./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8 --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 b8fb715e20e93734f29581bef128b7f826b4b5933b157899cd0cb0d668434a9d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:38:51,430 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:38:51,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:38:51,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:38:51,492 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:38:51,493 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:38:51,495 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:38:51,497 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:38:51,500 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:38:51,501 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:38:51,502 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:38:51,504 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:38:51,504 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:38:51,506 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:38:51,507 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:38:51,509 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:38:51,510 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:38:51,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:38:51,514 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:38:51,517 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:38:51,520 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:38:51,521 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:38:51,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:38:51,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:38:51,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:38:51,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:38:51,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:38:51,531 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:38:51,531 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:38:51,533 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:38:51,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:38:51,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:38:51,536 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:38:51,537 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:38:51,538 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:38:51,539 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:38:51,540 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:38:51,540 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:38:51,541 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:38:51,542 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:38:51,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:38:51,544 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:38:51,584 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:38:51,584 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:38:51,585 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:38:51,585 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:38:51,586 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:38:51,586 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:38:51,586 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:38:51,586 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:38:51,587 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:38:51,587 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:38:51,588 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:38:51,588 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:38:51,588 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:38:51,589 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:38:51,589 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:38:51,590 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:38:51,590 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:38:51,590 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:38:51,591 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:38:51,591 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:38:51,591 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:38:51,591 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:38:51,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:38:51,592 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:38:51,592 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:38:51,592 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:38:51,592 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:38:51,592 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:38:51,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:38:51,595 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:38:51,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:38:51,595 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:38:51,596 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:38:51,596 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:38:51,596 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:38:51,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:38:51,596 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:38:51,597 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:38:51,597 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:38:51,597 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_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8fb715e20e93734f29581bef128b7f826b4b5933b157899cd0cb0d668434a9d [2021-11-07 01:38:51,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:38:51,910 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:38:51,913 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:38:51,914 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:38:51,915 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:38:51,916 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i [2021-11-07 01:38:52,009 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/data/db29b8280/24f6c17d4f404ca6a040d8de616af7de/FLAGf2d6e0872 [2021-11-07 01:38:52,588 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:38:52,589 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i [2021-11-07 01:38:52,608 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/data/db29b8280/24f6c17d4f404ca6a040d8de616af7de/FLAGf2d6e0872 [2021-11-07 01:38:52,855 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/data/db29b8280/24f6c17d4f404ca6a040d8de616af7de [2021-11-07 01:38:52,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:38:52,859 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:38:52,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:38:52,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:38:52,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:38:52,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:38:52" (1/1) ... [2021-11-07 01:38:52,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@344559e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:38:52, skipping insertion in model container [2021-11-07 01:38:52,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:38:52" (1/1) ... [2021-11-07 01:38:52,873 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:38:52,939 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:38:53,337 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_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i[33021,33034] [2021-11-07 01:38:53,434 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_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i[45234,45247] [2021-11-07 01:38:53,450 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:38:53,460 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 01:38:53,460 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5b7ebf9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:38:53, skipping insertion in model container [2021-11-07 01:38:53,461 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:38:53,461 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:38:53,463 INFO L168 Benchmark]: Toolchain (without parser) took 602.72 ms. Allocated memory is still 92.3 MB. Free memory was 54.4 MB in the beginning and 55.4 MB in the end (delta: -962.1 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:38:53,464 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 92.3 MB. Free memory was 60.8 MB in the beginning and 60.8 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:38:53,465 INFO L168 Benchmark]: CACSL2BoogieTranslator took 600.07 ms. Allocated memory is still 92.3 MB. Free memory was 54.3 MB in the beginning and 55.4 MB in the end (delta: -1.