./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw --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 32bit --witnessprinter.graph.data.programhash b1639abd1442c0be189a21b610783cf9fd230aa6a3ef085b8b036961bd01ca7b ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw --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 32bit --witnessprinter.graph.data.programhash b1639abd1442c0be189a21b610783cf9fd230aa6a3ef085b8b036961bd01ca7b ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-20 05:52:23,771 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:52:23,774 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:52:23,836 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:52:23,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:52:23,842 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:52:23,844 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:52:23,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:52:23,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:52:23,860 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:52:23,861 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:52:23,863 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:52:23,863 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:52:23,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:52:23,868 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:52:23,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:52:23,879 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:52:23,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:52:23,883 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:52:23,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:52:23,892 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:52:23,893 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:52:23,897 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:52:23,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:52:23,904 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:52:23,905 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:52:23,905 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:52:23,908 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:52:23,908 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:52:23,910 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:52:23,910 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:52:23,911 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:52:23,913 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:52:23,915 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:52:23,916 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:52:23,917 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:52:23,918 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:52:23,918 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:52:23,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:52:23,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:52:23,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:52:23,921 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-20 05:52:23,971 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:52:23,971 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:52:23,973 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:52:23,973 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:52:23,973 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:52:23,974 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:52:23,974 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-20 05:52:23,974 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:52:23,980 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:52:23,981 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-20 05:52:23,982 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-20 05:52:23,982 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:52:23,983 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-20 05:52:23,983 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-20 05:52:23,983 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-20 05:52:23,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:52:23,984 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:52:23,984 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-20 05:52:23,985 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:52:23,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:52:23,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:52:23,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:52:23,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:52:23,986 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:52:23,986 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:52:23,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:52:23,986 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:52:23,987 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:52:23,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:52:23,989 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:52:23,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:52:23,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:52:23,990 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:52:23,990 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:52:23,990 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-20 05:52:23,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-20 05:52:23,991 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:52:23,991 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:52:23,991 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:52:23,991 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_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1639abd1442c0be189a21b610783cf9fd230aa6a3ef085b8b036961bd01ca7b [2021-10-20 05:52:24,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:52:24,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:52:24,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:52:24,284 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:52:24,285 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:52:24,286 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c [2021-10-20 05:52:24,367 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/data/44e584a9c/2cd7bcb8a8524304ae0f03f6a4fca75b/FLAG5a717b1a4 [2021-10-20 05:52:24,840 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:52:24,840 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c [2021-10-20 05:52:24,857 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/data/44e584a9c/2cd7bcb8a8524304ae0f03f6a4fca75b/FLAG5a717b1a4 [2021-10-20 05:52:25,198 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/data/44e584a9c/2cd7bcb8a8524304ae0f03f6a4fca75b [2021-10-20 05:52:25,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:52:25,201 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:52:25,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:52:25,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:52:25,210 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:52:25,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:52:25" (1/1) ... [2021-10-20 05:52:25,212 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f3d35fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:25, skipping insertion in model container [2021-10-20 05:52:25,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:52:25" (1/1) ... [2021-10-20 05:52:25,220 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:52:25,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:52:25,475 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_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c[2897,2910] [2021-10-20 05:52:25,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:52:25,645 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) [2021-10-20 05:52:25,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1b41cea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:25, skipping insertion in model container [2021-10-20 05:52:25,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:52:25,646 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-20 05:52:25,648 INFO L168 Benchmark]: Toolchain (without parser) took 445.27 ms. Allocated memory was 90.2 MB in the beginning and 113.2 MB in the end (delta: 23.1 MB). Free memory was 57.0 MB in the beginning and 85.7 MB in the end (delta: -28.