./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_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_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/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_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/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_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/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 9a96b91703f0cc76adc9b0fdbd8386a96920c1be21a810b6415a59c2166f1461 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:16:33,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:16:33,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:16:33,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:16:33,760 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:16:33,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:16:33,768 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:16:33,773 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:16:33,776 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:16:33,784 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:16:33,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:16:33,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:16:33,789 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:16:33,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:16:33,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:16:33,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:16:33,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:16:33,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:16:33,812 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:16:33,817 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:16:33,819 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:16:33,822 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:16:33,827 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:16:33,828 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:16:33,841 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:16:33,842 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:16:33,842 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:16:33,845 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:16:33,846 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:16:33,848 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:16:33,849 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:16:33,850 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:16:33,852 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:16:33,854 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:16:33,856 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:16:33,857 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:16:33,858 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:16:33,858 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:16:33,859 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:16:33,860 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:16:33,861 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:16:33,862 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:16:33,917 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:16:33,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:16:33,919 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:16:33,920 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:16:33,920 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:16:33,920 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:16:33,921 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:16:33,921 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:16:33,929 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:16:33,929 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:16:33,930 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:16:33,931 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:16:33,931 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:16:33,931 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:16:33,932 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:16:33,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:16:33,933 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:16:33,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:16:33,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:16:33,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:16:33,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:16:33,934 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:16:33,935 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:16:33,935 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:16:33,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:16:33,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:16:33,936 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:16:33,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:16:33,937 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:16:33,939 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:16:33,939 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:16:33,939 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:16:33,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:16:33,940 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:16:33,940 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:16:33,941 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:16:33,941 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_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a96b91703f0cc76adc9b0fdbd8386a96920c1be21a810b6415a59c2166f1461 [2021-11-07 01:16:34,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:16:34,365 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:16:34,368 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:16:34,370 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:16:34,371 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:16:34,372 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i [2021-11-07 01:16:34,463 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/data/02e0cece5/8c0345d2da43447fb9e291e7e5b8d83e/FLAGdeb083589 [2021-11-07 01:16:35,568 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:16:35,570 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i [2021-11-07 01:16:35,627 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/data/02e0cece5/8c0345d2da43447fb9e291e7e5b8d83e/FLAGdeb083589 [2021-11-07 01:16:35,936 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/data/02e0cece5/8c0345d2da43447fb9e291e7e5b8d83e [2021-11-07 01:16:35,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:16:35,941 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:16:35,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:16:35,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:16:35,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:16:35,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:16:35" (1/1) ... [2021-11-07 01:16:35,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f3a50e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:16:35, skipping insertion in model container [2021-11-07 01:16:35,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:16:35" (1/1) ... [2021-11-07 01:16:35,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:16:36,157 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:16:36,582 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_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i[4494,4507] [2021-11-07 01:16:36,594 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_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i[4554,4567] [2021-11-07 01:16:36,629 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:16:36,647 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:16:38,183 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:38,184 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:38,185 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:38,187 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:38,189 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:38,224 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:38,231 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:38,237 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:38,238 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:38,734 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:16:38,736 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:16:38,737 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:16:38,738 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:16:38,740 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:16:38,741 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:16:38,742 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:16:38,743 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:16:38,744 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:16:38,744 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:16:38,979 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:16:39,141 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:39,141 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:39,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:16:39,327 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 01:16:39,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3bc02b1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:16:39, skipping insertion in model container [2021-11-07 01:16:39,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:16:39,330 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:16:39,333 INFO L168 Benchmark]: Toolchain (without parser) took 3389.48 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 40.9 MB in the beginning and 55.9 MB in the end (delta: -15.0 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. [2021-11-07 01:16:39,334 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 86.0 MB. Free memory is still 66.