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:38:53,467 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 92.3 MB. Free memory was 60.8 MB in the beginning and 60.8 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 600.07 ms. Allocated memory is still 92.3 MB. Free memory was 54.3 MB in the beginning and 55.4 MB in the end (delta: -1.2 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: 766]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8 --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 b8fb715e20e93734f29581bef128b7f826b4b5933b157899cd0cb0d668434a9d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:38:55,734 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:38:55,738 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:38:55,798 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:38:55,799 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:38:55,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:38:55,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:38:55,809 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:38:55,812 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:38:55,820 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:38:55,821 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:38:55,823 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:38:55,823 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:38:55,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:38:55,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:38:55,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:38:55,834 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:38:55,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:38:55,845 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:38:55,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:38:55,857 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:38:55,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:38:55,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:38:55,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:38:55,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:38:55,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:38:55,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:38:55,876 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:38:55,876 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:38:55,877 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:38:55,878 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:38:55,879 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:38:55,881 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:38:55,882 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:38:55,883 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:38:55,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:38:55,885 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:38:55,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:38:55,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:38:55,887 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:38:55,888 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:38:55,893 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 01:38:55,937 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:38:55,937 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:38:55,938 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:38:55,939 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:38:55,939 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:38:55,939 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:38:55,939 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:38:55,940 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:38:55,940 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:38:55,941 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:38:55,943 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:38:55,943 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:38:55,943 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:38:55,943 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:38:55,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:38:55,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:38:55,944 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:38:55,944 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:38:55,945 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:38:55,945 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:38:55,945 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:38:55,945 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:38:55,946 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:38:55,946 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:38:55,946 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:38:55,946 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:38:55,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:38:55,947 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:38:55,947 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:38:55,947 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:38:55,948 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:38:55,948 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:38:55,948 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:38:55,948 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:38:55,949 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:38:55,949 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_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8fb715e20e93734f29581bef128b7f826b4b5933b157899cd0cb0d668434a9d [2021-11-07 01:38:56,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:38:56,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:38:56,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:38:56,396 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:38:56,396 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:38:56,397 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i [2021-11-07 01:38:56,471 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/data/e97a6f12d/a6d7694a902c4effb94acaf8a1f31816/FLAGf32ab3db0 [2021-11-07 01:38:57,199 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:38:57,200 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i [2021-11-07 01:38:57,227 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/data/e97a6f12d/a6d7694a902c4effb94acaf8a1f31816/FLAGf32ab3db0 [2021-11-07 01:38:57,425 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/data/e97a6f12d/a6d7694a902c4effb94acaf8a1f31816 [2021-11-07 01:38:57,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:38:57,436 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:38:57,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:38:57,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:38:57,444 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:38:57,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:38:57" (1/1) ... [2021-11-07 01:38:57,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18e4a1b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:38:57, skipping insertion in model container [2021-11-07 01:38:57,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:38:57" (1/1) ... [2021-11-07 01:38:57,454 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:38:57,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:38:57,933 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_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i[33021,33034] [2021-11-07 01:38:58,045 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_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i[45234,45247] [2021-11-07 01:38:58,062 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:38:58,074 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:38:58,099 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:38:58,151 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_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i[33021,33034] [2021-11-07 01:38:58,260 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_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i[45234,45247] [2021-11-07 01:38:58,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:38:58,296 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:38:58,327 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_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i[33021,33034] [2021-11-07 01:38:58,389 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_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i[45234,45247] [2021-11-07 01:38:58,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:38:58,461 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:38:58,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:38:58 WrapperNode [2021-11-07 01:38:58,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:38:58,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:38:58,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:38:58,463 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:38:58,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:38:58" (1/1) ... [2021-11-07 01:38:58,510 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:38:58" (1/1) ... [2021-11-07 