./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_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_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/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_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/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_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/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 44162e1142387f3513ac3cf9af71d3c7aa6399e99cd364d08a07ceb8efc80a41 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:08:32,654 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:08:32,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:08:32,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:08:32,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:08:32,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:08:32,721 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:08:32,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:08:32,729 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:08:32,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:08:32,739 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:08:32,742 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:08:32,742 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:08:32,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:08:32,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:08:32,753 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:08:32,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:08:32,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:08:32,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:08:32,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:08:32,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:08:32,775 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:08:32,779 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:08:32,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:08:32,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:08:32,791 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:08:32,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:08:32,794 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:08:32,795 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:08:32,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:08:32,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:08:32,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:08:32,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:08:32,802 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:08:32,803 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:08:32,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:08:32,805 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:08:32,805 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:08:32,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:08:32,806 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:08:32,807 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:08:32,808 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 02:08:32,855 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:08:32,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:08:32,857 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:08:32,857 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:08:32,857 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:08:32,858 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:08:32,858 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:08:32,858 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:08:32,858 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:08:32,859 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:08:32,860 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:08:32,860 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:08:32,860 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:08:32,861 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:08:32,861 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:08:32,862 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:08:32,862 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:08:32,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:08:32,863 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:08:32,863 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:08:32,863 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:08:32,863 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:08:32,864 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:08:32,864 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:08:32,864 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:08:32,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:08:32,865 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:08:32,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:08:32,865 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:08:32,867 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:08:32,867 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:08:32,868 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:08:32,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:08:32,868 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:08:32,869 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:08:32,869 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:08:32,869 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_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44162e1142387f3513ac3cf9af71d3c7aa6399e99cd364d08a07ceb8efc80a41 [2021-11-07 02:08:33,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:08:33,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:08:33,233 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:08:33,234 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:08:33,235 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:08:33,236 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i [2021-11-07 02:08:33,318 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/data/704643e3c/d111616f491b426993ff0702aec6748f/FLAG5b271adfd [2021-11-07 02:08:34,342 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:08:34,344 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i [2021-11-07 02:08:34,400 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/data/704643e3c/d111616f491b426993ff0702aec6748f/FLAG5b271adfd [2021-11-07 02:08:34,743 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/data/704643e3c/d111616f491b426993ff0702aec6748f [2021-11-07 02:08:34,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:08:34,747 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:08:34,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:08:34,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:08:34,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:08:34,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:08:34" (1/1) ... [2021-11-07 02:08:34,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@670364f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:34, skipping insertion in model container [2021-11-07 02:08:34,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:08:34" (1/1) ... [2021-11-07 02:08:34,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:08:34,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:08:35,326 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_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i[4496,4509] [2021-11-07 02:08:35,340 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_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i[4556,4569] [2021-11-07 02:08:35,372 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:08:35,379 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:08:36,592 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,593 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,593 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,594 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,595 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,621 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,628 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,632 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,633 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,635 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,636 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,648 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,649 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:37,178 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:08:37,181 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:08:37,182 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:08:37,184 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:08:37,185 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:08:37,186 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:08:37,187 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:08:37,188 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:08:37,188 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:08:37,189 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:08:37,412 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:08:37,815 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:37,816 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:37,838 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:37,840 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:37,846 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:37,846 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:37,862 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:37,863 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:37,863 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:37,864 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:37,864 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:37,865 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:37,865 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:37,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:08:37,948 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 02:08:37,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3edbb23b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:37, skipping insertion in model container [2021-11-07 02:08:37,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:08:37,949 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:08:37,952 INFO L168 Benchmark]: Toolchain (without parser) took 3202.95 ms. Allocated memory was 100.7 MB in the beginning and 127.9 MB in the end (delta: 27.3 MB). Free memory was 56.9 MB in the beginning and 65.0 MB in the end (delta: -8.1 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. [2021-11-07 02:08:37,952 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 100.7 MB. Free memory is still 54.