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-20 05:52:25,649 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 90.2 MB. Free memory was 58.8 MB in the beginning and 58.8 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:52:25,650 INFO L168 Benchmark]: CACSL2BoogieTranslator took 439.81 ms. Allocated memory was 90.2 MB in the beginning and 113.2 MB in the end (delta: 23.1 MB). Free memory was 56.7 MB in the beginning and 85.7 MB in the end (delta: -29.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-20 05:52:25,652 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 90.2 MB. Free memory was 58.8 MB in the beginning and 58.8 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 439.81 ms. Allocated memory was 90.2 MB in the beginning and 113.2 MB in the end (delta: 23.1 MB). Free memory was 56.7 MB in the beginning and 85.7 MB in the end (delta: -29.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 228]: 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... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-20 05:52:27,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:52:27,914 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:52:27,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:52:27,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:52:27,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:52:27,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:52:27,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:52:27,986 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:52:27,996 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:52:27,997 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:52:27,999 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:52:28,000 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:52:28,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:52:28,004 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:52:28,007 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:52:28,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:52:28,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:52:28,015 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:52:28,017 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:52:28,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:52:28,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:52:28,028 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:52:28,030 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:52:28,036 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:52:28,037 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:52:28,037 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:52:28,039 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:52:28,040 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:52:28,041 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:52:28,041 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:52:28,042 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:52:28,044 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:52:28,045 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:52:28,046 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:52:28,047 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:52:28,048 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:52:28,048 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:52:28,049 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:52:28,050 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:52:28,051 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:52:28,052 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-20 05:52:28,101 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:52:28,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:52:28,102 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:52:28,103 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:52:28,103 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:52:28,103 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:52:28,103 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:52:28,104 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:52:28,104 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:52:28,106 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:52:28,107 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:52:28,107 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:52:28,107 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:52:28,108 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:52:28,108 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:52:28,108 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:52:28,108 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:52:28,109 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-20 05:52:28,109 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-20 05:52:28,109 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:52:28,109 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:52:28,109 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:52:28,110 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:52:28,110 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:52:28,110 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-20 05:52:28,110 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:52:28,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:52:28,111 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:52:28,111 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:52:28,111 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:52:28,112 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-20 05:52:28,112 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-20 05:52:28,112 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:52:28,112 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:52:28,113 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:52:28,113 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_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1639abd1442c0be189a21b610783cf9fd230aa6a3ef085b8b036961bd01ca7b [2021-10-20 05:52:28,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:52:28,513 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:52:28,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:52:28,518 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:52:28,519 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:52:28,520 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c [2021-10-20 05:52:28,596 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/data/f9ddef32a/8982e2ada1b548ce96fa9f1ae186b3b0/FLAGdd1f99f6d [2021-10-20 05:52:29,215 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:52:29,219 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c [2021-10-20 05:52:29,234 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/data/f9ddef32a/8982e2ada1b548ce96fa9f1ae186b3b0/FLAGdd1f99f6d [2021-10-20 05:52:29,507 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/data/f9ddef32a/8982e2ada1b548ce96fa9f1ae186b3b0 [2021-10-20 05:52:29,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:52:29,512 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:52:29,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:52:29,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:52:29,517 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:52:29,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:52:29" (1/1) ... [2021-10-20 05:52:29,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c8f207f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:29, skipping insertion in model container [2021-10-20 05:52:29,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:52:29" (1/1) ... [2021-10-20 05:52:29,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:52:29,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:52:29,732 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_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c[2897,2910] [2021-10-20 05:52:29,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:52:29,886 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-20 05:52:29,894 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:52:29,902 