./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_swap_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_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/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_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/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_545884e6-a1d3-4ce9-8524-92084f95c641/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 50333b6a17e96dff6400d2c6a85c0145ae494daf76266f6b6d6936a12a6b2527 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:11:31,512 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:11:31,514 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:11:31,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:11:31,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:11:31,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:11:31,558 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:11:31,560 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:11:31,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:11:31,564 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:11:31,566 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:11:31,568 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:11:31,568 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:11:31,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:11:31,572 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:11:31,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:11:31,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:11:31,577 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:11:31,579 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:11:31,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:11:31,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:11:31,587 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:11:31,589 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:11:31,590 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:11:31,595 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:11:31,596 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:11:31,596 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:11:31,598 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:11:31,598 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:11:31,600 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:11:31,600 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:11:31,601 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:11:31,602 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:11:31,604 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:11:31,605 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:11:31,606 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:11:31,607 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:11:31,607 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:11:31,608 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:11:31,609 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:11:31,610 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:11:31,611 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 02:11:31,644 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:11:31,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:11:31,645 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:11:31,646 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:11:31,646 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:11:31,647 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:11:31,647 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:11:31,648 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:11:31,648 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:11:31,649 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:11:31,649 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:11:31,650 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:11:31,650 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:11:31,651 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:11:31,651 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:11:31,652 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:11:31,653 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:11:31,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:11:31,654 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:11:31,654 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:11:31,656 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:11:31,657 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:11:31,657 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:11:31,658 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:11:31,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:11:31,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:11:31,658 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:11:31,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:11:31,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:11:31,662 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:11:31,662 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:11:31,662 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:11:31,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:11:31,663 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:11:31,663 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:11:31,664 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:11:31,665 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_545884e6-a1d3-4ce9-8524-92084f95c641/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50333b6a17e96dff6400d2c6a85c0145ae494daf76266f6b6d6936a12a6b2527 [2021-11-07 02:11:31,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:11:31,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:11:31,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:11:31,966 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:11:31,967 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:11:31,968 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i [2021-11-07 02:11:32,051 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/data/9c8d3b46f/cb31ba020ec140ba9ef3cafb61d3999e/FLAG8eef43b24 [2021-11-07 02:11:32,988 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:11:32,989 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i [2021-11-07 02:11:33,047 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/data/9c8d3b46f/cb31ba020ec140ba9ef3cafb61d3999e/FLAG8eef43b24 [2021-11-07 02:11:33,403 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/data/9c8d3b46f/cb31ba020ec140ba9ef3cafb61d3999e [2021-11-07 02:11:33,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:11:33,408 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:11:33,410 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:11:33,410 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:11:33,416 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:11:33,418 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:11:33" (1/1) ... [2021-11-07 02:11:33,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e9a3f3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:33, skipping insertion in model container [2021-11-07 02:11:33,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:11:33" (1/1) ... [2021-11-07 02:11:33,425 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:11:33,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:11:33,969 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_545884e6-a1d3-4ce9-8524-92084f95c641/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i[4493,4506] [2021-11-07 02:11:33,979 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_545884e6-a1d3-4ce9-8524-92084f95c641/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i[4553,4566] [2021-11-07 02:11:34,028 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:11:34,047 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:11:35,270 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:35,271 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:35,272 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:35,273 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:35,274 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:35,293 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:35,294 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:35,296 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:35,297 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:35,300 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:35,302 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:35,303 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:35,304 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:35,943 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:11:35,945 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:11:35,946 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:11:35,948 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:11:35,950 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:11:35,951 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:11:35,952 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:11:35,952 