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:16:39,335 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3385.95 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 40.6 MB in the beginning and 55.9 MB in the end (delta: -15.2 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:16:39,339 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 86.0 MB. Free memory is still 66.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3385.95 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 40.6 MB in the beginning and 55.9 MB in the end (delta: -15.2 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6990]: 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_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/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_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/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_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/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 9a96b91703f0cc76adc9b0fdbd8386a96920c1be21a810b6415a59c2166f1461 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:16:42,197 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:16:42,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:16:42,276 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:16:42,277 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:16:42,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:16:42,282 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:16:42,284 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:16:42,287 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:16:42,288 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:16:42,290 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:16:42,292 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:16:42,293 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:16:42,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:16:42,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:16:42,298 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:16:42,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:16:42,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:16:42,305 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:16:42,308 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:16:42,310 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:16:42,312 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:16:42,314 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:16:42,316 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:16:42,321 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:16:42,321 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:16:42,322 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:16:42,323 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:16:42,324 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:16:42,326 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:16:42,326 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:16:42,327 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:16:42,329 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:16:42,330 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:16:42,331 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:16:42,332 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:16:42,333 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:16:42,333 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:16:42,333 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:16:42,334 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:16:42,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:16:42,339 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:16:42,398 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:16:42,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:16:42,400 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:16:42,400 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:16:42,400 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:16:42,401 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:16:42,401 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:16:42,401 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:16:42,402 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:16:42,403 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:16:42,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:16:42,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:16:42,405 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:16:42,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:16:42,406 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:16:42,406 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:16:42,406 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:16:42,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:16:42,407 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:16:42,407 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:16:42,407 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:16:42,408 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:16:42,408 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:16:42,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:16:42,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:16:42,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:16:42,409 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:16:42,409 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:16:42,410 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:16:42,410 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:16:42,410 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:16:42,410 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:16:42,411 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_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a96b91703f0cc76adc9b0fdbd8386a96920c1be21a810b6415a59c2166f1461 [2021-11-07 01:16:42,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:16:42,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:16:42,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:16:42,948 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:16:42,949 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:16:42,950 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i [2021-11-07 01:16:43,045 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/data/4328668d3/be2c9e98840041f6999fb3fc565cc86b/FLAGcce7ba4c8 [2021-11-07 01:16:44,161 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:16:44,162 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i [2021-11-07 01:16:44,254 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/data/4328668d3/be2c9e98840041f6999fb3fc565cc86b/FLAGcce7ba4c8 [2021-11-07 01:16:44,541 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/data/4328668d3/be2c9e98840041f6999fb3fc565cc86b [2021-11-07 01:16:44,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:16:44,546 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:16:44,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:16:44,549 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:16:44,553 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:16:44,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:16:44" (1/1) ... [2021-11-07 01:16:44,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ad3975d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:16:44, skipping insertion in model container [2021-11-07 01:16:44,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:16:44" (1/1) ... [2021-11-07 01:16:44,565 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:16:44,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:16:45,153 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_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i[4494,4507] [2021-11-07 01:16:45,166 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_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i[4554,4567] [2021-11-07 01:16:45,200 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:16:45,220 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:16:46,411 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:46,412 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:46,413 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:46,414 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:46,415 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:46,435 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:46,437 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:46,439 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:46,440 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:47,095 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:16:47,097 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:16:47,099 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:16:47,102 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:16:47,105 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:16:47,110 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:16:47,116 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:16:47,117 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:16:47,118 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:16:47,122 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:16:47,442 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:16:47,640 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:47,641 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:47,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:16:47,813 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:16:47,881 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:16:47,891 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_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i[4494,4507] [2021-11-07 01:16:47,891 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_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i[4554,4567] [2021-11-07 01:16:47,900 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:16:47,901 