./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_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_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/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_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/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_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/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 13ec24500153ff48401c44b6cbf6e64bbffda498093f21927cfcfb52ad2376ab --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:52:21,691 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:52:21,694 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:52:21,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:52:21,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:52:21,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:52:21,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:52:21,751 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:52:21,754 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:52:21,755 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:52:21,756 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:52:21,758 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:52:21,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:52:21,760 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:52:21,762 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:52:21,765 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:52:21,766 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:52:21,768 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:52:21,771 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:52:21,774 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:52:21,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:52:21,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:52:21,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:52:21,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:52:21,786 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:52:21,786 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:52:21,787 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:52:21,788 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:52:21,789 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:52:21,790 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:52:21,791 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:52:21,792 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:52:21,793 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:52:21,794 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:52:21,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:52:21,796 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:52:21,797 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:52:21,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:52:21,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:52:21,799 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:52:21,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:52:21,802 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:52:21,832 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:52:21,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:52:21,834 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:52:21,834 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:52:21,835 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:52:21,835 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:52:21,835 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:52:21,836 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:52:21,836 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:52:21,836 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:52:21,836 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:52:21,837 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:52:21,837 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:52:21,837 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:52:21,838 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:52:21,838 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:52:21,839 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:52:21,839 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:52:21,839 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:52:21,840 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:52:21,840 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:52:21,840 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:52:21,840 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:52:21,841 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:52:21,841 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:52:21,841 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:52:21,842 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:52:21,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:52:21,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:52:21,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:52:21,843 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:52:21,843 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:52:21,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:52:21,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:52:21,844 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:52:21,844 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:52:21,844 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_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13ec24500153ff48401c44b6cbf6e64bbffda498093f21927cfcfb52ad2376ab [2021-11-07 01:52:22,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:52:22,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:52:22,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:52:22,184 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:52:22,185 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:52:22,186 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i [2021-11-07 01:52:22,257 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/data/1510a75be/3fcd63a5dc554e6fb7befd65422aed03/FLAGb3147852e [2021-11-07 01:52:23,166 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:52:23,167 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i [2021-11-07 01:52:23,209 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/data/1510a75be/3fcd63a5dc554e6fb7befd65422aed03/FLAGb3147852e [2021-11-07 01:52:23,662 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/data/1510a75be/3fcd63a5dc554e6fb7befd65422aed03 [2021-11-07 01:52:23,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:52:23,668 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:52:23,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:52:23,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:52:23,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:52:23,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:52:23" (1/1) ... [2021-11-07 01:52:23,676 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@142aab3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:52:23, skipping insertion in model container [2021-11-07 01:52:23,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:52:23" (1/1) ... [2021-11-07 01:52:23,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:52:23,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:52:24,116 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_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i[4498,4511] [2021-11-07 01:52:24,124 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_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i[4558,4571] [2021-11-07 01:52:24,153 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:52:24,161 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:52:25,397 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:25,398 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:25,399 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:25,400 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:25,401 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:25,418 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:25,419 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:25,422 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:25,422 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:25,919 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:52:25,920 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:52:25,921 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:52:25,923 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:52:25,925 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:52:25,926 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:52:25,927 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:52:25,928 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:52:25,928 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:52:25,929 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:52:26,199 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:52:26,428 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:26,429 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:26,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:52:26,574 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 01:52:26,575 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@27825d59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:52:26, skipping insertion in model container [2021-11-07 01:52:26,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:52:26,577 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:52:26,581 INFO L168 Benchmark]: Toolchain (without parser) took 2910.38 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 55.8 MB in the beginning and 72.2 MB in the end (delta: -16.4 MB). Peak memory consumption was 30.8 MB. Max. memory is 16.1 GB. [2021-11-07 01:52:26,582 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 98.6 MB. Free memory was 51.7 MB in the beginning and 51.6 MB in the end (delta: 50.