./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs --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 846a565d6a742f245ca362c4e2fb63bb4d14b5e5473527f5da84e078cffb2df4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:16:49,415 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:16:49,418 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:16:49,465 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:16:49,466 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:16:49,467 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:16:49,469 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:16:49,472 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:16:49,474 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:16:49,476 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:16:49,477 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:16:49,479 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:16:49,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:16:49,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:16:49,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:16:49,484 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:16:49,485 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:16:49,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:16:49,488 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:16:49,491 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:16:49,493 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:16:49,495 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:16:49,496 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:16:49,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:16:49,501 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:16:49,502 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:16:49,502 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:16:49,503 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:16:49,504 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:16:49,505 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:16:49,506 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:16:49,507 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:16:49,508 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:16:49,509 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:16:49,510 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:16:49,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:16:49,514 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:16:49,515 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:16:49,515 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:16:49,517 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:16:49,518 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:16:49,521 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:16:49,547 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:16:49,547 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:16:49,548 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:16:49,548 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:16:49,549 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:16:49,549 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:16:49,549 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:16:49,549 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:16:49,550 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:16:49,550 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:16:49,550 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:16:49,550 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:16:49,550 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:16:49,551 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:16:49,551 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:16:49,551 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:16:49,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:16:49,552 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:16:49,552 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:16:49,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:16:49,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:16:49,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:16:49,553 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:16:49,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:16:49,554 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:16:49,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:16:49,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:16:49,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:16:49,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:16:49,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:16:49,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:16:49,555 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:16:49,556 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:16:49,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:16:49,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:16:49,556 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:16:49,559 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:16:49,560 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_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 846a565d6a742f245ca362c4e2fb63bb4d14b5e5473527f5da84e078cffb2df4 [2021-11-19 14:16:49,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:16:49,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:16:49,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:16:49,899 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:16:49,899 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:16:49,901 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i [2021-11-19 14:16:49,979 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/data/c3fa71c67/012c8bb030ff4fe5b90a50e31bd06b40/FLAGd032a5bff [2021-11-19 14:16:50,847 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:16:50,848 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i [2021-11-19 14:16:50,899 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/data/c3fa71c67/012c8bb030ff4fe5b90a50e31bd06b40/FLAGd032a5bff [2021-11-19 14:16:51,326 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/data/c3fa71c67/012c8bb030ff4fe5b90a50e31bd06b40 [2021-11-19 14:16:51,330 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:16:51,333 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:16:51,336 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:16:51,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:16:51,340 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:16:51,341 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:16:51" (1/1) ... [2021-11-19 14:16:51,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9de86f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:51, skipping insertion in model container [2021-11-19 14:16:51,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:16:51" (1/1) ... [2021-11-19 14:16:51,353 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:16:51,520 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:16:51,920 WARN L230 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_7a62c5c5-9867-4ae7-85c0-aef32c30d379/sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i[4504,4517] [2021-11-19 14:16:51,929 WARN L230 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_7a62c5c5-9867-4ae7-85c0-aef32c30d379/sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i[4564,4577] [2021-11-19 14:16:51,964 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:16:51,973 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:16:53,261 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:53,262 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:53,262 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:53,263 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:53,265 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:53,291 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:53,292 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:53,294 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:53,305 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:53,309 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:53,310 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:53,311 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:53,312 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:53,801 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:16:53,802 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:16:53,803 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:16:53,806 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:16:53,808 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:16:53,808 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:16:53,809 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:16:53,810 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:16:53,811 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:16:53,811 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:16:54,086 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:16:54,494 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:54,497 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:54,537 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:54,540 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:54,548 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:54,549 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:54,574 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:54,575 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:54,576 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:54,576 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:54,577 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:54,585 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:54,586 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:54,634 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:16:54,687 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) [2021-11-19 14:16:54,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7e155227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:54, skipping insertion in model container [2021-11-19 14:16:54,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:16:54,688 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:16:54,690 INFO L158 Benchmark]: Toolchain (without parser) took 3355.63ms. Allocated memory is still 115.3MB. Free memory was 71.1MB in the beginning and 52.3MB in the end (delta: 18.8MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. [2021-11-19 14:16:54,691 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 75.5MB. Free memory was 49.8MB in the beginning and 49.7MB in the end (delta: 30.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:16:54,692 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3351.47ms. Allocated memory is still 115.3MB. Free memory was 71.1MB in the beginning and 52.3MB in the end (delta: 18.8MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. [2021-11-19 14:16:54,694 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 75.5MB. Free memory was 49.8MB in the beginning and 49.7MB in the end (delta: 30.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3351.47ms. Allocated memory is still 115.3MB. Free memory was 71.1MB in the beginning and 52.3MB in the end (delta: 18.8MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7051]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs --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 846a565d6a742f245ca362c4e2fb63bb4d14b5e5473527f5da84e078cffb2df4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:16:56,944 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:16:56,946 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:16:57,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:16:57,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:16:57,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:16:57,016 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:16:57,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:16:57,021 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:16:57,022 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:16:57,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:16:57,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:16:57,026 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:16:57,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:16:57,029 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:16:57,031 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:16:57,032 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:16:57,034 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:16:57,036 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:16:57,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:16:57,042 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:16:57,043 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:16:57,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:16:57,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:16:57,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:16:57,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:16:57,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:16:57,053 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:16:57,053 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:16:57,055 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:16:57,055 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:16:57,056 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:16:57,057 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:16:57,058 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:16:57,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:16:57,060 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:16:57,061 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:16:57,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:16:57,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:16:57,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:16:57,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:16:57,065 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:16:57,093 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:16:57,094 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:16:57,095 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:16:57,095 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:16:57,095 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:16:57,096 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:16:57,096 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:16:57,096 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:16:57,096 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:16:57,096 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:16:57,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:16:57,098 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:16:57,098 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:16:57,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:16:57,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:16:57,099 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:16:57,099 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:16:57,099 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:16:57,099 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:16:57,099 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:16:57,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:16:57,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:16:57,100 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:16:57,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:16:57,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:16:57,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:16:57,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:16:57,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:16:57,102 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:16:57,102 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:16:57,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:16:57,102 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:16:57,102 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:16:57,103 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_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 846a565d6a742f245ca362c4e2fb63bb4d14b5e5473527f5da84e078cffb2df4 [2021-11-19 14:16:57,497 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:16:57,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:16:57,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:16:57,524 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:16:57,525 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:16:57,526 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i [2021-11-19 14:16:57,615 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/data/476eb284e/7a1e06c4d79f4cc7ac7d26f31e314a68/FLAGfc9239bbb [2021-11-19 14:16:58,526 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:16:58,527 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i [2021-11-19 14:16:58,582 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/data/476eb284e/7a1e06c4d79f4cc7ac7d26f31e314a68/FLAGfc9239bbb [2021-11-19 14:16:58,956 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/data/476eb284e/7a1e06c4d79f4cc7ac7d26f31e314a68 [2021-11-19 14:16:58,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:16:58,962 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:16:58,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:16:58,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:16:58,969 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:16:58,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:16:58" (1/1) ... [2021-11-19 14:16:58,972 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a67e065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:58, skipping insertion in model container [2021-11-19 14:16:58,972 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:16:58" (1/1) ... [2021-11-19 14:16:58,980 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:16:59,136 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:16:59,532 WARN L230 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_7a62c5c5-9867-4ae7-85c0-aef32c30d379/sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i[4504,4517] [2021-11-19 14:16:59,542 WARN L230 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_7a62c5c5-9867-4ae7-85c0-aef32c30d379/sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i[4564,4577] [2021-11-19 14:16:59,576 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:16:59,588 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:17:00,906 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:00,908 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:00,908 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:00,909 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:00,911 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:00,946 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:00,946 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:00,948 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:00,949 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:00,951 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:00,952 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:00,953 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:00,953 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:01,468 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:17:01,470 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:17:01,475 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:17:01,476 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:17:01,478 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:17:01,479 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:17:01,480 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:17:01,481 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:17:01,481 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:17:01,482 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:17:01,714 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:17:02,109 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,110 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,133 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,134 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,140 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,141 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,155 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,156 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,157 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,157 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,158 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,158 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,159 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,193 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:17:02,237 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:17:02,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:17:02,323 WARN L230 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_7a62c5c5-9867-4ae7-85c0-aef32c30d379/sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i[4504,4517] [2021-11-19 14:17:02,323 WARN L230 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_7a62c5c5-9867-4ae7-85c0-aef32c30d379/sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i[4564,4577] [2021-11-19 14:17:02,327 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:17:02,328 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:17:02,371 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,372 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,372 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,373 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,373 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,380 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,380 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,381 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,382 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,383 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,384 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,384 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,385 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,422 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:17:02,429 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:17:02,429 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:17:02,430 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:17:02,431 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:17:02,432 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:17:02,435 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:17:02,436 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:17:02,436 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:17:02,437 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:17:02,470 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:17:02,624 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,625 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,634 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,635 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,638 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,638 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,646 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,647 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,648 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,648 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,649 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,649 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,650 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,670 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:17:02,726 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:17:02,752 WARN L230 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_7a62c5c5-9867-4ae7-85c0-aef32c30d379/sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i[4504,4517] [2021-11-19 14:17:02,753 WARN L230 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_7a62c5c5-9867-4ae7-85c0-aef32c30d379/sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i[4564,4577] [2021-11-19 14:17:02,755 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:17:02,756 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:17:02,793 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,794 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,795 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,795 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,796 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,804 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,805 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,806 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,807 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,810 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,811 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,811 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,812 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,843 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:17:02,845 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:17:02,846 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:17:02,846 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:17:02,847 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:17:02,848 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:17:02,848 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:17:02,849 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:17:02,849 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:17:02,850 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:17:02,870 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:17:02,993 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:02,993 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:03,001 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:03,001 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:03,004 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:03,004 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:03,013 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:03,014 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:03,014 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:03,015 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:03,015 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:03,015 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:03,016 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:03,035 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:17:03,497 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:17:03,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:17:03 WrapperNode [2021-11-19 14:17:03,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:17:03,499 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:17:03,499 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:17:03,499 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:17:03,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:17:03" (1/1) ... [2021-11-19 14:17:03,660 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:17:03" (1/1) ... [2021-11-19 14:17:03,733 INFO L137 Inliner]: procedures = 796, calls = 2435, calls flagged for inlining = 70, calls inlined = 11, statements flattened = 600 [2021-11-19 14:17:03,733 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:17:03,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:17:03,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:17:03,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:17:03,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:17:03" (1/1) ... [2021-11-19 14:17:03,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:17:03" (1/1) ... [2021-11-19 14:17:03,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:17:03" (1/1) ... [2021-11-19 14:17:03,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:17:03" (1/1) ... [2021-11-19 14:17:03,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:17:03" (1/1) ... [2021-11-19 14:17:03,819 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:17:03" (1/1) ... [2021-11-19 14:17:03,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:17:03" (1/1) ... [2021-11-19 14:17:03,840 