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_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c[2897,2910] [2021-10-20 05:52:29,954 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:52:29,959 INFO L203 MainTranslator]: Completed pre-run [2021-10-20 05:52:29,981 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_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c[2897,2910] [2021-10-20 05:52:30,062 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:52:30,100 INFO L208 MainTranslator]: Completed translation [2021-10-20 05:52:30,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:30 WrapperNode [2021-10-20 05:52:30,101 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:52:30,102 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-20 05:52:30,102 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-20 05:52:30,102 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-20 05:52:30,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:30" (1/1) ... [2021-10-20 05:52:30,146 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:30" (1/1) ... [2021-10-20 05:52:30,200 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-20 05:52:30,210 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-20 05:52:30,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-20 05:52:30,211 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-20 05:52:30,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:30" (1/1) ... [2021-10-20 05:52:30,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:30" (1/1) ... [2021-10-20 05:52:30,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:30" (1/1) ... [2021-10-20 05:52:30,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:30" (1/1) ... [2021-10-20 05:52:30,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:30" (1/1) ... [2021-10-20 05:52:30,246 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:30" (1/1) ... [2021-10-20 05:52:30,249 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:30" (1/1) ... [2021-10-20 05:52:30,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-20 05:52:30,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-20 05:52:30,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-20 05:52:30,255 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-20 05:52:30,256 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:30" (1/1) ... [2021-10-20 05:52:30,262 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:52:30,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:52:30,287 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-20 05:52:30,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-20 05:52:30,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-20 05:52:30,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-20 05:52:30,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-20 05:52:30,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-20 05:52:32,684 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-20 05:52:32,685 INFO L299 CfgBuilder]: Removed 124 assume(true) statements. [2021-10-20 05:52:32,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:52:32 BoogieIcfgContainer [2021-10-20 05:52:32,687 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-20 05:52:32,689 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-20 05:52:32,689 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-20 05:52:32,692 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-20 05:52:32,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:52:29" (1/3) ... [2021-10-20 05:52:32,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@420178a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:52:32, skipping insertion in model container [2021-10-20 05:52:32,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:30" (2/3) ... [2021-10-20 05:52:32,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@420178a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:52:32, skipping insertion in model container [2021-10-20 05:52:32,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:52:32" (3/3) ... [2021-10-20 05:52:32,695 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product43.cil.c [2021-10-20 05:52:32,700 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-20 05:52:32,701 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-20 05:52:32,748 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-20 05:52:32,754 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 [2021-10-20 05:52:32,755 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-20 05:52:32,772 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 91 states have (on average 1.5494505494505495) internal successors, (141), 94 states have internal predecessors, (141), 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) [2021-10-20 05:52:32,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-20 05:52:32,779 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:52:32,779 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:52:32,780 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:52:32,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:52:32,786 INFO L82 PathProgramCache]: Analyzing trace with hash 725412282, now seen corresponding path program 1 times [2021-10-20 05:52:32,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:52:32,800 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1037176505] [2021-10-20 05:52:32,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:52:32,802 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:52:32,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:52:32,805 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:52:32,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-20 05:52:33,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:52:33,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-20 05:52:33,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:52:33,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:52:33,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:52:33,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:52:33,279 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:52:33,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1037176505] [2021-10-20 05:52:33,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1037176505] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:52:33,280 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:52:33,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-20 05:52:33,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119320028] [2021-10-20 05:52:33,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-20 05:52:33,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:52:33,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-20 05:52:33,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-20 05:52:33,308 INFO L87 Difference]: Start difference. First operand has 95 states, 91 states have (on average 1.5494505494505495) internal successors, (141), 94 states have internal predecessors, (141), 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 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2021-10-20 05:52:33,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:52:33,375 INFO L93 Difference]: Finished difference Result 184 states and 275 transitions. [2021-10-20 05:52:33,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-20 05:52:33,376 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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 18 [2021-10-20 05:52:33,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:52:33,387 INFO L225 Difference]: With dead ends: 184 [2021-10-20 05:52:33,387 INFO L226 Difference]: Without dead ends: 91 [2021-10-20 05:52:33,390 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-20 05:52:33,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-10-20 05:52:33,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2021-10-20 05:52:33,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 88 states have (on average 1.4659090909090908) internal successors, (129), 90 states have internal predecessors, (129), 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) [2021-10-20 05:52:33,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 129 transitions. [2021-10-20 05:52:33,447 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 129 transitions. Word has length 18 [2021-10-20 