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:52:26,584 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2907.43 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 55.7 MB in the beginning and 72.2 MB in the end (delta: -16.6 MB). Peak memory consumption was 30.8 MB. Max. memory is 16.1 GB. [2021-11-07 01:52:26,587 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 98.6 MB. Free memory was 51.7 MB in the beginning and 51.6 MB in the end (delta: 50.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2907.43 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 55.7 MB in the beginning and 72.2 MB in the end (delta: -16.6 MB). Peak memory consumption was 30.8 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_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/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_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/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_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/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 13ec24500153ff48401c44b6cbf6e64bbffda498093f21927cfcfb52ad2376ab --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:52:29,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:52:29,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:52:29,191 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:52:29,192 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:52:29,194 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:52:29,196 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:52:29,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:52:29,201 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:52:29,202 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:52:29,203 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:52:29,205 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:52:29,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:52:29,207 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:52:29,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:52:29,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:52:29,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:52:29,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:52:29,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:52:29,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:52:29,221 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:52:29,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:52:29,224 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:52:29,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:52:29,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:52:29,230 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:52:29,231 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:52:29,232 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:52:29,233 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:52:29,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:52:29,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:52:29,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:52:29,237 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:52:29,238 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:52:29,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:52:29,240 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:52:29,247 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:52:29,247 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:52:29,248 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:52:29,249 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:52:29,250 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:52:29,251 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:52:29,286 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:52:29,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:52:29,288 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:52:29,288 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:52:29,288 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:52:29,289 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:52:29,289 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:52:29,289 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:52:29,289 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:52:29,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:52:29,291 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:52:29,291 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:52:29,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:52:29,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:52:29,291 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:52:29,292 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:52:29,292 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:52:29,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:52:29,292 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:52:29,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:52:29,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:52:29,293 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:52:29,293 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:52:29,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:52:29,294 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:52:29,294 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:52:29,294 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:52:29,295 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:52:29,295 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:52:29,295 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:52:29,295 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:52:29,295 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:52:29,296 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_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13ec24500153ff48401c44b6cbf6e64bbffda498093f21927cfcfb52ad2376ab [2021-11-07 01:52:29,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:52:29,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:52:29,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:52:29,759 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:52:29,760 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:52:29,761 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i [2021-11-07 01:52:29,859 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/data/7bc09d98b/4f50e02ccd234836920e8557f47790ab/FLAG4bef96972 [2021-11-07 01:52:30,855 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:52:30,855 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i [2021-11-07 01:52:30,898 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/data/7bc09d98b/4f50e02ccd234836920e8557f47790ab/FLAG4bef96972 [2021-11-07 01:52:31,267 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/data/7bc09d98b/4f50e02ccd234836920e8557f47790ab [2021-11-07 01:52:31,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:52:31,271 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:52:31,275 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:52:31,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:52:31,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:52:31,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:52:31" (1/1) ... [2021-11-07 01:52:31,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f854368 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:52:31, skipping insertion in model container [2021-11-07 01:52:31,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:52:31" (1/1) ... [2021-11-07 01:52:31,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:52:31,443 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:52:31,791 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_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i[4498,4511] [2021-11-07 01:52:31,799 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_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i[4558,4571] [2021-11-07 01:52:31,826 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:52:31,834 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:52:33,102 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:33,104 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:33,106 