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:08:37,954 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3194.12 ms. Allocated memory was 100.7 MB in the beginning and 127.9 MB in the end (delta: 27.3 MB). Free memory was 56.7 MB in the beginning and 65.0 MB in the end (delta: -8.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. [2021-11-07 02:08:37,957 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 100.7 MB. Free memory is still 54.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3194.12 ms. Allocated memory was 100.7 MB in the beginning and 127.9 MB in the end (delta: 27.3 MB). Free memory was 56.7 MB in the beginning and 65.0 MB in the end (delta: -8.3 MB). Peak memory consumption was 26.8 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_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/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_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/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_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/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 44162e1142387f3513ac3cf9af71d3c7aa6399e99cd364d08a07ceb8efc80a41 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:08:40,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:08:40,380 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:08:40,447 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:08:40,448 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:08:40,449 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:08:40,451 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:08:40,454 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:08:40,456 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:08:40,457 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:08:40,458 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:08:40,460 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:08:40,461 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:08:40,462 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:08:40,464 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:08:40,465 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:08:40,467 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:08:40,468 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:08:40,470 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:08:40,472 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:08:40,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:08:40,483 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:08:40,484 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:08:40,485 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:08:40,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:08:40,491 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:08:40,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:08:40,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:08:40,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:08:40,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:08:40,495 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:08:40,496 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:08:40,497 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:08:40,498 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:08:40,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:08:40,507 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:08:40,511 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:08:40,511 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:08:40,511 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:08:40,513 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:08:40,514 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:08:40,519 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 02:08:40,566 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:08:40,567 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:08:40,568 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:08:40,569 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:08:40,569 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:08:40,569 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:08:40,569 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:08:40,570 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:08:40,570 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:08:40,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:08:40,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:08:40,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:08:40,573 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:08:40,574 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:08:40,574 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:08:40,574 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:08:40,574 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:08:40,575 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:08:40,575 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:08:40,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:08:40,576 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:08:40,576 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:08:40,576 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:08:40,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:08:40,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:08:40,577 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:08:40,577 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:08:40,577 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:08:40,578 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:08:40,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:08:40,578 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:08:40,578 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:08:40,579 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_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44162e1142387f3513ac3cf9af71d3c7aa6399e99cd364d08a07ceb8efc80a41 [2021-11-07 02:08:41,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:08:41,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:08:41,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:08:41,058 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:08:41,059 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:08:41,060 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i [2021-11-07 02:08:41,147 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/data/4543510be/d738f046f8264a198950ac9ba2ab62a4/FLAG75895e467 [2021-11-07 02:08:42,227 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:08:42,229 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i [2021-11-07 02:08:42,275 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/data/4543510be/d738f046f8264a198950ac9ba2ab62a4/FLAG75895e467 [2021-11-07 02:08:42,617 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/data/4543510be/d738f046f8264a198950ac9ba2ab62a4 [2021-11-07 02:08:42,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:08:42,621 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:08:42,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:08:42,622 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:08:42,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:08:42,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:08:42" (1/1) ... [2021-11-07 02:08:42,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fbb6fb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:42, skipping insertion in model container [2021-11-07 02:08:42,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:08:42" (1/1) ... [2021-11-07 02:08:42,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:08:42,791 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:08:43,142 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_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i[4496,4509] [2021-11-07 02:08:43,150 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_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i[4556,4569] [2021-11-07 02:08:43,178 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:08:43,185 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:08:44,472 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:44,473 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:44,473 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:44,475 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:44,477 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:44,515 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:44,520 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:44,533 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:44,534 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:44,537 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:44,539 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:44,540 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:44,541 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:45,110 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:08:45,112 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:08:45,113 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:08:45,115 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:08:45,117 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:08:45,119 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:08:45,120 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:08:45,121 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:08:45,122 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:08:45,124 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:08:45,437 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:08:45,864 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:45,865 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:45,893 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:45,894 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:45,900 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:45,901 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:45,919 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:45,920 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:45,921 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:45,921 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:45,922 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:45,922 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:45,923 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:45,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:08:46,037 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:08:46,078 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:08:46,082 