05:52:33,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:52:33,448 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 129 transitions. [2021-10-20 05:52:33,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2021-10-20 05:52:33,448 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 129 transitions. [2021-10-20 05:52:33,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-20 05:52:33,450 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:52:33,450 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:52:33,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-20 05:52:33,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:52:33,656 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:52:33,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:52:33,657 INFO L82 PathProgramCache]: Analyzing trace with hash -185618471, now seen corresponding path program 1 times [2021-10-20 05:52:33,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:52:33,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [981988594] [2021-10-20 05:52:33,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:52:33,659 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:52:33,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:52:33,661 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:52:33,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-20 05:52:33,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:52:33,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 05:52:33,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:52:33,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:52:33,916 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:52:33,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:52:33,972 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:52:33,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [981988594] [2021-10-20 05:52:33,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [981988594] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:52:33,973 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:52:33,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-20 05:52:33,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766532625] [2021-10-20 05:52:33,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 05:52:33,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:52:33,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 05:52:33,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:52:33,977 INFO L87 Difference]: Start difference. First operand 91 states and 129 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2021-10-20 05:52:33,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:52:33,992 INFO L93 Difference]: Finished difference Result 91 states and 129 transitions. [2021-10-20 05:52:33,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:52:33,993 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 19 [2021-10-20 05:52:33,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:52:33,994 INFO L225 Difference]: With dead ends: 91 [2021-10-20 05:52:33,994 INFO L226 Difference]: Without dead ends: 41 [2021-10-20 05:52:33,995 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:52:33,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-10-20 05:52:33,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-10-20 05:52:34,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.45) internal successors, (58), 40 states have internal predecessors, (58), 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) [2021-10-20 05:52:34,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2021-10-20 05:52:34,001 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 19 [2021-10-20 05:52:34,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:52:34,002 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2021-10-20 05:52:34,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2021-10-20 05:52:34,002 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2021-10-20 05:52:34,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-20 05:52:34,003 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:52:34,004 INFO L512 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] [2021-10-20 05:52:34,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-20 05:52:34,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:52:34,216 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:52:34,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:52:34,217 INFO L82 PathProgramCache]: Analyzing trace with hash -2096218593, now seen corresponding path program 1 times [2021-10-20 05:52:34,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:52:34,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1363482842] [2021-10-20 05:52:34,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:52:34,218 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:52:34,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:52:34,220 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:52:34,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-20 05:52:34,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:52:34,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 05:52:34,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:52:34,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:52:34,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:52:34,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:52:34,627 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:52:34,627 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1363482842] [2021-10-20 05:52:34,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1363482842] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:52:34,629 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:52:34,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-20 05:52:34,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694645322] [2021-10-20 05:52:34,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 05:52:34,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:52:34,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 05:52:34,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:52:34,636 INFO L87 Difference]: Start difference. First operand 41 states and 58 transitions. Second operand has 4 states, 4 states have (on average 10.0) 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) [2021-10-20 05:52:34,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:52:34,687 INFO L93 Difference]: Finished difference Result 136 states and 199 transitions. [2021-10-20 05:52:34,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-20 05:52:34,687 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) 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 24 [2021-10-20 05:52:34,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:52:34,689 INFO L225 Difference]: With dead ends: 136 [2021-10-20 05:52:34,689 INFO L226 Difference]: Without dead ends: 101 [2021-10-20 05:52:34,690 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:52:34,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-10-20 05:52:34,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 62. [2021-10-20 05:52:34,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.4754098360655739) internal successors, (90), 61 states have internal predecessors, (90), 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) [2021-10-20 05:52:34,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 90 transitions. [2021-10-20 05:52:34,717 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 90 transitions. Word has length 24 [2021-10-20 05:52:34,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:52:34,717 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 90 transitions. [2021-10-20 05:52:34,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) 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) [2021-10-20 05:52:34,718 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 90 transitions. [2021-10-20 05:52:34,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-20 05:52:34,720 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:52:34,720 INFO L512 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] [2021-10-20 05:52:34,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-20 05:52:34,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:52:34,936 