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:16:47,992 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:47,993 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:47,993 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:47,994 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:47,995 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:48,010 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:48,011 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:48,012 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:48,012 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:48,096 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:16:48,098 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:16:48,098 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:16:48,100 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:16:48,102 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:16:48,102 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:16:48,103 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:16:48,104 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:16:48,104 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:16:48,105 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:16:48,152 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:16:48,273 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:48,278 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:48,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:16:48,435 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:16:48,467 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_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i[4494,4507] [2021-11-07 01:16:48,468 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_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i[4554,4567] [2021-11-07 01:16:48,470 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:16:48,471 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:16:48,558 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:48,569 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:48,569 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:48,570 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:48,571 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:48,580 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:48,580 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:48,582 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:48,582 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:48,625 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:16:48,626 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:16:48,627 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:16:48,628 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:16:48,629 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:16:48,630 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:16:48,631 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:16:48,632 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:16:48,633 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:16:48,634 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:16:48,665 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:16:48,816 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:48,817 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:16:48,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:16:49,182 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:16:49,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:16:49 WrapperNode [2021-11-07 01:16:49,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:16:49,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:16:49,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:16:49,185 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:16:49,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:16:49" (1/1) ... [2021-11-07 01:16:49,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:16:49" (1/1) ... [2021-11-07 01:16:49,484 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:16:49,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:16:49,485 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:16:49,485 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:16:49,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:16:49" (1/1) ... [2021-11-07 01:16:49,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:16:49" (1/1) ... [2021-11-07 01:16:49,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:16:49" (1/1) ... [2021-11-07 01:16:49,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:16:49" (1/1) ... [2021-11-07 01:16:49,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:16:49" (1/1) ... [2021-11-07 01:16:49,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:16:49" (1/1) ... [2021-11-07 01:16:49,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:16:49" (1/1) ... [2021-11-07 01:16:49,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:16:49,725 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:16:49,725 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:16:49,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:16:49,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:16:49" (1/1) ... [2021-11-07 01:16:49,736 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:16:49,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:16:49,770 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:16:49,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:16:49,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:16:49,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:16:49,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:16:49,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:16:49,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:16:49,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:16:49,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:16:49,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:16:49,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:16:49,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:16:49,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:16:49,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:16:49,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:16:49,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:16:49,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:17:14,342 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:17:14,342 INFO L299 CfgBuilder]: Removed 139 assume(true) statements. [2021-11-07 01:17:14,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:17:14 BoogieIcfgContainer [2021-11-07 01:17:14,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:17:14,348 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:17:14,348 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:17:14,352 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:17:14,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:16:44" (1/3) ... [2021-11-07 01:17:14,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37a412e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:17:14, skipping insertion in model container [2021-11-07 01:17:14,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:16:49" (2/3) ... [2021-11-07 01:17:14,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37a412e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:17:14, skipping insertion in model container [2021-11-07 01:17:14,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:17:14" (3/3) ... [2021-11-07 01:17:14,356 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_advance_harness.i [2021-11-07 01:17:14,363 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:17:14,363 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations. [2021-11-07 01:17:14,427 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:17:14,434 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:17:14,434 INFO L340 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2021-11-07 01:17:14,462 INFO L276 IsEmpty]: Start isEmpty. Operand has 329 states, 305 states have (on average 1.4950819672131148) internal successors, (456), 328 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:17:14,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-07 01:17:14,472 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:17:14,473 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] [2021-11-07 01:17:14,474 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-07 01:17:14,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:17:14,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1060108463, now seen corresponding path program 1 times [2021-11-07 01:17:14,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:17:14,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [240937338] [2021-11-07 01:17:14,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:17:14,520 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:17:14,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:17:14,529 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:17:14,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:17:19,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:17:19,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 1849 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:17:19,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:17:20,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:17:20,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:17:20,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:17:20,570 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:17:20,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [240937338] [2021-11-07 01:17:20,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [240937338] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:17:20,571 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:17:20,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:17:20,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311225203] [2021-11-07 