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_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i[4496,4509] [2021-11-07 02:08:46,083 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_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i[4556,4569] [2021-11-07 02:08:46,085 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:08:46,085 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:08:46,119 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,120 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,120 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,120 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,121 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,128 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,128 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,129 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,130 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,131 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,132 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,132 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,133 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,209 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:08:46,212 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:08:46,213 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:08:46,214 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:08:46,215 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:08:46,216 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:08:46,217 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:08:46,218 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:08:46,219 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:08:46,219 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:08:46,256 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:08:46,427 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,428 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,440 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,441 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,444 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,445 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,461 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,484 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,484 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,485 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,485 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,486 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,486 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:08:46,565 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:08:46,595 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_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i[4496,4509] [2021-11-07 02:08:46,596 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_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i[4556,4569] [2021-11-07 02:08:46,598 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:08:46,600 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:08:46,643 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,644 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,644 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,645 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,646 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,653 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,654 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,655 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,656 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,658 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,659 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,661 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,661 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,703 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:08:46,704 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:08:46,706 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:08:46,707 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:08:46,708 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:08:46,708 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:08:46,709 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:08:46,709 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:08:46,711 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:08:46,711 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:08:46,737 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:08:46,892 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,893 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,907 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,908 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,913 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,914 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,925 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,925 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,926 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,927 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,927 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,927 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,928 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:46,959 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:08:47,340 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:08:47,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:47 WrapperNode [2021-11-07 02:08:47,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:08:47,348 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:08:47,348 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:08:47,348 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:08:47,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:47" (1/1) ... [2021-11-07 02:08:47,570 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:47" (1/1) ... [2021-11-07 02:08:47,715 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:08:47,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:08:47,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:08:47,716 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:08:47,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:47" (1/1) ... [2021-11-07 02:08:47,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:47" (1/1) ... [2021-11-07 02:08:47,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:47" (1/1) ... [2021-11-07 02:08:47,752 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:47" (1/1) ... [2021-11-07 02:08:47,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:47" (1/1) ... [2021-11-07 02:08:47,904 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:47" (1/1) ... [2021-11-07 02:08:47,923 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:47" (1/1) ... [2021-11-07 02:08:47,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:08:47,959 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:08:47,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:08:47,961 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:08:47,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:47" (1/1) ... [2021-11-07 02:08:47,971 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:08:47,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:08:47,998 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:08:48,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:08:48,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-07 02:08:48,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 02:08:48,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 02:08:48,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:08:48,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:08:48,061 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-07 02:08:48,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:08:48,061 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-07 02:08:48,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 02:08:48,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:08:48,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:08:48,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 02:08:48,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 02:08:48,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 02:08:48,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 02:08:48,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 02:08:48,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 02:08:48,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 02:09:12,825 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##296: assume !true; [2021-11-07 02:09:12,825 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##136: assume !true; [2021-11-07 02:09:12,825 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##327: assume !true; [2021-11-07 02:09:12,840 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:09:12,850 INFO L299 CfgBuilder]: Removed 280 assume(true) statements. [2021-11-07 02:09:12,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:09:12 BoogieIcfgContainer [2021-11-07 02:09:12,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:09:12,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:09:12,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:09:12,864 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:09:12,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:08:42" (1/3) ... [2021-11-07 02:09:12,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@463b846b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:09:12, skipping insertion in model container [2021-11-07 02:09:12,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:47" (2/3) ... [2021-11-07 02:09:12,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@463b846b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:09:12, skipping insertion in model container [2021-11-07 02:09:12,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:09:12" (3/3) ... [2021-11-07 02:09:12,869 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_table_foreach_harness.i [2021-11-07 02:09:12,876 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:09:12,876 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2021-11-07 02:09:12,953 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:09:12,960 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 02:09:12,961 INFO L340 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2021-11-07 02:09:12,995 INFO L276 IsEmpty]: Start isEmpty. Operand has 438 states, 422 states have (on average 1.518957345971564) internal successors, (641), 437 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:09:13,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-07 