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:11:35,953 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:11:35,954 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:11:36,240 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:11:36,648 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:36,652 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:36,707 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:36,713 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:36,721 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:36,724 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:36,751 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:36,753 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:36,755 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:36,755 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:36,756 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:36,756 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:36,757 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:36,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:11:36,926 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 02:11:36,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@12b3fecb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:36, skipping insertion in model container [2021-11-07 02:11:36,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:11:36,927 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:11:36,931 INFO L168 Benchmark]: Toolchain (without parser) took 3520.18 ms. Allocated memory was 88.1 MB in the beginning and 113.2 MB in the end (delta: 25.2 MB). Free memory was 58.7 MB in the beginning and 74.1 MB in the end (delta: -15.4 MB). Peak memory consumption was 44.8 MB. Max. memory is 16.1 GB. [2021-11-07 02:11:36,931 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 88.1 MB. Free memory is still 66.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:11:36,933 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3517.87 ms. Allocated memory was 88.1 MB in the beginning and 113.2 MB in the end (delta: 25.2 MB). Free memory was 58.4 MB in the beginning and 74.1 MB in the end (delta: -15.6 MB). Peak memory consumption was 42.8 MB. Max. memory is 16.1 GB. [2021-11-07 02:11:36,937 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 88.1 MB. Free memory is still 66.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3517.87 ms. Allocated memory was 88.1 MB in the beginning and 113.2 MB in the end (delta: 25.2 MB). Free memory was 58.4 MB in the beginning and 74.1 MB in the end (delta: -15.6 MB). Peak memory consumption was 42.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7051]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/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_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/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_545884e6-a1d3-4ce9-8524-92084f95c641/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 50333b6a17e96dff6400d2c6a85c0145ae494daf76266f6b6d6936a12a6b2527 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:11:39,522 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:11:39,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:11:39,591 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:11:39,592 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:11:39,597 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:11:39,599 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:11:39,604 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:11:39,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:11:39,617 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:11:39,619 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:11:39,621 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:11:39,622 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:11:39,625 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:11:39,627 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:11:39,632 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:11:39,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:11:39,636 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:11:39,638 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:11:39,647 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:11:39,650 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:11:39,651 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:11:39,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:11:39,656 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:11:39,667 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:11:39,668 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:11:39,668 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:11:39,670 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:11:39,671 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:11:39,672 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:11:39,673 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:11:39,674 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:11:39,676 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:11:39,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:11:39,678 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:11:39,679 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:11:39,680 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:11:39,680 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:11:39,680 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:11:39,682 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:11:39,683 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:11:39,684 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 02:11:39,732 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:11:39,733 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:11:39,734 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:11:39,734 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:11:39,735 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:11:39,735 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:11:39,735 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:11:39,735 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:11:39,735 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:11:39,737 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:11:39,738 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:11:39,739 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:11:39,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:11:39,739 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:11:39,739 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:11:39,740 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:11:39,740 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:11:39,740 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:11:39,740 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:11:39,741 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:11:39,741 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:11:39,741 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:11:39,741 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:11:39,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:11:39,742 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:11:39,742 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:11:39,742 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:11:39,743 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:11:39,743 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:11:39,743 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:11:39,743 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:11:39,743 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:11:39,744 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_545884e6-a1d3-4ce9-8524-92084f95c641/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50333b6a17e96dff6400d2c6a85c0145ae494daf76266f6b6d6936a12a6b2527 [2021-11-07 02:11:40,218 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:11:40,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:11:40,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:11:40,248 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:11:40,249 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:11:40,250 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i [2021-11-07 02:11:40,328 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/data/98992bbc9/b6334753813c4a2c8486213615843ba7/FLAG3531d63f3 [2021-11-07 02:11:41,322 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:11:41,323 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i [2021-11-07 02:11:41,391 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/data/98992bbc9/b6334753813c4a2c8486213615843ba7/FLAG3531d63f3 [2021-11-07 02:11:41,704 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/data/98992bbc9/b6334753813c4a2c8486213615843ba7 [2021-11-07 02:11:41,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:11:41,710 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:11:41,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:11:41,714 