 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:48:35,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-03 04:48:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:48:36,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 1368 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:48:36,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:48:36,964 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 04:48:36,964 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:48:37,350 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 04:48:37,350 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:48:37,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [247307581] [2021-11-03 04:48:37,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [247307581] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:48:37,351 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [942524945] [2021-11-03 04:48:37,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:48:37,351 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 04:48:37,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 04:48:37,358 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 04:48:37,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2021-11-03 04:48:39,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:48:39,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 1368 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:48:39,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:48:40,152 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 04:48:40,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:48:40,335 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 04:48:40,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [942524945] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:48:40,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428405921] [2021-11-03 04:48:40,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:48:40,336 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:48:40,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:48:40,336 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:48:40,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-03 04:48:41,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:48:41,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 1368 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:48:41,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:48:41,986 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-03 04:48:41,986 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:48:42,175 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-03 04:48:42,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428405921] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:48:42,176 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-11-03 04:48:42,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [5, 5, 5, 5] total 14 [2021-11-03 04:48:42,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890180901] [2021-11-03 04:48:42,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:48:42,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:48:42,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:48:42,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-11-03 04:48:42,180 INFO L87 Difference]: Start difference. First operand 381 states and 549 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:48:42,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:48:42,325 INFO L93 Difference]: Finished difference Result 536 states and 785 transitions. [2021-11-03 04:48:42,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:48:42,326 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-11-03 04:48:42,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:48:42,327 INFO L225 Difference]: With dead ends: 536 [2021-11-03 04:48:42,327 INFO L226 Difference]: Without dead ends: 0 [2021-11-03 04:48:42,335 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 427 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2021-11-03 04:48:42,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-03 04:48:42,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-03 04:48:42,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:48:42,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-03 04:48:42,336 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 74 [2021-11-03 04:48:42,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:48:42,336 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-03 04:48:42,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:48:42,337 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-03 04:48:42,337 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-03 04:48:42,340 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 04:48:42,340 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 04:48:42,341 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 04:48:42,341 