01:38:58,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:38:58,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:38:58,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:38:58,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:38:58,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:38:58" (1/1) ... [2021-11-07 01:38:58,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:38:58" (1/1) ... [2021-11-07 01:38:58,616 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:38:58" (1/1) ... [2021-11-07 01:38:58,616 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:38:58" (1/1) ... [2021-11-07 01:38:58,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:38:58" (1/1) ... [2021-11-07 01:38:58,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:38:58" (1/1) ... [2021-11-07 01:38:58,775 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:38:58" (1/1) ... [2021-11-07 01:38:58,817 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:38:58,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:38:58,818 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:38:58,818 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:38:58,819 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:38:58" (1/1) ... [2021-11-07 01:38:58,826 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:38:58,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:38:58,850 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:38:58,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:38:58,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:38:58,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:38:58,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:38:58,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:38:58,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:38:58,896 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-07 01:38:58,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:38:58,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:38:58,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:38:58,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:38:58,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:38:58,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:39:05,884 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:39:05,885 INFO L299 CfgBuilder]: Removed 145 assume(true) statements. [2021-11-07 01:39:05,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:39:05 BoogieIcfgContainer [2021-11-07 01:39:05,887 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:39:05,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:39:05,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:39:05,892 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:39:05,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:38:57" (1/3) ... [2021-11-07 01:39:05,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77d50cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:39:05, skipping insertion in model container [2021-11-07 01:39:05,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:38:58" (2/3) ... [2021-11-07 01:39:05,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77d50cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:39:05, skipping insertion in model container [2021-11-07 01:39:05,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:39:05" (3/3) ... [2021-11-07 01:39:05,895 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test8-2.i [2021-11-07 01:39:05,901 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:39:05,901 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2021-11-07 01:39:05,971 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:39:05,986 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:39:05,987 INFO L340 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2021-11-07 01:39:06,018 INFO L276 IsEmpty]: Start isEmpty. Operand has 331 states, 299 states have (on average 1.7826086956521738) internal successors, (533), 330 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:39:06,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-07 01:39:06,023 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:39:06,024 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:39:06,025 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-07 01:39:06,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:39:06,035 INFO L85 PathProgramCache]: Analyzing trace with hash -109840528, now seen corresponding path program 1 times [2021-11-07 01:39:06,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:39:06,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1703055889] [2021-11-07 01:39:06,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:39:06,050 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:39:06,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:39:06,054 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:39:06,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:39:06,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:39:06,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:39:06,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:39:06,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:39:06,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:39:06,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:39:06,389 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:39:06,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1703055889] [2021-11-07 01:39:06,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1703055889] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:39:06,391 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:39:06,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:39:06,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291597703] [2021-11-07 01:39:06,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:39:06,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:39:06,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:39:06,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:39:06,416 INFO L87 Difference]: Start difference. First operand has 331 states, 299 states have (on average 1.7826086956521738) internal successors, (533), 330 states have internal predecessors, (533), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:39:06,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:39:06,464 INFO L93 Difference]: Finished difference Result 660 states and 1064 transitions. [2021-11-07 01:39:06,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:39:06,465 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2021-11-07 01:39:06,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:39:06,478 INFO L225 Difference]: With dead ends: 660 [2021-11-07 01:39:06,478 INFO L226 Difference]: Without dead ends: 298 [2021-11-07 01:39:06,482 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:39:06,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2021-11-07 01:39:06,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2021-11-07 01:39:06,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 267 states have (on average 1.4344569288389513) internal successors, (383), 297 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:39:06,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 383 transitions. [2021-11-07 01:39:06,536 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 383 transitions. Word has length 9 [2021-11-07 01:39:06,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:39:06,544 INFO L470 AbstractCegarLoop]: Abstraction has 298 states and 383 transitions. [2021-11-07 01:39:06,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:39:06,545 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 383 transitions. [2021-11-07 01:39:06,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-07 01:39:06,548 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:39:06,548 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:39:06,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:39:06,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:39:06,757 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-07 01:39:06,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:39:06,757 INFO L85 PathProgramCache]: Analyzing trace with hash 518597571, now seen corresponding path program 1 times [2021-11-07 01:39:06,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:39:06,758 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1334649118] [2021-11-07 01:39:06,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:39:06,759 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:39:06,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:39:06,760 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:39:06,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:39:06,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:39:07,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:39:07,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:39:07,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:39:07,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:39:07,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:39:07,359 