01:17:20,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:17:20,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:17:20,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:17:20,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:17:20,601 INFO L87 Difference]: Start difference. First operand has 329 states, 305 states have (on average 1.4950819672131148) internal successors, (456), 328 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:17:20,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:17:20,664 INFO L93 Difference]: Finished difference Result 654 states and 907 transitions. [2021-11-07 01:17:20,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:17:20,666 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-11-07 01:17:20,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:17:20,686 INFO L225 Difference]: With dead ends: 654 [2021-11-07 01:17:20,688 INFO L226 Difference]: Without dead ends: 324 [2021-11-07 01:17:20,700 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:17:20,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2021-11-07 01:17:20,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2021-11-07 01:17:20,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 301 states have (on average 1.3754152823920265) internal successors, (414), 323 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:17:20,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 414 transitions. [2021-11-07 01:17:20,802 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 414 transitions. Word has length 40 [2021-11-07 01:17:20,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:17:20,803 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 414 transitions. [2021-11-07 01:17:20,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:17:20,803 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 414 transitions. [2021-11-07 01:17:20,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-07 01:17:20,812 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:17:20,812 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] [2021-11-07 01:17:20,879 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-07 01:17:21,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:17:21,029 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-07 01:17:21,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:17:21,030 INFO L85 PathProgramCache]: Analyzing trace with hash 187425810, now seen corresponding path program 1 times [2021-11-07 01:17:21,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:17:21,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [503171115] [2021-11-07 01:17:21,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:17:21,040 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:17:21,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:17:21,041 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:17:21,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:17:26,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:17:26,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 1877 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:17:26,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:17:26,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:17:26,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:17:27,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:17:27,234 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:17:27,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [503171115] [2021-11-07 01:17:27,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [503171115] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:17:27,235 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:17:27,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:17:27,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653497703] [2021-11-07 01:17:27,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:17:27,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:17:27,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:17:27,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:17:27,240 INFO L87 Difference]: Start difference. First operand 324 states and 414 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:17:34,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:17:34,916 INFO L93 Difference]: Finished difference Result 622 states and 794 transitions. [2021-11-07 01:17:34,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:17:34,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 42 [2021-11-07 01:17:34,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:17:34,920 INFO L225 Difference]: With dead ends: 622 [2021-11-07 01:17:34,921 INFO L226 Difference]: Without dead ends: 324 [2021-11-07 01:17:34,922 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:17:34,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2021-11-07 01:17:34,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2021-11-07 01:17:34,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 301 states have (on average 1.3654485049833887) internal successors, (411), 323 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:17:34,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 411 transitions. [2021-11-07 01:17:34,939 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 411 transitions. Word has length 42 [2021-11-07 01:17:34,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:17:34,940 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 411 transitions. [2021-11-07 01:17:34,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:17:34,940 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 411 transitions. [2021-11-07 01:17:34,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-07 01:17:34,943 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:17:34,943 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 01:17:35,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-07 01:17:35,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:17:35,169 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-07 01:17:35,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:17:35,170 INFO L85 PathProgramCache]: Analyzing trace with hash -646967702, now seen corresponding path program 1 times [2021-11-07 01:17:35,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:17:35,175 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1875169541] [2021-11-07 01:17:35,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:17:35,176 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:17:35,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:17:35,179 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:17:35,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:17:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:17:40,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 1900 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:17:40,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:17:40,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:17:40,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:17:41,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:17:41,099 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:17:41,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1875169541] [2021-11-07 01:17:41,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1875169541] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:17:41,100 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:17:41,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:17:41,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6884153] [2021-11-07 01:17:41,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:17:41,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:17:41,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:17:41,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:17:41,103 INFO L87 Difference]: Start difference. First operand 324 states and 411 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 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 01:17:50,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:17:50,187 INFO L93 Difference]: Finished difference Result 733 states and 944 transitions. [2021-11-07 01:17:50,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:17:50,187 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 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 01:17:50,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:17:50,191 INFO L225 Difference]: With dead ends: 733 [2021-11-07 01:17:50,191 INFO L226 Difference]: Without dead ends: 434 [2021-11-07 01:17:50,192 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:17:50,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2021-11-07 01:17:50,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 346. [2021-11-07 01:17:50,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 323 states have (on average 1.3405572755417956) internal successors, (433), 345 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:17:50,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 433 transitions. [2021-11-07 01:17:50,207 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 433 transitions. Word has length 54 [2021-11-07 01:17:50,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:17:50,208 INFO L470 AbstractCegarLoop]: Abstraction has 346 states and 433 transitions. [2021-11-07 01:17:50,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 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 01:17:50,208 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 433 transitions. [2021-11-07 01:17:50,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-07 01:17:50,211 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:17:50,211 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 01:17:50,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:17:50,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:17:50,430 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-07 