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 04:48:42,341 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 04:48:42,341 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 04:48:42,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-11-03 04:48:42,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2021-11-03 04:48:42,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-03 04:48:42,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:48:42,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-03 04:48:42,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:48:43,994 INFO L857 garLoopResultBuilder]: For program point L6047(lines 6047 6062) no Hoare annotation was computed. [2021-11-03 04:48:43,995 INFO L857 garLoopResultBuilder]: For program point L6080-2(lines 6067 6122) no Hoare annotation was computed. [2021-11-03 04:48:43,995 INFO L857 garLoopResultBuilder]: For program point L6113(lines 6113 6116) no Hoare annotation was computed. [2021-11-03 04:48:43,995 INFO L857 garLoopResultBuilder]: For program point L6080(lines 6080 6085) no Hoare annotation was computed. [2021-11-03 04:48:43,995 INFO L853 garLoopResultBuilder]: At program point L7005(lines 7004 7006) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:43,995 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 6333) no Hoare annotation was computed. [2021-11-03 04:48:43,995 INFO L857 garLoopResultBuilder]: For program point L6213(line 6213) no Hoare annotation was computed. [2021-11-03 04:48:43,995 INFO L857 garLoopResultBuilder]: For program point L6973(lines 6964 6982) no Hoare annotation was computed. [2021-11-03 04:48:43,995 INFO L857 garLoopResultBuilder]: For program point L6049(lines 6049 6059) no Hoare annotation was computed. [2021-11-03 04:48:43,996 INFO L853 garLoopResultBuilder]: At program point L6347(lines 6336 6349) the Hoare annotation is: (and (not (bvsge |ULTIMATE.start_ldv_undef_int_negative_#res| (_ bv0 32))) (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (not (bvsge ULTIMATE.start_ldv_undef_int_negative_~ret~0 (_ bv0 32))) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:43,996 INFO L857 garLoopResultBuilder]: For program point L6050(line 6050) no Hoare annotation was computed. [2021-11-03 04:48:43,996 INFO L857 garLoopResultBuilder]: For program point L5852(lines 5852 5855) no Hoare annotation was computed. [2021-11-03 04:48:43,996 INFO L857 garLoopResultBuilder]: For program point L5720-1(lines 5720 5722) no Hoare annotation was computed. [2021-11-03 04:48:43,996 INFO L857 garLoopResultBuilder]: For program point L5720-2(lines 5720 5722) no Hoare annotation was computed. [2021-11-03 04:48:43,996 INFO L857 garLoopResultBuilder]: For program point L5720(lines 5720 5722) no Hoare annotation was computed. [2021-11-03 04:48:43,996 INFO L857 garLoopResultBuilder]: For program point L5720-5(lines 5720 5722) no Hoare annotation was computed. [2021-11-03 04:48:43,996 INFO L857 garLoopResultBuilder]: For program point L5720-6(lines 5720 5722) no Hoare annotation was computed. [2021-11-03 04:48:43,996 INFO L857 garLoopResultBuilder]: For program point L5720-3(lines 5720 5722) no Hoare annotation was computed. [2021-11-03 04:48:43,996 INFO L857 garLoopResultBuilder]: For program point L5720-4(lines 5720 5722) no Hoare annotation was computed. [2021-11-03 04:48:43,996 INFO L857 garLoopResultBuilder]: For program point L6051(lines 6051 6055) no Hoare annotation was computed. [2021-11-03 04:48:43,997 INFO L853 garLoopResultBuilder]: At program point L7009(lines 7008 7010) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:43,997 INFO L857 garLoopResultBuilder]: For program point L5721-2(line 5721) no Hoare annotation was computed. [2021-11-03 04:48:43,997 INFO L857 garLoopResultBuilder]: For program point L5721(line 5721) no Hoare annotation was computed. [2021-11-03 04:48:43,997 INFO L857 garLoopResultBuilder]: For program point L5721-6(line 5721) no Hoare annotation was computed. [2021-11-03 04:48:43,997 INFO L857 garLoopResultBuilder]: For program point L5721-4(line 5721) no Hoare annotation was computed. [2021-11-03 04:48:43,997 INFO L857 garLoopResultBuilder]: For program point L5721-10(line 5721) no Hoare annotation was computed. [2021-11-03 04:48:43,997 INFO L857 garLoopResultBuilder]: For program point L5721-8(line 5721) no Hoare annotation was computed. [2021-11-03 04:48:43,997 INFO L857 garLoopResultBuilder]: For program point L5721-12(line 5721) no Hoare annotation was computed. [2021-11-03 04:48:43,997 INFO L857 garLoopResultBuilder]: For program point L6184(line 6184) no Hoare annotation was computed. [2021-11-03 04:48:43,997 INFO L853 garLoopResultBuilder]: At program point L5953(lines 5948 5955) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:43,997 INFO L860 garLoopResultBuilder]: At program point L6977(lines 6962 6983) the Hoare annotation is: true [2021-11-03 04:48:43,998 INFO L857 garLoopResultBuilder]: For program point L6185(lines 6185 6200) no Hoare annotation was computed. [2021-11-03 04:48:43,998 INFO L853 garLoopResultBuilder]: At program point L6318(lines 6307 6320) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:43,998 INFO L853 garLoopResultBuilder]: At program point L6153(lines 6965 6968) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:43,998 INFO L857 garLoopResultBuilder]: For program point L6120(line 6120) no Hoare annotation was computed. [2021-11-03 04:48:43,998 INFO L857 garLoopResultBuilder]: For program point L6946(lines 6946 6952) no Hoare annotation was computed. [2021-11-03 04:48:43,998 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 6333) no Hoare annotation was computed. [2021-11-03 04:48:43,998 INFO L857 garLoopResultBuilder]: For program point L6187(lines 6187 6197) no Hoare annotation was computed. [2021-11-03 04:48:43,998 INFO L857 garLoopResultBuilder]: For program point L6220(line 6220) no Hoare annotation was computed. [2021-11-03 04:48:43,998 INFO L853 garLoopResultBuilder]: At program point L7013(lines 7012 7014) the Hoare annotation is: (and (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res| (_ bv0 32)) (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res| (_ bv0 32)) (= ~ldv_mutex_udev~0 (_ bv2 32)) (= ULTIMATE.start_m5632_recover_~r~0 (_ bv0 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:43,998 INFO L857 garLoopResultBuilder]: For program point L6188(line 6188) no Hoare annotation was computed. [2021-11-03 04:48:43,999 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 6333) no Hoare annotation was computed. [2021-11-03 04:48:43,999 INFO L857 garLoopResultBuilder]: For program point L6189(lines 6189 6193) no Hoare annotation was computed. [2021-11-03 04:48:43,999 INFO L857 garLoopResultBuilder]: For program point L6057(line 6057) no Hoare annotation was computed. [2021-11-03 04:48:43,999 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 6333) no Hoare annotation was computed. [2021-11-03 04:48:43,999 INFO L853 garLoopResultBuilder]: At program point L6223(lines 6002 6228) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:43,999 INFO L853 garLoopResultBuilder]: At program point L7016-1(lines 7015 7017) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:43,999 INFO L853 garLoopResultBuilder]: At program point L7016(lines 7015 7017) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:43,999 INFO L857 garLoopResultBuilder]: For program point L6917-1(lines 6917 6920) no Hoare annotation was computed. [2021-11-03 04:48:43,999 INFO L857 garLoopResultBuilder]: For program point L6917(lines 6917 6920) no Hoare annotation was computed. [2021-11-03 04:48:44,000 INFO L853 garLoopResultBuilder]: At program point L6951(lines 6940 6954) the Hoare annotation is: (let ((.cse0 (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32))) (.cse1 (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32))) (.cse2 (= ~ldv_mutex_lock~0 (_ bv1 32)))) (or (and (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res| (_ bv0 32)) .cse0 .cse1 (= ~ldv_mutex_udev~0 (_ bv2 32)) .cse2) (and (not (bvsge |ULTIMATE.start_ldv_undef_int_negative_#res| (_ bv0 32))) .cse0 .cse1 (not (bvsge ULTIMATE.start_ldv_undef_int_negative_~ret~0 (_ bv0 32))) (= ~ldv_mutex_udev~0 (_ bv1 32)) .cse2 (not (bvsge |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res| (_ bv0 32)))))) [2021-11-03 04:48:44,000 INFO L860 garLoopResultBuilder]: At program point L5795(lines 5794 5797) the Hoare annotation is: true [2021-11-03 04:48:44,000 INFO L860 garLoopResultBuilder]: At program point L5795-1(lines 5794 5797) the Hoare annotation is: true [2021-11-03 04:48:44,000 INFO L860 garLoopResultBuilder]: At program point L5795-4(lines 5794 5797) the Hoare annotation is: true [2021-11-03 04:48:44,000 INFO L860 garLoopResultBuilder]: At program point L5795-5(lines 5794 5797) the Hoare annotation is: true [2021-11-03 04:48:44,000 INFO L860 garLoopResultBuilder]: At program point L5795-2(lines 5794 5797) the Hoare annotation is: true [2021-11-03 04:48:44,000 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 6333) no Hoare annotation was computed. [2021-11-03 04:48:44,000 INFO L860 garLoopResultBuilder]: At program point L5795-3(lines 5794 5797) the Hoare annotation is: true [2021-11-03 04:48:44,000 INFO L860 garLoopResultBuilder]: At program point L5795-8(lines 5794 5797) the Hoare annotation is: true [2021-11-03 04:48:44,001 INFO L860 garLoopResultBuilder]: At program point L5795-6(lines 5794 5797) the Hoare annotation is: true [2021-11-03 04:48:44,001 INFO L860 garLoopResultBuilder]: At program point L5795-7(lines 5794 5797) the Hoare annotation is: true [2021-11-03 04:48:44,001 INFO L857 garLoopResultBuilder]: For program point L6159(line 6159) no Hoare annotation was computed. [2021-11-03 04:48:44,001 INFO L857 garLoopResultBuilder]: For program point L6027(lines 6027 6222) no Hoare annotation was