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:33,107 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:33,109 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:33,145 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:33,150 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:33,152 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:33,160 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:33,684 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:52:33,685 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:52:33,686 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:52:33,687 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:52:33,689 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:52:33,690 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:52:33,690 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:52:33,691 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:52:33,692 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:52:33,692 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:52:33,894 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:52:33,973 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:33,974 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:34,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:52:34,109 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:52:34,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:52:34,171 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_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i[4498,4511] [2021-11-07 01:52:34,172 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_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i[4558,4571] [2021-11-07 01:52:34,174 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:52:34,175 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:52:34,226 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:34,228 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:34,228 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:34,230 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:34,230 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:34,243 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:34,244 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:34,247 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:34,248 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:34,310 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:52:34,311 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:52:34,311 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:52:34,313 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:52:34,314 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:52:34,315 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:52:34,316 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:52:34,316 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:52:34,317 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:52:34,318 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:52:34,383 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:52:34,468 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:34,469 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:34,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:52:34,557 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:52:34,583 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_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i[4498,4511] [2021-11-07 01:52:34,583 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_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i[4558,4571] [2021-11-07 01:52:34,585 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:52:34,586 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:52:34,665 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:34,666 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:34,666 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:34,667 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:34,667 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:34,671 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:34,673 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:34,674 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:34,675 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:34,702 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:52:34,703 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:52:34,704 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:52:34,704 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:52:34,705 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:52:34,706 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:52:34,706 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:52:34,706 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:52:34,707 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:52:34,708 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:52:34,732 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:52:34,815 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:34,815 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:52:34,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:52:35,155 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:52:35,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:52:35 WrapperNode [2021-11-07 01:52:35,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:52:35,157 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:52:35,157 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:52:35,157 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:52:35,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:52:35" (1/1) ... [2021-11-07 01:52:35,281 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:52:35" (1/1) ... [2021-11-07 01:52:35,401 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:52:35,402 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:52:35,402 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:52:35,403 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:52:35,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:52:35" (1/1) ... [2021-11-07 01:52:35,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:52:35" (1/1) ... [2021-11-07 01:52:35,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:52:35" (1/1) ... [2021-11-07 01:52:35,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:52:35" (1/1) ... [2021-11-07 01:52:35,505 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:52:35" (1/1) ... [2021-11-07 01:52:35,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:52:35" (1/1) ... [2021-11-07 01:52:35,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:52:35" (1/1) ... [2021-11-07 01:52:35,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:52:35,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:52:35,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:52:35,579 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:52:35,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:52:35" (1/1) ... [2021-11-07 01:52:35,588 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:52:35,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:52:35,616 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:52:35,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:52:35,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:52:35,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:52:35,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:52:35,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:52:35,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:52:35,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:52:35,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:52:35,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:52:35,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:52:35,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:52:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:52:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:52:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:52:35,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:52:35,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:52:50,179 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:52:50,180 INFO L299 CfgBuilder]: Removed 74 assume(true) statements. [2021-11-07 01:52:50,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:52:50 BoogieIcfgContainer [2021-11-07 01:52:50,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:52:50,191 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:52:50,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:52:50,197 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:52:50,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:52:31" (1/3) ... [2021-11-07 01:52:50,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea51cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:52:50, skipping insertion in model container [2021-11-07 01:52:50,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:52:35" (2/3) ... [2021-11-07 