02:09:13,003 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:09:13,004 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] [2021-11-07 02:09:13,004 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 02:09:13,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:09:13,011 INFO L85 PathProgramCache]: Analyzing trace with hash -732608065, now seen corresponding path program 1 times [2021-11-07 02:09:13,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:09:13,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [943064189] [2021-11-07 02:09:13,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:09:13,035 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:09:13,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:09:13,038 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:09:13,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:09:17,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:09:17,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 1604 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 02:09:17,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:09:17,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:09:17,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:09:17,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:09:17,819 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:09:17,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [943064189] [2021-11-07 02:09:17,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [943064189] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:09:17,825 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:09:17,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 02:09:17,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786588900] [2021-11-07 02:09:17,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 02:09:17,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:09:17,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 02:09:17,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:09:17,860 INFO L87 Difference]: Start difference. First operand has 438 states, 422 states have (on average 1.518957345971564) internal successors, (641), 437 states have internal predecessors, (641), 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 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:09:17,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:09:17,962 INFO L93 Difference]: Finished difference Result 871 states and 1276 transitions. [2021-11-07 02:09:17,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 02:09:17,964 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-11-07 02:09:17,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:09:17,992 INFO L225 Difference]: With dead ends: 871 [2021-11-07 02:09:17,992 INFO L226 Difference]: Without dead ends: 432 [2021-11-07 02:09:18,002 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 100 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 02:09:18,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2021-11-07 02:09:18,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 432. [2021-11-07 02:09:18,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 417 states have (on average 1.407673860911271) internal successors, (587), 431 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:09:18,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 587 transitions. [2021-11-07 02:09:18,095 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 587 transitions. Word has length 51 [2021-11-07 02:09:18,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:09:18,096 INFO L470 AbstractCegarLoop]: Abstraction has 432 states and 587 transitions. [2021-11-07 02:09:18,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:09:18,096 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 587 transitions. [2021-11-07 02:09:18,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-07 02:09:18,099 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:09:18,100 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] [2021-11-07 02:09:18,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:09:18,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:09:18,315 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 02:09:18,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:09:18,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1623993204, now seen corresponding path program 1 times [2021-11-07 02:09:18,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:09:18,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1124190684] [2021-11-07 02:09:18,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:09:18,328 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:09:18,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:09:18,329 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:09:18,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:09:22,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:09:22,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 1612 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:09:22,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:09:22,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:09:22,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:09:23,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:09:23,119 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:09:23,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1124190684] [2021-11-07 02:09:23,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1124190684] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:09:23,119 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:09:23,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 02:09:23,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561983327] [2021-11-07 02:09:23,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:09:23,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:09:23,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:09:23,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:09:23,122 INFO L87 Difference]: Start difference. First operand 432 states and 587 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:09:23,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:09:23,326 INFO L93 Difference]: Finished difference Result 1262 states and 1722 transitions. [2021-11-07 02:09:23,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:09:23,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 54 [2021-11-07 02:09:23,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:09:23,332 INFO L225 Difference]: With dead ends: 1262 [2021-11-07 02:09:23,333 INFO L226 Difference]: Without dead ends: 852 [2021-11-07 02:09:23,334 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 103 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 02:09:23,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2021-11-07 02:09:23,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 435. [2021-11-07 02:09:23,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 420 states have (on average 1.4047619047619047) internal successors, (590), 434 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:09:23,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 590 transitions. [2021-11-07 02:09:23,352 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 590 transitions. Word has length 54 [2021-11-07 02:09:23,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:09:23,352 INFO L470 AbstractCegarLoop]: Abstraction has 435 states and 590 transitions. [2021-11-07 02:09:23,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:09:23,353 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 590 transitions. [2021-11-07 02:09:23,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-07 02:09:23,355 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:09:23,355 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] [2021-11-07 02:09:23,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:09:23,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:09:23,575 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 02:09:23,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:09:23,575 INFO L85 PathProgramCache]: Analyzing trace with hash 2027836688, now seen corresponding path program 1 times [2021-11-07 02:09:23,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:09:23,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [749202699] [2021-11-07 02:09:23,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:09:23,582 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:09:23,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:09:23,589 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:09:23,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:09:27,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:09:27,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 1615 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:09:27,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:09:27,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:09:27,958 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:09:28,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:09:28,215 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:09:28,215 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [749202699] [2021-11-07 02:09:28,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [749202699] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:09:28,215 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:09:28,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-07 02:09:28,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229930475] [2021-11-07 02:09:28,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:09:28,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:09:28,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:09:28,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:09:28,217 INFO L87 Difference]: Start difference. First operand 435 states and 590 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:09:28,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:09:28,558 INFO L93 Difference]: Finished difference Result 845 states and 1151 transitions. [2021-11-07 02:09:28,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:09:28,559 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-11-07 02:09:28,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:09:28,562 INFO L225 Difference]: With dead ends: 845 [2021-11-07 02:09:28,562 INFO L226 Difference]: Without dead ends: 435 [2021-11-07 02:09:28,563 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 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 02:09:28,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2021-11-07 