01:17:50,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:17:50,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1198399464, now seen corresponding path program 1 times [2021-11-07 01:17:50,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:17:50,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57266605] [2021-11-07 01:17:50,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:17:50,437 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:17:50,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:17:50,439 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:17:50,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:17:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:17:55,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 1903 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 01:17:55,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:17:56,241 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 18 treesize of output 14 [2021-11-07 01:17:56,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:17:56,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:17:57,195 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 40 treesize of output 34 [2021-11-07 01:17:57,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:17:57,524 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:17:57,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [57266605] [2021-11-07 01:17:57,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [57266605] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:17:57,524 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:17:57,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 13 [2021-11-07 01:17:57,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92783491] [2021-11-07 01:17:57,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 01:17:57,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:17:57,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 01:17:57,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:17:57,526 INFO L87 Difference]: Start difference. First operand 346 states and 433 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:18:54,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:18:54,182 INFO L93 Difference]: Finished difference Result 1099 states and 1394 transitions. [2021-11-07 01:18:54,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-07 01:18:54,183 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-07 01:18:54,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:18:54,188 INFO L225 Difference]: With dead ends: 1099 [2021-11-07 01:18:54,188 INFO L226 Difference]: Without dead ends: 780 [2021-11-07 01:18:54,190 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2021-11-07 01:18:54,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2021-11-07 01:18:54,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 344. [2021-11-07 01:18:54,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 321 states have (on average 1.3395638629283488) internal successors, (430), 343 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:18:54,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 430 transitions. [2021-11-07 01:18:54,211 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 430 transitions. Word has length 54 [2021-11-07 01:18:54,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:18:54,212 INFO L470 AbstractCegarLoop]: Abstraction has 344 states and 430 transitions. [2021-11-07 01:18:54,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:18:54,212 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 430 transitions. [2021-11-07 01:18:54,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-07 01:18:54,215 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:18:54,215 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:18:54,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:18:54,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:18:54,429 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-07 01:18:54,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:18:54,430 INFO L85 PathProgramCache]: Analyzing trace with hash 463192434, now seen corresponding path program 1 times [2021-11-07 01:18:54,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:18:54,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1764839301] [2021-11-07 01:18:54,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:18:54,456 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:18:54,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:18:54,459 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:18:54,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:18:59,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:18:59,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 1909 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:18:59,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:19:00,418 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 01:19:00,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-07 01:19:00,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:19:00,713 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:19:01,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:19:01,302 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:19:01,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1764839301] [2021-11-07 01:19:01,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1764839301] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:19:01,303 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:19:01,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-07 01:19:01,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481609602] [2021-11-07 01:19:01,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:19:01,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:19:01,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:19:01,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:19:01,306 INFO L87 Difference]: Start difference. First operand 344 states and 430 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:19:37,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:19:37,923 INFO L93 Difference]: Finished difference Result 1075 states and 1331 transitions. [2021-11-07 01:19:37,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:19:37,925 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-07 01:19:37,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:19:37,930 INFO L225 Difference]: With dead ends: 1075 [2021-11-07 01:19:37,930 INFO L226 Difference]: Without dead ends: 751 [2021-11-07 01:19:37,931 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:19:37,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2021-11-07 01:19:37,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 419. [2021-11-07 01:19:37,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 396 states have (on average 1.3282828282828283) internal successors, (526), 418 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:19:37,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 526 transitions. [2021-11-07 01:19:37,972 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 526 transitions. Word has length 58 [2021-11-07 01:19:37,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:19:37,973 INFO L470 AbstractCegarLoop]: Abstraction has 419 states and 526 transitions. [2021-11-07 01:19:37,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:19:37,973 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 526 transitions. [2021-11-07 01:19:37,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-07 01:19:37,975 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:19:37,976 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:19:38,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:19:38,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:19:38,193 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-07 01:19:38,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:19:38,193 INFO L85 PathProgramCache]: Analyzing trace with hash -908614864, now seen corresponding path program 1 times [2021-11-07 01:19:38,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:19:38,198 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1314813969] [2021-11-07 01:19:38,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:19:38,198 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:19:38,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:19:38,202 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:19:38,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:19:43,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:19:43,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 1906 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 01:19:43,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:19:43,995 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 01:19:43,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-07 01:19:44,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:19:44,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:19:45,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:19:45,433 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:19:45,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1314813969] [2021-11-07 01:19:45,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1314813969] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:19:45,434 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:19:45,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 11 [2021-11-07 01:19:45,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973439558] [2021-11-07 01:19:45,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 01:19:45,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:19:45,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 01:19:45,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-07 01:19:45,437 INFO L87 Difference]: Start difference. First operand 419 states and 526 transitions. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:21:00,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:21:00,177 INFO L93 Difference]: Finished difference Result 1358 states and 1608 transitions. [2021-11-07 01:21:00,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-07 01:21:00,180 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-07 01:21:00,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:21:00,187 INFO L225 Difference]: With dead ends: 1358 [2021-11-07 01:21:00,188 INFO L226 Difference]: Without dead ends: 882 [2021-11-07 01:21:00,189 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2021-11-07 01:21:00,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2021-11-07 01:21:00,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 419. [2021-11-07 01:21:00,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 396 states have (on average 1.2828282828282829) internal successors, (508), 418 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:21:00,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 508 transitions. [2021-11-07 01:21:00,218 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 508 transitions. Word has length 58 [2021-11-07 01:21:00,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:21:00,218 INFO L470 AbstractCegarLoop]: Abstraction has 419 states and 508 transitions. [2021-11-07 01:21:00,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:21:00,219 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 508 transitions. [2021-11-07 01:21:00,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-07 01:21:00,220 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:21:00,220 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:21:00,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:21:00,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:21:00,438 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-07 01:21:00,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:21:00,438 INFO L85 PathProgramCache]: Analyzing trace with hash -619205810, now seen corresponding path program 1 times [2021-11-07 01:21:00,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:21:00,444 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [808704000] [2021-11-07 01:21:00,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:21:00,446 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:21:00,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:21:00,447 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:21:00,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:21:06,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:21:06,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 1924 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:21:06,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:21:06,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:21:06,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:21:06,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:21:06,698 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:21:06,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [808704000] [2021-11-07 01:21:06,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [808704000] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:21:06,699 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:21:06,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:21:06,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440605256] [2021-11-07 01:21:06,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:21:06,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:21:06,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:21:06,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:21:06,701 INFO L87 Difference]: Start difference. First operand 419 states and 508 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:21:11,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:21:11,176 INFO L93 Difference]: Finished difference Result 621 states and 750 transitions. [2021-11-07 01:21:11,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:21:11,176 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-11-07 01:21:11,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:21:11,180 INFO L225 Difference]: With dead ends: 621 [2021-11-07 01:21:11,180 INFO L226 Difference]: Without dead ends: 419 [2021-11-07 01:21:11,181 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:21:11,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2021-11-07 01:21:11,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 419. [2021-11-07 01:21:11,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 396 states have (on average 1.2803030303030303) internal successors, (507), 418 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:21:11,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 507 transitions. [2021-11-07 01:21:11,199 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 507 transitions. Word has length 66 [2021-11-07 01:21:11,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:21:11,199 INFO L470 AbstractCegarLoop]: Abstraction has 419 states and 507 transitions. [2021-11-07 01:21:11,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:21:11,200 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 507 transitions. [2021-11-07 01:21:11,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-07 01:21:11,201 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:21:11,201 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:21:11,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-07 01:21:11,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:21:11,425 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-07 01:21:11,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:21:11,425 INFO L85 PathProgramCache]: Analyzing trace with hash -800005695, now seen corresponding path program 1 times [2021-11-07 01:21:11,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:21:11,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [18133739] [2021-11-07 01:21:11,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:21:11,430 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:21:11,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:21:11,431 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:21:11,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:21:16,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:21:16,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 1921 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:21:17,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:21:17,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:21:17,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:21:17,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:21:17,484 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:21:17,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [18133739] [2021-11-07 01:21:17,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [18133739] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:21:17,484 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:21:17,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:21:17,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040574418] [2021-11-07 01:21:17,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:21:17,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:21:17,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:21:17,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:21:17,486 INFO L87 Difference]: Start difference. First operand 419 states and 507 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:21:17,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:21:17,513 INFO L93 Difference]: Finished difference Result 754 states and 904 transitions. [2021-11-07 01:21:17,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:21:17,516 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-11-07 01:21:17,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:21:17,520 INFO L225 Difference]: With dead ends: 754 [2021-11-07 01:21:17,520 INFO L226 Difference]: Without dead ends: 554 [2021-11-07 01:21:17,521 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:21:17,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2021-11-07 01:21:17,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 419. [2021-11-07 01:21:17,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 396 states have (on average 1.2777777777777777) internal successors, (506), 418 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:21:17,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 506 transitions. [2021-11-07 01:21:17,540 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 506 transitions. Word has length 70 [2021-11-07 01:21:17,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:21:17,541 INFO L470 AbstractCegarLoop]: Abstraction has 419 states and 506 transitions. [2021-11-07 01:21:17,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:21:17,542 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 506 transitions. [2021-11-07 01:21:17,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-07 01:21:17,543 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:21:17,543 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:21:17,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:21:17,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:21:17,767 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-07 01:21:17,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:21:17,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1461613979, now seen corresponding path program 1 times [2021-11-07 01:21:17,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:21:17,774 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1626722220] [2021-11-07 01:21:17,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:21:17,775 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:21:17,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:21:17,776 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:21:17,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:21:23,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:21:23,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 