./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/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_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/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 64bit --witnessprinter.graph.data.programhash 03b17f77ffc9b60dd6edfa1d1cf71f248568a9cd6bbbccab8c3e61d5773c4168 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:56:51,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:56:51,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:56:51,872 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:56:51,873 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:56:51,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:56:51,881 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:56:51,886 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:56:51,888 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:56:51,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:56:51,891 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:56:51,893 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:56:51,894 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:56:51,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:56:51,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:56:51,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:56:51,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:56:51,921 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:56:51,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:56:51,928 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:56:51,933 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:56:51,935 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:56:51,939 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:56:51,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:56:51,950 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:56:51,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:56:51,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:56:51,954 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:56:51,955 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:56:51,957 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:56:51,958 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:56:51,959 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:56:51,962 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:56:51,962 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:56:51,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:56:51,964 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:56:51,965 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:56:51,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:56:51,966 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:56:51,967 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:56:51,968 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:56:51,969 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:56:52,002 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:56:52,002 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:56:52,003 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:56:52,004 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:56:52,004 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:56:52,004 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:56:52,004 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:56:52,005 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:56:52,005 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:56:52,005 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:56:52,005 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:56:52,006 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:56:52,006 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:56:52,006 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:56:52,007 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:56:52,007 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:56:52,008 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:56:52,010 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:56:52,010 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:56:52,011 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:56:52,011 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:56:52,011 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:56:52,011 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:56:52,012 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:56:52,012 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:56:52,012 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:56:52,013 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:56:52,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:56:52,013 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:56:52,014 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:56:52,014 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:56:52,014 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:56:52,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:56:52,015 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:56:52,015 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:56:52,015 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:56:52,015 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_8aae555e-957b-494f-8563-1ebeca547a38/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03b17f77ffc9b60dd6edfa1d1cf71f248568a9cd6bbbccab8c3e61d5773c4168 [2021-11-07 01:56:52,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:56:52,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:56:52,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:56:52,377 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:56:52,378 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:56:52,379 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i [2021-11-07 01:56:52,481 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/data/ee1a984ed/5730cc47c3584da6995fe4f79cffe7be/FLAG5b3293d78 [2021-11-07 01:56:53,517 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:56:53,521 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i [2021-11-07 01:56:53,584 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/data/ee1a984ed/5730cc47c3584da6995fe4f79cffe7be/FLAG5b3293d78 [2021-11-07 01:56:53,912 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/data/ee1a984ed/5730cc47c3584da6995fe4f79cffe7be [2021-11-07 01:56:53,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:56:53,918 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:56:53,922 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:56:53,922 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:56:53,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:56:53,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:56:53" (1/1) ... [2021-11-07 01:56:53,930 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a804398 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:53, skipping insertion in model container [2021-11-07 01:56:53,931 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:56:53" (1/1) ... [2021-11-07 01:56:53,941 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:56:54,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:56:54,513 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_8aae555e-957b-494f-8563-1ebeca547a38/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i[4492,4505] [2021-11-07 01:56:54,525 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_8aae555e-957b-494f-8563-1ebeca547a38/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i[4552,4565] [2021-11-07 01:56:54,560 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:56:54,568 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:56:55,786 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:56:55,791 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:56:55,792 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:56:55,793 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:56:55,794 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:56:55,821 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:56:55,822 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:56:55,832 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:56:55,833 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:56:55,835 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:56:55,839 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:56:55,840 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:56:55,841 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:56:56,336 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:56:56,337 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:56:56,339 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:56:56,340 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:56:56,341 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:56:56,342 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:56:56,343 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:56:56,344 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:56:56,345 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:56:56,345 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:56:56,545 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:56:56,933 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:56:56,934 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:56:56,956 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:56:56,957 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:56:56,963 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:56:56,964 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:56:56,978 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:56:56,980 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:56:56,980 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:56:56,981 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:56:56,981 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:56:56,982 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:56:56,982 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:56:57,018 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:56:57,052 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 01:56:57,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2577c02f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:57, skipping insertion in model container [2021-11-07 01:56:57,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:56:57,053 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:56:57,055 INFO L168 Benchmark]: Toolchain (without parser) took 3136.45 ms. Allocated memory was 100.7 MB in the beginning and 146.8 MB in the end (delta: 46.1 MB). Free memory was 75.8 MB in the beginning and 49.3 MB in the end (delta: 26.5 MB). Peak memory consumption was 72.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:56:57,056 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 100.7 MB. Free memory was 70.9 MB in the beginning and 70.9 MB in the end (delta: 25.