./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/memset_using_uint64_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_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/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_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/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_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/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 9ff439c9da308e48e314eaeb6f620d0560f5430b3c601570b5afd8d635a5b965 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:18:46,466 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:18:46,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:18:46,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:18:46,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:18:46,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:18:46,542 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:18:46,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:18:46,549 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:18:46,556 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:18:46,557 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:18:46,559 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:18:46,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:18:46,563 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:18:46,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:18:46,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:18:46,569 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:18:46,570 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:18:46,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:18:46,576 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:18:46,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:18:46,580 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:18:46,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:18:46,583 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:18:46,587 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:18:46,588 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:18:46,589 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:18:46,590 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:18:46,591 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:18:46,592 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:18:46,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:18:46,595 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:18:46,596 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:18:46,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:18:46,599 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:18:46,599 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:18:46,600 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:18:46,600 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:18:46,601 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:18:46,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:18:46,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:18:46,604 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 02:18:46,634 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:18:46,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:18:46,635 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:18:46,635 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:18:46,636 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:18:46,636 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:18:46,636 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:18:46,636 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:18:46,636 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:18:46,637 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:18:46,637 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:18:46,637 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:18:46,637 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:18:46,637 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:18:46,638 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:18:46,638 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:18:46,639 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:18:46,639 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:18:46,639 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:18:46,639 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:18:46,640 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:18:46,640 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:18:46,640 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:18:46,640 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:18:46,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:18:46,641 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:18:46,641 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:18:46,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:18:46,642 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:18:46,642 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:18:46,642 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:18:46,643 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:18:46,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:18:46,643 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:18:46,643 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:18:46,644 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:18:46,645 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_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ff439c9da308e48e314eaeb6f620d0560f5430b3c601570b5afd8d635a5b965 [2021-11-07 02:18:46,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:18:46,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:18:46,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:18:46,962 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:18:46,963 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:18:46,964 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i [2021-11-07 02:18:47,059 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/data/a81073b53/ec12dec94232410f990e173621059132/FLAG5abb153e6 [2021-11-07 02:18:47,900 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:18:47,900 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i [2021-11-07 02:18:47,946 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/data/a81073b53/ec12dec94232410f990e173621059132/FLAG5abb153e6 [2021-11-07 02:18:48,439 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/data/a81073b53/ec12dec94232410f990e173621059132 [2021-11-07 02:18:48,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:18:48,451 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:18:48,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:18:48,456 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:18:48,460 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:18:48,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:18:48" (1/1) ... [2021-11-07 02:18:48,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cd3fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:48, skipping insertion in model container [2021-11-07 02:18:48,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:18:48" (1/1) ... [2021-11-07 02:18:48,472 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:18:48,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:18:48,817 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_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i[4493,4506] [2021-11-07 02:18:48,826 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_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i[4553,4566] [2021-11-07 02:18:48,845 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:18:48,859 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:18:49,515 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:49,516 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:49,517 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:49,518 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:49,519 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:49,536 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:49,537 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:49,539 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:49,540 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:49,543 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:49,544 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:49,545 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:49,546 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:49,747 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:18:49,748 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:18:49,750 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:18:49,752 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:18:49,754 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:18:49,755 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:18:49,756 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:18:49,757 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:18:49,758 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:18:49,759 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:18:49,840 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:18:49,853 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 02:18:49,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@75c9e504 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:49, skipping insertion in model container [2021-11-07 02:18:49,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:18:49,854 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:18:49,857 INFO L168 Benchmark]: Toolchain (without parser) took 1404.65 ms. Allocated memory is still 127.9 MB. Free memory was 90.4 MB in the beginning and 80.