./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_move_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_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/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_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/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_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/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 ba6eb72b2235d93ac0dcdd3f0e672793184c4cf65112c581319750a174c5bca8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:36:33,798 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:36:33,800 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:36:33,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:36:33,833 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:36:33,835 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:36:33,837 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:36:33,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:36:33,841 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:36:33,842 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:36:33,843 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:36:33,845 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:36:33,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:36:33,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:36:33,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:36:33,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:36:33,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:36:33,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:36:33,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:36:33,857 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:36:33,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:36:33,860 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:36:33,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:36:33,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:36:33,867 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:36:33,868 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:36:33,868 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:36:33,869 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:36:33,870 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:36:33,871 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:36:33,872 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:36:33,873 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:36:33,874 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:36:33,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:36:33,876 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:36:33,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:36:33,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:36:33,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:36:33,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:36:33,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:36:33,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:36:33,882 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:36:33,909 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:36:33,909 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:36:33,910 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:36:33,911 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:36:33,911 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:36:33,911 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:36:33,911 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:36:33,912 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:36:33,912 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:36:33,912 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:36:33,912 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:36:33,913 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:36:33,913 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:36:33,913 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:36:33,913 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:36:33,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:36:33,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:36:33,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:36:33,915 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:36:33,915 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:36:33,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:36:33,916 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:36:33,916 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:36:33,916 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:36:33,917 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:36:33,917 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:36:33,917 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:36:33,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:36:33,918 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:36:33,918 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:36:33,918 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:36:33,918 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:36:33,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:36:33,919 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:36:33,919 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:36:33,919 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:36:33,920 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_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba6eb72b2235d93ac0dcdd3f0e672793184c4cf65112c581319750a174c5bca8 [2021-11-07 01:36:34,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:36:34,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:36:34,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:36:34,247 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:36:34,248 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:36:34,249 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i [2021-11-07 01:36:34,308 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/data/8b93189ab/32f5c5342a334f01a3f466ad4dd19960/FLAG90af1953c [2021-11-07 01:36:35,222 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:36:35,225 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i [2021-11-07 01:36:35,283 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/data/8b93189ab/32f5c5342a334f01a3f466ad4dd19960/FLAG90af1953c [2021-11-07 01:36:35,683 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/data/8b93189ab/32f5c5342a334f01a3f466ad4dd19960 [2021-11-07 01:36:35,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:36:35,687 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:36:35,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:36:35,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:36:35,695 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:36:35,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:36:35" (1/1) ... [2021-11-07 01:36:35,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5893a228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:35, skipping insertion in model container [2021-11-07 01:36:35,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:36:35" (1/1) ... [2021-11-07 01:36:35,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:36:35,881 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:36:36,179 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_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i[4493,4506] [2021-11-07 01:36:36,187 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_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i[4553,4566] [2021-11-07 01:36:36,216 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:36:36,223 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:36:37,434 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:37,435 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:37,436 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:37,437 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:37,438 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:37,452 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:37,453 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:37,455 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:37,456 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:37,458 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:37,459 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:37,460 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:37,460 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:37,911 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:36:37,912 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:36:37,913 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:36:37,914 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:36:37,916 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:36:37,917 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:36:37,917 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:36:37,918 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:36:37,919 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:36:37,920 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:36:38,159 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:36:38,485 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:38,486 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:38,507 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:38,509 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:38,515 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:38,515 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:38,530 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:38,531 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:38,532 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:38,533 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:38,533 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:38,534 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:38,534 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:38,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:36:38,622 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 01:36:38,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3eed6cf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:38, skipping insertion in model container [2021-11-07 01:36:38,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:36:38,624 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:36:38,626 INFO L168 Benchmark]: Toolchain (without parser) took 2937.31 ms. Allocated memory was 96.5 MB in the beginning and 130.0 MB in the end (delta: 33.6 MB). Free memory was 49.3 MB in the beginning and 65.4 MB in the end (delta: -16.1 MB). Peak memory consumption was 38.3 MB. Max. memory is 16.1 GB. [2021-11-07 01:36:38,627 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 96.5 MB. Free memory is still 75.