02:09:28,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 432. [2021-11-07 02:09:28,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 417 states have (on average 1.4028776978417266) internal successors, (585), 431 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:09:28,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 585 transitions. [2021-11-07 02:09:28,586 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 585 transitions. Word has length 56 [2021-11-07 02:09:28,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:09:28,586 INFO L470 AbstractCegarLoop]: Abstraction has 432 states and 585 transitions. [2021-11-07 02:09:28,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:09:28,587 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 585 transitions. [2021-11-07 02:09:28,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-07 02:09:28,588 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:09:28,588 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] [2021-11-07 02:09:28,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:09:28,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:09:28,803 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 02:09:28,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:09:28,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1711778659, now seen corresponding path program 1 times [2021-11-07 02:09:28,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:09:28,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1988143420] [2021-11-07 02:09:28,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:09:28,808 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:09:28,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:09:28,809 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:09:28,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:09:33,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:09:33,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 1648 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 02:09:33,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:09:33,843 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 02:09:34,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:09:34,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:09:34,438 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 02:09:34,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:09:34,890 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:09:34,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1988143420] [2021-11-07 02:09:34,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1988143420] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:09:34,890 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:09:34,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-11-07 02:09:34,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731390095] [2021-11-07 02:09:34,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 02:09:34,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:09:34,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 02:09:34,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:09:34,892 INFO L87 Difference]: Start difference. First operand 432 states and 585 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:09:53,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:09:53,023 INFO L93 Difference]: Finished difference Result 845 states and 1151 transitions. [2021-11-07 02:09:53,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 02:09:53,027 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 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 59 [2021-11-07 02:09:53,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:09:53,030 INFO L225 Difference]: With dead ends: 845 [2021-11-07 02:09:53,033 INFO L226 Difference]: Without dead ends: 448 [2021-11-07 02:09:53,035 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-11-07 02:09:53,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2021-11-07 02:09:53,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 436. [2021-11-07 02:09:53,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 421 states have (on average 1.3990498812351544) internal successors, (589), 435 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:09:53,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 589 transitions. [2021-11-07 02:09:53,058 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 589 transitions. Word has length 59 [2021-11-07 02:09:53,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:09:53,061 INFO L470 AbstractCegarLoop]: Abstraction has 436 states and 589 transitions. [2021-11-07 02:09:53,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:09:53,061 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 589 transitions. [2021-11-07 02:09:53,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-07 02:09:53,069 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:09:53,070 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] [2021-11-07 02:09:53,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-07 02:09:53,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:09:53,291 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 02:09:53,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:09:53,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1391023395, now seen corresponding path program 1 times [2021-11-07 02:09:53,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:09:53,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [247130332] [2021-11-07 02:09:53,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:09:53,295 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:09:53,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:09:53,298 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:09:53,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 02:09:57,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:09:57,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 1642 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:09:57,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:09:58,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:09:58,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:09:58,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:09:58,418 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:09:58,418 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [247130332] [2021-11-07 02:09:58,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [247130332] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:09:58,419 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:09:58,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 02:09:58,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144323197] [2021-11-07 02:09:58,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:09:58,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:09:58,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:09:58,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:09:58,420 INFO L87 Difference]: Start difference. First operand 436 states and 589 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:09:58,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:09:58,797 INFO L93 Difference]: Finished difference Result 836 states and 1137 transitions. [2021-11-07 02:09:58,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:09:58,798 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 59 [2021-11-07 02:09:58,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:09:58,801 INFO L225 Difference]: With dead ends: 836 [2021-11-07 02:09:58,801 INFO L226 Difference]: Without dead ends: 432 [2021-11-07 02:09:58,802 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 114 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 02:09:58,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2021-11-07 02:09:58,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 432. [2021-11-07 02:09:58,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 417 states have (on average 1.3908872901678657) internal successors, (580), 431 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:09:58,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 580 transitions. [2021-11-07 02:09:58,820 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 580 transitions. Word has length 59 [2021-11-07 02:09:58,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:09:58,821 INFO L470 AbstractCegarLoop]: Abstraction has 432 states and 580 transitions. [2021-11-07 02:09:58,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:09:58,821 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 580 transitions. [2021-11-07 02:09:58,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-07 02:09:58,823 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:09:58,823 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 02:09:58,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 02:09:59,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:09:59,051 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 02:09:59,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:09:59,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1378545923, now seen corresponding path program 1 times [2021-11-07 02:09:59,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:09:59,054 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1313254409] [2021-11-07 02:09:59,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:09:59,054 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:09:59,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:09:59,055 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:09:59,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 02:10:03,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:10:03,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 1670 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 02:10:03,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:10:04,034 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 02:10:04,150 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 02:10:04,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:10:04,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:10:04,559 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 02:10:05,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:10:05,002 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:10:05,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1313254409] [2021-11-07 02:10:05,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1313254409] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:10:05,003 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:10:05,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-07 02:10:05,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33366315] [2021-11-07 