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:11:41,718 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:11:41,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:11:41" (1/1) ... [2021-11-07 02:11:41,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62977f56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:41, skipping insertion in model container [2021-11-07 02:11:41,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:11:41" (1/1) ... [2021-11-07 02:11:41,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:11:41,934 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:11:42,394 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_545884e6-a1d3-4ce9-8524-92084f95c641/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i[4493,4506] [2021-11-07 02:11:42,409 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_545884e6-a1d3-4ce9-8524-92084f95c641/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i[4553,4566] [2021-11-07 02:11:42,441 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:11:42,449 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:11:43,788 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:43,789 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:43,790 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:43,791 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:43,792 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:43,809 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:43,810 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:43,813 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:43,813 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:43,816 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:43,817 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:43,818 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:43,819 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:44,431 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:11:44,432 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:11:44,434 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:11:44,435 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:11:44,437 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:11:44,438 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:11:44,439 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:11:44,440 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:11:44,441 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:11:44,442 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:11:44,715 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:11:45,234 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,236 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,274 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,276 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,284 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,287 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,314 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,315 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,316 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,317 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,317 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,318 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,318 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:11:45,393 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:11:45,465 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:11:45,470 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_545884e6-a1d3-4ce9-8524-92084f95c641/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i[4493,4506] [2021-11-07 02:11:45,471 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_545884e6-a1d3-4ce9-8524-92084f95c641/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i[4553,4566] [2021-11-07 02:11:45,473 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:11:45,474 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:11:45,529 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,533 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,534 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,534 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,535 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,550 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,550 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,552 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,552 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,553 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,555 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,556 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,556 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,604 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:11:45,606 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:11:45,606 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:11:45,608 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:11:45,609 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:11:45,610 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:11:45,610 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:11:45,611 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:11:45,612 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:11:45,612 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:11:45,671 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:11:45,810 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,810 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,820 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,821 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,823 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,824 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,844 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,845 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,846 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,846 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,847 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,847 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,848 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:45,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:11:45,946 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:11:45,977 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_545884e6-a1d3-4ce9-8524-92084f95c641/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i[4493,4506] [2021-11-07 02:11:45,978 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_545884e6-a1d3-4ce9-8524-92084f95c641/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i[4553,4566] [2021-11-07 02:11:45,980 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:11:45,981 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:11:46,012 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:46,013 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:46,013 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:46,013 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:46,014 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:46,020 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:46,020 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:46,021 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:46,022 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:46,023 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:46,024 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:46,024 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:46,024 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:46,054 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:11:46,055 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:11:46,055 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:11:46,056 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:11:46,057 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:11:46,057 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:11:46,058 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:11:46,058 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:11:46,059 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:11:46,059 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:11:46,079 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:11:46,205 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:46,205 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:46,214 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:46,215 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:46,218 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:46,218 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:46,229 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:46,230 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:46,230 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:46,231 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:46,231 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:46,232 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:46,232 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:46,281 