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-11-07 02:18:49,857 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 83.9 MB. Free memory is still 42.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:18:49,863 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1398.16 ms. Allocated memory is still 127.9 MB. Free memory was 90.2 MB in the beginning and 80.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-11-07 02:18:49,865 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 83.9 MB. Free memory is still 42.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1398.16 ms. Allocated memory is still 127.9 MB. Free memory was 90.2 MB in the beginning and 80.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5922]: 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_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/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_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/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_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/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 9ff439c9da308e48e314eaeb6f620d0560f5430b3c601570b5afd8d635a5b965 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:18:52,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:18:52,330 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:18:52,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:18:52,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:18:52,402 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:18:52,404 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:18:52,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:18:52,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:18:52,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:18:52,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:18:52,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:18:52,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:18:52,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:18:52,435 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:18:52,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:18:52,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:18:52,444 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:18:52,446 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:18:52,453 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:18:52,456 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:18:52,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:18:52,461 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:18:52,464 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:18:52,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:18:52,475 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:18:52,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:18:52,478 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:18:52,479 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:18:52,480 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:18:52,480 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:18:52,481 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:18:52,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:18:52,485 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:18:52,487 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:18:52,487 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:18:52,488 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:18:52,488 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:18:52,489 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:18:52,491 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:18:52,492 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:18:52,493 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 02:18:52,523 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:18:52,524 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:18:52,525 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:18:52,525 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:18:52,525 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:18:52,526 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:18:52,526 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:18:52,526 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:18:52,526 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:18:52,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:18:52,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:18:52,528 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:18:52,528 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:18:52,528 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:18:52,528 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:18:52,529 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:18:52,529 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:18:52,529 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:18:52,529 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:18:52,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:18:52,530 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:18:52,530 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:18:52,530 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:18:52,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:18:52,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:18:52,531 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:18:52,531 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:18:52,532 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:18:52,532 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:18:52,532 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:18:52,532 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:18:52,533 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:18:52,533 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_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ff439c9da308e48e314eaeb6f620d0560f5430b3c601570b5afd8d635a5b965 [2021-11-07 02:18:52,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:18:53,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:18:53,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:18:53,039 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:18:53,040 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:18:53,041 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i [2021-11-07 02:18:53,137 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/data/92bbe8f3b/19b1bef2f348477cb0489c239a5e5ec5/FLAG3d23093c5 [2021-11-07 02:18:54,066 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:18:54,068 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i [2021-11-07 02:18:54,110 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/data/92bbe8f3b/19b1bef2f348477cb0489c239a5e5ec5/FLAG3d23093c5 [2021-11-07 02:18:54,571 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/data/92bbe8f3b/19b1bef2f348477cb0489c239a5e5ec5 [2021-11-07 02:18:54,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:18:54,577 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:18:54,580 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:18:54,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:18:54,584 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:18:54,585 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:18:54" (1/1) ... [2021-11-07 02:18:54,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4346e35f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:54, skipping insertion in model container [2021-11-07 02:18:54,587 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:18:54" (1/1) ... [2021-11-07 02:18:54,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:18:54,681 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:18:55,001 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_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i[4493,4506] [2021-11-07 02:18:55,008 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_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i[4553,4566] [2021-11-07 02:18:55,027 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:18:55,033 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:18:55,892 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:55,898 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:55,900 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:55,901 