01:52:50,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea51cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:52:50, skipping insertion in model container [2021-11-07 01:52:50,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:52:50" (3/3) ... [2021-11-07 01:52:50,205 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_from_buf_harness.i [2021-11-07 01:52:50,215 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:52:50,216 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-07 01:52:50,297 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:52:50,306 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 01:52:50,306 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-07 01:52:50,333 INFO L276 IsEmpty]: Start isEmpty. Operand has 149 states, 137 states have (on average 1.4817518248175183) internal successors, (203), 148 states have internal predecessors, (203), 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 01:52:50,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-07 01:52:50,341 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:52:50,342 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] [2021-11-07 01:52:50,343 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:52:50,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:52:50,350 INFO L85 PathProgramCache]: Analyzing trace with hash -324613171, now seen corresponding path program 1 times [2021-11-07 01:52:50,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:52:50,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1987158442] [2021-11-07 01:52:50,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:52:50,378 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:52:50,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:52:50,381 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:52:50,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:52:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:52:54,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 1808 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:52:54,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:52:54,740 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 01:52:54,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:52:54,845 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 01:52:54,846 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:52:54,846 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1987158442] [2021-11-07 01:52:54,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1987158442] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:52:54,850 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:52:54,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:52:54,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953367918] [2021-11-07 01:52:54,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:52:54,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:52:54,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:52:54,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:52:54,887 INFO L87 Difference]: Start difference. First operand has 149 states, 137 states have (on average 1.4817518248175183) internal successors, (203), 148 states have internal predecessors, (203), 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 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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 01:52:54,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:52:54,951 INFO L93 Difference]: Finished difference Result 294 states and 401 transitions. [2021-11-07 01:52:54,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:52:54,953 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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 29 [2021-11-07 01:52:54,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:52:54,970 INFO L225 Difference]: With dead ends: 294 [2021-11-07 01:52:54,971 INFO L226 Difference]: Without dead ends: 142 [2021-11-07 01:52:54,977 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 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 01:52:54,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-11-07 01:52:55,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2021-11-07 01:52:55,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 131 states have (on average 1.3511450381679388) internal successors, (177), 141 states have internal predecessors, (177), 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 01:52:55,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 177 transitions. [2021-11-07 01:52:55,044 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 177 transitions. Word has length 29 [2021-11-07 01:52:55,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:52:55,044 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 177 transitions. [2021-11-07 01:52:55,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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 01:52:55,045 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 177 transitions. [2021-11-07 01:52:55,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-07 01:52:55,047 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:52:55,048 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] [2021-11-07 01:52:55,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:52:55,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:52:55,249 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:52:55,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:52:55,250 INFO L85 PathProgramCache]: Analyzing trace with hash 924018381, now seen corresponding path program 1 times [2021-11-07 01:52:55,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:52:55,254 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119418915] [2021-11-07 01:52:55,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:52:55,254 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:52:55,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:52:55,255 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:52:55,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:52:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:52:59,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 1808 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:52:59,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:52:59,873 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 01:52:59,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:53:00,033 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 01:53:00,034 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:53:00,034 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [119418915] [2021-11-07 01:53:00,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [119418915] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:53:00,034 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:53:00,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:53:00,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20624618] [2021-11-07 01:53:00,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:53:00,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:53:00,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:53:00,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:53:00,037 INFO L87 Difference]: Start difference. First operand 142 states and 177 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 01:53:00,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:53:00,283 INFO L93 Difference]: Finished difference Result 258 states and 320 transitions. [2021-11-07 01:53:00,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:53:00,286 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 29 [2021-11-07 01:53:00,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:53:00,287 INFO L225 Difference]: With dead ends: 258 [2021-11-07 01:53:00,288 INFO L226 Difference]: Without dead ends: 142 [2021-11-07 01:53:00,289 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 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 01:53:00,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-11-07 01:53:00,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2021-11-07 01:53:00,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 131 states have (on average 1.3282442748091603) internal successors, (174), 141 states have internal predecessors, (174), 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 01:53:00,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 174 transitions. [2021-11-07 01:53:00,302 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 174 transitions. Word has length 29 [2021-11-07 01:53:00,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:53:00,303 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 174 transitions. [2021-11-07 01:53:00,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 01:53:00,303 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 174 transitions. [2021-11-07 01:53:00,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-07 01:53:00,305 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:53:00,305 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] [2021-11-07 01:53:00,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:53:00,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:53:00,506 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:53:00,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:53:00,507 INFO L85 PathProgramCache]: Analyzing trace with hash -730987477, now seen corresponding path program 1 times [2021-11-07 01:53:00,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:53:00,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [357105918] [2021-11-07 01:53:00,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:53:00,511 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:53:00,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:53:00,512 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:53:00,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:53:04,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:53:04,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 1831 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:53:05,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:53:05,175 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 01:53:05,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:53:05,320 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 01:53:05,321 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:53:05,321 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [357105918] [2021-11-07 01:53:05,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [357105918] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:53:05,321 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:53:05,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:53:05,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155173314] [2021-11-07 01:53:05,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:53:05,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:53:05,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:53:05,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:53:05,324 INFO L87 Difference]: Start difference. First operand 142 states and 174 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 01:53:05,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:53:05,542 INFO L93 Difference]: Finished difference Result 289 states and 358 transitions. [2021-11-07 01:53:05,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:53:05,543 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 41 [2021-11-07 01:53:05,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:53:05,545 INFO L225 Difference]: With dead ends: 289 [2021-11-07 01:53:05,545 INFO L226 Difference]: Without dead ends: 172 [2021-11-07 01:53:05,546 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 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 01:53:05,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-11-07 01:53:05,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 148. [2021-11-07 01:53:05,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 137 states have (on average 1.313868613138686) internal successors, (180), 147 states have internal predecessors, (180), 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 01:53:05,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 180 transitions. [2021-11-07 01:53:05,559 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 180 transitions. Word has length 41 [2021-11-07 01:53:05,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:53:05,560 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 180 transitions. [2021-11-07 01:53:05,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 01:53:05,560 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 180 transitions. [2021-11-07 01:53:05,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-07 01:53:05,562 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:53:05,562 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] [2021-11-07 01:53:05,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:53:05,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:53:05,770 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:53:05,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:53:05,771 INFO L85 PathProgramCache]: Analyzing trace with hash -793027091, now seen corresponding path program 1 times [2021-11-07 01:53:05,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:53:05,775 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [246124853] [2021-11-07 01:53:05,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:53:05,775 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:53:05,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:53:05,776 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:53:05,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:53:10,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:53:10,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 1834 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 01:53:10,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:53:10,575 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 01:53:10,959 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 01:53:10,959 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:53:11,260 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 01:53:11,574 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 01:53:11,575 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:53:11,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [246124853] [2021-11-07 01:53:11,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [246124853] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:53:11,581 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:53:11,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 13 [2021-11-07 01:53:11,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561897898] [2021-11-07 01:53:11,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 01:53:11,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:53:11,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 01:53:11,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:53:11,586 INFO L87 Difference]: Start difference. First operand 148 states and 180 transitions. Second operand has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 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 01:53:17,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:53:17,861 INFO L93 Difference]: Finished difference Result 305 states and 374 transitions. [2021-11-07 01:53:17,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 01:53:17,862 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 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 41 [2021-11-07 01:53:17,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:53:17,864 INFO L225 Difference]: With dead ends: 305 [2021-11-07 01:53:17,864 INFO L226 Difference]: Without dead ends: 184 [2021-11-07 01:53:17,865 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2021-11-07 01:53:17,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2021-11-07 01:53:17,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 151. [2021-11-07 01:53:17,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 140 states have (on average 1.3142857142857143) internal successors, (184), 150 states have internal predecessors, (184), 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 01:53:17,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 184 transitions. [2021-11-07 01:53:17,879 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 184 transitions. Word has length 41 [2021-11-07 01:53:17,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:53:17,879 INFO L470 AbstractCegarLoop]: Abstraction has 151 states and 184 transitions. [2021-11-07 01:53:17,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 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 01:53:17,880 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2021-11-07 01:53:17,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-07 01:53:17,882 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:53:17,882 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] [2021-11-07 01:53:17,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:53:18,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:53:18,086 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:53:18,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:53:18,086 INFO L85 PathProgramCache]: Analyzing trace with hash 131563474, now seen corresponding path program 1 times [2021-11-07 01:53:18,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:53:18,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [328705729] [2021-11-07 01:53:18,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:53:18,091 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:53:18,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:53:18,094 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:53:18,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:53:22,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:53:22,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 1852 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:53:22,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:53:22,914 