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:11:46,920 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:11:46,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:46 WrapperNode [2021-11-07 02:11:46,921 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:11:46,923 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:11:46,923 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:11:46,923 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:11:46,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:46" (1/1) ... [2021-11-07 02:11:47,082 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:46" (1/1) ... [2021-11-07 02:11:47,247 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:11:47,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:11:47,249 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:11:47,249 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:11:47,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:46" (1/1) ... [2021-11-07 02:11:47,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:46" (1/1) ... [2021-11-07 02:11:47,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:46" (1/1) ... [2021-11-07 02:11:47,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:46" (1/1) ... [2021-11-07 02:11:47,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:46" (1/1) ... [2021-11-07 02:11:47,435 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:46" (1/1) ... [2021-11-07 02:11:47,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:46" (1/1) ... [2021-11-07 02:11:47,498 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:11:47,500 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:11:47,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:11:47,501 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:11:47,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:46" (1/1) ... [2021-11-07 02:11:47,512 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:11:47,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:11:47,544 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:11:47,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:11:47,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-07 02:11:47,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 02:11:47,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 02:11:47,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:11:47,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:11:47,603 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-07 02:11:47,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:11:47,603 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-07 02:11:47,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 02:11:47,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:11:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:11:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 02:11:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 02:11:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 02:11:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 02:11:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 02:11:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 02:12:04,275 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:12:04,275 INFO L299 CfgBuilder]: Removed 190 assume(true) statements. [2021-11-07 02:12:04,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:12:04 BoogieIcfgContainer [2021-11-07 02:12:04,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:12:04,281 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:12:04,281 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:12:04,284 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:12:04,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:11:41" (1/3) ... [2021-11-07 02:12:04,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@710ff4a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:12:04, skipping insertion in model container [2021-11-07 02:12:04,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:46" (2/3) ... [2021-11-07 02:12:04,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@710ff4a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:12:04, skipping insertion in model container [2021-11-07 02:12:04,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:12:04" (3/3) ... [2021-11-07 02:12:04,287 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_table_swap_harness.i [2021-11-07 02:12:04,294 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:12:04,294 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-07 02:12:04,350 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:12:04,356 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 02:12:04,357 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-07 02:12:04,375 INFO L276 IsEmpty]: Start isEmpty. Operand has 164 states, 159 states have (on average 1.3584905660377358) internal successors, (216), 163 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:12:04,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 02:12:04,382 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:12:04,382 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:12:04,383 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-07 02:12:04,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:12:04,389 INFO L85 PathProgramCache]: Analyzing trace with hash 67832654, now seen corresponding path program 1 times [2021-11-07 02:12:04,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:12:04,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1996870876] [2021-11-07 02:12:04,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:12:04,414 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:12:04,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:12:04,418 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:12:04,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:12:08,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:12:08,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 1447 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 02:12:08,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:12:08,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:12:08,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:12:09,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:12:09,041 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:12:09,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1996870876] [2021-11-07 02:12:09,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1996870876] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:12:09,042 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:12:09,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 02:12:09,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723163986] [2021-11-07 02:12:09,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 02:12:09,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:12:09,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 02:12:09,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:12:09,076 INFO L87 Difference]: Start difference. First operand has 164 states, 159 states have (on average 1.3584905660377358) internal successors, (216), 163 states have internal predecessors, (216), 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 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:12:09,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:12:09,132 INFO L93 Difference]: Finished difference Result 323 states and 425 transitions. [2021-11-07 02:12:09,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 02:12:09,134 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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 15 [2021-11-07 02:12:09,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:12:09,148 INFO L225 Difference]: With dead ends: 323 [2021-11-07 02:12:09,148 INFO L226 Difference]: Without dead ends: 158 [2021-11-07 02:12:09,155 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:12:09,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-11-07 02:12:09,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2021-11-07 02:12:09,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 154 states have (on average 1.2337662337662338) internal successors, (190), 157 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:12:09,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 190 transitions. [2021-11-07 02:12:09,219 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 190 transitions. Word has length 15 [2021-11-07 02:12:09,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:12:09,220 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 190 transitions. [2021-11-07 02:12:09,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:12:09,220 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 190 transitions. [2021-11-07 02:12:09,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 02:12:09,222 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:12:09,222 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:12:09,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:12:09,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:12:09,424 