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:36:38,628 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2932.04 ms. Allocated memory was 96.5 MB in the beginning and 130.0 MB in the end (delta: 33.6 MB). Free memory was 49.1 MB in the beginning and 65.4 MB in the end (delta: -16.3 MB). Peak memory consumption was 38.3 MB. Max. memory is 16.1 GB. [2021-11-07 01:36:38,630 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 96.5 MB. Free memory is still 75.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2932.04 ms. Allocated memory was 96.5 MB in the beginning and 130.0 MB in the end (delta: 33.6 MB). Free memory was 49.1 MB in the beginning and 65.4 MB in the end (delta: -16.3 MB). Peak memory consumption was 38.3 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_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/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_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/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_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/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 ba6eb72b2235d93ac0dcdd3f0e672793184c4cf65112c581319750a174c5bca8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:36:40,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:36:40,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:36:40,926 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:36:40,927 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:36:40,928 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:36:40,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:36:40,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:36:40,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:36:40,949 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:36:40,950 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:36:40,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:36:40,954 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:36:40,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:36:40,960 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:36:40,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:36:40,965 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:36:40,966 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:36:40,970 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:36:40,979 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:36:40,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:36:40,982 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:36:40,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:36:40,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:36:40,999 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:36:41,000 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:36:41,000 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:36:41,002 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:36:41,003 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:36:41,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:36:41,005 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:36:41,006 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:36:41,008 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:36:41,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:36:41,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:36:41,011 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:36:41,018 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:36:41,018 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:36:41,019 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:36:41,022 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:36:41,023 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:36:41,024 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:36:41,069 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:36:41,069 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:36:41,070 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:36:41,071 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:36:41,071 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:36:41,071 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:36:41,071 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:36:41,072 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:36:41,072 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:36:41,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:36:41,075 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:36:41,075 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:36:41,075 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:36:41,075 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:36:41,076 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:36:41,076 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:36:41,076 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:36:41,076 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:36:41,076 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:36:41,077 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:36:41,077 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:36:41,077 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:36:41,077 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:36:41,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:36:41,078 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:36:41,078 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:36:41,078 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:36:41,079 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:36:41,079 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:36:41,079 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:36:41,079 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:36:41,080 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:36:41,080 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_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba6eb72b2235d93ac0dcdd3f0e672793184c4cf65112c581319750a174c5bca8 [2021-11-07 01:36:41,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:36:41,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:36:41,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:36:41,455 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:36:41,456 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:36:41,457 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i [2021-11-07 01:36:41,524 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/data/65bec0115/2a67497cb005431b9de3a966eb6f3d12/FLAG98a081c7d [2021-11-07 01:36:42,481 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:36:42,482 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i [2021-11-07 01:36:42,537 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/data/65bec0115/2a67497cb005431b9de3a966eb6f3d12/FLAG98a081c7d [2021-11-07 01:36:42,915 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/data/65bec0115/2a67497cb005431b9de3a966eb6f3d12 [2021-11-07 01:36:42,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:36:42,921 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:36:42,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:36:42,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:36:42,928 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:36:42,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:36:42" (1/1) ... [2021-11-07 01:36:42,930 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@255a1d7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:42, skipping insertion in model container [2021-11-07 01:36:42,931 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:36:42" (1/1) ... [2021-11-07 01:36:42,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:36:43,157 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:36:43,496 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_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i[4493,4506] [2021-11-07 01:36:43,504 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_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i[4553,4566] [2021-11-07 01:36:43,533 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:36:43,540 