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:39:07,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1334649118] [2021-11-07 01:39:07,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1334649118] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:39:07,359 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:39:07,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-07 01:39:07,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725836443] [2021-11-07 01:39:07,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:39:07,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:39:07,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:39:07,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:39:07,362 INFO L87 Difference]: Start difference. First operand 298 states and 383 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:39:07,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:39:07,553 INFO L93 Difference]: Finished difference Result 451 states and 581 transitions. [2021-11-07 01:39:07,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:39:07,556 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-07 01:39:07,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:39:07,560 INFO L225 Difference]: With dead ends: 451 [2021-11-07 01:39:07,564 INFO L226 Difference]: Without dead ends: 307 [2021-11-07 01:39:07,566 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:39:07,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2021-11-07 01:39:07,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 301. [2021-11-07 01:39:07,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 270 states have (on average 1.4) internal successors, (378), 300 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:39:07,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 378 transitions. [2021-11-07 01:39:07,620 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 378 transitions. Word has length 44 [2021-11-07 01:39:07,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:39:07,621 INFO L470 AbstractCegarLoop]: Abstraction has 301 states and 378 transitions. [2021-11-07 01:39:07,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:39:07,626 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 378 transitions. [2021-11-07 01:39:07,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-07 01:39:07,628 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:39:07,628 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:39:07,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:39:07,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:39:07,840 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-07 01:39:07,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:39:07,841 INFO L85 PathProgramCache]: Analyzing trace with hash -230237769, now seen corresponding path program 1 times [2021-11-07 01:39:07,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:39:07,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119859437] [2021-11-07 01:39:07,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:39:07,842 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:39:07,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:39:07,843 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:39:07,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:39:08,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:39:08,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:39:08,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:39:08,167 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:39:08,168 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:39:08,168 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:39:08,246 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size [2021-11-07 01:39:08,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 36 [2021-11-07 01:39:08,330 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-11-07 01:39:08,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 23 [2021-11-07 01:39:08,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:39:08,470 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:39:08,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:39:08,644 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:39:08,644 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [119859437] [2021-11-07 01:39:08,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [119859437] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:39:08,644 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:39:08,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 01:39:08,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238071297] [2021-11-07 01:39:08,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:39:08,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:39:08,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:39:08,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:39:08,646 INFO L87 Difference]: Start difference. First operand 301 states and 378 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:39:18,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:39:18,404 INFO L93 Difference]: Finished difference Result 768 states and 954 transitions. [2021-11-07 01:39:18,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:39:18,406 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-07 01:39:18,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:39:18,410 INFO L225 Difference]: With dead ends: 768 [2021-11-07 01:39:18,410 INFO L226 Difference]: Without dead ends: 620 [2021-11-07 01:39:18,411 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:39:18,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2021-11-07 01:39:18,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 303. [2021-11-07 01:39:18,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 272 states have (on average 1.3970588235294117) internal successors, (380), 302 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:39:18,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 380 transitions. [2021-11-07 01:39:18,430 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 380 transitions. Word has length 44 [2021-11-07 01:39:18,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:39:18,430 INFO L470 AbstractCegarLoop]: Abstraction has 303 states and 380 transitions. [2021-11-07 01:39:18,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:39:18,431 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 380 transitions. [2021-11-07 01:39:18,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-07 01:39:18,433 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:39:18,433 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:39:18,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:39:18,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:39:18,648 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-07 01:39:18,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:39:18,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1543983351, now seen corresponding path program 1 times [2021-11-07 01:39:18,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:39:18,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1749789694] [2021-11-07 01:39:18,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:39:18,651 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:39:18,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:39:18,652 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:39:18,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:39:18,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:39:18,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:39:18,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:39:19,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:39:19,184 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:39:19,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:39:19,387 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:39:19,387 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1749789694] [2021-11-07 01:39:19,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1749789694] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:39:19,388 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:39:19,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-07 01:39:19,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388014668] [2021-11-07 01:39:19,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:39:19,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:39:19,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:39:19,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:39:19,390 INFO L87 Difference]: Start difference. First operand 303 states and 380 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:39:19,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:39:19,537 