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:55,904 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:55,932 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:55,933 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:55,938 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:55,941 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:55,945 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:55,948 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:55,950 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:55,952 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:56,199 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:18:56,201 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:18:56,203 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:18:56,204 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:18:56,206 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:18:56,207 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:18:56,208 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:18:56,210 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:18:56,211 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:18:56,212 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:18:56,310 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:18:56,333 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:18:56,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:18:56,392 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_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i[4493,4506] [2021-11-07 02:18:56,393 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_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i[4553,4566] [2021-11-07 02:18:56,398 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:18:56,402 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:18:56,516 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:56,523 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:56,524 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:56,525 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:56,530 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:56,541 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:56,548 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:56,549 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:56,550 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:56,555 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:56,558 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:56,559 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:56,559 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:56,607 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:18:56,608 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:18:56,620 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:18:56,622 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:18:56,624 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:18:56,625 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:18:56,626 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:18:56,627 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:18:56,628 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:18:56,629 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:18:56,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:18:56,692 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:18:56,708 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_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i[4493,4506] [2021-11-07 02:18:56,709 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_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i[4553,4566] [2021-11-07 02:18:56,714 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:18:56,715 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:18:56,792 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:56,792 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:56,793 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:56,793 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:56,794 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:56,804 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:56,805 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:56,807 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:56,807 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:56,809 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:56,810 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:56,811 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:56,811 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:18:56,834 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:18:56,836 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:18:56,837 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:18:56,838 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:18:56,839 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:18:56,840 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:18:56,841 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:18:56,842 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:18:56,842 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:18:56,843 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:18:56,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:18:57,176 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:18:57,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:57 WrapperNode [2021-11-07 02:18:57,177 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:18:57,179 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:18:57,179 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:18:57,179 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:18:57,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:57" (1/1) ... [2021-11-07 02:18:57,294 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:57" (1/1) ... [2021-11-07 02:18:57,371 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:18:57,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:18:57,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:18:57,373 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:18:57,384 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:57" (1/1) ... [2021-11-07 02:18:57,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:57" (1/1) ... [2021-11-07 02:18:57,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:57" (1/1) ... [2021-11-07 02:18:57,399 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:57" (1/1) ... [2021-11-07 02:18:57,418 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:57" (1/1) ... [2021-11-07 02:18:57,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:57" (1/1) ... [2021-11-07 02:18:57,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:57" (1/1) ... [2021-11-07 02:18:57,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:18:57,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:18:57,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:18:57,484 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:18:57,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:57" (1/1) ... [2021-11-07 02:18:57,493 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:18:57,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:18:57,523 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:18:57,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:18:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:18:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:18:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 02:18:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:18:57,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:18:57,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 02:18:57,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 02:18:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:18:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 02:18:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 02:19:00,476 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:19:00,476 INFO L299 CfgBuilder]: Removed 36 assume(true) statements. [2021-11-07 02:19:00,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:19:00 BoogieIcfgContainer [2021-11-07 02:19:00,479 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:19:00,481 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:19:00,481 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:19:00,484 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:19:00,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:18:54" (1/3) ... [2021-11-07 02:19:00,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@642a0857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:19:00, skipping insertion in model container [2021-11-07 02:19:00,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:57" (2/3) ... [2021-11-07 02:19:00,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@642a0857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:19:00, skipping insertion in model container [2021-11-07 02:19:00,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:19:00" (3/3) ... [2021-11-07 