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:56:57,058 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3131.08 ms. Allocated memory was 100.7 MB in the beginning and 146.8 MB in the end (delta: 46.1 MB). Free memory was 75.4 MB in the beginning and 49.3 MB in the end (delta: 26.2 MB). Peak memory consumption was 72.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:56:57,060 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 100.7 MB. Free memory was 70.9 MB in the beginning and 70.9 MB in the end (delta: 25.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3131.08 ms. Allocated memory was 100.7 MB in the beginning and 146.8 MB in the end (delta: 46.1 MB). Free memory was 75.4 MB in the beginning and 49.3 MB in the end (delta: 26.2 MB). Peak memory consumption was 72.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7051]: 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_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/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_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/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 64bit --witnessprinter.graph.data.programhash 03b17f77ffc9b60dd6edfa1d1cf71f248568a9cd6bbbccab8c3e61d5773c4168 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:56:59,699 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:56:59,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:56:59,765 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:56:59,766 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:56:59,772 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:56:59,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:56:59,780 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:56:59,784 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:56:59,794 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:56:59,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:56:59,798 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:56:59,799 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:56:59,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:56:59,806 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:56:59,807 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:56:59,809 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:56:59,810 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:56:59,812 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:56:59,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:56:59,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:56:59,819 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:56:59,821 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:56:59,822 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:56:59,827 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:56:59,827 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:56:59,828 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:56:59,829 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:56:59,830 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:56:59,831 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:56:59,832 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:56:59,833 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:56:59,834 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:56:59,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:56:59,837 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:56:59,837 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:56:59,853 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:56:59,854 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:56:59,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:56:59,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:56:59,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:56:59,858 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:56:59,889 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:56:59,889 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:56:59,890 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:56:59,891 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:56:59,891 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:56:59,891 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:56:59,891 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:56:59,892 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:56:59,892 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:56:59,893 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:56:59,893 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:56:59,893 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:56:59,894 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:56:59,894 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:56:59,894 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:56:59,894 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:56:59,895 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:56:59,895 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:56:59,895 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:56:59,895 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:56:59,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:56:59,896 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:56:59,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:56:59,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:56:59,897 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:56:59,897 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:56:59,897 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:56:59,897 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:56:59,897 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:56:59,898 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:56:59,898 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:56:59,898 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:56:59,898 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_8aae555e-957b-494f-8563-1ebeca547a38/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03b17f77ffc9b60dd6edfa1d1cf71f248568a9cd6bbbccab8c3e61d5773c4168 [2021-11-07 01:57:00,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:57:00,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:57:00,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:57:00,424 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:57:00,431 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:57:00,432 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i [2021-11-07 01:57:00,549 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/data/69b62efa1/ad4f426cdc0c45fa9ab1c95aa79d7876/FLAGe759581b2 [2021-11-07 01:57:01,844 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:57:01,845 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i [2021-11-07 01:57:01,904 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/data/69b62efa1/ad4f426cdc0c45fa9ab1c95aa79d7876/FLAGe759581b2 [2021-11-07 01:57:02,079 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/data/69b62efa1/ad4f426cdc0c45fa9ab1c95aa79d7876 [2021-11-07 01:57:02,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:57:02,090 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:57:02,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:57:02,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:57:02,097 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:57:02,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:57:02" (1/1) ... [2021-11-07 01:57:02,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38d1fa3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:02, skipping insertion in model container [2021-11-07 01:57:02,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:57:02" (1/1) ... [2021-11-07 01:57:02,110 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:57:02,318 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:57:02,727 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_8aae555e-957b-494f-8563-1ebeca547a38/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i[4492,4505] [2021-11-07 01:57:02,739 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_8aae555e-957b-494f-8563-1ebeca547a38/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i[4552,4565] [2021-11-07 01:57:02,784 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:57:02,802 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:57:04,243 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:04,244 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:04,248 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:04,249 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:04,251 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:04,271 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:04,272 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:04,274 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:04,275 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:04,277 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:04,279 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:04,280 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:04,280 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:05,009 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:57:05,011 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:57:05,013 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:57:05,015 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:57:05,017 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:57:05,018 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:57:05,019 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:57:05,021 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:57:05,022 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:57:05,023 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:57:05,259 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:57:05,704 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:05,712 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:05,734 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:05,736 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:05,741 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:05,742 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:05,757 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:05,758 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:05,759 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:05,759 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:05,759 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:05,760 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:05,760 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:05,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:57:05,840 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:57:05,927 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:57:05,931 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_8aae555e-957b-494f-8563-1ebeca547a38/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i[4492,4505] [2021-11-07 