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:36:44,649 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:44,650 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:44,650 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:44,652 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:44,653 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:44,671 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:44,672 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:44,674 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:44,675 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:44,678 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:44,679 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:44,681 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:44,681 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:45,282 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:36:45,283 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:36:45,284 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:36:45,299 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:36:45,300 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:36:45,301 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:36:45,302 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:36:45,303 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:36:45,303 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:36:45,304 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:36:45,518 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:36:45,895 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:45,896 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:45,920 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:45,921 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:45,928 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:45,928 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:45,944 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:45,945 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:45,946 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:45,947 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:45,947 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:45,948 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:45,948 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:45,985 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:36:46,032 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:36:46,105 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:36:46,109 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_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i[4493,4506] [2021-11-07 01:36:46,110 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_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i[4553,4566] [2021-11-07 01:36:46,113 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:36:46,114 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:36:46,162 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,166 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,167 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,167 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,168 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,181 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,181 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,182 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,183 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,184 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,185 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,185 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,186 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,243 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:36:46,250 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:36:46,251 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:36:46,254 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:36:46,255 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:36:46,256 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:36:46,256 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:36:46,257 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:36:46,258 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:36:46,259 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:36:46,301 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:36:46,452 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,452 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,464 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,465 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,484 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,485 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,503 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,504 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,505 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,505 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,506 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,506 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,507 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:36:46,577 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:36:46,604 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_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i[4493,4506] [2021-11-07 01:36:46,604 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_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i[4553,4566] [2021-11-07 01:36:46,606 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:36:46,607 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:36:46,652 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,653 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,653 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,653 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,654 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,660 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,662 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,663 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,663 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,665 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,667 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,668 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,668 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,704 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:36:46,705 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:36:46,707 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:36:46,707 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:36:46,708 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:36:46,709 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:36:46,709 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:36:46,710 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:36:46,710 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:36:46,711 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:36:46,760 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:36:46,855 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,857 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,869 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,870 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,909 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,909 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,920 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,936 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,936 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,937 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,937 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,938 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,938 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:36:46,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:36:47,403 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:36:47,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:47 WrapperNode [2021-11-07 01:36:47,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:36:47,406 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:36:47,406 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:36:47,406 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:36:47,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:47" (1/1) ... [2021-11-07 01:36:47,562 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:47" (1/1) ... [2021-11-07 01:36:47,667 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:36:47,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:36:47,669 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:36:47,669 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:36:47,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:47" (1/1) ... [2021-11-07 01:36:47,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:47" (1/1) ... [2021-11-07 01:36:47,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:47" (1/1) ... [2021-11-07 01:36:47,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:47" (1/1) ... [2021-11-07 01:36:47,760 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:47" (1/1) ... [2021-11-07 01:36:47,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:47" (1/1) ... [2021-11-07 01:36:47,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:47" (1/1) ... [2021-11-07 01:36:47,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:36:47,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:36:47,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:36:47,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:36:47,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:47" (1/1) ... [2021-11-07 01:36:47,821 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:36:47,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:36:47,845 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:36:47,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:36:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-07 01:36:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:36:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:36:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:36:47,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:36:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-07 01:36:47,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:36:47,890 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-07 01:36:47,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:36:47,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:36:47,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:36:47,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:36:47,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:36:47,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:36:47,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:36:47,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:36:47,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:37:01,989 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:37:01,989 INFO L299 CfgBuilder]: Removed 124 assume(true) statements. [2021-11-07 01:37:01,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:37:01 BoogieIcfgContainer [2021-11-07 01:37:01,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:37:01,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:37:01,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:37:01,996 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:37:01,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:36:42" (1/3) ... [2021-11-07 01:37:01,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49e9fe13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:37:01, skipping insertion in model container [2021-11-07 01:37:01,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:47" (2/3) ... [2021-11-07 01:37:01,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49e9fe13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:37:01, skipping insertion in model container [2021-11-07 01:37:01,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:37:01" (3/3) ... [2021-11-07 01:37:01,998 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_table_move_harness.i [2021-11-07 01:37:02,007 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:37:02,007 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-07 01:37:02,069 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:37:02,076 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 01:37:02,076 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-07 01:37:02,099 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 113 states have (on average 1.3628318584070795) internal successors, (154), 116 states have internal predecessors, (154), 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 01:37:02,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-07 01:37:02,109 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:37:02,110 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] [2021-11-07 01:37:02,110 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:37:02,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:37:02,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1930291544, now seen corresponding path program 1 times [2021-11-07 01:37:02,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:37:02,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [412178667] [2021-11-07 01:37:02,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:37:02,142 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:37:02,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:37:02,145 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:37:02,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:37:06,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:37:06,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 1642 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:37:06,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:37:06,560 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 01:37:06,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:37:06,739 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 01:37:06,741 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:37:06,741 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [412178667] [2021-11-07 01:37:06,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [412178667] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:37:06,745 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:37:06,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:37:06,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687716971] [2021-11-07 01:37:06,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:37:06,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:37:06,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:37:06,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:37:06,772 INFO L87 Difference]: Start difference. First operand has 117 states, 113 states have (on average 1.3628318584070795) internal successors, (154), 116 states have internal predecessors, (154), 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 30.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:37:06,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:37:06,798 INFO L93 Difference]: Finished difference Result 230 states and 303 transitions. [2021-11-07 01:37:06,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:37:06,799 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-07 01:37:06,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:37:06,808 INFO L225 Difference]: With dead ends: 230 [2021-11-07 01:37:06,808 INFO L226 Difference]: Without dead ends: 111 [2021-11-07 01:37:06,811 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 118 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 01:37:06,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-07 01:37:06,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2021-11-07 01:37:06,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 108 states have (on average 1.2222222222222223) internal successors, (132), 110 states have internal predecessors, (132), 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 01:37:06,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 132 transitions. [2021-11-07 01:37:06,851 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 132 transitions. Word has length 60 [2021-11-07 01:37:06,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:37:06,851 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 132 transitions. [2021-11-07 01:37:06,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:37:06,852 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 132 transitions. [2021-11-07 01:37:06,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-07 01:37:06,854 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:37:06,854 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] [2021-11-07 01:37:06,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:37:07,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:37:07,055 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:37:07,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:37:07,056 INFO L85 PathProgramCache]: Analyzing trace with hash 2019289401, now seen corresponding path program 1 times [2021-11-07 01:37:07,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:37:07,061 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [164500105] [2021-11-07 01:37:07,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:37:07,061 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:37:07,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:37:07,064 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:37:07,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:37:11,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:37:11,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 1650 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:37:11,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:37:11,618 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 01:37:11,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:37:11,919 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 01:37:11,920 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:37:11,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [164500105] [2021-11-07 01:37:11,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [164500105] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:37:11,920 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:37:11,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:37:11,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458661421] [2021-11-07 01:37:11,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:37:11,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:37:11,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:37:11,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:37:11,923 INFO L87 Difference]: Start difference. First operand 111 states and 132 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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 01:37:12,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:37:12,340 INFO L93 Difference]: Finished difference Result 295 states and 352 transitions. [2021-11-07 01:37:12,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:37:12,341 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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 63 [2021-11-07 01:37:12,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:37:12,345 INFO L225 Difference]: With dead ends: 295 [2021-11-07 01:37:12,345 INFO L226 Difference]: Without dead ends: 206 [2021-11-07 01:37:12,347 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 121 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 01:37:12,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-11-07 01:37:12,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 117. [2021-11-07 01:37:12,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 114 states have (on average 1.2105263157894737) internal successors, (138), 116 states have internal predecessors, (138), 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 01:37:12,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 138 transitions. [2021-11-07 01:37:12,376 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 138 transitions. Word has length 63 [2021-11-07 01:37:12,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:37:12,376 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 138 transitions. [2021-11-07 01:37:12,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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 01:37:12,377 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 138 transitions. [2021-11-07 01:37:12,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-07 01:37:12,383 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:37:12,383 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] [2021-11-07 01:37:12,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:37:12,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:37:12,605 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:37:12,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:37:12,606 INFO L85 PathProgramCache]: Analyzing trace with hash -986854087, now seen corresponding path program 1 times [2021-11-07 01:37:12,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:37:12,609 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [249564007] [2021-11-07 01:37:12,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:37:12,610 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:37:12,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:37:12,612 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:37:12,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:37:16,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:37:16,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 1656 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:37:16,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:37:16,634 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 01:37:16,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:37:16,922 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 01:37:16,923 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:37:16,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [249564007] [2021-11-07 01:37:16,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [249564007] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:37:16,923 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:37:16,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-07 01:37:16,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482095428] [2021-11-07 01:37:16,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:37:16,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:37:16,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:37:16,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:37:16,925 INFO L87 Difference]: Start difference. First operand 117 states and 138 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 01:37:17,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:37:17,126 INFO L93 Difference]: Finished difference Result 211 states and 249 transitions. [2021-11-07 01:37:17,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:37:17,128 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-11-07 01:37:17,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:37:17,130 INFO L225 Difference]: With dead ends: 211 [2021-11-07 01:37:17,130 INFO L226 Difference]: Without dead ends: 117 [2021-11-07 01:37:17,131 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 129 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 01:37:17,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-11-07 01:37:17,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 111. [2021-11-07 01:37:17,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 108 states have (on average 1.1851851851851851) internal successors, (128), 110 states have internal predecessors, (128), 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 01:37:17,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 128 transitions. [2021-11-07 01:37:17,139 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 128 transitions. Word has length 67 [2021-11-07 01:37:17,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:37:17,140 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 128 transitions. [2021-11-07 01:37:17,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 01:37:17,140 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 128 transitions. [2021-11-07 01:37:17,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-07 01:37:17,143 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:37:17,143 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 01:37:17,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:37:17,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:37:17,352 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:37:17,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:37:17,352 INFO L85 PathProgramCache]: Analyzing trace with hash -525678101, now seen corresponding path program 1 times [2021-11-07 01:37:17,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:37:17,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [210887231] [2021-11-07 01:37:17,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:37:17,356 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:37:17,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:37:17,357 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:37:17,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:37:21,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:37:21,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 1722 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 01:37:21,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:37:22,115 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 01:37:22,505 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 01:37:22,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:37:22,755 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 01:37:23,149 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 01:37:23,149 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:37:23,149 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [210887231] [2021-11-07 01:37:23,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [210887231] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:37:23,149 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:37:23,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-11-07 01:37:23,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388518304] [2021-11-07 01:37:23,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:37:23,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:37:23,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:37:23,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:37:23,151 INFO L87 Difference]: Start difference. First operand 111 states and 128 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 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 01:37:30,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:37:30,828 INFO L93 Difference]: Finished difference Result 226 states and 262 transitions. [2021-11-07 01:37:30,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 01:37:30,830 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 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 01:37:30,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:37:30,831 INFO L225 Difference]: With dead ends: 226 [2021-11-07 01:37:30,831 INFO L226 Difference]: Without dead ends: 150 [2021-11-07 01:37:30,832 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-11-07 01:37:30,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-11-07 01:37:30,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 113. [2021-11-07 01:37:30,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 110 states have (on average 1.1818181818181819) internal successors, (130), 112 states have internal predecessors, (130), 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 01:37:30,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 130 transitions. [2021-11-07 01:37:30,846 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 130 transitions. Word has length 73 [2021-11-07 01:37:30,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:37:30,846 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 130 transitions. [2021-11-07 01:37:30,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 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 01:37:30,847 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 130 transitions. [2021-11-07 01:37:30,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-07 01:37:30,850 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:37:30,850 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 01:37:30,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:37:31,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:37:31,064 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:37:31,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:37:31,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1413483945, now seen corresponding path program 1 times [2021-11-07 01:37:31,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:37:31,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [128416561] [2021-11-07 01:37:31,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:37:31,068 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:37:31,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:37:31,068 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:37:31,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:37:35,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:37:35,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 1719 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:37:35,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:37:35,668 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 01:37:35,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:37:36,053 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 01:37:36,053 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:37:36,053 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [128416561] [2021-11-07 01:37:36,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [128416561] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:37:36,054 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:37:36,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:37:36,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253257873] [2021-11-07 01:37:36,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:37:36,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:37:36,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:37:36,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:37:36,056 INFO L87 Difference]: Start difference. First operand 113 states and 130 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 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 01:37:36,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:37:36,209 INFO L93 Difference]: Finished difference Result 192 states and 222 transitions. [2021-11-07 01:37:36,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:37:36,210 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 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 01:37:36,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:37:36,211 INFO L225 Difference]: With dead ends: 192 [2021-11-07 01:37:36,211 INFO L226 Difference]: Without dead ends: 111 [2021-11-07 01:37:36,212 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 142 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 01:37:36,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-07 01:37:36,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2021-11-07 01:37:36,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 108 states have (on average 1.1666666666666667) internal successors, (126), 110 states have internal predecessors, (126), 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 01:37:36,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 126 transitions. [2021-11-07 01:37:36,223 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 126 transitions. Word has length 73 [2021-11-07 01:37:36,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:37:36,223 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 126 transitions. [2021-11-07 01:37:36,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 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 01:37:36,224 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 126 transitions. [2021-11-07 01:37:36,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-07 01:37:36,227 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:37:36,227 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] [2021-11-07 01:37:36,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:37:36,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:37:36,441 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:37:36,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:37:36,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1839567536, now seen corresponding path program 1 times [2021-11-07 01:37:36,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:37:36,444 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1580361835] [2021-11-07 01:37:36,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:37:36,445 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:37:36,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:37:36,445 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:37:36,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:37:40,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:37:40,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 1733 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 01:37:40,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:37:41,155 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 01:37:41,256 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 01:37:41,447 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 01:37:41,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:37:41,693 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 01:37:42,063 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 01:37:42,063 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:37:42,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1580361835] [2021-11-07 01:37:42,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1580361835] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:37:42,063 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:37:42,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-07 01:37:42,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567146699] [2021-11-07 01:37:42,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 01:37:42,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:37:42,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 01:37:42,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:37:42,065 INFO L87 Difference]: Start difference. First operand 111 states and 126 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 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 01:37:48,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:37:48,435 INFO L93 Difference]: Finished difference Result 256 states and 292 transitions. [2021-11-07 01:37:48,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:37:48,438 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 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 75 [2021-11-07 01:37:48,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:37:48,439 INFO L225 Difference]: With dead ends: 256 [2021-11-07 01:37:48,439 INFO L226 Difference]: Without dead ends: 179 [2021-11-07 01:37:48,440 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:37:48,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2021-11-07 01:37:48,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 111. [2021-11-07 01:37:48,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 108 states have (on average 1.1574074074074074) internal successors, (125), 110 states have internal predecessors, (125), 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 01:37:48,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 125 transitions. [2021-11-07 01:37:48,461 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 125 transitions. Word has length 75 [2021-11-07 01:37:48,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:37:48,461 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 125 transitions. [2021-11-07 01:37:48,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 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 01:37:48,468 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 125 transitions. [2021-11-07 01:37:48,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-07 01:37:48,470 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:37:48,470 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] [2021-11-07 01:37:48,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:37:48,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:37:48,671 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:37:48,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:37:48,671 INFO L85 PathProgramCache]: Analyzing trace with hash 435582489, now seen corresponding path program 1 times [2021-11-07 01:37:48,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:37:48,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1438255550] [2021-11-07 01:37:48,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:37:48,674 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:37:48,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:37:48,675 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:37:48,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:37:53,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:37:53,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 1746 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:37:53,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:37:53,446 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 01:37:53,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:37:53,621 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 01:37:53,621 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:37:53,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1438255550] [2021-11-07 01:37:53,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1438255550] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:37:53,621 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:37:53,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:37:53,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522695413] [2021-11-07 01:37:53,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:37:53,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:37:53,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:37:53,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:37:53,623 INFO L87 Difference]: Start difference. First operand 111 states and 125 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:37:53,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:37:53,899 INFO L93 Difference]: Finished difference Result 164 states and 183 transitions. [2021-11-07 01:37:53,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:37:53,900 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-11-07 01:37:53,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:37:53,901 INFO L225 Difference]: With dead ends: 164 [2021-11-07 01:37:53,901 INFO L226 Difference]: Without dead ends: 127 [2021-11-07 01:37:53,902 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 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 01:37:53,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-11-07 01:37:53,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 111. [2021-11-07 01:37:53,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 108 states have (on average 1.1481481481481481) internal successors, (124), 110 states have internal predecessors, (124), 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 01:37:53,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 124 transitions. [2021-11-07 01:37:53,910 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 124 transitions. Word has length 76 [2021-11-07 01:37:53,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:37:53,911 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 124 transitions. [2021-11-07 01:37:53,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:37:53,911 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 124 transitions. [2021-11-07 01:37:53,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-07 01:37:53,913 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:37:53,913 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] [2021-11-07 01:37:53,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-07 01:37:54,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:37:54,127 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:37:54,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:37:54,128 INFO L85 PathProgramCache]: Analyzing trace with hash 861984692, now seen corresponding path program 1 times [2021-11-07 01:37:54,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:37:54,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1012134907] [2021-11-07 01:37:54,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:37:54,131 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:37:54,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:37:54,131 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:37:54,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:37:58,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:37:58,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 1757 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 01:37:58,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:37:59,111 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 01:37:59,126 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 01:37:59,238 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 01:37:59,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:37:59,543 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 01:37:59,543 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:37:59,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1012134907] [2021-11-07 01:37:59,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1012134907] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:37:59,543 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:37:59,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-07 01:37:59,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470331733] [2021-11-07 01:37:59,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 01:37:59,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:37:59,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 01:37:59,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:37:59,545 INFO L87 Difference]: Start difference. First operand 111 states and 124 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:38:07,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:38:07,999 INFO L93 Difference]: Finished difference Result 171 states and 195 transitions. [2021-11-07 01:38:08,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:38:08,002 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-11-07 01:38:08,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:38:08,005 INFO L225 Difference]: With dead ends: 171 [2021-11-07 01:38:08,005 INFO L226 Difference]: Without dead ends: 133 [2021-11-07 01:38:08,006 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:38:08,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-11-07 01:38:08,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 111. [2021-11-07 01:38:08,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 108 states have (on average 1.1203703703703705) internal successors, (121), 110 states have internal predecessors, (121), 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 01:38:08,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 121 transitions. [2021-11-07 01:38:08,016 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 121 transitions. Word has length 78 [2021-11-07 01:38:08,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:38:08,016 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 121 transitions. [2021-11-07 01:38:08,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:38:08,017 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 121 transitions. [2021-11-07 01:38:08,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 01:38:08,018 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:38:08,018 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 01:38:08,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:38:08,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:38:08,232 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:38:08,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:38:08,232 INFO L85 PathProgramCache]: Analyzing trace with hash -731740625, now seen corresponding path program 1 times [2021-11-07 01:38:08,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:38:08,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [389089539] [2021-11-07 01:38:08,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:38:08,236 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:38:08,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:38:08,237 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:38:08,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:38:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:38:12,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 1770 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:38:12,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:38:13,075 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 01:38:13,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:38:13,227 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 01:38:13,228 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:38:13,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [389089539] [2021-11-07 01:38:13,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [389089539] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:38:13,228 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:38:13,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:38:13,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982894658] [2021-11-07 01:38:13,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:38:13,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:38:13,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:38:13,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:38:13,229 INFO L87 Difference]: Start difference. First operand 111 states and 121 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:38:13,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:38:13,269 INFO L93 Difference]: Finished difference Result 144 states and 159 transitions. [2021-11-07 01:38:13,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:38:13,270 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-07 01:38:13,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:38:13,271 INFO L225 Difference]: With dead ends: 144 [2021-11-07 01:38:13,271 INFO L226 Difference]: Without dead ends: 113 [2021-11-07 01:38:13,272 