02:19:00,488 INFO L111 eAbstractionObserver]: Analyzing ICFG memset_using_uint64_harness.i [2021-11-07 02:19:00,494 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:19:00,495 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-07 02:19:00,546 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:19:00,552 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 02:19:00,553 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-07 02:19:00,569 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 53 states have (on average 1.490566037735849) internal successors, (79), 56 states have internal predecessors, (79), 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 02:19:00,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 02:19:00,576 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:19:00,577 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] [2021-11-07 02:19:00,577 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:19:00,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:19:00,584 INFO L85 PathProgramCache]: Analyzing trace with hash 546734931, now seen corresponding path program 1 times [2021-11-07 02:19:00,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:19:00,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [942065111] [2021-11-07 02:19:00,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:19:00,601 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:19:00,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:19:00,605 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:19:00,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:19:00,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:19:00,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 02:19:00,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:19:01,117 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 02:19:01,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:19:01,264 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 02:19:01,265 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:19:01,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [942065111] [2021-11-07 02:19:01,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [942065111] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:19:01,266 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:19:01,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 02:19:01,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173045517] [2021-11-07 02:19:01,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 02:19:01,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:19:01,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 02:19:01,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:19:01,295 INFO L87 Difference]: Start difference. First operand has 57 states, 53 states have (on average 1.490566037735849) internal successors, (79), 56 states have internal predecessors, (79), 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 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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 02:19:01,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:19:01,318 INFO L93 Difference]: Finished difference Result 111 states and 154 transitions. [2021-11-07 02:19:01,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 02:19:01,319 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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 31 [2021-11-07 02:19:01,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:19:01,328 INFO L225 Difference]: With dead ends: 111 [2021-11-07 02:19:01,328 INFO L226 Difference]: Without dead ends: 51 [2021-11-07 02:19:01,330 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 60 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 02:19:01,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-11-07 02:19:01,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-11-07 02:19:01,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 48 states have (on average 1.2916666666666667) internal successors, (62), 50 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 02:19:01,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 62 transitions. [2021-11-07 02:19:01,370 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 62 transitions. Word has length 31 [2021-11-07 02:19:01,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:19:01,371 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 62 transitions. [2021-11-07 02:19:01,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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 02:19:01,372 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 62 transitions. [2021-11-07 02:19:01,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 02:19:01,373 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:19:01,373 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] [2021-11-07 02:19:01,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-07 02:19:01,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:19:01,592 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:19:01,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:19:01,593 INFO L85 PathProgramCache]: Analyzing trace with hash 2045186899, now seen corresponding path program 1 times [2021-11-07 02:19:01,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:19:01,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1989665552] [2021-11-07 02:19:01,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:19:01,595 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:19:01,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:19:01,596 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:19:01,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:19:01,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:19:01,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 02:19:01,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:19:02,651 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 02:19:02,651 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:19:03,189 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 02:19:03,189 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:19:03,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1989665552] [2021-11-07 02:19:03,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1989665552] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:19:03,190 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:19:03,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-11-07 02:19:03,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569840087] [2021-11-07 02:19:03,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 02:19:03,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:19:03,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 02:19:03,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-07 02:19:03,196 INFO L87 Difference]: Start difference. First operand 51 states and 62 transitions. Second operand has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:19:03,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:19:03,919 INFO L93 Difference]: Finished difference Result 139 states and 167 transitions. [2021-11-07 02:19:03,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 02:19:03,920 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-07 02:19:03,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:19:03,922 INFO L225 Difference]: With dead ends: 139 [2021-11-07 02:19:03,922 INFO L226 Difference]: Without dead ends: 101 [2021-11-07 02:19:03,924 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-11-07 02:19:03,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-11-07 02:19:03,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 68. [2021-11-07 02:19:03,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 65 states have (on average 1.2153846153846153) internal successors, (79), 67 states have internal predecessors, (79), 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 02:19:03,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 79 transitions. [2021-11-07 02:19:03,936 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 79 transitions. Word has length 31 [2021-11-07 02:19:03,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:19:03,937 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 79 transitions. [2021-11-07 02:19:03,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:19:03,937 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 79 transitions. [2021-11-07 02:19:03,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 02:19:03,939 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:19:03,939 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] [2021-11-07 02:19:03,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:19:04,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:19:04,158 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:19:04,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:19:04,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1717651489, now seen corresponding path program 1 times [2021-11-07 