1925 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:21:23,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:21:23,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:21:23,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:21:24,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:21:24,067 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:21:24,067 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1626722220] [2021-11-07 01:21:24,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1626722220] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:21:24,067 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:21:24,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 01:21:24,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800852316] [2021-11-07 01:21:24,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:21:24,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:21:24,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:21:24,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:21:24,070 INFO L87 Difference]: Start difference. First operand 419 states and 506 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:21:24,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:21:24,179 INFO L93 Difference]: Finished difference Result 757 states and 908 transitions. [2021-11-07 01:21:24,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:21:24,181 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-11-07 01:21:24,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:21:24,185 INFO L225 Difference]: With dead ends: 757 [2021-11-07 01:21:24,185 INFO L226 Difference]: Without dead ends: 557 [2021-11-07 01:21:24,186 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:21:24,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2021-11-07 01:21:24,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 422. [2021-11-07 01:21:24,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 399 states have (on average 1.2756892230576442) internal successors, (509), 421 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:21:24,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 509 transitions. [2021-11-07 01:21:24,205 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 509 transitions. Word has length 71 [2021-11-07 01:21:24,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:21:24,206 INFO L470 AbstractCegarLoop]: Abstraction has 422 states and 509 transitions. [2021-11-07 01:21:24,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:21:24,206 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 509 transitions. [2021-11-07 01:21:24,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-07 01:21:24,208 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:21:24,208 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:21:24,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 01:21:24,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:21:24,431 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-07 01:21:24,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:21:24,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1919673891, now seen corresponding path program 1 times [2021-11-07 01:21:24,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:21:24,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1156597108] [2021-11-07 01:21:24,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:21:24,436 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:21:24,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:21:24,437 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:21:24,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 01:21:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:21:30,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 1937 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:21:30,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:21:30,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:21:30,400 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:21:30,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:21:30,628 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:21:30,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1156597108] [2021-11-07 01:21:30,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1156597108] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:21:30,629 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:21:30,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-07 01:21:30,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100514060] [2021-11-07 01:21:30,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:21:30,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:21:30,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:21:30,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:21:30,631 INFO L87 Difference]: Start difference. First operand 422 states and 509 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:05,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:05,783 INFO L93 Difference]: Finished difference Result 703 states and 835 transitions. [2021-11-07 01:22:05,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 01:22:05,783 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-11-07 01:22:05,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:05,788 INFO L225 Difference]: With dead ends: 703 [2021-11-07 01:22:05,788 INFO L226 Difference]: Without dead ends: 682 [2021-11-07 01:22:05,789 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2021-11-07 01:22:05,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2021-11-07 01:22:05,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 442. [2021-11-07 01:22:05,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 419 states have (on average 1.2577565632458234) internal successors, (527), 441 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:05,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 527 transitions. [2021-11-07 01:22:05,811 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 527 transitions. Word has length 72 [2021-11-07 01:22:05,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:05,812 INFO L470 AbstractCegarLoop]: Abstraction has 442 states and 527 transitions. [2021-11-07 01:22:05,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:05,813 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 527 transitions. [2021-11-07 01:22:05,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-07 01:22:05,814 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:05,814 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:22:05,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:06,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:06,029 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-07 01:22:06,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:06,029 INFO L85 PathProgramCache]: Analyzing trace with hash -2135238441, now seen corresponding path program 1 times [2021-11-07 01:22:06,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:06,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1157071050] [2021-11-07 01:22:06,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:06,035 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:06,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:06,036 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:06,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 01:22:11,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:11,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 1935 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:22:11,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:11,751 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:11,751 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:12,336 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:12,336 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:12,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1157071050] [2021-11-07 01:22:12,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1157071050] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:22:12,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [924182547] [2021-11-07 01:22:12,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:12,336 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:22:12,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:22:12,338 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:22:12,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-11-07 01:22:14,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:14,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 1935 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:22:14,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:15,157 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 01:22:15,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:15,760 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 01:22:15,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [924182547] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:15,761 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:22:15,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6, 6] total 13 [2021-11-07 01:22:15,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798699227] [2021-11-07 01:22:15,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:22:15,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:15,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:22:15,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:22:15,763 INFO L87 Difference]: Start difference. First operand 442 states and 527 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:26,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:26,354 INFO L93 Difference]: Finished difference Result 752 states and 886 transitions. [2021-11-07 01:22:26,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 01:22:26,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-11-07 