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-07 02:12:09,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:12:09,425 INFO L85 PathProgramCache]: Analyzing trace with hash -325194356, now seen corresponding path program 1 times [2021-11-07 02:12:09,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:12:09,433 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [98132462] [2021-11-07 02:12:09,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:12:09,433 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:12:09,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:12:09,435 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:12:09,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:12:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:12:13,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 1447 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:12:13,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:12:13,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:12:13,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:12:13,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:12:13,599 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:12:13,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [98132462] [2021-11-07 02:12:13,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [98132462] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:12:13,599 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:12:13,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 02:12:13,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539594237] [2021-11-07 02:12:13,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:12:13,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:12:13,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:12:13,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:12:13,602 INFO L87 Difference]: Start difference. First operand 158 states and 190 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:12:13,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:12:13,672 INFO L93 Difference]: Finished difference Result 270 states and 323 transitions. [2021-11-07 02:12:13,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:12:13,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2021-11-07 02:12:13,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:12:13,693 INFO L225 Difference]: With dead ends: 270 [2021-11-07 02:12:13,693 INFO L226 Difference]: Without dead ends: 238 [2021-11-07 02:12:13,694 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:12:13,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2021-11-07 02:12:13,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 222. [2021-11-07 02:12:13,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 218 states have (on average 1.224770642201835) internal successors, (267), 221 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:12:13,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 267 transitions. [2021-11-07 02:12:13,717 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 267 transitions. Word has length 15 [2021-11-07 02:12:13,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:12:13,717 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 267 transitions. [2021-11-07 02:12:13,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:12:13,717 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 267 transitions. [2021-11-07 02:12:13,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-07 02:12:13,719 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:12:13,719 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:12:13,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:12:13,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:12:13,938 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-07 02:12:13,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:12:13,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1994950714, now seen corresponding path program 1 times [2021-11-07 02:12:13,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:12:13,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1970043775] [2021-11-07 02:12:13,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:12:13,942 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:12:13,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:12:13,943 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:12:13,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:12:17,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:12:18,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 1445 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:12:18,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:12:18,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:12:18,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:12:18,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:12:18,209 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:12:18,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1970043775] [2021-11-07 02:12:18,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1970043775] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:12:18,209 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:12:18,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 02:12:18,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941660701] [2021-11-07 02:12:18,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:12:18,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:12:18,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:12:18,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:12:18,212 INFO L87 Difference]: Start difference. First operand 222 states and 267 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:12:18,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:12:18,265 INFO L93 Difference]: Finished difference Result 262 states and 313 transitions. [2021-11-07 02:12:18,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:12:18,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2021-11-07 02:12:18,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:12:18,269 INFO L225 Difference]: With dead ends: 262 [2021-11-07 02:12:18,269 INFO L226 Difference]: Without dead ends: 241 [2021-11-07 02:12:18,270 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:12:18,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2021-11-07 02:12:18,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 237. [2021-11-07 02:12:18,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 233 states have (on average 1.2231759656652361) internal successors, (285), 236 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:12:18,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 285 transitions. [2021-11-07 02:12:18,298 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 285 transitions. Word has length 16 [2021-11-07 02:12:18,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:12:18,298 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 285 transitions. [2021-11-07 02:12:18,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:12:18,299 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 285 transitions. [2021-11-07 02:12:18,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-07 02:12:18,302 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:12:18,302 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:12:18,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:12:18,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:12:18,515 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-07 02:12:18,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:12:18,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1734286995, now seen corresponding path program 1 times [2021-11-07 02:12:18,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:12:18,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1281882146] [2021-11-07 02:12:18,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:12:18,519 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:12:18,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:12:18,520 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:12:18,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:12:22,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:12:23,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 1634 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:12:23,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:12:23,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:12:23,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:12:23,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:12:23,688 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:12:23,689 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1281882146] [2021-11-07 02:12:23,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1281882146] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:12:23,689 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:12:23,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 02:12:23,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947291789] [2021-11-07 