computed. [2021-11-03 04:48:44,001 INFO L857 garLoopResultBuilder]: For program point L6093(line 6093) no Hoare annotation was computed. [2021-11-03 04:48:44,001 INFO L853 garLoopResultBuilder]: At program point L6985(lines 6984 6986) the Hoare annotation is: (and (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res| (_ bv0 32)) (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res| (_ bv0 32)) (= ~ldv_mutex_udev~0 (_ bv2 32)) (= ULTIMATE.start_m5632_recover_~r~0 (_ bv0 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:44,001 INFO L857 garLoopResultBuilder]: For program point L6127(line 6127) no Hoare annotation was computed. [2021-11-03 04:48:44,001 INFO L857 garLoopResultBuilder]: For program point L6094(lines 6094 6098) no Hoare annotation was computed. [2021-11-03 04:48:44,001 INFO L857 garLoopResultBuilder]: For program point L6028(line 6028) no Hoare annotation was computed. [2021-11-03 04:48:44,001 INFO L853 garLoopResultBuilder]: At program point L6326(lines 1 7033) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:44,002 INFO L860 garLoopResultBuilder]: At program point L6227(lines 5979 6229) the Hoare annotation is: true [2021-11-03 04:48:44,002 INFO L857 garLoopResultBuilder]: For program point L6128(lines 6128 6164) no Hoare annotation was computed. [2021-11-03 04:48:44,002 INFO L857 garLoopResultBuilder]: For program point L6029(lines 6029 6044) no Hoare annotation was computed. [2021-11-03 04:48:44,002 INFO L853 garLoopResultBuilder]: At program point L7020(lines 7019 7021) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:44,002 INFO L853 garLoopResultBuilder]: At program point L5765-2(lines 5757 5767) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:44,002 INFO L853 garLoopResultBuilder]: At program point L5765-3(lines 5757 5767) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:44,002 INFO L853 garLoopResultBuilder]: At program point L5765(lines 5757 5767) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:44,002 INFO L853 garLoopResultBuilder]: At program point L5765-1(lines 5757 5767) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:44,002 INFO L853 garLoopResultBuilder]: At program point L5765-6(lines 5757 5767) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:44,002 INFO L853 garLoopResultBuilder]: At program point L5765-4(lines 5757 5767) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:44,003 INFO L853 garLoopResultBuilder]: At program point L5765-5(lines 5757 5767) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:44,003 INFO L857 garLoopResultBuilder]: For program point L6195(line 6195) no Hoare annotation was computed. [2021-11-03 04:48:44,008 INFO L853 garLoopResultBuilder]: At program point L6922(lines 1 7033) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:44,009 INFO L853 garLoopResultBuilder]: At program point L6988(lines 6987 6989) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:44,010 INFO L857 garLoopResultBuilder]: For program point L6856-1(lines 6856 6859) no Hoare annotation was computed. [2021-11-03 04:48:44,010 INFO L857 garLoopResultBuilder]: For program point L6856(lines 6856 6859) no Hoare annotation was computed. [2021-11-03 04:48:44,010 INFO L857 garLoopResultBuilder]: For program point L6130(lines 6130 6161) no Hoare annotation was computed. [2021-11-03 04:48:44,010 INFO L857 garLoopResultBuilder]: For program point L6031(lines 6031 6041) no Hoare annotation was computed. [2021-11-03 04:48:44,010 INFO L857 garLoopResultBuilder]: For program point L6064(line 6064) no Hoare annotation was computed. [2021-11-03 04:48:44,011 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-03 04:48:44,011 INFO L853 garLoopResultBuilder]: At program point L6296(lines 6291 6298) the Hoare annotation is: (let ((.cse0 (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32))) (.cse1 (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32))) (.cse2 (= ~ldv_mutex_lock~0 (_ bv1 32)))) (or (and (not (bvsge |ULTIMATE.start_ldv_undef_int_negative_#res| (_ bv0 32))) .cse0 .cse1 (not (bvsge ULTIMATE.start_ldv_undef_int_negative_~ret~0 (_ bv0 32))) (= ~ldv_mutex_udev~0 (_ bv1 32)) .cse2 (not (bvsge |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res| (_ bv0 32))) (not (bvsge |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res| (_ bv0 32)))) (and (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res| (_ bv0 32)) .cse0 .cse1 (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res| (_ bv0 32)) (= ~ldv_mutex_udev~0 (_ bv2 32)) .cse2))) [2021-11-03 04:48:44,011 INFO L857 garLoopResultBuilder]: For program point L6131(line 6131) no Hoare annotation was computed. [2021-11-03 04:48:44,011 INFO L857 garLoopResultBuilder]: For program point L6065(lines 6065 6125) no Hoare annotation was computed. [2021-11-03 04:48:44,011 INFO L857 garLoopResultBuilder]: For program point L6032(line 6032) no Hoare annotation was computed. [2021-11-03 04:48:44,011 INFO L857 