02:19:04,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:19:04,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1819141423] [2021-11-07 02:19:04,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:19:04,160 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:19:04,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:19:04,161 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:19:04,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:19:04,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:19:04,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 02:19:04,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:19:05,134 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 02:19:05,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:19:05,471 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 02:19:05,471 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:19:05,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1819141423] [2021-11-07 02:19:05,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1819141423] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:19:05,472 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:19:05,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 6] imperfect sequences [] total 12 [2021-11-07 02:19:05,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560641226] [2021-11-07 02:19:05,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 02:19:05,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:19:05,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 02:19:05,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-11-07 02:19:05,475 INFO L87 Difference]: Start difference. First operand 68 states and 79 transitions. Second operand has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 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 02:19:08,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:19:08,492 INFO L93 Difference]: Finished difference Result 120 states and 134 transitions. [2021-11-07 02:19:08,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 02:19:08,493 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 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 31 [2021-11-07 02:19:08,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:19:08,495 INFO L225 Difference]: With dead ends: 120 [2021-11-07 02:19:08,495 INFO L226 Difference]: Without dead ends: 96 [2021-11-07 02:19:08,496 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-11-07 02:19:08,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-11-07 02:19:08,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 72. [2021-11-07 02:19:08,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 69 states have (on average 1.2028985507246377) internal successors, (83), 71 states have internal predecessors, (83), 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 02:19:08,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 83 transitions. [2021-11-07 02:19:08,506 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 83 transitions. Word has length 31 [2021-11-07 02:19:08,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:19:08,506 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 83 transitions. [2021-11-07 02:19:08,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 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 02:19:08,507 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 83 transitions. [2021-11-07 02:19:08,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 02:19:08,508 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:19:08,509 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] [2021-11-07 02:19:08,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:19:08,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:19:08,723 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:19:08,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:19:08,724 INFO L85 PathProgramCache]: Analyzing trace with hash 57355873, now seen corresponding path program 1 times [2021-11-07 02:19:08,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:19:08,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [708892703] [2021-11-07 02:19:08,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:19:08,726 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:19:08,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:19:08,727 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:19:08,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:19:08,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:19:08,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 02:19:08,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:19:09,510 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 02:19:09,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:19:09,952 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 02:19:09,953 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:19:09,953 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [708892703] [2021-11-07 02:19:09,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [708892703] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:19:09,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:19:09,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-07 02:19:09,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373265734] [2021-11-07 02:19:09,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:19:09,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:19:09,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:19:09,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:19:09,956 INFO L87 Difference]: Start difference. First operand 72 states and 83 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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 02:19:10,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:19:10,100 INFO L93 Difference]: Finished difference Result 77 states and 88 transitions. [2021-11-07 02:19:10,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:19:10,101 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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 31 [2021-11-07 02:19:10,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:19:10,102 INFO L225 Difference]: With dead ends: 77 [2021-11-07 02:19:10,102 INFO L226 Difference]: Without dead ends: 75 [2021-11-07 02:19:10,103 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:19:10,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-11-07 02:19:10,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 70. [2021-11-07 02:19:10,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 68 states have (on average 1.1911764705882353) internal successors, (81), 69 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:19:10,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 81 transitions. [2021-11-07 02:19:10,115 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 81 transitions. Word has length 31 [2021-11-07 02:19:10,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:19:10,115 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 81 transitions. [2021-11-07 02:19:10,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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 02:19:10,116 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 81 transitions. [2021-11-07 02:19:10,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-07 02:19:10,118 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:19:10,118 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] [2021-11-07 02:19:10,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 02:19:10,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:19:10,340 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:19:10,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:19:10,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1925927232, now seen corresponding path program 1 times [2021-11-07 02:19:10,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:19:10,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [629536227] [2021-11-07 02:19:10,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:19:10,343 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:19:10,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:19:10,344 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:19:10,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 02:19:10,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:19:10,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 02:19:10,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:19:11,062 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 02:19:11,062 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:19:11,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:19:11,321 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:19:11,321 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [629536227] [2021-11-07 02:19:11,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [629536227] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:19:11,321 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:19:11,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 