01:22:26,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:26,358 INFO L225 Difference]: With dead ends: 752 [2021-11-07 01:22:26,358 INFO L226 Difference]: Without dead ends: 577 [2021-11-07 01:22:26,359 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2021-11-07 01:22:26,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2021-11-07 01:22:26,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 442. [2021-11-07 01:22:26,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 419 states have (on average 1.2553699284009547) internal successors, (526), 441 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:26,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 526 transitions. [2021-11-07 01:22:26,381 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 526 transitions. Word has length 75 [2021-11-07 01:22:26,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:26,382 INFO L470 AbstractCegarLoop]: Abstraction has 442 states and 526 transitions. [2021-11-07 01:22:26,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:26,383 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 526 transitions. [2021-11-07 01:22:26,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-07 01:22:26,384 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:26,384 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:22:26,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:26,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:26,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:26,794 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-07 01:22:26,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:26,795 INFO L85 PathProgramCache]: Analyzing trace with hash 971653275, now seen corresponding path program 1 times [2021-11-07 01:22:26,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:26,799 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [692364165] [2021-11-07 01:22:26,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:26,800 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:26,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:26,800 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:26,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b867c433-8bf2-4fbe-9b84-9daf606e1b5b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-07 01:23:07,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:23:08,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 1940 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-07 01:23:08,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:23:08,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 9 [2021-11-07 01:23:09,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:09,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:09,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:09,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:09,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:09,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:09,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:09,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:09,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:09,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:09,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:09,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:09,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:09,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:09,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:09,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:09,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:09,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:09,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:09,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:09,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:09,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:09,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:10,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,133 WARN L207 SmtUtils]: Spent 11.79 s on a formula simplification. DAG size of input: 1017 DAG size of output: 124 [2021-11-07 01:23:22,136 INFO L354 Elim1Store]: treesize reduction 14790, result has 2.2 percent of original size [2021-11-07 01:23:22,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 144 case distinctions, treesize of input 1179 treesize of output 534 [2021-11-07 01:23:22,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:22,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:44,148 WARN L207 SmtUtils]: Spent 21.35 s on a formula simplification. DAG size of input: 1969 DAG size of output: 156 [2021-11-07 01:23:44,149 INFO L354 Elim1Store]: treesize reduction 21986, result has 1.8 percent of original size [2021-11-07 01:23:44,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 24 select indices, 24 select index equivalence classes, 120 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 308 case distinctions, treesize of input 1192 treesize of output 571 [2021-11-07 01:23:49,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:23:49,986 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:23:50,733 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:50,736 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1162 [2021-11-07 01:23:50,745 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:50,747 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8746 [2021-11-07 01:23:54,223 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_2 (_ BitVec 8)) (v_DerPreprocessor_1 (_ BitVec 8)) (|ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset| (_ BitVec 64))) (not (= (_ bv0 64) (let ((.cse1 (bvadd |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.offset| (_ bv23 64))) (.cse2 (bvadd |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.offset| (_ bv22 64))) (.cse3 (bvadd |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.offset| (_ bv21 64))) (.cse4 (bvadd (_ bv20 64) |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.offset|)) (.cse5 (bvadd |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.offset| (_ bv19 64))) (.cse6 (bvadd (_ bv18 64) |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.offset|)) (.cse7 (bvadd |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.offset| (_ bv17 64))) (.cse8 (bvadd |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.offset| (_ bv16 64)))) (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.base| (store (let ((.cse10 (select |c_#memory_int| |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.base|))) (let ((.cse11 (concat (concat (concat (concat (concat (concat (concat (select .cse10 .cse1) (select .cse10 .cse2)) (select .cse10 .cse3)) (select .cse10 .cse4)) (select .cse10 .cse5)) (select .cse10 .cse6)) (select .cse10 .cse7)) (select .cse10 .cse8)))) (store (store (store (store (store (store (store (store (store (let ((.cse9 (concat (concat (concat (concat (concat (concat (concat (select .cse10 (bvadd |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.offset| (_ bv7 64))) (select .cse10 (bvadd |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.offset| (_ bv6 64)))) (select .cse10 (bvadd |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.offset| (_ bv5 64)))) (select .cse10 (bvadd |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.offset| (_ bv4 64)))) (select .cse10 (bvadd (_ bv3 64) |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.offset|))) (select .cse10 (bvadd |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.offset| (_ bv2 64)))) (select .cse10 (bvadd |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.offset| (_ bv1 64)))) (select .cse10 |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.offset|)))) (store (store (store (store (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.base|) |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset| ((_ extract 7 0) .cse9)) (bvadd (_ bv1 64) |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset|) ((_ extract 15 8) .cse9)) (bvadd (_ bv2 64) |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset|) ((_ extract 23 16) .cse9)) (bvadd (_ bv3 64) |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset|) ((_ extract 31 24) .cse9)) (bvadd (_ bv4 64) |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset|) ((_ extract 39 32) .cse9)) (bvadd |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset| (_ bv5 64)) ((_ extract 47 40) .cse9)) (bvadd |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset| (_ bv6 64)) ((_ extract 55 48) .cse9)) (bvadd |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset| (_ bv7 64)) ((_ extract 63 56) .cse9))) (bvadd (_ bv8 64) |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset|) v_DerPreprocessor_1) (bvadd |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset| (_ bv16 64)) ((_ extract 7 0) .cse11)) (bvadd (_ bv17 64) |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset|) ((_ extract 15 8) .cse11)) (bvadd (_ bv18 64) |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset|) ((_ extract 23 16) .cse11)) (bvadd (_ bv19 64) |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset|) ((_ extract 31 24) .cse11)) (bvadd (_ bv20 64) |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset|) ((_ extract 39 32) .cse11)) (bvadd (_ bv21 64) |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset|) ((_ extract 47 40) .cse11)) (bvadd |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset| (_ bv22 64)) ((_ extract 55 48) .cse11)) (bvadd |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset| (_ bv23 64)) ((_ extract 63 56) .cse11)))) (bvadd (_ bv24 64) |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset|) v_DerPreprocessor_2)) |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.base|))) (concat (concat (concat (concat (concat (concat (concat (select .cse0 .cse1) (select .cse0 .cse2)) (select .cse0 .cse3)) (select .cse0 .cse4)) (select .cse0 .cse5)) (select .cse0 .cse6)) (select .cse0 .cse7)) (select .cse0 .cse8))))))) is different from false