garLoopResultBuilder]: For program point L6132(lines 6132 6137) no Hoare annotation was computed. [2021-11-03 04:48:44,012 INFO L857 garLoopResultBuilder]: For program point L6033(lines 6033 6037) no Hoare annotation was computed. [2021-11-03 04:48:44,012 INFO L853 garLoopResultBuilder]: At program point L7024(lines 7023 7025) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:44,012 INFO L857 garLoopResultBuilder]: For program point L6166(line 6166) no Hoare annotation was computed. [2021-11-03 04:48:44,012 INFO L857 garLoopResultBuilder]: For program point L6067(lines 6067 6122) no Hoare annotation was computed. [2021-11-03 04:48:44,012 INFO L857 garLoopResultBuilder]: For program point L6100(line 6100) no Hoare annotation was computed. [2021-11-03 04:48:44,012 INFO L853 garLoopResultBuilder]: At program point L6992(lines 6991 6993) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:44,013 INFO L857 garLoopResultBuilder]: For program point L6332-2(line 6332) no Hoare annotation was computed. [2021-11-03 04:48:44,013 INFO L857 garLoopResultBuilder]: For program point L6332-1(line 6332) no Hoare annotation was computed. [2021-11-03 04:48:44,013 INFO L857 garLoopResultBuilder]: For program point L6332(line 6332) no Hoare annotation was computed. [2021-11-03 04:48:44,013 INFO L857 garLoopResultBuilder]: For program point L6167(lines 6167 6182) no Hoare annotation was computed. [2021-11-03 04:48:44,013 INFO L857 garLoopResultBuilder]: For program point L6332-5(line 6332) no Hoare annotation was computed. [2021-11-03 04:48:44,013 INFO L857 garLoopResultBuilder]: For program point L6332-4(line 6332) no Hoare annotation was computed. [2021-11-03 04:48:44,013 INFO L857 garLoopResultBuilder]: For program point L6332-3(line 6332) no Hoare annotation was computed. [2021-11-03 04:48:44,014 INFO L857 garLoopResultBuilder]: For program point L6101(lines 6101 6108) no Hoare annotation was computed. [2021-11-03 04:48:44,014 INFO L857 garLoopResultBuilder]: For program point L6068(line 6068) no Hoare annotation was computed. [2021-11-03 04:48:44,014 INFO L853 garLoopResultBuilder]: At program point L6861(lines 6853 6863) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv2 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:44,014 INFO L857 garLoopResultBuilder]: For program point L6069(lines 6069 6077) no Hoare annotation was computed. [2021-11-03 04:48:44,014 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-03 04:48:44,014 INFO L857 garLoopResultBuilder]: For program point L6202(line 6202) no Hoare annotation was computed. [2021-11-03 04:48:44,014 INFO L857 garLoopResultBuilder]: For program point L6103(lines 6103 6106) no Hoare annotation was computed. [2021-11-03 04:48:44,015 INFO L857 garLoopResultBuilder]: For program point L6169(lines 6169 6179) no Hoare annotation was computed. [2021-11-03 04:48:44,015 INFO L853 garLoopResultBuilder]: At program point L7028(lines 7027 7029) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:44,015 INFO L853 garLoopResultBuilder]: At program point L5773(lines 5768 5775) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:44,015 INFO L857 garLoopResultBuilder]: For program point L6203(lines 6203 6218) no Hoare annotation was computed. [2021-11-03 04:48:44,015 INFO L857 garLoopResultBuilder]: For program point L6170(line 6170) no Hoare annotation was computed. [2021-11-03 04:48:44,015 INFO L857 garLoopResultBuilder]: For program point L6071(lines 6071 6075) no Hoare annotation was computed. [2021-11-03 04:48:44,016 INFO L853 garLoopResultBuilder]: At program point L5840-1(lines 5837 5842) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:44,016 INFO L853 garLoopResultBuilder]: At program point L5840-2(lines 5837 5842) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:44,016 INFO L853 garLoopResultBuilder]: At program point L5840(lines 5837 5842) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:44,016 INFO L853 garLoopResultBuilder]: At program point L5840-3(lines 5837 5842) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:44,016 INFO L857 garLoopResultBuilder]: For program point L6171(lines 6171 6175) no Hoare annotation was computed. [2021-11-03 04:48:44,016 INFO L857 garLoopResultBuilder]: For program point L6039(line 6039) no Hoare annotation was computed. [2021-11-03 04:48:44,017 INFO L857 garLoopResultBuilder]: For program point L6139(line 6139) no Hoare annotation was computed. [2021-11-03 04:48:44,017 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-03 04:48:44,017 INFO L857 garLoopResultBuilder]: For program point L6205(lines 6205 6215) no Hoare annotation was computed. [2021-11-03 04:48:44,017 INFO L857 garLoopResultBuilder]: For program point L6965(lines 6964 6982) no Hoare annotation was computed. [2021-11-03 04:48:44,017 INFO L857 garLoopResultBuilder]: For program point L6206(line 6206) no Hoare annotation was computed. [2021-11-03 04:48:44,017 INFO L857 garLoopResultBuilder]: For program point L6140(lines 6140 6157) no Hoare annotation was computed. [2021-11-03 04:48:44,017 INFO L857 garLoopResultBuilder]: For program point L6207(lines 6207 6211) no Hoare annotation was computed. [2021-11-03 04:48:44,018 INFO L853 garLoopResultBuilder]: At program point L5976(lines 5970 5978) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:44,018 INFO L857 garLoopResultBuilder]: For program point L6142(lines 6142 6150) no Hoare annotation was computed. [2021-11-03 04:48:44,018 INFO L857 garLoopResultBuilder]: For program point L6142-2(lines 6140 6156) no Hoare annotation was computed. [2021-11-03 04:48:44,018 INFO L857 garLoopResultBuilder]: For program point L6110(line 6110) no Hoare annotation was computed. [2021-11-03 04:48:44,019 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-03 04:48:44,019 INFO L857 garLoopResultBuilder]: For program point L-1-1(line -1) no Hoare annotation was computed. [2021-11-03 04:48:44,019 INFO L857 garLoopResultBuilder]: For program point L-1-2(line -1) no Hoare annotation was computed. [2021-11-03 04:48:44,019 INFO L857 garLoopResultBuilder]: For program point L-1-3(line -1) no Hoare annotation was computed. [2021-11-03 04:48:44,019 INFO L857 garLoopResultBuilder]: For program point L-1-4(line -1) no Hoare annotation was computed. [2021-11-03 04:48:44,020 INFO L857 garLoopResultBuilder]: For program point L-1-5(line -1) no Hoare annotation was computed. [2021-11-03 04:48:44,020 INFO L857 garLoopResultBuilder]: For program point L-1-6(line -1) no Hoare annotation was computed. [2021-11-03 04:48:44,020 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6333) no Hoare annotation was computed. [2021-11-03 04:48:44,020 INFO L853 garLoopResultBuilder]: At program point L-1-8(line -1) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:44,020 INFO L857 garLoopResultBuilder]: For program point L-1-9(line -1) no Hoare annotation was computed. [2021-11-03 04:48:44,020 INFO L857 garLoopResultBuilder]: For program point L6969(lines 6964 6982) no Hoare annotation was computed. [2021-11-03 04:48:44,021 INFO L857 garLoopResultBuilder]: For program point L-1-10(line -1) no Hoare annotation was computed. [2021-11-03 04:48:44,021 INFO L857 garLoopResultBuilder]: For program point L6111(lines 6111 6118) no Hoare annotation was computed. [2021-11-03 04:48:44,021 INFO L857 garLoopResultBuilder]: For program point L6177(line 6177) no Hoare annotation was computed. [2021-11-03 04:48:44,021 INFO L853 garLoopResultBuilder]: At program point L5781(lines 5776 5783) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:44,021 INFO L853 garLoopResultBuilder]: At program point L5781-1(lines 5776 5783) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-03 04:48:44,021 INFO L857 garLoopResultBuilder]: For program point L6343-1(lines 6343 6346) no Hoare annotation was computed. [2021-11-03 04:48:44,022 INFO L857 garLoopResultBuilder]: For program point L6343(lines 6343 6346) no Hoare annotation was computed. [2021-11-03 04:48:44,022 INFO L857 garLoopResultBuilder]: For program point L6079(line 6079) no Hoare annotation was computed. [2021-11-03 04:48:44,022 INFO L857 garLoopResultBuilder]: For program point L6046(line 6046) no Hoare annotation was computed. [2021-11-03 04:48:44,025 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:48:44,027 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 04:48:44,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 04:48:44 BoogieIcfgContainer [2021-11-03 04:48:44,081 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 04:48:44,081 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 04:48:44,082 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 04:48:44,082 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 04:48:44,082 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:48:00" (3/4) ... [2021-11-03 04:48:44,086 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-03 04:48:44,120 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 59 nodes and edges [2021-11-03 04:48:44,122 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-11-03 04:48:44,124 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-03 04:48:44,126 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-03 04:48:44,128 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-03 04:48:44,179 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == 0bv32 && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 2bv32) && ldv_mutex_lock == 1bv32) || ((((((!~bvsge32(\result, 0bv32) && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && !~bvsge32(ret, 0bv32)) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32) && !~bvsge32(\result, 0bv32)) [2021-11-03 04:48:44,180 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!~bvsge32(\result, 0bv32) && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && !~bvsge32(ret, 0bv32)) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32) && !