INFO L93 Difference]: Finished difference Result 611 states and 768 transitions. [2021-11-07 01:39:19,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:39:19,538 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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 57 [2021-11-07 01:39:19,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:39:19,540 INFO L225 Difference]: With dead ends: 611 [2021-11-07 01:39:19,540 INFO L226 Difference]: Without dead ends: 312 [2021-11-07 01:39:19,541 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:39:19,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2021-11-07 01:39:19,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 306. [2021-11-07 01:39:19,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 275 states have (on average 1.3636363636363635) internal successors, (375), 305 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:39:19,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 375 transitions. [2021-11-07 01:39:19,556 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 375 transitions. Word has length 57 [2021-11-07 01:39:19,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:39:19,557 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 375 transitions. [2021-11-07 01:39:19,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:39:19,557 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 375 transitions. [2021-11-07 01:39:19,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-07 01:39:19,565 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:39:19,565 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:39:19,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:39:19,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:39:19,781 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-07 01:39:19,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:39:19,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1996694677, now seen corresponding path program 1 times [2021-11-07 01:39:19,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:39:19,782 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1903321588] [2021-11-07 01:39:19,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:39:19,783 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:39:19,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:39:19,791 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:39:19,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:39:20,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:39:20,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:39:20,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:39:20,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:39:20,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:39:21,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:39:21,016 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:39:21,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1903321588] [2021-11-07 01:39:21,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1903321588] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:39:21,017 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:39:21,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:39:21,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036511305] [2021-11-07 01:39:21,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:39:21,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:39:21,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:39:21,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:39:21,019 INFO L87 Difference]: Start difference. First operand 306 states and 375 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:39:21,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:39:21,517 INFO L93 Difference]: Finished difference Result 779 states and 950 transitions. [2021-11-07 01:39:21,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:39:21,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 57 [2021-11-07 01:39:21,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:39:21,521 INFO L225 Difference]: With dead ends: 779 [2021-11-07 01:39:21,521 INFO L226 Difference]: Without dead ends: 477 [2021-11-07 01:39:21,522 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:39:21,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2021-11-07 01:39:21,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 444. [2021-11-07 01:39:21,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 413 states have (on average 1.3559322033898304) internal successors, (560), 443 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:39:21,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 560 transitions. [2021-11-07 01:39:21,540 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 560 transitions. Word has length 57 [2021-11-07 01:39:21,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:39:21,541 INFO L470 AbstractCegarLoop]: Abstraction has 444 states and 560 transitions. [2021-11-07 01:39:21,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:39:21,541 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 560 transitions. [2021-11-07 01:39:21,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-07 01:39:21,542 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:39:21,542 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:39:21,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:39:21,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:39:21,759 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-07 01:39:21,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:39:21,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1378561412, now seen corresponding path program 1 times [2021-11-07 01:39:21,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:39:21,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [755323721] [2021-11-07 01:39:21,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:39:21,761 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:39:21,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:39:21,763 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:39:21,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:39:22,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:39:22,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:39:22,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:39:22,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:39:22,332 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:39:22,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:39:22,501 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:39:22,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [755323721] [2021-11-07 01:39:22,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [755323721] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:39:22,501 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:39:22,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:39:22,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917300743] [2021-11-07 01:39:22,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:39:22,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:39:22,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:39:22,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:39:22,508 INFO L87 Difference]: Start difference. First operand 444 states and 560 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:39:22,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:39:22,589 INFO L93 Difference]: Finished difference Result 846 states and 1077 transitions. [2021-11-07 01:39:22,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:39:22,590 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-11-07 01:39:22,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:39:22,594 INFO L225 Difference]: With dead ends: 846 [2021-11-07 01:39:22,594 INFO L226 Difference]: Without dead ends: 447 [2021-11-07 01:39:22,595 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:39:22,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2021-11-07 01:39:22,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 447. [2021-11-07 01:39:22,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 416 states have (on average 1.3533653846153846) internal successors, (563), 446 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:39:22,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 563 transitions. [2021-11-07 01:39:22,618 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 563 transitions. Word has length 64 [2021-11-07 01:39:22,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:39:22,619 INFO L470 AbstractCegarLoop]: Abstraction has 447 states and 563 transitions. [2021-11-07 01:39:22,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:39:22,619 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 563 transitions. [2021-11-07 01:39:22,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-07 01:39:22,621 