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:52:34,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:52:34,937 INFO L82 PathProgramCache]: Analyzing trace with hash 68887907, now seen corresponding path program 1 times [2021-10-20 05:52:34,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:52:34,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1004741012] [2021-10-20 05:52:34,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:52:34,938 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:52:34,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:52:34,940 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:52:34,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-20 05:52:35,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:52:35,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 05:52:35,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:52:35,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:52:35,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:52:35,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:52:35,304 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:52:35,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1004741012] [2021-10-20 05:52:35,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1004741012] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:52:35,305 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:52:35,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-20 05:52:35,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176308367] [2021-10-20 05:52:35,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 05:52:35,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:52:35,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 05:52:35,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:52:35,308 INFO L87 Difference]: Start difference. First operand 62 states and 90 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2021-10-20 05:52:35,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:52:35,377 INFO L93 Difference]: Finished difference Result 141 states and 207 transitions. [2021-10-20 05:52:35,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:52:35,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 25 [2021-10-20 05:52:35,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:52:35,382 INFO L225 Difference]: With dead ends: 141 [2021-10-20 05:52:35,382 INFO L226 Difference]: Without dead ends: 85 [2021-10-20 05:52:35,383 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:52:35,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-10-20 05:52:35,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 83. [2021-10-20 05:52:35,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 82 states have (on average 1.4390243902439024) internal successors, (118), 82 states have internal predecessors, (118), 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) [2021-10-20 05:52:35,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 118 transitions. [2021-10-20 05:52:35,413 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 118 transitions. Word has length 25 [2021-10-20 05:52:35,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:52:35,413 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 118 transitions. [2021-10-20 05:52:35,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2021-10-20 05:52:35,415 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 118 transitions. [2021-10-20 05:52:35,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-20 05:52:35,419 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:52:35,420 INFO L512 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] [2021-10-20 05:52:35,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-20 05:52:35,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:52:35,632 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:52:35,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:52:35,633 INFO L82 PathProgramCache]: Analyzing trace with hash -192728908, now seen corresponding path program 1 times [2021-10-20 05:52:35,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:52:35,633 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [783217511] [2021-10-20 05:52:35,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:52:35,634 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:52:35,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:52:35,635 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:52:35,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-20 05:52:35,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:52:35,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-20 05:52:35,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:52:35,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:52:35,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:52:36,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:52:36,097 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:52:36,097 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [783217511] [2021-10-20 05:52:36,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [783217511] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:52:36,097 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:52:36,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-20 05:52:36,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229757457] [2021-10-20 05:52:36,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-20 05:52:36,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:52:36,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-20 05:52:36,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-20 05:52:36,099 INFO L87 Difference]: Start difference. First operand 83 states and 118 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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) [2021-10-20 05:52:36,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:52:36,502 INFO L93 Difference]: Finished difference Result 888 states and 1304 transitions. [2021-10-20 05:52:36,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-20 05:52:36,504 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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 27 [2021-10-20 05:52:36,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:52:36,509 INFO L225 Difference]: With dead ends: 888 [2021-10-20 05:52:36,510 INFO L226 Difference]: Without dead ends: 811 [2021-10-20 05:52:36,511 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 151.9ms TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-20 05:52:36,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2021-10-20 05:52:36,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 218. [2021-10-20 05:52:36,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 217 states have (on average 1.4101382488479262) internal successors, (306), 217 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) [2021-10-20 05:52:36,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 306 transitions. [2021-10-20 05:52:36,549 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 306 transitions. Word has length 27 [2021-10-20 05:52:36,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:52:36,550 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 306 transitions. [2021-10-20 05:52:36,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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) [2021-10-20 05:52:36,550 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 306 transitions. [2021-10-20 05:52:36,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-20 05:52:36,552 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:52:36,552 INFO L512 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] [2021-10-20 05:52:36,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-20 05:52:36,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:52:36,765 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:52:36,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:52:36,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1892992650, now seen corresponding path program 1 times [2021-10-20 05:52:36,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:52:36,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1115831871] [2021-10-20 05:52:36,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:52:36,766 