~bvsge32(\result, 0bv32)) && !~bvsge32(\result, 0bv32)) || (((((\result == 0bv32 && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && \result == 0bv32) && ldv_mutex_udev == 2bv32) && ldv_mutex_lock == 1bv32) [2021-11-03 04:48:44,180 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!~bvsge32(\result, 0bv32) && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && !~bvsge32(ret, 0bv32)) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 [2021-11-03 04:48:44,180 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 0bv32 && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && \result == 0bv32) && ldv_mutex_udev == 2bv32) && r == 0bv32) && ldv_mutex_lock == 1bv32 [2021-11-03 04:48:44,180 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 0bv32 && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && \result == 0bv32) && ldv_mutex_udev == 2bv32) && r == 0bv32) && ldv_mutex_lock == 1bv32 [2021-11-03 04:48:44,504 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/witness.graphml [2021-11-03 04:48:44,504 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 04:48:44,506 INFO L168 Benchmark]: Toolchain (without parser) took 49992.89 ms. Allocated memory was 56.6 MB in the beginning and 327.2 MB in the end (delta: 270.5 MB). Free memory was 26.4 MB in the beginning and 219.0 MB in the end (delta: -192.6 MB). Peak memory consumption was 230.4 MB. Max. memory is 16.1 GB. [2021-11-03 04:48:44,506 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 56.6 MB. Free memory is still 38.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:48:44,507 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1926.92 ms. Allocated memory was 56.6 MB in the beginning and 121.6 MB in the end (delta: 65.0 MB). Free memory was 26.2 MB in the beginning and 52.1 MB in the end (delta: -25.8 MB). Peak memory consumption was 51.5 MB. Max. memory is 16.1 GB. [2021-11-03 04:48:44,507 INFO L168 Benchmark]: Boogie Procedure Inliner took 128.44 ms. Allocated memory is still 121.6 MB. Free memory was 52.1 MB in the beginning and 43.4 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 04:48:44,507 INFO L168 Benchmark]: Boogie Preprocessor took 149.73 ms. Allocated memory is still 121.6 MB. Free memory was 43.4 MB in the beginning and 56.4 MB in the end (delta: -13.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 04:48:44,508 INFO L168 Benchmark]: RCFGBuilder took 3718.89 ms. Allocated memory was 121.6 MB in the beginning and 197.1 MB in the end (delta: 75.5 MB). Free memory was 56.4 MB in the beginning and 107.4 MB in the end (delta: -51.0 MB). Peak memory consumption was 79.7 MB. Max. memory is 16.1 GB. [2021-11-03 04:48:44,508 INFO L168 Benchmark]: TraceAbstraction took 43639.64 ms. Allocated memory was 197.1 MB in the beginning and 327.2 MB in the end (delta: 130.0 MB). Free memory was 106.4 MB in the beginning and 188.1 MB in the end (delta: -81.7 MB). Peak memory consumption was 47.3 MB. Max. memory is 16.1 GB. [2021-11-03 04:48:44,509 INFO L168 Benchmark]: Witness Printer took 423.14 ms. Allocated memory is still 327.2 MB. Free memory was 188.1 MB in the beginning and 219.0 MB in the end (delta: -30.9 MB). Peak memory consumption was 122.3 MB. Max. memory is 16.1 GB. [2021-11-03 04:48:44,511 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 56.6 MB. Free memory is still 38.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1926.92 ms. Allocated memory was 56.6 MB in the beginning and 121.6 MB in the end (delta: 65.0 MB). Free memory was 26.2 MB in the beginning and 52.1 MB in the end (delta: -25.8 MB). Peak memory consumption was 51.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 128.44 ms. Allocated memory is still 121.6 MB. Free memory was 52.1 MB in the beginning and 43.4 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 149.73 ms. Allocated memory is still 121.6 MB. Free memory was 43.4 MB in the beginning and 56.4 MB in the end (delta: -13.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3718.89 ms. Allocated memory was 121.6 MB in the beginning and 197.1 MB in the end (delta: 75.5 MB). Free memory was 56.4 MB in the beginning and 107.4 MB in the end (delta: -51.0 MB). Peak memory consumption was 79.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 43639.64 ms. Allocated memory was 197.1 MB in the beginning and 327.2 MB in the end (delta: 130.0 MB). Free memory was 106.4 MB in the beginning and 188.1 MB in the end (delta: -81.7 MB). Peak memory consumption was 47.3 MB. Max. memory is 16.1 GB. * Witness Printer took 423.14 ms. Allocated memory is still 327.2 MB. Free memory was 188.1 MB in the beginning and 219.0 MB in the end (delta: -30.9 MB). Peak memory consumption was 122.