5] imperfect sequences [] total 9 [2021-11-07 02:19:11,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873164722] [2021-11-07 02:19:11,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 02:19:11,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:19:11,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 02:19:11,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-07 02:19:11,324 INFO L87 Difference]: Start difference. First operand 70 states and 81 transitions. Second operand has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 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 02:19:11,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:19:11,833 INFO L93 Difference]: Finished difference Result 97 states and 107 transitions. [2021-11-07 02:19:11,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 02:19:11,834 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 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 36 [2021-11-07 02:19:11,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:19:11,836 INFO L225 Difference]: With dead ends: 97 [2021-11-07 02:19:11,836 INFO L226 Difference]: Without dead ends: 82 [2021-11-07 02:19:11,837 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2021-11-07 02:19:11,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-11-07 02:19:11,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 74. [2021-11-07 02:19:11,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 72 states have (on average 1.1805555555555556) internal successors, (85), 73 states have internal predecessors, (85), 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 02:19:11,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 85 transitions. [2021-11-07 02:19:11,849 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 85 transitions. Word has length 36 [2021-11-07 02:19:11,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:19:11,849 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 85 transitions. [2021-11-07 02:19:11,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 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 02:19:11,850 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 85 transitions. [2021-11-07 02:19:11,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-07 02:19:11,852 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:19:11,852 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] [2021-11-07 02:19:11,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-07 02:19:12,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:19:12,059 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:19:12,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:19:12,060 INFO L85 PathProgramCache]: Analyzing trace with hash 192927141, now seen corresponding path program 1 times [2021-11-07 02:19:12,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:19:12,061 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1059203827] [2021-11-07 02:19:12,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:19:12,062 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:19:12,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:19:12,064 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:19:12,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 02:19:12,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:19:12,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 02:19:12,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:19:13,311 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 02:19:13,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:19:13,544 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 02:19:13,544 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:19:13,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1059203827] [2021-11-07 02:19:13,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1059203827] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:19:13,545 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:19:13,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 4] imperfect sequences [] total 10 [2021-11-07 02:19:13,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850452566] [2021-11-07 02:19:13,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 02:19:13,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:19:13,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 02:19:13,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-07 02:19:13,548 INFO L87 Difference]: Start difference. First operand 74 states and 85 transitions. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 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 02:19:23,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:19:23,119 INFO L93 Difference]: Finished difference Result 137 states and 151 transitions. [2021-11-07 02:19:23,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 02:19:23,121 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 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 37 [2021-11-07 02:19:23,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:19:23,122 INFO L225 Difference]: With dead ends: 137 [2021-11-07 02:19:23,123 INFO L226 Difference]: Without dead ends: 118 [2021-11-07 02:19:23,123 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2021-11-07 02:19:23,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-07 02:19:23,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 76. [2021-11-07 02:19:23,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 74 states have (on average 1.1756756756756757) internal successors, (87), 75 states have internal predecessors, (87), 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 02:19:23,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 87 transitions. [2021-11-07 02:19:23,139 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 87 transitions. Word has length 37 [2021-11-07 02:19:23,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:19:23,140 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 87 transitions. [2021-11-07 02:19:23,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 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 02:19:23,140 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 87 transitions. [2021-11-07 02:19:23,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-07 02:19:23,142 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:19:23,147 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] [2021-11-07 02:19:23,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 02:19:23,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:19:23,367 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:19:23,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:19:23,367 INFO L85 PathProgramCache]: Analyzing trace with hash 451092579, now seen corresponding path program 1 times [2021-11-07 02:19:23,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:19:23,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1244912402] [2021-11-07 02:19:23,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:19:23,368 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:19:23,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:19:23,369 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:19:23,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 02:19:23,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:19:23,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 02:19:23,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:19:24,401 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 02:19:24,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:19:24,991 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 02:19:24,991 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:19:24,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1244912402] [2021-11-07 02:19:24,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1244912402] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:19:24,992 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:19:24,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 8] imperfect sequences [] total 15 [2021-11-07 02:19:24,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35332027] [2021-11-07 02:19:24,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-07 02:19:24,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:19:24,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-07 02:19:24,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2021-11-07 02:19:24,994 INFO L87 Difference]: Start difference. First operand 76 states and 87 transitions. Second operand has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 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 02:19:27,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:19:27,122 INFO L93 Difference]: Finished difference Result 226 states and 264 transitions. [2021-11-07 02:19:27,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-07 02:19:27,124 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 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 37 [2021-11-07 02:19:27,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:19:27,125 INFO L225 Difference]: With dead ends: 226 [2021-11-07 02:19:27,125 INFO L226 Difference]: Without dead ends: 188 [2021-11-07 02:19:27,127 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=251, Invalid=619, Unknown=0, NotChecked=0, Total=870 [2021-11-07 02:19:27,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-11-07 02:19:27,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 103. [2021-11-07 02:19:27,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 101 states have (on average 1.1485148514851484) internal successors, (116), 102 states have internal predecessors, (116), 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 02:19:27,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 116 transitions. [2021-11-07 02:19:27,142 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 116 transitions. Word has length 37 [2021-11-07 02:19:27,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:19:27,143 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 116 transitions. [2021-11-07 02:19:27,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 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 02:19:27,144 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 116 transitions. [2021-11-07 02:19:27,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-07 02:19:27,146 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:19:27,146 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] [2021-11-07 02:19:27,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 02:19:27,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:19:27,367 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:19:27,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:19:27,368 INFO L85 PathProgramCache]: Analyzing trace with hash -13077673, now seen corresponding path program 1 times [2021-11-07 02:19:27,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:19:27,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1696363043] [2021-11-07 02:19:27,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:19:27,369 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:19:27,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:19:27,370 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:19:27,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 02:19:27,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:19:27,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 02:19:27,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:19:27,970 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 02:19:27,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:19:28,330 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 02:19:28,331 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:19:28,331 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1696363043] [2021-11-07 02:19:28,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1696363043] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:19:28,332 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:19:28,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [] total 11 [2021-11-07 02:19:28,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899381872] [2021-11-07 02:19:28,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 02:19:28,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:19:28,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 02:19:28,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-07 02:19:28,334 INFO L87 Difference]: Start difference. First operand 103 states and 116 transitions. Second operand has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 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 02:19:36,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:19:36,120 INFO L93 Difference]: Finished difference Result 149 states and 165 transitions. [2021-11-07 02:19:36,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 02:19:36,121 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 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 37 [2021-11-07 02:19:36,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:19:36,122 INFO L225 Difference]: With dead ends: 149 [2021-11-07 02:19:36,122 INFO L226 Difference]: Without dead ends: 106 [2021-11-07 02:19:36,123 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2021-11-07 02:19:36,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-11-07 02:19:36,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 86. [2021-11-07 02:19:36,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 84 states have (on average 1.1666666666666667) internal successors, (98), 85 states have internal predecessors, (98), 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 02:19:36,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 98 transitions. [2021-11-07 02:19:36,135 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 98 transitions. Word has length 37 [2021-11-07 02:19:36,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:19:36,135 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 98 transitions. [2021-11-07 02:19:36,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 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 02:19:36,136 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 98 transitions. [2021-11-07 02:19:36,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-07 02:19:36,138 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:19:36,138 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] [2021-11-07 02:19:36,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 02:19:36,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:19:36,358 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:19:36,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:19:36,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1284407490, now seen corresponding path program 1 times [2021-11-07 02:19:36,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:19:36,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [829200806] [2021-11-07 02:19:36,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:19:36,360 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:19:36,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:19:36,361 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:19:36,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 02:19:36,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:19:36,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 02:19:36,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:19:37,181 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 02:19:37,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:19:37,429 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 02:19:37,430 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:19:37,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [829200806] [2021-11-07 02:19:37,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [829200806] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:19:37,430 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:19:37,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 5] imperfect sequences [] total 9 [2021-11-07 02:19:37,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635020275] [2021-11-07 02:19:37,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 02:19:37,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:19:37,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 02:19:37,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-07 02:19:37,433 INFO L87 Difference]: Start difference. First operand 86 states and 98 transitions. Second operand has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 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 02:19:37,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:19:37,931 INFO L93 Difference]: Finished difference Result 94 states and 105 transitions. [2021-11-07 02:19:37,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 02:19:37,933 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 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 38 [2021-11-07 02:19:37,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:19:37,934 INFO L225 Difference]: With dead ends: 94 [2021-11-07 02:19:37,934 INFO L226 Difference]: Without dead ends: 61 [2021-11-07 02:19:37,934 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2021-11-07 02:19:37,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-11-07 02:19:37,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-11-07 02:19:37,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 59 states have (on average 1.2203389830508475) internal successors, (72), 60 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:19:37,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 72 transitions. [2021-11-07 02:19:37,941 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 72 transitions. Word has length 38 [2021-11-07 02:19:37,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:19:37,942 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 72 transitions. [2021-11-07 02:19:37,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 