02:10:05,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 02:10:05,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:10:05,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 02:10:05,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:10:05,005 INFO L87 Difference]: Start difference. First operand 432 states and 580 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 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 02:10:23,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:10:23,696 INFO L93 Difference]: Finished difference Result 1097 states and 1497 transitions. [2021-11-07 02:10:23,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 02:10:23,701 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 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 02:10:23,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:10:23,706 INFO L225 Difference]: With dead ends: 1097 [2021-11-07 02:10:23,706 INFO L226 Difference]: Without dead ends: 699 [2021-11-07 02:10:23,707 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-07 02:10:23,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2021-11-07 02:10:23,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 432. [2021-11-07 02:10:23,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 417 states have (on average 1.3860911270983214) internal successors, (578), 431 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:10:23,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 578 transitions. [2021-11-07 02:10:23,731 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 578 transitions. Word has length 63 [2021-11-07 02:10:23,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:10:23,732 INFO L470 AbstractCegarLoop]: Abstraction has 432 states and 578 transitions. [2021-11-07 02:10:23,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 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 02:10:23,732 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 578 transitions. [2021-11-07 02:10:23,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-07 02:10:23,733 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:10:23,733 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] [2021-11-07 02:10:23,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 02:10:23,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:10:23,947 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 02:10:23,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:10:23,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1115799681, now seen corresponding path program 1 times [2021-11-07 02:10:23,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:10:23,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [347429624] [2021-11-07 02:10:23,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:10:23,951 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:10:23,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:10:23,952 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:10:23,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 02:10:28,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:10:28,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 1696 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 02:10:28,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:10:28,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:10:28,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:10:28,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:10:28,966 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:10:28,967 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [347429624] [2021-11-07 02:10:28,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [347429624] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:10:28,967 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:10:28,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:10:28,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519981764] [2021-11-07 02:10:28,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:10:28,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:10:28,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:10:28,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:10:28,969 INFO L87 Difference]: Start difference. First operand 432 states and 578 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:10:29,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:10:29,056 INFO L93 Difference]: Finished difference Result 816 states and 1108 transitions. [2021-11-07 02:10:29,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:10:29,057 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-11-07 02:10:29,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:10:29,060 INFO L225 Difference]: With dead ends: 816 [2021-11-07 02:10:29,060 INFO L226 Difference]: Without dead ends: 435 [2021-11-07 02:10:29,061 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 126 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 02:10:29,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2021-11-07 02:10:29,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 435. [2021-11-07 02:10:29,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 420 states have (on average 1.3833333333333333) internal successors, (581), 434 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:10:29,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 581 transitions. [2021-11-07 02:10:29,080 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 581 transitions. Word has length 65 [2021-11-07 02:10:29,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:10:29,080 INFO L470 AbstractCegarLoop]: Abstraction has 435 states and 581 transitions. [2021-11-07 02:10:29,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:10:29,081 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 581 transitions. [2021-11-07 02:10:29,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-07 02:10:29,081 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:10:29,082 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:10:29,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 02:10:29,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:10:29,295 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 02:10:29,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:10:29,295 INFO L85 PathProgramCache]: Analyzing trace with hash -2081394175, now seen corresponding path program 1 times [2021-11-07 02:10:29,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:10:29,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [418730321] [2021-11-07 02:10:29,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:10:29,301 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:10:29,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:10:29,302 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:10:29,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 02:10:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:10:34,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 1706 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:10:34,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:10:34,485 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 02:10:34,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:10:34,958 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 02:10:34,958 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:10:34,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [418730321] [2021-11-07 02:10:34,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [418730321] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:10:34,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [433929248] [2021-11-07 02:10:34,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:10:34,959 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:10:34,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:10:34,964 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:10:34,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-11-07 02:10:36,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:10:36,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 1706 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 02:10:37,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:10:37,357 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 02:10:37,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:10:37,538 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 02:10:37,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [433929248] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:10:37,539 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 02:10:37,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [5, 5] total 12 [2021-11-07 02:10:37,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756555246] [2021-11-07 02:10:37,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 02:10:37,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:10:37,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 02:10:37,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-07 02:10:37,541 INFO L87 Difference]: Start difference. First operand 435 states and 581 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:10:39,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:10:39,404 INFO L93 Difference]: Finished difference Result 1133 states and 1531 transitions. [2021-11-07 02:10:39,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 02:10:39,405 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-11-07 02:10:39,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:10:39,411 INFO L225 Difference]: With dead ends: 1133 [2021-11-07 02:10:39,411 INFO L226 Difference]: Without dead ends: 747 [2021-11-07 02:10:39,412 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-11-07 02:10:39,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2021-11-07 02:10:39,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 453. [2021-11-07 02:10:39,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 438 states have (on average 1.3584474885844748) internal successors, (595), 452 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:10:39,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 595 transitions. [2021-11-07 02:10:39,441 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 595 transitions. Word has length 67 [2021-11-07 02:10:39,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:10:39,441 INFO L470 AbstractCegarLoop]: Abstraction has 453 states and 595 transitions. [2021-11-07 02:10:39,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:10:39,442 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 595 transitions. [2021-11-07 02:10:39,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-07 02:10:39,443 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:10:39,443 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] [2021-11-07 02:10:39,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 02:10:39,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-11-07 02:10:39,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 02:10:39,858 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 02:10:39,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:10:39,859 INFO L85 PathProgramCache]: Analyzing trace with hash -2076560230, now seen corresponding path program 1 times [2021-11-07 02:10:39,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:10:39,862 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [831051507] [2021-11-07 02:10:39,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:10:39,862 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:10:39,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:10:39,863 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:10:39,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 02:10:44,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:10:44,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 1720 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:10:44,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:10:44,767 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 02:10:44,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:10:45,220 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 02:10:45,221 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:10:45,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [831051507] [2021-11-07 02:10:45,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [831051507] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:10:45,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [211412952] [2021-11-07 02:10:45,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:10:45,222 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:10:45,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:10:45,227 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:10:45,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-11-07 02:10:47,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:10:47,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 1720 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 02:10:47,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:10:47,567 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 02:10:47,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:10:47,791 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 02:10:47,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [211412952] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:10:47,792 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 02:10:47,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [5, 5] total 11 [2021-11-07 02:10:47,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397025313] [2021-11-07 02:10:47,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:10:47,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:10:47,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:10:47,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-11-07 02:10:47,794 INFO L87 Difference]: Start difference. First operand 453 states and 595 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:10:55,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:10:55,749 INFO L93 Difference]: Finished difference Result 1056 states and 1404 transitions. [2021-11-07 02:10:55,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 02:10:55,753 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-11-07 02:10:55,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:10:55,758 INFO L225 Difference]: With dead ends: 1056 [2021-11-07 02:10:55,758 INFO L226 Difference]: Without dead ends: 697 [2021-11-07 02:10:55,760 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-11-07 02:10:55,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2021-11-07 02:10:55,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 453. [2021-11-07 02:10:55,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 438 states have (on average 1.3538812785388128) internal successors, (593), 452 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:10:55,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 593 transitions. [2021-11-07 02:10:55,789 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 593 transitions. Word has length 69 [2021-11-07 02:10:55,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:10:55,789 INFO L470 AbstractCegarLoop]: Abstraction has 453 states and 593 transitions. [2021-11-07 02:10:55,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:10:55,790 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 593 transitions. [2021-11-07 02:10:55,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-07 02:10:55,791 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:10:55,791 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] [2021-11-07 02:10:55,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-11-07 02:10:56,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 02:10:56,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:10:56,203 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 02:10:56,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:10:56,203 INFO L85 PathProgramCache]: Analyzing trace with hash 50901373, now seen corresponding path program 1 times [2021-11-07 02:10:56,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:10:56,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1400618354] [2021-11-07 02:10:56,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:10:56,207 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:10:56,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:10:56,207 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:10:56,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-07 02:11:00,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:11:01,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 1723 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:11:01,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:11:01,429 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 02:11:01,429 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:11:01,860 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 02:11:01,860 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:11:01,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1400618354] [2021-11-07 02:11:01,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1400618354] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:11:01,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1254051062] [2021-11-07 02:11:01,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:11:01,862 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:11:01,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:11:01,863 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:11:01,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-11-07 02:11:07,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:11:07,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 1723 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:11:07,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:11:07,880 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 02:11:07,880 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:11:08,095 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 02:11:08,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1254051062] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:11:08,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482135404] [2021-11-07 02:11:08,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:11:08,095 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:11:08,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:11:08,097 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:11:08,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-07 02:11:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:11:10,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 1723 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 02:11:10,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:11:11,026 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 02:11:11,032 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 02:11:11,177 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 02:11:11,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:11:11,596 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 02:11:11,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482135404] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:11:11,597 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-11-07 02:11:11,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [5, 5, 5, 5] total 13 [2021-11-07 02:11:11,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598369784] [2021-11-07 02:11:11,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 02:11:11,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:11:11,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 02:11:11,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-11-07 02:11:11,599 INFO L87 Difference]: Start difference. First operand 453 states and 593 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:11:50,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:11:50,130 INFO L93 Difference]: Finished difference Result 972 states and 1279 transitions. [2021-11-07 02:11:50,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 02:11:50,130 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-11-07 02:11:50,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:11:50,137 INFO L225 Difference]: With dead ends: 972 [2021-11-07 02:11:50,137 INFO L226 Difference]: Without dead ends: 582 [2021-11-07 02:11:50,138 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 406 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2021-11-07 02:11:50,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2021-11-07 02:11:50,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 453. [2021-11-07 02:11:50,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 438 states have (on average 1.32648401826484) internal successors, (581), 452 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:11:50,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 581 transitions. [2021-11-07 02:11:50,190 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 581 transitions. Word has length 70 [2021-11-07 02:11:50,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:11:50,190 INFO L470 AbstractCegarLoop]: Abstraction has 453 states and 581 transitions. [2021-11-07 02:11:50,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:11:50,190 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 581 transitions. [2021-11-07 02:11:50,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-07 02:11:50,191 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:11:50,191 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] [2021-11-07 02:11:50,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2021-11-07 02:11:50,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-07 02:11:50,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-07 02:11:50,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:11:50,793 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 02:11:50,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:11:50,793 INFO L85 PathProgramCache]: Analyzing trace with hash -428832652, now seen corresponding path program 1 times [2021-11-07 02:11:50,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:11:50,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1770588389] [2021-11-07 02:11:50,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:11:50,797 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:11:50,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:11:50,800 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:11:50,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-07 02:11:56,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:11:56,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 1736 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:11:56,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:11:56,811 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 02:11:56,811 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:11:57,360 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 02:11:57,361 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:11:57,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1770588389] [2021-11-07 02:11:57,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1770588389] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:11:57,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [562592694] [2021-11-07 02:11:57,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:11:57,361 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:11:57,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:11:57,362 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:11:57,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2021-11-07 02:12:02,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:12:03,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 1736 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:12:03,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:12:03,304 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 02:12:03,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:12:03,517 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 02:12:03,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [562592694] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:12:03,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121641219] [2021-11-07 02:12:03,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:12:03,517 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:12:03,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:12:03,518 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:12:03,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-07 02:12:06,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:12:06,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 1736 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 02:12:06,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:12:06,548 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 02:12:06,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:12:07,093 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 02:12:07,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121641219] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:12:07,094 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-07 02:12:07,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 10 [2021-11-07 02:12:07,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517709087] [2021-11-07 02:12:07,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 02:12:07,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:12:07,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 02:12:07,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-07 02:12:07,097 INFO L87 Difference]: Start difference. First operand 453 states and 581 transitions. Second operand has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:12:08,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:12:08,339 INFO L93 Difference]: Finished difference Result 859 states and 1118 transitions. [2021-11-07 02:12:08,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 02:12:08,341 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-11-07 02:12:08,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:12:08,345 INFO L225 Difference]: With dead ends: 859 [2021-11-07 02:12:08,345 INFO L226 Difference]: Without dead ends: 459 [2021-11-07 02:12:08,352 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2021-11-07 02:12:08,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2021-11-07 02:12:08,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 459. [2021-11-07 02:12:08,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 444 states have (on average 1.322072072072072) internal successors, (587), 458 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:12:08,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 587 transitions. [2021-11-07 02:12:08,401 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 587 transitions. Word has length 71 [2021-11-07 02:12:08,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:12:08,403 INFO L470 AbstractCegarLoop]: Abstraction has 459 states and 587 transitions. [2021-11-07 02:12:08,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:12:08,404 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 587 transitions. [2021-11-07 02:12:08,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-07 02:12:08,405 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:12:08,405 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] [2021-11-07 02:12:08,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-07 02:12:08,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2021-11-07 02:12:08,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-07 02:12:09,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:12:09,019 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 02:12:09,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:12:09,019 INFO L85 PathProgramCache]: Analyzing trace with hash -438744204, now seen corresponding path program 2 times [2021-11-07 02:12:09,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:12:09,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [474277523] [2021-11-07 02:12:09,023 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 02:12:09,023 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:12:09,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:12:09,024 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:12:09,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bb889d-485c-40d4-8d44-7ce4a1e1cafe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-07 02:17:25,260 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-07 02:17:25,260 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 02:17:28,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 1726 conjuncts, 62 conjunts are in the unsatisfiable core [2021-11-07 02:17:28,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:17:29,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:29,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:29,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:29,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:29,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:29,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:29,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:29,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:29,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:29,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:29,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:29,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:29,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:29,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:29,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:29,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:29,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:29,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:29,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:29,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:29,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:29,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:29,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:29,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:29,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:29,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:29,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:29,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:29,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 109 [2021-11-07 02:17:32,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,316 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 02:17:32,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,341 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 02:17:32,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,378 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 02:17:32,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,389 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 02:17:32,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,408 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 02:17:32,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,418 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 02:17:32,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:17:32,437 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 02:17:32,808 INFO L354 Elim1Store]: treesize reduction 232, result has 27.7 percent of original size [2021-11-07 02:17:32,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 50 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 533 treesize of output 357 [2021-11-07 02:17:34,848 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:17:34,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 507 treesize of output 411 [2021-11-07 02:17:35,232 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-07 02:17:35,232 INFO L328 TraceCheckSpWp]: Computing backward predicates...