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:52:36,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:52:36,767 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:52:36,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-20 05:52:37,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-20 05:52:37,880 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-20 05:52:38,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-20 05:52:38,936 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-20 05:52:38,936 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-20 05:52:38,937 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:52:38,939 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:52:38,939 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:52:38,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-20 05:52:39,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:52:39,163 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-20 05:52:39,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:52:39 BoogieIcfgContainer [2021-10-20 05:52:39,292 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-20 05:52:39,293 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-20 05:52:39,293 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-20 05:52:39,293 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-20 05:52:39,293 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:52:32" (3/4) ... [2021-10-20 05:52:39,295 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-20 05:52:39,421 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/witness.graphml [2021-10-20 05:52:39,423 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-20 05:52:39,425 INFO L168 Benchmark]: Toolchain (without parser) took 9911.55 ms. Allocated memory was 65.0 MB in the beginning and 98.6 MB in the end (delta: 33.6 MB). Free memory was 41.4 MB in the beginning and 69.3 MB in the end (delta: -27.9 MB). Peak memory consumption was 47.9 MB. Max. memory is 16.1 GB. [2021-10-20 05:52:39,425 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 65.0 MB. Free memory is still 45.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:52:39,426 INFO L168 Benchmark]: CACSL2BoogieTranslator took 587.22 ms. Allocated memory is still 65.0 MB. Free memory was 41.1 MB in the beginning and 32.4 MB in the end (delta: 8.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-20 05:52:39,426 INFO L168 Benchmark]: Boogie Procedure Inliner took 107.94 ms. Allocated memory was 65.0 MB in the beginning and 81.8 MB in the end (delta: 16.8 MB). Free memory was 32.4 MB in the beginning and 63.3 MB in the end (delta: -30.8 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2021-10-20 05:52:39,427 INFO L168 Benchmark]: Boogie Preprocessor took 43.16 ms. Allocated memory is still 81.8 MB. Free memory was 63.3 MB in the beginning and 60.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:52:39,427 INFO L168 Benchmark]: RCFGBuilder took 2432.73 ms. Allocated memory is still 81.8 MB. Free memory was 60.9 MB in the beginning and 55.1 MB in the end (delta: 5.7 MB). Peak memory consumption was 29.9 MB. Max. memory is 16.1 GB. [2021-10-20 05:52:39,428 INFO L168 Benchmark]: TraceAbstraction took 6603.26 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 54.9 MB in the beginning and 35.2 MB in the end (delta: 19.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2021-10-20 05:52:39,428 INFO L168 Benchmark]: Witness Printer took 130.59 ms. Allocated memory is still 98.6 MB. Free memory was 35.2 MB in the beginning and 69.3 MB in the end (delta: -34.1 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. [2021-10-20 05:52:39,431 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 65.0 MB. Free memory is still 45.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 587.22 ms. Allocated memory is still 65.0 MB. Free memory was 41.1 MB in the beginning and 32.4 MB in the end (delta: 8.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 107.94 ms. Allocated memory was 65.0 MB in the beginning and 81.8 MB in the end (delta: 16.8 MB). Free memory was 32.4 MB in the beginning and 63.3 MB in the end (delta: -30.8 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.16 ms. Allocated memory is still 81.8 MB. Free memory was 63.3 MB in the beginning and 60.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2432.73 ms. Allocated memory is still 81.8 MB. Free memory was 60.9 MB in the beginning and 55.1 MB in the end (delta: 5.7 MB). Peak memory consumption was 29.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6603.26 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 54.9 MB in the beginning and 35.2 MB in the end (delta: 19.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. * Witness Printer took 130.59 ms. Allocated memory is still 98.6 MB. Free memory was 35.2 MB in the beginning and 69.3 MB in the end (delta: -34.1 MB). Peak memory consumption was 6.9 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 158]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L369] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L607] int pumpRunning = 0; [L608] int systemActive = 1; [L859] int waterLevel = 1; [L860] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L592] int retValue_acc ; [L595] retValue_acc = 1 [L596] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L793] int splverifierCounter ; [L794] int tmp ; [L795] int tmp___0 ; [L796] int tmp___1 ; [L797] int tmp___2 ; [L800] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L802] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L804] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L810] tmp = __VERIFIER_nondet_int() [L812] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L877] COND TRUE waterLevel < 2 [L878] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L820] tmp___0 = __VERIFIER_nondet_int() [L822] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L830] tmp___2 = __VERIFIER_nondet_int() [L832] COND FALSE !(\read(tmp___2)) [L836] tmp___1 = __VERIFIER_nondet_int() [L838] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L780] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L787] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L614] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L621] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L167] int tmp ; [L168] int tmp___0 ; [L169] int tmp___1 ; [L898] int retValue_acc ; [L901] retValue_acc = methaneLevelCritical [L902] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L173] tmp = isMethaneLevelCritical() [L175] COND FALSE !(\read(tmp)) [L930] int retValue_acc ; [L933] retValue_acc = waterLevel [L934] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L179] tmp___0 = getWaterLevel() [L181] COND TRUE tmp___0 == 2 [L713] int retValue_acc ; [L716] retValue_acc = pumpRunning [L717] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L183] tmp___1 = isPumpRunning() [L185] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L158] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - UnprovableResult [Line: 158]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 158]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 95 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6414.8ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 19.9ms, AutomataDifference: 662.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 396 SDtfs, 789 SDslu, 823 SDs, 0 SdLazy, 141 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 190.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 225 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 174.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=218occurred in iteration=5, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 141.5ms AutomataMinimizationTime, 5 MinimizatonAttempts, 634 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 124.6ms SsaConstructionTime, 1543.6ms SatisfiabilityAnalysisTime, 1041.5ms InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 216 ConstructedInterpolants, 0 QuantifiedInterpolants, 422 SizeOfPredicates, 4 NumberOfNonLiveVariables, 994 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be incorrect! [2021-10-20 05:52:39,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6fcdf4d-69b8-4ddf-93da-9b05783eb02d/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...