01:57:05,931 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_8aae555e-957b-494f-8563-1ebeca547a38/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i[4552,4565] [2021-11-07 01:57:05,933 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:57:05,933 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:57:05,997 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:05,998 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:05,998 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:05,999 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:05,999 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,006 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,006 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,007 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,008 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,009 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,010 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,010 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,010 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,043 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:57:06,043 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:57:06,044 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:57:06,045 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:57:06,046 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:57:06,046 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:57:06,047 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:57:06,047 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:57:06,048 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:57:06,048 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:57:06,070 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:57:06,203 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,203 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,211 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,212 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,215 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,215 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,224 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,224 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,225 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,226 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,226 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,226 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,227 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,251 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:57:06,271 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:57:06,285 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_8aae555e-957b-494f-8563-1ebeca547a38/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i[4492,4505] [2021-11-07 01:57:06,285 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_8aae555e-957b-494f-8563-1ebeca547a38/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i[4552,4565] [2021-11-07 01:57:06,287 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:57:06,288 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:57:06,320 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,321 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,321 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,322 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,322 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,329 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,329 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,330 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,331 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,332 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,332 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,333 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,333 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,403 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:57:06,404 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:57:06,404 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:57:06,405 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:57:06,406 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:57:06,407 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:57:06,407 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:57:06,408 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:57:06,408 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:57:06,409 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:57:06,431 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:57:06,545 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,546 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,556 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,557 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,560 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,561 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,573 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,573 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,574 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,574 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,575 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,575 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,576 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:06,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:57:06,981 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:57:06,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:06 WrapperNode [2021-11-07 01:57:06,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:57:06,983 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:57:06,983 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:57:06,983 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:57:06,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:06" (1/1) ... [2021-11-07 01:57:07,168 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:06" (1/1) ... [2021-11-07 01:57:07,326 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:57:07,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:57:07,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:57:07,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:57:07,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:06" (1/1) ... [2021-11-07 01:57:07,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:06" (1/1) ... [2021-11-07 01:57:07,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:06" (1/1) ... [2021-11-07 01:57:07,420 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:06" (1/1) ... [2021-11-07 01:57:07,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:06" (1/1) ... [2021-11-07 01:57:07,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:06" (1/1) ... [2021-11-07 01:57:07,531 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:06" (1/1) ... [2021-11-07 01:57:07,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:57:07,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:57:07,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:57:07,570 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:57:07,574 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:06" (1/1) ... [2021-11-07 01:57:07,583 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:57:07,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:57:07,614 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:57:07,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:57:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-07 01:57:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:57:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:57:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:57:07,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:57:07,694 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-07 01:57:07,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:57:07,694 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-07 01:57:07,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:57:07,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:57:07,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:57:07,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:57:07,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:57:07,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:57:07,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:57:07,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:57:07,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:57:07,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:57:07,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:57:25,844 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:57:25,860 INFO L299 CfgBuilder]: Removed 150 assume(true) statements. [2021-11-07 01:57:25,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:57:25 BoogieIcfgContainer [2021-11-07 01:57:25,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:57:25,865 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:57:25,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:57:25,869 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:57:25,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:57:02" (1/3) ... [2021-11-07 01:57:25,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@84420c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:57:25, skipping insertion in model container [2021-11-07 01:57:25,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:06" (2/3) ... [2021-11-07 01:57:25,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@84420c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:57:25, skipping insertion in model container [2021-11-07 01:57:25,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:57:25" (3/3) ... [2021-11-07 01:57:25,872 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_done_harness.i [2021-11-07 01:57:25,878 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:57:25,892 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-11-07 01:57:25,951 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:57:25,965 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 01:57:25,966 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-07 01:57:25,997 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 197 states have (on average 1.4720812182741116) internal successors, (290), 205 states have internal predecessors, (290), 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 01:57:26,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-07 01:57:26,010 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:57:26,011 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] [2021-11-07 01:57:26,012 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:57:26,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:57:26,018 INFO L85 PathProgramCache]: Analyzing trace with hash -11255452, now seen corresponding path program 1 times [2021-11-07 01:57:26,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:57:26,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [113057383] [2021-11-07 01:57:26,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:57:26,047 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:57:26,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:57:26,051 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:57:26,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:57:31,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:57:31,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 1676 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:57:31,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:57:31,645 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 01:57:31,646 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:57:31,919 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 01:57:31,920 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:57:31,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [113057383] [2021-11-07 01:57:31,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [113057383] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:57:31,921 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:57:31,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:57:31,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026631134] [2021-11-07 01:57:31,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:57:31,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:57:31,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:57:31,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:57:31,950 INFO L87 Difference]: Start difference. First operand has 206 states, 197 states have (on average 1.4720812182741116) internal successors, (290), 205 states have internal predecessors, (290), 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 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:57:32,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:57:32,012 INFO L93 Difference]: Finished difference Result 408 states and 575 transitions. [2021-11-07 01:57:32,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:57:32,014 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-07 01:57:32,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:57:32,036 INFO L225 Difference]: With dead ends: 408 [2021-11-07 01:57:32,037 INFO L226 Difference]: Without dead ends: 200 [2021-11-07 01:57:32,046 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 114 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 01:57:32,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-11-07 01:57:32,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2021-11-07 01:57:32,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 192 states have (on average 1.3802083333333333) internal successors, (265), 199 states have internal predecessors, (265), 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 01:57:32,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 265 transitions. [2021-11-07 01:57:32,141 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 265 transitions. Word has length 58 [2021-11-07 01:57:32,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:57:32,142 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 265 transitions. [2021-11-07 01:57:32,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:57:32,142 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 265 transitions. [2021-11-07 01:57:32,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-07 01:57:32,150 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:57:32,150 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] [2021-11-07 01:57:32,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:57:32,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:57:32,365 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:57:32,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:57:32,366 INFO L85 PathProgramCache]: Analyzing trace with hash 502328866, now seen corresponding path program 1 times [2021-11-07 01:57:32,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:57:32,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [622170805] [2021-11-07 01:57:32,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:57:32,370 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:57:32,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:57:32,371 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:57:32,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:57:36,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:57:37,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 1676 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:57:37,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:57:37,508 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 01:57:37,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:57:37,865 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 01:57:37,865 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:57:37,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [622170805] [2021-11-07 01:57:37,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [622170805] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:57:37,865 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:57:37,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:57:37,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000256397] [2021-11-07 01:57:37,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:57:37,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:57:37,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:57:37,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:57:37,869 INFO L87 Difference]: Start difference. First operand 200 states and 265 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:57:38,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:57:38,373 INFO L93 Difference]: Finished difference Result 562 states and 751 transitions. [2021-11-07 01:57:38,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:57:38,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-07 01:57:38,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:57:38,384 INFO L225 Difference]: With dead ends: 562 [2021-11-07 01:57:38,385 INFO L226 Difference]: Without dead ends: 384 [2021-11-07 01:57:38,390 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:57:38,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2021-11-07 01:57:38,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 206. [2021-11-07 01:57:38,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 198 states have (on average 1.3686868686868687) internal successors, (271), 205 states have internal predecessors, (271), 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 01:57:38,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 271 transitions. [2021-11-07 01:57:38,430 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 271 transitions. Word has length 58 [2021-11-07 01:57:38,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:57:38,432 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 271 transitions. [2021-11-07 01:57:38,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:57:38,433 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 271 transitions. [2021-11-07 01:57:38,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-07 01:57:38,437 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:57:38,437 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] [2021-11-07 01:57:38,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:57:38,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:57:38,656 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:57:38,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:57:38,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1974054530, now seen corresponding path program 1 times [2021-11-07 01:57:38,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:57:38,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1940994903] [2021-11-07 01:57:38,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:57:38,660 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:57:38,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:57:38,662 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:57:38,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:57:42,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:57:42,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:57:42,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:57:43,205 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 01:57:43,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:57:43,541 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 01:57:43,541 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:57:43,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1940994903] [2021-11-07 01:57:43,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1940994903] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:57:43,542 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:57:43,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-07 01:57:43,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079322649] [2021-11-07 01:57:43,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:57:43,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:57:43,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:57:43,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:57:43,544 INFO L87 Difference]: Start difference. First operand 206 states and 271 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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 01:57:43,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:57:43,805 INFO L93 Difference]: Finished difference Result 389 states and 515 transitions. [2021-11-07 01:57:43,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:57:43,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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 62 [2021-11-07 01:57:43,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:57:43,808 INFO L225 Difference]: With dead ends: 389 [2021-11-07 01:57:43,808 INFO L226 Difference]: Without dead ends: 206 [2021-11-07 01:57:43,809 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 119 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 01:57:43,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-11-07 01:57:43,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 200. [2021-11-07 01:57:43,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 192 states have (on average 1.359375) internal successors, (261), 199 states have internal predecessors, (261), 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 01:57:43,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 261 transitions. [2021-11-07 01:57:43,828 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 261 transitions. Word has length 62 [2021-11-07 01:57:43,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:57:43,829 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 261 transitions. [2021-11-07 01:57:43,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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 01:57:43,830 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 261 transitions. [2021-11-07 01:57:43,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-07 01:57:43,836 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:57:43,836 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, 1, 1, 1, 1] [2021-11-07 01:57:43,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:57:44,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:57:44,052 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:57:44,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:57:44,053 INFO L85 PathProgramCache]: Analyzing trace with hash 671141491, now seen corresponding path program 1 times [2021-11-07 01:57:44,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:57:44,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1152133642] [2021-11-07 01:57:44,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:57:44,057 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:57:44,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:57:44,058 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:57:44,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:57:48,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:57:49,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 1748 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 01:57:49,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:57:49,693 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 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-07 01:57:50,022 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 01:57:50,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:57:50,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-07 01:57:50,738 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 01:57:50,738 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:57:50,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1152133642] [2021-11-07 01:57:50,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1152133642] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:57:50,739 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:57:50,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-11-07 01:57:50,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905414860] [2021-11-07 01:57:50,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:57:50,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:57:50,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:57:50,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:57:50,741 INFO L87 Difference]: Start difference. First operand 200 states and 261 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 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 01:57:59,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:57:59,439 INFO L93 Difference]: Finished difference Result 571 states and 745 transitions. [2021-11-07 01:57:59,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 01:57:59,441 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-11-07 01:57:59,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:57:59,444 INFO L225 Difference]: With dead ends: 571 [2021-11-07 01:57:59,444 INFO L226 Difference]: Without dead ends: 406 [2021-11-07 01:57:59,445 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-11-07 01:57:59,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2021-11-07 01:57:59,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 305. [2021-11-07 01:57:59,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 297 states have (on average 1.3905723905723906) internal successors, (413), 304 states have internal predecessors, (413), 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 01:57:59,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 413 transitions. [2021-11-07 01:57:59,499 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 413 transitions. Word has length 68 [2021-11-07 01:57:59,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:57:59,500 INFO L470 AbstractCegarLoop]: Abstraction has 305 states and 413 transitions. [2021-11-07 01:57:59,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 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 01:57:59,500 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 413 transitions. [2021-11-07 01:57:59,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-07 01:57:59,502 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:57:59,502 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, 1, 1, 1, 1] [2021-11-07 01:57:59,559 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-07 01:57:59,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:57:59,716 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:57:59,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:57:59,718 INFO L85 PathProgramCache]: Analyzing trace with hash -226251787, now seen corresponding path program 1 times [2021-11-07 01:57:59,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:57:59,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [87565079] [2021-11-07 01:57:59,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:57:59,722 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:57:59,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:57:59,723 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:57:59,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:58:04,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:58:04,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 1745 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:58:04,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:58:05,210 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 01:58:05,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:58:05,607 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 01:58:05,607 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:58:05,608 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [87565079] [2021-11-07 01:58:05,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [87565079] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:58:05,609 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:58:05,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:58:05,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854839796] [2021-11-07 01:58:05,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:58:05,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:58:05,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:58:05,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:58:05,611 INFO L87 Difference]: Start difference. First operand 305 states and 413 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 01:58:05,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:58:05,848 INFO L93 Difference]: Finished difference Result 576 states and 788 transitions. [2021-11-07 01:58:05,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:58:05,851 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-11-07 01:58:05,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:58:05,853 INFO L225 Difference]: With dead ends: 576 [2021-11-07 01:58:05,853 INFO L226 Difference]: Without dead ends: 303 [2021-11-07 01:58:05,854 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:58:05,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2021-11-07 01:58:05,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 303. [2021-11-07 01:58:05,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 295 states have (on average 1.3796610169491526) internal successors, (407), 302 states have internal predecessors, (407), 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 01:58:05,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 407 transitions. [2021-11-07 01:58:05,881 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 407 transitions. Word has length 68 [2021-11-07 01:58:05,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:58:05,882 INFO L470 AbstractCegarLoop]: Abstraction has 303 states and 407 transitions. [2021-11-07 01:58:05,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 01:58:05,883 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 407 transitions. [2021-11-07 01:58:05,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-07 01:58:05,884 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:58:05,884 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, 1, 1, 1, 1, 1, 1] [2021-11-07 01:58:05,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:58:06,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:58:06,100 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:58:06,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:58:06,101 INFO L85 PathProgramCache]: Analyzing trace with hash 870506126, now seen corresponding path program 1 times [2021-11-07 01:58:06,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:58:06,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [501646235] [2021-11-07 01:58:06,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:58:06,104 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:58:06,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:58:06,104 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:58:06,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:58:10,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:58:11,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 1759 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 01:58:11,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:58:11,679 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 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-07 01:58:11,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2021-11-07 01:58:12,013 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 01:58:12,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:58:12,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-07 01:58:12,678 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 01:58:12,679 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:58:12,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [501646235] [2021-11-07 01:58:12,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [501646235] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:58:12,680 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:58:12,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-07 01:58:12,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336623075] [2021-11-07 01:58:12,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 01:58:12,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:58:12,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 01:58:12,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:58:12,682 INFO L87 Difference]: Start difference. First operand 303 states and 407 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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 01:58:21,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:58:21,358 INFO L93 Difference]: Finished difference Result 907 states and 1199 transitions. [2021-11-07 01:58:21,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:58:21,359 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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 70 [2021-11-07 01:58:21,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:58:21,364 INFO L225 Difference]: With dead ends: 907 [2021-11-07 01:58:21,364 INFO L226 Difference]: Without dead ends: 638 [2021-11-07 01:58:21,365 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:58:21,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2021-11-07 01:58:21,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 304. [2021-11-07 01:58:21,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 296 states have (on average 1.375) internal successors, (407), 303 states have internal predecessors, (407), 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 01:58:21,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 407 transitions. [2021-11-07 01:58:21,389 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 407 transitions. Word has length 70 [2021-11-07 01:58:21,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:58:21,389 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 407 transitions. [2021-11-07 01:58:21,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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 01:58:21,390 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 407 transitions. [2021-11-07 01:58:21,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-07 01:58:21,391 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:58:21,391 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:58:21,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:58:21,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:58:21,596 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:58:21,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:58:21,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1935032955, now seen corresponding path program 1 times [2021-11-07 01:58:21,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:58:21,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1047645106] [2021-11-07 01:58:21,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:58:21,600 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:58:21,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:58:21,601 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:58:21,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:58:26,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:58:26,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 1772 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:58:26,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:58:27,119 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 01:58:27,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:58:27,350 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 01:58:27,350 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:58:27,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1047645106] [2021-11-07 01:58:27,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1047645106] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:58:27,350 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:58:27,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:58:27,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785446873] [2021-11-07 01:58:27,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:58:27,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:58:27,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:58:27,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:58:27,352 INFO L87 Difference]: Start difference. First operand 304 states and 407 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 01:58:27,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:58:27,981 INFO L93 Difference]: Finished difference Result 545 states and 736 transitions. [2021-11-07 01:58:27,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:58:27,986 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 71 [2021-11-07 01:58:27,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:58:27,989 INFO L225 Difference]: With dead ends: 545 [2021-11-07 01:58:27,989 INFO L226 Difference]: Without dead ends: 304 [2021-11-07 01:58:27,990 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:58:27,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-11-07 01:58:28,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2021-11-07 01:58:28,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 296 states have (on average 1.3581081081081081) internal successors, (402), 303 states have internal predecessors, (402), 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 01:58:28,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 402 transitions. [2021-11-07 01:58:28,012 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 402 transitions. Word has length 71 [2021-11-07 01:58:28,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:58:28,013 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 402 transitions. [2021-11-07 01:58:28,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 01:58:28,013 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 402 transitions. [2021-11-07 01:58:28,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-07 01:58:28,020 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:58:28,020 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:58:28,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:58:28,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:58:28,231 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:58:28,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:58:28,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1757739825, now seen corresponding path program 1 times [2021-11-07 01:58:28,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:58:28,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [295541917] [2021-11-07 01:58:28,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:58:28,235 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:58:28,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:58:28,236 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:58:28,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:58:33,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:58:33,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 1778 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:58:33,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:58:33,753 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 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-07 01:58:33,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2021-11-07 01:58:33,965 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 01:58:33,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:58:34,375 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 01:58:34,376 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:58:34,376 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [295541917] [2021-11-07 01:58:34,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [295541917] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:58:34,376 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:58:34,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-07 01:58:34,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700950651] [2021-11-07 01:58:34,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:58:34,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:58:34,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:58:34,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:58:34,378 INFO L87 Difference]: Start difference. First operand 304 states and 402 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 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 01:58:42,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:58:42,556 INFO L93 Difference]: Finished difference Result 569 states and 744 transitions. [2021-11-07 01:58:42,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:58:42,559 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 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 73 [2021-11-07 01:58:42,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:58:42,561 INFO L225 Difference]: With dead ends: 569 [2021-11-07 01:58:42,561 INFO L226 Difference]: Without dead ends: 328 [2021-11-07 01:58:42,561 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:58:42,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2021-11-07 01:58:42,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 304. [2021-11-07 01:58:42,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 296 states have (on average 1.347972972972973) internal successors, (399), 303 states have internal predecessors, (399), 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 01:58:42,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 399 transitions. [2021-11-07 01:58:42,582 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 399 transitions. Word has length 73 [2021-11-07 01:58:42,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:58:42,582 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 399 transitions. [2021-11-07 01:58:42,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 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 01:58:42,583 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 399 transitions. [2021-11-07 01:58:42,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 01:58:42,584 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:58:42,584 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:58:42,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:58:42,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:58:42,788 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:58:42,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:58:42,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1216823460, now seen corresponding path program 1 times [2021-11-07 01:58:42,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:58:42,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [983429689] [2021-11-07 01:58:42,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:58:42,792 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:58:42,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:58:42,793 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:58:42,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:58:47,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:58:47,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 1793 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:58:47,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:58:48,160 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 01:58:48,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:58:48,378 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 01:58:48,378 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:58:48,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [983429689] [2021-11-07 01:58:48,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [983429689] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:58:48,378 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:58:48,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:58:48,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959085073] [2021-11-07 01:58:48,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:58:48,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:58:48,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:58:48,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:58:48,380 INFO L87 Difference]: Start difference. First operand 304 states and 399 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 01:58:48,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:58:48,690 INFO L93 Difference]: Finished difference Result 598 states and 780 transitions. [2021-11-07 01:58:48,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:58:48,691 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 79 [2021-11-07 01:58:48,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:58:48,694 INFO L225 Difference]: With dead ends: 598 [2021-11-07 01:58:48,694 INFO L226 Difference]: Without dead ends: 350 [2021-11-07 01:58:48,695 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:58:48,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2021-11-07 01:58:48,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 301. [2021-11-07 01:58:48,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 293 states have (on average 1.31740614334471) internal successors, (386), 300 states have internal predecessors, (386), 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 01:58:48,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 386 transitions. [2021-11-07 01:58:48,753 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 386 transitions. Word has length 79 [2021-11-07 01:58:48,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:58:48,754 INFO L470 AbstractCegarLoop]: Abstraction has 301 states and 386 transitions. [2021-11-07 01:58:48,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 01:58:48,754 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 386 transitions. [2021-11-07 01:58:48,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-07 01:58:48,755 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:58:48,755 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, 1, 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 01:58:48,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 01:58:48,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:58:48,972 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:58:48,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:58:48,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1229639887, now seen corresponding path program 1 times [2021-11-07 01:58:48,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:58:48,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1688729896] [2021-11-07 01:58:48,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:58:48,980 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:58:48,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:58:48,982 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:58:48,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 01:58:54,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:58:54,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 1828 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:58:54,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:58:54,618 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 01:58:54,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:58:54,904 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 01:58:54,904 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:58:54,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1688729896] [2021-11-07 01:58:54,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1688729896] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:58:54,904 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:58:54,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:58:54,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586118557] [2021-11-07 01:58:54,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:58:54,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:58:54,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:58:54,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:58:54,906 INFO L87 Difference]: Start difference. First operand 301 states and 386 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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 01:58:55,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:58:55,397 INFO L93 Difference]: Finished difference Result 612 states and 784 transitions. [2021-11-07 01:58:55,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:58:55,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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 89 [2021-11-07 01:58:55,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:58:55,400 INFO L225 Difference]: With dead ends: 612 [2021-11-07 01:58:55,401 INFO L226 Difference]: Without dead ends: 356 [2021-11-07 01:58:55,401 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:58:55,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2021-11-07 01:58:55,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 313. [2021-11-07 01:58:55,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 305 states have (on average 1.2950819672131149) internal successors, (395), 312 states have internal predecessors, (395), 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 01:58:55,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 395 transitions. [2021-11-07 01:58:55,425 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 395 transitions. Word has length 89 [2021-11-07 01:58:55,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:58:55,425 INFO L470 AbstractCegarLoop]: Abstraction has 313 states and 395 transitions. [2021-11-07 01:58:55,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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 01:58:55,426 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 395 transitions. [2021-11-07 01:58:55,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-07 01:58:55,427 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:58:55,427 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, 1, 1, 1, 1, 1, 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 01:58:55,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-11-07 01:58:55,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:58:55,640 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:58:55,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:58:55,641 INFO L85 PathProgramCache]: Analyzing trace with hash 506049873, now seen corresponding path program 1 times [2021-11-07 01:58:55,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:58:55,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [399670435] [2021-11-07 01:58:55,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:58:55,645 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:58:55,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:58:55,645 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:58:55,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 01:59:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:59:01,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 1850 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 01:59:01,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:59:01,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2021-11-07 01:59:01,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-11-07 01:59:02,020 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 01:59:02,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:59:02,526 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 01:59:02,527 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:59:02,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [399670435] [2021-11-07 01:59:02,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [399670435] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:59:02,527 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:59:02,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-07 01:59:02,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945248392] [2021-11-07 01:59:02,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 01:59:02,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:59:02,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 01:59:02,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:59:02,529 INFO L87 Difference]: Start difference. First operand 313 states and 395 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 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 01:59:14,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:59:14,767 INFO L93 Difference]: Finished difference Result 623 states and 793 transitions. [2021-11-07 01:59:14,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:59:14,772 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 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 93 [2021-11-07 01:59:14,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:59:14,775 INFO L225 Difference]: With dead ends: 623 [2021-11-07 01:59:14,775 INFO L226 Difference]: Without dead ends: 360 [2021-11-07 01:59:14,776 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:59:14,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-11-07 01:59:14,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 312. [2021-11-07 01:59:14,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 304 states have (on average 1.269736842105263) internal successors, (386), 311 states have internal predecessors, (386), 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 01:59:14,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 386 transitions. [2021-11-07 01:59:14,802 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 386 transitions. Word has length 93 [2021-11-07 01:59:14,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:59:14,803 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 386 transitions. [2021-11-07 01:59:14,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 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 01:59:14,803 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 386 transitions. [2021-11-07 01:59:14,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-07 01:59:14,808 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:59:14,808 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, 1, 1, 1, 1, 1, 1, 1, 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 01:59:14,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-07 01:59:15,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:59:15,032 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:59:15,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:59:15,033 INFO L85 PathProgramCache]: Analyzing trace with hash -187262311, now seen corresponding path program 1 times [2021-11-07 01:59:15,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:59:15,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [80378823] [2021-11-07 01:59:15,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:59:15,039 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:59:15,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:59:15,040 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:59:15,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-07 01:59:21,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:59:21,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 1876 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 01:59:21,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:59:22,330 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:59:22,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 25 treesize of output 9 [2021-11-07 01:59:22,482 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 01:59:22,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:59:24,245 INFO L354 Elim1Store]: treesize reduction 221, result has 42.6 percent of original size [2021-11-07 01:59:24,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 68 treesize of output 183 [2021-11-07 02:01:54,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:01:54,303 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:01:54,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [80378823] [2021-11-07 02:01:54,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [80378823] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:01:54,303 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:01:54,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 6] imperfect sequences [] total 11 [2021-11-07 02:01:54,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438507576] [2021-11-07 02:01:54,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 02:01:54,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:01:54,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 02:01:54,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-11-07 02:01:54,305 INFO L87 Difference]: Start difference. First operand 312 states and 386 transitions. Second operand has 11 states, 11 states have (on average 13.636363636363637) internal successors, (150), 11 states have internal predecessors, (150), 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 02:02:09,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:02:09,631 INFO L93 Difference]: Finished difference Result 684 states and 854 transitions. [2021-11-07 02:02:09,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-07 02:02:09,634 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.636363636363637) internal successors, (150), 11 states have internal predecessors, (150), 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 95 [2021-11-07 02:02:09,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:02:09,642 INFO L225 Difference]: With dead ends: 684 [2021-11-07 02:02:09,643 INFO L226 Difference]: Without dead ends: 522 [2021-11-07 02:02:09,644 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2021-11-07 02:02:09,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2021-11-07 02:02:09,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 364. [2021-11-07 02:02:09,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 356 states have (on average 1.2808988764044944) internal successors, (456), 363 states have internal predecessors, (456), 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 02:02:09,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 456 transitions. [2021-11-07 02:02:09,678 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 456 transitions. Word has length 95 [2021-11-07 02:02:09,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:02:09,679 INFO L470 AbstractCegarLoop]: Abstraction has 364 states and 456 transitions. [2021-11-07 02:02:09,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.636363636363637) internal successors, (150), 11 states have internal predecessors, (150), 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 02:02:09,679 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 456 transitions. [2021-11-07 02:02:09,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-07 02:02:09,681 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:02:09,681 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, 1, 1, 1, 1, 1, 1, 1, 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 02:02:09,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-07 02:02:09,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:02:09,896 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 02:02:09,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:02:09,897 INFO L85 PathProgramCache]: Analyzing trace with hash 622084315, now seen corresponding path program 1 times [2021-11-07 02:02:09,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:02:09,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1615346909] [2021-11-07 02:02:09,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:09,900 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:02:09,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:02:09,901 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:02:09,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-07 02:02:14,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:14,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 1874 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-07 02:02:14,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:02:15,960 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:15,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 25 treesize of output 9 [2021-11-07 02:02:16,157 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 02:02:16,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:02:18,018 INFO L354 Elim1Store]: treesize reduction 221, result has 42.6 percent of original size [2021-11-07 02:02:18,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 68 treesize of output 183 [2021-11-07 02:04:32,114 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 02:04:32,114 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:04:32,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1615346909] [2021-11-07 02:04:32,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1615346909] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:04:32,115 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:04:32,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 7] imperfect sequences [] total 13 [2021-11-07 02:04:32,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405110751] [2021-11-07 02:04:32,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 02:04:32,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:04:32,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 02:04:32,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-11-07 02:04:32,117 INFO L87 Difference]: Start difference. First operand 364 states and 456 transitions. Second operand has 13 states, 13 states have (on average 12.0) internal successors, (156), 13 states have internal predecessors, (156), 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 02:04:46,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:04:46,082 INFO L93 Difference]: Finished difference Result 660 states and 817 transitions. [2021-11-07 02:04:46,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-07 02:04:46,082 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 12.0) internal successors, (156), 13 states have internal predecessors, (156), 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 95 [2021-11-07 02:04:46,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:04:46,085 INFO L225 Difference]: With dead ends: 660 [2021-11-07 02:04:46,085 INFO L226 Difference]: Without dead ends: 520 [2021-11-07 02:04:46,086 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=295, Invalid=761, Unknown=0, NotChecked=0, Total=1056 [2021-11-07 02:04:46,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2021-11-07 02:04:46,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 368. [2021-11-07 02:04:46,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 360 states have (on average 1.2666666666666666) internal successors, (456), 367 states have internal predecessors, (456), 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 02:04:46,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 456 transitions. [2021-11-07 02:04:46,113 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 456 transitions. Word has length 95 [2021-11-07 02:04:46,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:04:46,114 INFO L470 AbstractCegarLoop]: Abstraction has 368 states and 456 transitions. [2021-11-07 02:04:46,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.0) internal successors, (156), 13 states have internal predecessors, (156), 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 02:04:46,114 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 456 transitions. [2021-11-07 02:04:46,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-07 02:04:46,115 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:04:46,116 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:04:46,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-07 02:04:46,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:04:46,332 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 02:04:46,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:04:46,333 INFO L85 PathProgramCache]: Analyzing trace with hash 822709213, now seen corresponding path program 1 times [2021-11-07 02:04:46,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:04:46,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [543434657] [2021-11-07 02:04:46,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:04:46,337 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:04:46,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:04:46,339 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:04:46,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aae555e-957b-494f-8563-1ebeca547a38/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-07 02:04:51,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:04:51,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 1878 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-07 02:04:51,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:04:53,598 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:04:53,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 20 select indices, 20 select index equivalence classes, 190 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 190 case distinctions, treesize of input 121 treesize of output 41 [2021-11-07 02:04:53,781 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 02:04:53,781 INFO L328 TraceCheckSpWp]: Computing backward predicates...