02:12:23,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:12:23,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:12:23,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:12:23,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:12:23,692 INFO L87 Difference]: Start difference. First operand 237 states and 285 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:12:24,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:12:24,460 INFO L93 Difference]: Finished difference Result 627 states and 755 transitions. [2021-11-07 02:12:24,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:12:24,463 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-07 02:12:24,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:12:24,467 INFO L225 Difference]: With dead ends: 627 [2021-11-07 02:12:24,467 INFO L226 Difference]: Without dead ends: 434 [2021-11-07 02:12:24,469 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:12:24,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2021-11-07 02:12:24,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 255. [2021-11-07 02:12:24,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 251 states have (on average 1.207171314741036) internal successors, (303), 254 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:12:24,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 303 transitions. [2021-11-07 02:12:24,498 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 303 transitions. Word has length 50 [2021-11-07 02:12:24,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:12:24,498 INFO L470 AbstractCegarLoop]: Abstraction has 255 states and 303 transitions. [2021-11-07 02:12:24,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:12:24,499 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 303 transitions. [2021-11-07 02:12:24,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-07 02:12:24,502 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:12:24,502 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:12:24,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 02:12:24,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:12:24,719 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-07 02:12:24,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:12:24,719 INFO L85 PathProgramCache]: Analyzing trace with hash -569476781, now seen corresponding path program 1 times [2021-11-07 02:12:24,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:12:24,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1941175165] [2021-11-07 02:12:24,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:12:24,723 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:12:24,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:12:24,724 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:12:24,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 02:12:28,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:12:28,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 1640 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:12:29,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:12:29,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:12:29,276 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:12:29,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:12:29,541 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:12:29,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1941175165] [2021-11-07 02:12:29,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1941175165] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:12:29,541 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:12:29,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-07 02:12:29,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272631130] [2021-11-07 02:12:29,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:12:29,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:12:29,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:12:29,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:12:29,543 INFO L87 Difference]: Start difference. First operand 255 states and 303 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:12:29,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:12:29,927 INFO L93 Difference]: Finished difference Result 468 states and 555 transitions. [2021-11-07 02:12:29,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:12:29,928 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-07 02:12:29,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:12:29,931 INFO L225 Difference]: With dead ends: 468 [2021-11-07 02:12:29,931 INFO L226 Difference]: Without dead ends: 255 [2021-11-07 02:12:29,933 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 02:12:29,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2021-11-07 02:12:29,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 237. [2021-11-07 02:12:29,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 233 states have (on average 1.1716738197424892) internal successors, (273), 236 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:12:29,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 273 transitions. [2021-11-07 02:12:29,952 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 273 transitions. Word has length 54 [2021-11-07 02:12:29,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:12:29,953 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 273 transitions. [2021-11-07 02:12:29,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:12:29,953 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 273 transitions. [2021-11-07 02:12:29,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-07 02:12:29,957 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:12:29,957 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 02:12:30,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 02:12:30,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:12:30,183 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-07 02:12:30,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:12:30,184 INFO L85 PathProgramCache]: Analyzing trace with hash 207541157, now seen corresponding path program 1 times [2021-11-07 02:12:30,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:12:30,189 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1946680058] [2021-11-07 02:12:30,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:12:30,190 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:12:30,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:12:30,191 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:12:30,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 02:12:34,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:12:35,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 1706 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 02:12:35,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:12:35,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-07 02:12:35,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:12:35,877 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:12:36,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-07 02:12:36,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:12:36,508 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:12:36,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1946680058] [2021-11-07 02:12:36,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1946680058] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:12:36,509 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:12:36,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-11-07 02:12:36,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283036940] [2021-11-07 02:12:36,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 02:12:36,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:12:36,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 02:12:36,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:12:36,511 INFO L87 Difference]: Start difference. First operand 237 states and 273 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 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 02:12:45,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:12:45,336 INFO L93 Difference]: Finished difference Result 430 states and 493 transitions. [2021-11-07 02:12:45,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 02:12:45,337 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 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 02:12:45,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:12:45,339 INFO L225 Difference]: With dead ends: 430 [2021-11-07 02:12:45,339 INFO L226 Difference]: Without dead ends: 293 [2021-11-07 02:12:45,340 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-11-07 02:12:45,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2021-11-07 02:12:45,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 239. [2021-11-07 02:12:45,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 235 states have (on average 1.1702127659574468) internal successors, (275), 238 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:12:45,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 275 transitions. [2021-11-07 02:12:45,355 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 275 transitions. Word has length 60 [2021-11-07 02:12:45,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:12:45,356 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 275 transitions. [2021-11-07 02:12:45,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 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 02:12:45,356 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 275 transitions. [2021-11-07 02:12:45,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-07 02:12:45,360 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:12:45,360 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 02:12:45,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 02:12:45,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:12:45,575 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-07 02:12:45,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:12:45,576 INFO L85 PathProgramCache]: Analyzing trace with hash -2036442141, now seen corresponding path program 1 times [2021-11-07 02:12:45,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:12:45,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1577689017] [2021-11-07 02:12:45,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:12:45,579 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:12:45,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:12:45,580 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:12:45,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 02:12:50,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:12:50,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 1703 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:12:50,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:12:50,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:12:50,647 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:12:50,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:12:50,974 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:12:50,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1577689017] [2021-11-07 02:12:50,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1577689017] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:12:50,974 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:12:50,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 02:12:50,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637687316] [2021-11-07 02:12:50,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:12:50,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:12:50,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:12:50,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:12:50,976 INFO L87 Difference]: Start difference. First operand 239 states and 275 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 02:12:51,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:12:51,186 INFO L93 Difference]: Finished difference Result 379 states and 438 transitions. [2021-11-07 02:12:51,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:12:51,189 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 02:12:51,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:12:51,191 INFO L225 Difference]: With dead ends: 379 [2021-11-07 02:12:51,191 INFO L226 Difference]: Without dead ends: 237 [2021-11-07 02:12:51,192 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 02:12:51,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-11-07 02:12:51,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2021-11-07 02:12:51,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 233 states have (on average 1.1587982832618027) internal successors, (270), 236 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:12:51,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 270 transitions. [2021-11-07 02:12:51,209 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 270 transitions. Word has length 60 [2021-11-07 02:12:51,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:12:51,209 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 270 transitions. [2021-11-07 02:12:51,209 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 02:12:51,210 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 270 transitions. [2021-11-07 02:12:51,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-07 02:12:51,212 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:12:51,212 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] [2021-11-07 02:12:51,280 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-07 02:12:51,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:12:51,427 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-07 02:12:51,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:12:51,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1309166377, now seen corresponding path program 1 times [2021-11-07 02:12:51,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:12:51,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [260427823] [2021-11-07 02:12:51,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:12:51,432 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:12:51,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:12:51,434 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:12:51,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 02:12:56,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:12:56,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 1707 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 02:12:56,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:12:56,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-07 02:12:57,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:12:57,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:12:57,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-07 02:12:57,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:12:57,731 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:12:57,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [260427823] [2021-11-07 02:12:57,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [260427823] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:12:57,732 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:12:57,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-11-07 02:12:57,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028212270] [2021-11-07 02:12:57,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 02:12:57,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:12:57,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 02:12:57,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:12:57,734 INFO L87 Difference]: Start difference. First operand 237 states and 270 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:13:05,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:13:05,053 INFO L93 Difference]: Finished difference Result 383 states and 433 transitions. [2021-11-07 02:13:05,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 02:13:05,055 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 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 61 [2021-11-07 02:13:05,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:13:05,057 INFO L225 Difference]: With dead ends: 383 [2021-11-07 02:13:05,057 INFO L226 Difference]: Without dead ends: 291 [2021-11-07 02:13:05,058 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-11-07 02:13:05,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2021-11-07 02:13:05,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 241. [2021-11-07 02:13:05,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 237 states have (on average 1.1561181434599157) internal successors, (274), 240 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:13:05,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 274 transitions. [2021-11-07 02:13:05,077 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 274 transitions. Word has length 61 [2021-11-07 02:13:05,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:13:05,077 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 274 transitions. [2021-11-07 02:13:05,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:13:05,078 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 274 transitions. [2021-11-07 02:13:05,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-07 02:13:05,079 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:13:05,080 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] [2021-11-07 02:13:05,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 02:13:05,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:13:05,307 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-07 02:13:05,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:13:05,308 INFO L85 PathProgramCache]: Analyzing trace with hash -934816921, now seen corresponding path program 1 times [2021-11-07 02:13:05,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:13:05,311 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2140655661] [2021-11-07 02:13:05,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:13:05,311 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:13:05,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:13:05,312 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:13:05,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 02:13:09,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:13:10,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 1704 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:13:10,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:13:10,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:13:10,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:13:10,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:13:10,818 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:13:10,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2140655661] [2021-11-07 02:13:10,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2140655661] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:13:10,818 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:13:10,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 02:13:10,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4005376] [2021-11-07 02:13:10,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:13:10,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:13:10,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:13:10,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:13:10,821 INFO L87 Difference]: Start difference. First operand 241 states and 274 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:13:11,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:13:11,029 INFO L93 Difference]: Finished difference Result 349 states and 398 transitions. [2021-11-07 02:13:11,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:13:11,032 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 61 [2021-11-07 02:13:11,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:13:11,034 INFO L225 Difference]: With dead ends: 349 [2021-11-07 02:13:11,034 INFO L226 Difference]: Without dead ends: 237 [2021-11-07 02:13:11,035 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:13:11,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-11-07 02:13:11,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2021-11-07 02:13:11,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 233 states have (on average 1.1330472103004292) internal successors, (264), 236 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:13:11,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 264 transitions. [2021-11-07 02:13:11,059 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 264 transitions. Word has length 61 [2021-11-07 02:13:11,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:13:11,060 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 264 transitions. [2021-11-07 02:13:11,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:13:11,060 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 264 transitions. [2021-11-07 02:13:11,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-07 02:13:11,061 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:13:11,061 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] [2021-11-07 02:13:11,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 02:13:11,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:13:11,287 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-07 02:13:11,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:13:11,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1017128822, now seen corresponding path program 1 times [2021-11-07 02:13:11,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:13:11,291 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1594562759] [2021-11-07 02:13:11,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:13:11,291 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:13:11,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:13:11,292 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:13:11,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 02:13:15,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:13:16,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 1717 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 02:13:16,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:13:16,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-07 02:13:16,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2021-11-07 02:13:16,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:13:16,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:13:17,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-07 02:13:17,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:13:17,414 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:13:17,414 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1594562759] [2021-11-07 02:13:17,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1594562759] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:13:17,415 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:13:17,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-07 02:13:17,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228234957] [2021-11-07 02:13:17,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 02:13:17,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:13:17,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 02:13:17,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:13:17,416 INFO L87 Difference]: Start difference. First operand 237 states and 264 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:13:25,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:13:25,918 INFO L93 Difference]: Finished difference Result 434 states and 480 transitions. [2021-11-07 02:13:25,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 02:13:25,928 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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 62 [2021-11-07 02:13:25,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:13:25,931 INFO L225 Difference]: With dead ends: 434 [2021-11-07 02:13:25,931 INFO L226 Difference]: Without dead ends: 296 [2021-11-07 02:13:25,932 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-11-07 02:13:25,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2021-11-07 02:13:25,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 237. [2021-11-07 02:13:25,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 233 states have (on average 1.128755364806867) internal successors, (263), 236 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:13:25,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 263 transitions. [2021-11-07 02:13:25,951 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 263 transitions. Word has length 62 [2021-11-07 02:13:25,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:13:25,952 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 263 transitions. [2021-11-07 02:13:25,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:13:25,952 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 263 transitions. [2021-11-07 02:13:25,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-07 02:13:25,953 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:13:25,954 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:13:26,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 02:13:26,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:13:26,167 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-07 02:13:26,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:13:26,168 INFO L85 PathProgramCache]: Analyzing trace with hash 778166894, now seen corresponding path program 1 times [2021-11-07 02:13:26,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:13:26,172 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [909355973] [2021-11-07 02:13:26,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:13:26,172 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:13:26,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:13:26,175 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:13:26,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545884e6-a1d3-4ce9-8524-92084f95c641/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 02:14:04,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:14:05,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 1730 conjuncts, 93 conjunts are in the unsatisfiable core [2021-11-07 02:14:05,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:14:06,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-07 02:14:06,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-07 02:14:10,407 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 509 treesize of output 377 [2021-11-07 02:14:10,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 310 treesize of output 206 [2021-11-07 02:14:19,150 WARN L207 SmtUtils]: Spent 7.95 s on a formula simplification. DAG size of input: 533 DAG size of output: 220 [2021-11-07 02:14:19,153 INFO L354 Elim1Store]: treesize reduction 5843, result has 10.6 percent of original size [2021-11-07 02:14:19,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 29 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 588 treesize of output 772