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 02:19:37,942 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 72 transitions. [2021-11-07 02:19:37,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 02:19:37,950 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:19:37,951 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] [2021-11-07 02:19:37,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 02:19:38,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:19:38,152 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:19:38,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:19:38,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1330474785, now seen corresponding path program 1 times [2021-11-07 02:19:38,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:19:38,153 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [319763542] [2021-11-07 02:19:38,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:19:38,153 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:19:38,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:19:38,154 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:19:38,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 02:19:38,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:19:38,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 02:19:38,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:19:39,506 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:19:39,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:19:40,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:19:40,590 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:19:40,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [319763542] [2021-11-07 02:19:40,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [319763542] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:19:40,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [913413481] [2021-11-07 02:19:40,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:19:40,591 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:19:40,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:19:40,594 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:19:40,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-11-07 02:19:41,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:19:41,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 02:19:41,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:19:41,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:19:41,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:19:42,574 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:19:42,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [913413481] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:19:42,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107149456] [2021-11-07 02:19:42,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:19:42,575 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:19:42,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:19:42,577 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:19:42,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-07 02:19:42,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:19:42,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 02:19:42,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:19:43,267 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:19:43,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:19:43,521 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:19:43,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107149456] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:19:43,522 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-07 02:19:43,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10, 10, 10, 10] total 28 [2021-11-07 02:19:43,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986622135] [2021-11-07 02:19:43,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-07 02:19:43,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:19:43,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-07 02:19:43,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=627, Unknown=0, NotChecked=0, Total=756 [2021-11-07 02:19:43,524 INFO L87 Difference]: Start difference. First operand 61 states and 72 transitions. Second operand has 28 states, 28 states have (on average 2.7857142857142856) internal successors, (78), 28 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:19:46,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:19:46,378 INFO L93 Difference]: Finished difference Result 194 states and 231 transitions. [2021-11-07 02:19:46,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 02:19:46,386 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.7857142857142856) internal successors, (78), 28 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-07 02:19:46,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:19:46,387 INFO L225 Difference]: With dead ends: 194 [2021-11-07 02:19:46,387 INFO L226 Difference]: Without dead ends: 156 [2021-11-07 02:19:46,389 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 201 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=376, Invalid=1264, Unknown=0, NotChecked=0, Total=1640 [2021-11-07 02:19:46,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-11-07 02:19:46,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 82. [2021-11-07 02:19:46,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 80 states have (on average 1.1875) internal successors, (95), 81 states have internal predecessors, (95), 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 02:19:46,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 95 transitions. [2021-11-07 02:19:46,400 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 95 transitions. Word has length 39 [2021-11-07 02:19:46,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:19:46,400 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 95 transitions. [2021-11-07 02:19:46,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.7857142857142856) internal successors, (78), 28 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:19:46,401 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 95 transitions. [2021-11-07 02:19:46,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 02:19:46,402 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:19:46,402 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] [2021-11-07 02:19:46,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 02:19:46,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-07 02:19:46,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-11-07 02:19:47,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 02:19:47,017 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:19:47,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:19:47,017 INFO L85 PathProgramCache]: Analyzing trace with hash -649514281, now seen corresponding path program 1 times [2021-11-07 02:19:47,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:19:47,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1834787676] [2021-11-07 02:19:47,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:19:47,018 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:19:47,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:19:47,020 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:19:47,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a742a5c3-00c8-4ae9-95e9-5eb0dffdb904/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-07 02:19:47,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:19:47,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 53 conjunts are in the unsatisfiable core [2021-11-07 02:19:47,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:19:47,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2021-11-07 02:19:48,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-07 02:19:50,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-07 02:19:51,809 INFO L354 Elim1Store]: treesize reduction 50, result has 12.3 percent of original size [2021-11-07 02:19:51,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 66 treesize of output 48 [2021-11-07 02:19:51,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:19:51,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:19:55,868 INFO L354 Elim1Store]: treesize reduction 22, result has 62.1 percent of original size [2021-11-07 02:19:55,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 188 treesize of output 173 [2021-11-07 02:19:55,972 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:19:55,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 173 treesize of output 185 [2021-11-07 02:19:56,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-07 02:19:58,163 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:19:58,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 34 [2021-11-07 02:19:58,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2021-11-07 02:19:58,829 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:19:58,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 228 treesize of output 236