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:38:13,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-11-07 01:38:13,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2021-11-07 01:38:13,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 110 states have (on average 1.1181818181818182) internal successors, (123), 112 states have internal predecessors, (123), 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 01:38:13,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 123 transitions. [2021-11-07 01:38:13,281 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 123 transitions. Word has length 79 [2021-11-07 01:38:13,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:38:13,281 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 123 transitions. [2021-11-07 01:38:13,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:38:13,281 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 123 transitions. [2021-11-07 01:38:13,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 01:38:13,282 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:38:13,283 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:38:13,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-11-07 01:38:13,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:38:13,492 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:38:13,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:38:13,492 INFO L85 PathProgramCache]: Analyzing trace with hash -384306449, now seen corresponding path program 1 times [2021-11-07 01:38:13,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:38:13,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1996811346] [2021-11-07 01:38:13,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:38:13,495 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:38:13,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:38:13,496 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:38:13,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 01:38:18,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:38:18,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 1780 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:38:18,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:38:18,532 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:38:18,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:38:18,918 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:38:18,918 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:38:18,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1996811346] [2021-11-07 01:38:18,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1996811346] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:38:18,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1320131318] [2021-11-07 01:38:18,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:38:18,918 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:38:18,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:38:18,920 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:38:18,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-11-07 01:38:23,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:38:23,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 1780 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:38:23,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:38:24,063 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:38:24,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:38:24,251 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:38:24,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1320131318] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:38:24,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717284000] [2021-11-07 01:38:24,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:38:24,252 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:38:24,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:38:24,260 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:38:24,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-07 01:38:26,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:38:26,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 1780 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:38:26,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:38:26,651 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:38:26,651 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:38:27,087 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:38:27,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717284000] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:38:27,087 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-07 01:38:27,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 10 [2021-11-07 01:38:27,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224618461] [2021-11-07 01:38:27,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:38:27,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:38:27,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:38:27,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:38:27,089 INFO L87 Difference]: Start difference. First operand 113 states and 123 transitions. Second operand has 10 states, 10 states have (on average 8.8) internal successors, (88), 10 states have internal predecessors, (88), 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 01:38:27,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:38:27,465 INFO L93 Difference]: Finished difference Result 148 states and 165 transitions. [2021-11-07 01:38:27,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:38:27,472 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.8) internal successors, (88), 10 states have internal predecessors, (88), 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 81 [2021-11-07 01:38:27,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:38:27,473 INFO L225 Difference]: With dead ends: 148 [2021-11-07 01:38:27,473 INFO L226 Difference]: Without dead ends: 117 [2021-11-07 01:38:27,474 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 472 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:38:27,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-11-07 01:38:27,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2021-11-07 01:38:27,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 114 states have (on average 1.1140350877192982) internal successors, (127), 116 states have internal predecessors, (127), 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 01:38:27,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 127 transitions. [2021-11-07 01:38:27,484 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 127 transitions. Word has length 81 [2021-11-07 01:38:27,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:38:27,485 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 127 transitions. [2021-11-07 01:38:27,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.8) internal successors, (88), 10 states have internal predecessors, (88), 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 01:38:27,485 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 127 transitions. [2021-11-07 01:38:27,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-07 01:38:27,486 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:38:27,486 INFO L513 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:38:27,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-07 01:38:27,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2021-11-07 01:38:27,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 01:38:28,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:38:28,100 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:38:28,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:38:28,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1423326319, now seen corresponding path program 2 times [2021-11-07 01:38:28,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:38:28,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [804465308] [2021-11-07 01:38:28,104 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 01:38:28,104 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:38:28,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:38:28,115 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:38:28,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4b20e6-cc7e-4846-bb6e-da60fb701daa/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-07 01:40:45,555 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-07 01:40:45,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:40:48,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 1770 conjuncts, 93 conjunts are in the unsatisfiable core [2021-11-07 01:40:48,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:40:48,465 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 11 treesize of output 7 [2021-11-07 01:40:48,478 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 01:40:51,398 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 509 treesize of output 377 [2021-11-07 01:40:51,410 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 310 treesize of output 206 [2021-11-07 01:40:58,975 WARN L207 SmtUtils]: Spent 7.00 s on a formula simplification. DAG size of input: 533 DAG size of output: 220 [2021-11-07 01:40:58,978 INFO L354 Elim1Store]: treesize reduction 5843, result has 10.6 percent of original size [2021-11-07 01:40:58,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 29 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 588 treesize of output 772