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:39:22,621 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:39:22,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:39:22,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:39:22,834 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-07 01:39:22,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:39:22,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1549801264, now seen corresponding path program 1 times [2021-11-07 01:39:22,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:39:22,836 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1709974306] [2021-11-07 01:39:22,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:39:22,836 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:39:22,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:39:22,838 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:39:22,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:39:23,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:39:23,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:39:23,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:39:23,565 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:39:23,565 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:39:23,835 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:39:23,835 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:39:23,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1709974306] [2021-11-07 01:39:23,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1709974306] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:39:23,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [109905231] [2021-11-07 01:39:23,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:39:23,836 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:39:23,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:39:23,844 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:39:23,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-07 01:39:24,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:39:24,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:39:24,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:39:24,715 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:39:24,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:39:24,897 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:39:24,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [109905231] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:39:24,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502111580] [2021-11-07 01:39:24,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:39:24,897 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:39:24,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:39:24,899 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:39:24,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-07 01:39:25,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:39:25,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:39:25,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:39:25,541 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:39:25,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:39:25,684 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:39:25,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502111580] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:39:25,685 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-07 01:39:25,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 4, 4] total 10 [2021-11-07 01:39:25,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538919953] [2021-11-07 01:39:25,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:39:25,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:39:25,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:39:25,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:39:25,687 INFO L87 Difference]: Start difference. First operand 447 states and 563 transitions. Second operand has 10 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:39:26,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:39:26,044 INFO L93 Difference]: Finished difference Result 857 states and 1093 transitions. [2021-11-07 01:39:26,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:39:26,045 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 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 67 [2021-11-07 01:39:26,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:39:26,048 INFO L225 Difference]: With dead ends: 857 [2021-11-07 01:39:26,048 INFO L226 Difference]: Without dead ends: 455 [2021-11-07 01:39:26,049 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:39:26,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2021-11-07 01:39:26,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 455. [2021-11-07 01:39:26,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 424 states have (on average 1.346698113207547) internal successors, (571), 454 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:39:26,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 571 transitions. [2021-11-07 01:39:26,066 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 571 transitions. Word has length 67 [2021-11-07 01:39:26,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:39:26,066 INFO L470 AbstractCegarLoop]: Abstraction has 455 states and 571 transitions. [2021-11-07 01:39:26,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:39:26,067 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 571 transitions. [2021-11-07 01:39:26,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-07 01:39:26,067 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:39:26,068 INFO L513 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:39:26,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:39:26,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:39:26,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-07 01:39:26,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:39:26,685 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-07 01:39:26,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:39:26,685 INFO L85 PathProgramCache]: Analyzing trace with hash -2058382096, now seen corresponding path program 2 times [2021-11-07 01:39:26,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:39:26,687 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1901937168] [2021-11-07 01:39:26,687 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 01:39:26,687 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:39:26,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:39:26,689 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:39:26,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 01:39:27,821 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 01:39:27,821 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:39:27,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:39:27,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:39:28,213 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-07 01:39:28,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:39:28,674 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-07 01:39:28,674 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:39:28,674 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1901937168] [2021-11-07 01:39:28,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1901937168] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:39:28,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [448099821] [2021-11-07 01:39:28,675 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 01:39:28,675 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:39:28,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:39:28,676 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:39:28,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-11-07 01:39:41,826 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 01:39:41,826 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:39:41,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:39:41,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:39:42,107 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-07 01:39:42,108 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:39:42,281 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-07 01:39:42,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [448099821] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:39:42,281 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976082904] [2021-11-07 01:39:42,281 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 01:39:42,282 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:39:42,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:39:42,288 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:39:42,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce719dc-9a7d-4a5c-8ad5-e3c58175a462/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process