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 6333]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 6333]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 6333]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 6333]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 6333]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 6333]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 157 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 43.5s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2389 SDtfs, 2554 SDslu, 3244 SDs, 0 SdLazy, 89 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2149 GetRequests, 2074 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=383occurred in iteration=7, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 669 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 48 LocationsWithAnnotation, 48 PreInvPairs, 149 NumberOfFragments, 610 HoareAnnotationTreeSize, 48 FomulaSimplifications, 5047 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 48 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.0s SsaConstructionTime, 17.4s SatisfiabilityAnalysisTime, 10.1s InterpolantComputationTime, 1089 NumberOfCodeBlocks, 1089 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 2138 ConstructedInterpolants, 0 QuantifiedInterpolants, 3207 SizeOfPredicates, 55 NumberOfNonLiveVariables, 25760 ConjunctsInSsa, 101 ConjunctsInUnsatCore, 40 InterpolantComputations, 20 PerfectInterpolantSequences, 140/200 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 7008]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 7019]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 7027]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5970]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5757]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6987]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5837]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5776]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 6965]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5979]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5837]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 7015]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5757]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 6336]: Loop Invariant Derived loop invariant: ((((!~bvsge32(\result, 0bv32) && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && !~bvsge32(ret, 0bv32)) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 6853]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 2bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 6940]: Loop Invariant Derived loop invariant: ((((\result == 0bv32 && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 2bv32) && ldv_mutex_lock == 1bv32) || ((((((!~bvsge32(\result, 0bv32) && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && !~bvsge32(ret, 0bv32)) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32) && !~bvsge32(\result, 0bv32)) - InvariantResult [Line: 6984]: Loop Invariant Derived loop invariant: (((((\result == 0bv32 && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && \result == 0bv32) && ldv_mutex_udev == 2bv32) && r == 0bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7023]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 7004]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 6002]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5757]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5757]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5768]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5837]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6962]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6307]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5757]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5757]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5837]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 6291]: Loop Invariant Derived loop invariant: (((((((!~bvsge32(\result, 0bv32) && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && !~bvsge32(ret, 0bv32)) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32) && !~bvsge32(\result, 0bv32)) && !~bvsge32(\result, 0bv32)) || (((((\result == 0bv32 && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && \result == 0bv32) && ldv_mutex_udev == 2bv32) && ldv_mutex_lock == 1bv32) - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 7015]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6991]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 7012]: Loop Invariant Derived loop invariant: (((((\result == 0bv32 && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && \result == 0bv32) && ldv_mutex_udev == 2bv32) && r == 0bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5757]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5776]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5948]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 RESULT: Ultimate proved your program to be correct! [2021-11-03 04:48:44,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0d1407-2340-4bdf-88fd-21af933f0c71/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE