./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_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_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/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_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/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_613edb57-e096-4b26-a2d4-7dd92ded4bda/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 7a14ff88669e01083ca46db0c80d319fe5a2f969bf71d428fc27ed5e7149831c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:42:43,613 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:42:43,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:42:43,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:42:43,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:42:43,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:42:43,661 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:42:43,663 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:42:43,666 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:42:43,667 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:42:43,668 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:42:43,669 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:42:43,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:42:43,671 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:42:43,673 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:42:43,674 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:42:43,676 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:42:43,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:42:43,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:42:43,681 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:42:43,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:42:43,685 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:42:43,686 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:42:43,687 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:42:43,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:42:43,691 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:42:43,691 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:42:43,692 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:42:43,693 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:42:43,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:42:43,695 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:42:43,696 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:42:43,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:42:43,697 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:42:43,699 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:42:43,699 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:42:43,700 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:42:43,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:42:43,701 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:42:43,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:42:43,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:42:43,703 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:42:43,725 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:42:43,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:42:43,726 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:42:43,727 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:42:43,727 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:42:43,727 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:42:43,727 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:42:43,727 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:42:43,728 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:42:43,728 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:42:43,728 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:42:43,728 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:42:43,728 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:42:43,728 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:42:43,729 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:42:43,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:42:43,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:42:43,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:42:43,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:42:43,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:42:43,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:42:43,730 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:42:43,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:42:43,731 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:42:43,731 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:42:43,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:42:43,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:42:43,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:42:43,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:42:43,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:42:43,732 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:42:43,732 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:42:43,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:42:43,733 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:42:43,733 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:42:43,733 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:42:43,733 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_613edb57-e096-4b26-a2d4-7dd92ded4bda/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a14ff88669e01083ca46db0c80d319fe5a2f969bf71d428fc27ed5e7149831c [2021-11-07 01:42:44,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:42:44,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:42:44,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:42:44,065 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:42:44,066 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:42:44,067 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i [2021-11-07 01:42:44,124 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/data/87cca4068/220840a5aadc49c8bd3b014788dd39c3/FLAGc84803308 [2021-11-07 01:42:45,014 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:42:45,015 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i [2021-11-07 01:42:45,060 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/data/87cca4068/220840a5aadc49c8bd3b014788dd39c3/FLAGc84803308 [2021-11-07 01:42:45,460 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/data/87cca4068/220840a5aadc49c8bd3b014788dd39c3 [2021-11-07 01:42:45,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:42:45,464 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:42:45,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:42:45,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:42:45,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:42:45,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:42:45" (1/1) ... [2021-11-07 01:42:45,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c6b9be0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:45, skipping insertion in model container [2021-11-07 01:42:45,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:42:45" (1/1) ... [2021-11-07 01:42:45,478 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:42:45,581 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:42:45,885 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_613edb57-e096-4b26-a2d4-7dd92ded4bda/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i[4510,4523] [2021-11-07 01:42:45,892 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_613edb57-e096-4b26-a2d4-7dd92ded4bda/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i[4570,4583] [2021-11-07 01:42:45,918 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:42:45,924 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:42:46,867 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:46,868 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:46,868 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:46,869 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:46,871 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:46,886 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:46,887 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:46,889 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:46,890 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:47,361 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:42:47,362 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:42:47,364 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:42:47,365 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:42:47,367 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:42:47,368 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:42:47,369 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:42:47,370 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:42:47,371 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:42:47,403 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:42:47,642 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:42:47,796 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:47,797 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:47,908 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:42:47,994 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 01:42:47,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1fbc8809 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:47, skipping insertion in model container [2021-11-07 01:42:47,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:42:47,997 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:42:48,000 INFO L168 Benchmark]: Toolchain (without parser) took 2534.30 ms. Allocated memory was 98.6 MB in the beginning and 136.3 MB in the end (delta: 37.7 MB). Free memory was 68.5 MB in the beginning and 81.8 MB in the end (delta: -13.3 MB). Peak memory consumption was 32.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:42:48,001 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 98.6 MB. Free memory is still 73.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:42:48,003 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2531.61 ms. Allocated memory was 98.6 MB in the beginning and 136.3 MB in the end (delta: 37.7 MB). Free memory was 68.1 MB in the beginning and 81.8 MB in the end (delta: -13.6 MB). Peak memory consumption was 32.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:42:48,007 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 98.6 MB. Free memory is still 73.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2531.61 ms. Allocated memory was 98.6 MB in the beginning and 136.3 MB in the end (delta: 37.7 MB). Free memory was 68.1 MB in the beginning and 81.8 MB in the end (delta: -13.6 MB). Peak memory consumption was 32.5 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_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/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_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/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_613edb57-e096-4b26-a2d4-7dd92ded4bda/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 7a14ff88669e01083ca46db0c80d319fe5a2f969bf71d428fc27ed5e7149831c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:42:50,392 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:42:50,395 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:42:50,426 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:42:50,427 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:42:50,428 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:42:50,430 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:42:50,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:42:50,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:42:50,437 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:42:50,438 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:42:50,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:42:50,440 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:42:50,442 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:42:50,444 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:42:50,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:42:50,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:42:50,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:42:50,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:42:50,453 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:42:50,455 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:42:50,456 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:42:50,458 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:42:50,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:42:50,463 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:42:50,464 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:42:50,464 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:42:50,465 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:42:50,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:42:50,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:42:50,468 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:42:50,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:42:50,471 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:42:50,472 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:42:50,473 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:42:50,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:42:50,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:42:50,475 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:42:50,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:42:50,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:42:50,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:42:50,485 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:42:50,516 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:42:50,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:42:50,518 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:42:50,518 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:42:50,518 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:42:50,518 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:42:50,519 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:42:50,519 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:42:50,519 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:42:50,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:42:50,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:42:50,521 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:42:50,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:42:50,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:42:50,521 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:42:50,521 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:42:50,522 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:42:50,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:42:50,522 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:42:50,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:42:50,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:42:50,523 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:42:50,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:42:50,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:42:50,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:42:50,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:42:50,524 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:42:50,524 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:42:50,525 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:42:50,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:42:50,525 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:42:50,525 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:42:50,526 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_613edb57-e096-4b26-a2d4-7dd92ded4bda/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a14ff88669e01083ca46db0c80d319fe5a2f969bf71d428fc27ed5e7149831c [2021-11-07 01:42:50,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:42:50,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:42:50,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:42:50,975 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:42:50,976 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:42:50,977 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i [2021-11-07 01:42:51,053 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/data/e1db4b6ef/079f03bac66348a9bb6f47278f8d5f36/FLAGa4313339f [2021-11-07 01:42:52,009 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:42:52,011 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i [2021-11-07 01:42:52,063 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/data/e1db4b6ef/079f03bac66348a9bb6f47278f8d5f36/FLAGa4313339f [2021-11-07 01:42:52,431 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/data/e1db4b6ef/079f03bac66348a9bb6f47278f8d5f36 [2021-11-07 01:42:52,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:42:52,435 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:42:52,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:42:52,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:42:52,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:42:52,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:42:52" (1/1) ... [2021-11-07 01:42:52,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73c53eaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:52, skipping insertion in model container [2021-11-07 01:42:52,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:42:52" (1/1) ... [2021-11-07 01:42:52,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:42:52,624 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:42:52,980 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_613edb57-e096-4b26-a2d4-7dd92ded4bda/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i[4510,4523] [2021-11-07 01:42:52,995 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_613edb57-e096-4b26-a2d4-7dd92ded4bda/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i[4570,4583] [2021-11-07 01:42:53,031 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:42:53,046 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:42:54,470 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:54,475 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:54,479 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:54,480 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:54,481 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:54,500 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:54,504 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:54,518 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:54,520 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:55,040 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:42:55,041 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:42:55,042 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:42:55,044 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:42:55,045 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:42:55,046 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:42:55,047 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:42:55,048 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:42:55,049 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:42:55,050 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:42:55,305 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:42:55,468 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:55,469 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:55,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:42:55,667 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:42:55,732 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:42:55,739 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i[4510,4523] [2021-11-07 01:42:55,739 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i[4570,4583] [2021-11-07 01:42:55,745 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:42:55,746 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:42:55,789 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:55,790 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:55,790 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:55,791 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:55,791 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:55,804 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:55,804 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:55,805 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:55,806 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:55,862 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:42:55,863 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:42:55,863 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:42:55,864 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:42:55,865 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:42:55,866 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:42:55,866 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:42:55,867 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:42:55,870 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:42:55,876 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:42:55,922 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:42:55,998 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:55,999 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:56,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:42:56,086 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:42:56,100 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_613edb57-e096-4b26-a2d4-7dd92ded4bda/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i[4510,4523] [2021-11-07 01:42:56,100 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_613edb57-e096-4b26-a2d4-7dd92ded4bda/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i[4570,4583] [2021-11-07 01:42:56,102 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:42:56,103 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:42:56,136 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:56,137 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:56,137 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:56,138 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:56,138 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:56,145 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:56,145 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:56,146 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:56,147 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:56,189 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:42:56,190 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:42:56,191 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:42:56,191 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:42:56,192 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:42:56,193 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:42:56,193 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:42:56,194 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:42:56,194 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:42:56,195 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:42:56,240 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:42:56,315 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:56,315 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:56,356 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:42:56,922 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:42:56,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:56 WrapperNode [2021-11-07 01:42:56,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:42:56,925 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:42:56,925 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:42:56,925 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:42:56,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:56" (1/1) ... [2021-11-07 01:42:57,082 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:56" (1/1) ... [2021-11-07 01:42:57,215 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:42:57,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:42:57,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:42:57,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:42:57,227 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:56" (1/1) ... [2021-11-07 01:42:57,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:56" (1/1) ... [2021-11-07 01:42:57,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:56" (1/1) ... [2021-11-07 01:42:57,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:56" (1/1) ... [2021-11-07 01:42:57,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:56" (1/1) ... [2021-11-07 01:42:57,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:56" (1/1) ... [2021-11-07 01:42:57,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:56" (1/1) ... [2021-11-07 01:42:57,393 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:42:57,394 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:42:57,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:42:57,395 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:42:57,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:56" (1/1) ... [2021-11-07 01:42:57,403 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:42:57,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:42:57,440 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:42:57,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:42:57,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:42:57,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:42:57,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:42:57,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:42:57,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:42:57,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:42:57,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:42:57,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:42:57,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:42:57,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:42:57,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:42:57,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:42:57,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:42:57,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:42:57,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:43:15,594 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:43:15,594 INFO L299 CfgBuilder]: Removed 143 assume(true) statements. [2021-11-07 01:43:15,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:43:15 BoogieIcfgContainer [2021-11-07 01:43:15,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:43:15,599 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:43:15,599 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:43:15,602 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:43:15,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:42:52" (1/3) ... [2021-11-07 01:43:15,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d1e098e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:43:15, skipping insertion in model container [2021-11-07 01:43:15,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:56" (2/3) ... [2021-11-07 01:43:15,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d1e098e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:43:15, skipping insertion in model container [2021-11-07 01:43:15,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:43:15" (3/3) ... [2021-11-07 01:43:15,605 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_from_whole_buffer_harness.i [2021-11-07 01:43:15,610 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:43:15,610 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2021-11-07 01:43:15,659 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:43:15,664 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 01:43:15,664 INFO L340 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2021-11-07 01:43:15,686 INFO L276 IsEmpty]: Start isEmpty. Operand has 293 states, 273 states have (on average 1.4945054945054945) internal successors, (408), 292 states have internal predecessors, (408), 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 01:43:15,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-07 01:43:15,694 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:15,695 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:43:15,696 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-07 01:43:15,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:15,701 INFO L85 PathProgramCache]: Analyzing trace with hash -389295303, now seen corresponding path program 1 times [2021-11-07 01:43:15,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:43:15,723 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [31118924] [2021-11-07 01:43:15,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:15,724 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:43:15,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:43:15,729 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:43:15,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:43:19,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:20,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 1936 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:43:20,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:43:20,576 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 01:43:20,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:43:20,883 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 01:43:20,884 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:43:20,885 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [31118924] [2021-11-07 01:43:20,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [31118924] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:43:20,885 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:43:20,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:43:20,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699268995] [2021-11-07 01:43:20,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:43:20,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:43:20,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:43:20,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:43:20,920 INFO L87 Difference]: Start difference. First operand has 293 states, 273 states have (on average 1.4945054945054945) internal successors, (408), 292 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:20,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:20,963 INFO L93 Difference]: Finished difference Result 582 states and 811 transitions. [2021-11-07 01:43:20,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:43:20,964 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-07 01:43:20,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:20,976 INFO L225 Difference]: With dead ends: 582 [2021-11-07 01:43:20,976 INFO L226 Difference]: Without dead ends: 286 [2021-11-07 01:43:20,979 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:43:20,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2021-11-07 01:43:21,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2021-11-07 01:43:21,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 267 states have (on average 1.3558052434456929) internal successors, (362), 285 states have internal predecessors, (362), 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 01:43:21,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 362 transitions. [2021-11-07 01:43:21,043 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 362 transitions. Word has length 60 [2021-11-07 01:43:21,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:21,043 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 362 transitions. [2021-11-07 01:43:21,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:21,044 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 362 transitions. [2021-11-07 01:43:21,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-07 01:43:21,057 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:21,057 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:43:21,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:43:21,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:43:21,263 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-07 01:43:21,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:21,264 INFO L85 PathProgramCache]: Analyzing trace with hash 20483131, now seen corresponding path program 1 times [2021-11-07 01:43:21,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:43:21,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [539990216] [2021-11-07 01:43:21,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:21,275 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:43:21,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:43:21,276 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:43:21,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:43:25,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:25,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 1936 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:43:25,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:43:25,940 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 01:43:25,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:43:26,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:43:26,239 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:43:26,239 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [539990216] [2021-11-07 01:43:26,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [539990216] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:43:26,240 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:43:26,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:43:26,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991806673] [2021-11-07 01:43:26,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:43:26,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:43:26,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:43:26,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:43:26,243 INFO L87 Difference]: Start difference. First operand 286 states and 362 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:28,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:28,766 INFO L93 Difference]: Finished difference Result 546 states and 690 transitions. [2021-11-07 01:43:28,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:43:28,767 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-07 01:43:28,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:28,771 INFO L225 Difference]: With dead ends: 546 [2021-11-07 01:43:28,771 INFO L226 Difference]: Without dead ends: 286 [2021-11-07 01:43:28,773 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 116 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 01:43:28,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2021-11-07 01:43:28,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2021-11-07 01:43:28,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 267 states have (on average 1.352059925093633) internal successors, (361), 285 states have internal predecessors, (361), 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 01:43:28,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 361 transitions. [2021-11-07 01:43:28,798 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 361 transitions. Word has length 60 [2021-11-07 01:43:28,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:28,798 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 361 transitions. [2021-11-07 01:43:28,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:28,799 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 361 transitions. [2021-11-07 01:43:28,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-07 01:43:28,802 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:28,802 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:43:28,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:43:29,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:43:29,023 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-07 01:43:29,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:29,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1997095144, now seen corresponding path program 1 times [2021-11-07 01:43:29,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:43:29,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [429740024] [2021-11-07 01:43:29,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:29,029 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:43:29,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:43:29,032 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:43:29,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:43:33,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:33,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 1946 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:43:33,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:43:33,830 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 01:43:33,830 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:43:34,123 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 01:43:34,124 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:43:34,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [429740024] [2021-11-07 01:43:34,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [429740024] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:43:34,124 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:43:34,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:43:34,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215783546] [2021-11-07 01:43:34,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:43:34,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:43:34,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:43:34,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:43:34,126 INFO L87 Difference]: Start difference. First operand 286 states and 361 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:38,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:38,181 INFO L93 Difference]: Finished difference Result 637 states and 816 transitions. [2021-11-07 01:43:38,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:43:38,182 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-11-07 01:43:38,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:38,184 INFO L225 Difference]: With dead ends: 637 [2021-11-07 01:43:38,185 INFO L226 Difference]: Without dead ends: 376 [2021-11-07 01:43:38,185 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 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 01:43:38,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2021-11-07 01:43:38,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 304. [2021-11-07 01:43:38,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 285 states have (on average 1.3298245614035087) internal successors, (379), 303 states have internal predecessors, (379), 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 01:43:38,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 379 transitions. [2021-11-07 01:43:38,205 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 379 transitions. Word has length 66 [2021-11-07 01:43:38,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:38,206 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 379 transitions. [2021-11-07 01:43:38,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:38,206 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 379 transitions. [2021-11-07 01:43:38,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-07 01:43:38,209 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:38,209 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:43:38,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:43:38,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:43:38,431 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-07 01:43:38,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:38,432 INFO L85 PathProgramCache]: Analyzing trace with hash -269286042, now seen corresponding path program 1 times [2021-11-07 01:43:38,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:43:38,435 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [168887750] [2021-11-07 01:43:38,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:38,435 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:43:38,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:43:38,436 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:43:38,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:43:42,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:42,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 1949 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 01:43:42,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:43:43,065 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 01:43:43,501 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 01:43:43,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:43:43,909 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 01:43:44,206 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 01:43:44,206 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:43:44,206 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [168887750] [2021-11-07 01:43:44,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [168887750] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:43:44,206 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:43:44,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 13 [2021-11-07 01:43:44,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050175069] [2021-11-07 01:43:44,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 01:43:44,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:43:44,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 01:43:44,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:43:44,208 INFO L87 Difference]: Start difference. First operand 304 states and 379 transitions. Second operand has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:59,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:59,060 INFO L93 Difference]: Finished difference Result 645 states and 812 transitions. [2021-11-07 01:43:59,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-07 01:43:59,062 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-11-07 01:43:59,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:59,064 INFO L225 Difference]: With dead ends: 645 [2021-11-07 01:43:59,064 INFO L226 Difference]: Without dead ends: 368 [2021-11-07 01:43:59,066 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2021-11-07 01:43:59,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2021-11-07 01:43:59,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 302. [2021-11-07 01:43:59,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 283 states have (on average 1.3286219081272084) internal successors, (376), 301 states have internal predecessors, (376), 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 01:43:59,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 376 transitions. [2021-11-07 01:43:59,082 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 376 transitions. Word has length 66 [2021-11-07 01:43:59,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:59,083 INFO L470 AbstractCegarLoop]: Abstraction has 302 states and 376 transitions. [2021-11-07 01:43:59,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:59,083 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 376 transitions. [2021-11-07 01:43:59,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-07 01:43:59,086 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:59,087 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:43:59,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:43:59,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:43:59,315 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-07 01:43:59,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:59,315 INFO L85 PathProgramCache]: Analyzing trace with hash -497506320, now seen corresponding path program 1 times [2021-11-07 01:43:59,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:43:59,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [971105588] [2021-11-07 01:43:59,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:59,321 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:43:59,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:43:59,323 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:43:59,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:44:03,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:44:03,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 1955 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:44:03,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:44:04,146 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 01:44:04,146 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 01:44:04,439 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 01:44:04,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:44:05,069 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 01:44:05,069 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:44:05,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [971105588] [2021-11-07 01:44:05,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [971105588] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:44:05,070 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:44:05,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-07 01:44:05,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610690685] [2021-11-07 01:44:05,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:44:05,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:44:05,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:44:05,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:44:05,072 INFO L87 Difference]: Start difference. First operand 302 states and 376 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:23,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:44:23,003 INFO L93 Difference]: Finished difference Result 933 states and 1151 transitions. [2021-11-07 01:44:23,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:44:23,006 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-11-07 01:44:23,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:44:23,010 INFO L225 Difference]: With dead ends: 933 [2021-11-07 01:44:23,010 INFO L226 Difference]: Without dead ends: 651 [2021-11-07 01:44:23,010 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 133 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 01:44:23,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2021-11-07 01:44:23,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 363. [2021-11-07 01:44:23,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 344 states have (on average 1.319767441860465) internal successors, (454), 362 states have internal predecessors, (454), 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 01:44:23,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 454 transitions. [2021-11-07 01:44:23,026 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 454 transitions. Word has length 70 [2021-11-07 01:44:23,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:44:23,026 INFO L470 AbstractCegarLoop]: Abstraction has 363 states and 454 transitions. [2021-11-07 01:44:23,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:23,027 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 454 transitions. [2021-11-07 01:44:23,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-07 01:44:23,030 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:44:23,030 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:44:23,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-07 01:44:23,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:44:23,247 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-07 01:44:23,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:44:23,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1040833710, now seen corresponding path program 1 times [2021-11-07 01:44:23,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:44:23,251 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [120454126] [2021-11-07 01:44:23,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:44:23,251 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:44:23,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:44:23,252 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:44:23,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:44:27,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:44:27,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 1952 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 01:44:27,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:44:28,107 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 01:44:28,108 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 01:44:28,798 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 01:44:28,799 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:44:29,522 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 01:44:29,523 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:44:29,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [120454126] [2021-11-07 01:44:29,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [120454126] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:44:29,523 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:44:29,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 11 [2021-11-07 01:44:29,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377948663] [2021-11-07 01:44:29,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 01:44:29,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:44:29,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 01:44:29,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-07 01:44:29,525 INFO L87 Difference]: Start difference. First operand 363 states and 454 transitions. Second operand has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:45:07,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:45:07,046 INFO L93 Difference]: Finished difference Result 1180 states and 1397 transitions. [2021-11-07 01:45:07,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-07 01:45:07,051 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-11-07 01:45:07,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:45:07,055 INFO L225 Difference]: With dead ends: 1180 [2021-11-07 01:45:07,055 INFO L226 Difference]: Without dead ends: 738 [2021-11-07 01:45:07,056 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 128 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2021-11-07 01:45:07,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2021-11-07 01:45:07,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 354. [2021-11-07 01:45:07,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 335 states have (on average 1.2567164179104477) internal successors, (421), 353 states have internal predecessors, (421), 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 01:45:07,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 421 transitions. [2021-11-07 01:45:07,072 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 421 transitions. Word has length 70 [2021-11-07 01:45:07,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:45:07,073 INFO L470 AbstractCegarLoop]: Abstraction has 354 states and 421 transitions. [2021-11-07 01:45:07,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:45:07,073 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 421 transitions. [2021-11-07 01:45:07,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-07 01:45:07,076 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:45:07,076 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:45:07,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:45:07,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:45:07,295 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-07 01:45:07,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:45:07,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1397731993, now seen corresponding path program 1 times [2021-11-07 01:45:07,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:45:07,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [168857761] [2021-11-07 01:45:07,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:45:07,300 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:45:07,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:45:07,302 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:45:07,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:45:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:45:12,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 2007 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 01:45:12,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:45:12,502 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 01:45:12,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:45:12,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:45:13,407 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 01:45:13,709 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 01:45:13,709 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:45:13,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [168857761] [2021-11-07 01:45:13,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [168857761] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:45:13,710 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:45:13,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 13 [2021-11-07 01:45:13,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651881424] [2021-11-07 01:45:13,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 01:45:13,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:45:13,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 01:45:13,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:45:13,711 INFO L87 Difference]: Start difference. First operand 354 states and 421 transitions. Second operand has 13 states, 13 states have (on average 10.615384615384615) internal successors, (138), 13 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:45:23,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:45:23,790 INFO L93 Difference]: Finished difference Result 731 states and 874 transitions. [2021-11-07 01:45:23,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 01:45:23,792 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.615384615384615) internal successors, (138), 13 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-11-07 01:45:23,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:45:23,795 INFO L225 Difference]: With dead ends: 731 [2021-11-07 01:45:23,796 INFO L226 Difference]: Without dead ends: 432 [2021-11-07 01:45:23,797 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2021-11-07 01:45:23,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2021-11-07 01:45:23,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 348. [2021-11-07 01:45:23,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 329 states have (on average 1.2553191489361701) internal successors, (413), 347 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:45:23,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 413 transitions. [2021-11-07 01:45:23,811 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 413 transitions. Word has length 96 [2021-11-07 01:45:23,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:45:23,812 INFO L470 AbstractCegarLoop]: Abstraction has 348 states and 413 transitions. [2021-11-07 01:45:23,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.615384615384615) internal successors, (138), 13 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:45:23,813 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 413 transitions. [2021-11-07 01:45:23,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-07 01:45:23,814 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:45:23,814 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:45:23,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:45:24,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:45:24,023 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-07 01:45:24,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:45:24,023 INFO L85 PathProgramCache]: Analyzing trace with hash -88599126, now seen corresponding path program 1 times [2021-11-07 01:45:24,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:45:24,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1759058317] [2021-11-07 01:45:24,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:45:24,027 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:45:24,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:45:24,028 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:45:24,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:45:28,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:45:28,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 2018 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:45:28,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:45:29,245 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 01:45:29,245 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:45:29,604 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 01:45:29,604 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:45:29,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1759058317] [2021-11-07 01:45:29,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1759058317] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:45:29,604 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:45:29,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:45:29,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992663452] [2021-11-07 01:45:29,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:45:29,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:45:29,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:45:29,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:45:29,607 INFO L87 Difference]: Start difference. First operand 348 states and 413 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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 01:45:34,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:45:34,296 INFO L93 Difference]: Finished difference Result 715 states and 836 transitions. [2021-11-07 01:45:34,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:45:34,302 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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 102 [2021-11-07 01:45:34,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:45:34,305 INFO L225 Difference]: With dead ends: 715 [2021-11-07 01:45:34,306 INFO L226 Difference]: Without dead ends: 384 [2021-11-07 01:45:34,307 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 201 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 01:45:34,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2021-11-07 01:45:34,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 334. [2021-11-07 01:45:34,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 315 states have (on average 1.2158730158730158) internal successors, (383), 333 states have internal predecessors, (383), 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 01:45:34,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 383 transitions. [2021-11-07 01:45:34,321 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 383 transitions. Word has length 102 [2021-11-07 01:45:34,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:45:34,322 INFO L470 AbstractCegarLoop]: Abstraction has 334 states and 383 transitions. [2021-11-07 01:45:34,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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 01:45:34,322 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 383 transitions. [2021-11-07 01:45:34,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-07 01:45:34,324 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:45:34,324 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:45:34,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:45:34,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:45:34,539 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-07 01:45:34,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:45:34,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1802168550, now seen corresponding path program 1 times [2021-11-07 01:45:34,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:45:34,546 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1255162043] [2021-11-07 01:45:34,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:45:34,546 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:45:34,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:45:34,547 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:45:34,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613edb57-e096-4b26-a2d4-7dd92ded4bda/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:45:39,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:45:39,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 2017 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-07 01:45:39,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:45:43,221 INFO L354 Elim1Store]: treesize reduction 64, result has 1.5 percent of original size [2021-11-07 01:45:43,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 28 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 304 treesize of output 112 [2021-11-07 01:45:43,411 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 01:45:43,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:46:15,419 WARN L207 SmtUtils]: Spent 29.10 s on a formula simplification. DAG size of input: 1166 DAG size of output: 314 [2021-11-07 01:46:15,426 INFO L354 Elim1Store]: treesize reduction 2882, result has 23.2 percent of original size [2021-11-07 01:46:15,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 24 select indices, 24 select index equivalence classes, 0 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 276 case distinctions, treesize of input 193 treesize of output 923