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 01:53:22,914 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 01:53:23,143 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 01:53:23,143 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:53:23,709 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 01:53:23,710 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:53:23,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [328705729] [2021-11-07 01:53:23,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [328705729] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:53:23,710 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:53:23,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-07 01:53:23,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773801730] [2021-11-07 01:53:23,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:53:23,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:53:23,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:53:23,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:53:23,713 INFO L87 Difference]: Start difference. First operand 151 states and 184 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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 01:53:32,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:53:32,297 INFO L93 Difference]: Finished difference Result 418 states and 509 transitions. [2021-11-07 01:53:32,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:53:32,301 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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 48 [2021-11-07 01:53:32,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:53:32,303 INFO L225 Difference]: With dead ends: 418 [2021-11-07 01:53:32,303 INFO L226 Difference]: Without dead ends: 287 [2021-11-07 01:53:32,304 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 89 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:53:32,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2021-11-07 01:53:32,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 172. [2021-11-07 01:53:32,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 161 states have (on average 1.31055900621118) internal successors, (211), 171 states have internal predecessors, (211), 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 01:53:32,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 211 transitions. [2021-11-07 01:53:32,317 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 211 transitions. Word has length 48 [2021-11-07 01:53:32,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:53:32,318 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 211 transitions. [2021-11-07 01:53:32,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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 01:53:32,318 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 211 transitions. [2021-11-07 01:53:32,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-07 01:53:32,320 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:53:32,321 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] [2021-11-07 01:53:32,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:53:32,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:53:32,546 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:53:32,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:53:32,546 INFO L85 PathProgramCache]: Analyzing trace with hash 154195728, now seen corresponding path program 1 times [2021-11-07 01:53:32,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:53:32,551 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [350881624] [2021-11-07 01:53:32,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:53:32,551 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:53:32,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:53:32,553 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:53:32,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:53:36,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:53:37,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 1849 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 01:53:37,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:53:37,398 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 01:53:37,399 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 01:53:37,856 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 01:53:37,857 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:53:38,408 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 01:53:38,408 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:53:38,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [350881624] [2021-11-07 01:53:38,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [350881624] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:53:38,409 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:53:38,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 11 [2021-11-07 01:53:38,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280160114] [2021-11-07 01:53:38,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 01:53:38,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:53:38,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 01:53:38,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-07 01:53:38,411 INFO L87 Difference]: Start difference. First operand 172 states and 211 transitions. Second operand has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 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 01:53:55,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:53:55,379 INFO L93 Difference]: Finished difference Result 551 states and 650 transitions. [2021-11-07 01:53:55,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-07 01:53:55,382 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 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 48 [2021-11-07 01:53:55,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:53:55,385 INFO L225 Difference]: With dead ends: 551 [2021-11-07 01:53:55,385 INFO L226 Difference]: Without dead ends: 362 [2021-11-07 01:53:55,386 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 84 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2021-11-07 01:53:55,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2021-11-07 01:53:55,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 164. [2021-11-07 01:53:55,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 153 states have (on average 1.261437908496732) internal successors, (193), 163 states have internal predecessors, (193), 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 01:53:55,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 193 transitions. [2021-11-07 01:53:55,396 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 193 transitions. Word has length 48 [2021-11-07 01:53:55,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:53:55,397 INFO L470 AbstractCegarLoop]: Abstraction has 164 states and 193 transitions. [2021-11-07 01:53:55,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 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 01:53:55,397 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 193 transitions. [2021-11-07 01:53:55,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-07 01:53:55,401 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:53:55,401 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] [2021-11-07 01:53:55,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:53:55,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:53:55,618 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:53:55,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:53:55,618 INFO L85 PathProgramCache]: Analyzing trace with hash -937056135, now seen corresponding path program 1 times [2021-11-07 01:53:55,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:53:55,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1607721446] [2021-11-07 01:53:55,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:53:55,622 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:53:55,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:53:55,624 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:53:55,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de13fc31-19d0-4ed3-ba8a-bbb390ea1e53/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:54:00,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:54:00,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 1854 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-07 01:54:00,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:54:00,965 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:54:00,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 99 treesize of output 35 [2021-11-07 01:54:01,169 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 01:54:01,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:54:12,627 WARN L207 SmtUtils]: Spent 10.80 s on a formula simplification. DAG size of input: 523 DAG size of output: 269 [2021-11-07 01:54:12,633 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-07 01:54:12,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 129 treesize of output 772