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:17:03,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:17:03,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:17:03,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:17:03,842 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:17:03" (1/1) ... [2021-11-19 14:17:03,849 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:17:03,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:17:03,888 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:17:03,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:17:03,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-19 14:17:03,943 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-19 14:17:03,949 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-19 14:17:03,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-19 14:17:03,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-19 14:17:03,949 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2021-11-19 14:17:03,950 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2021-11-19 14:17:03,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:17:03,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:17:03,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:17:03,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:17:03,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:17:03,950 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-19 14:17:03,950 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-19 14:17:03,951 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-19 14:17:03,951 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-19 14:17:03,952 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-19 14:17:03,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:17:03,952 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2021-11-19 14:17:03,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2021-11-19 14:17:03,952 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-19 14:17:03,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:17:03,952 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-19 14:17:03,953 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-19 14:17:03,953 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2021-11-19 14:17:03,953 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2021-11-19 14:17:03,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:17:03,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:17:03,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:17:03,954 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_get_entry_count [2021-11-19 14:17:03,954 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_get_entry_count [2021-11-19 14:17:03,954 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2021-11-19 14:17:03,954 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2021-11-19 14:17:03,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:17:03,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:17:03,954 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-19 14:17:03,955 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-19 14:17:03,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:17:03,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:17:03,955 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2021-11-19 14:17:03,955 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2021-11-19 14:17:03,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:17:03,956 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-19 14:17:03,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-19 14:17:03,956 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2021-11-19 14:17:03,956 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2021-11-19 14:17:04,304 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:17:04,306 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:17:07,969 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:17:07,976 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:17:07,976 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 14:17:07,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:17:07 BoogieIcfgContainer [2021-11-19 14:17:07,978 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:17:07,980 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:17:07,981 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:17:07,983 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:17:07,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:16:58" (1/3) ... [2021-11-19 14:17:07,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22e7ae09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:17:07, skipping insertion in model container [2021-11-19 14:17:07,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:17:03" (2/3) ... [2021-11-19 14:17:07,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22e7ae09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:17:07, skipping insertion in model container [2021-11-19 14:17:07,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:17:07" (3/3) ... [2021-11-19 14:17:07,987 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_table_get_entry_count_harness.i [2021-11-19 14:17:07,992 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:17:07,992 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:17:08,046 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:17:08,052 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 [2021-11-19 14:17:08,052 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:17:08,071 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 69 states have (on average 1.1594202898550725) internal successors, (80), 70 states have internal predecessors, (80), 26 states have call successors, (26), 14 states have call predecessors, (26), 14 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2021-11-19 14:17:08,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-19 14:17:08,082 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:08,083 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:17:08,084 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:17:08,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:08,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1837269808, now seen corresponding path program 1 times [2021-11-19 14:17:08,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:08,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [494957346] [2021-11-19 14:17:08,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:08,108 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:08,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:08,113 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:08,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:17:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:09,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 1332 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:17:09,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:09,466 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-19 14:17:09,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:09,906 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-11-19 14:17:09,907 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:09,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [494957346] [2021-11-19 14:17:09,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [494957346] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:17:09,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:17:09,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-11-19 14:17:09,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704332866] [2021-11-19 14:17:09,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:09,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:17:09,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:09,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:17:09,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:17:09,945 INFO L87 Difference]: Start difference. First operand has 111 states, 69 states have (on average 1.1594202898550725) internal successors, (80), 70 states have internal predecessors, (80), 26 states have call successors, (26), 14 states have call predecessors, (26), 14 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-19 14:17:10,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:10,047 INFO L93 Difference]: Finished difference Result 218 states and 273 transitions. [2021-11-19 14:17:10,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:17:10,052 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 102 [2021-11-19 14:17:10,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:10,062 INFO L225 Difference]: With dead ends: 218 [2021-11-19 14:17:10,063 INFO L226 Difference]: Without dead ends: 109 [2021-11-19 14:17:10,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:17:10,070 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 2 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:17:10,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 508 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:17:10,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-11-19 14:17:10,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2021-11-19 14:17:10,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 67 states have (on average 1.1343283582089552) internal successors, (76), 68 states have internal predecessors, (76), 26 states have call successors, (26), 14 states have call predecessors, (26), 15 states have return successors, (26), 26 states have call predecessors, (26), 25 states have call successors, (26) [2021-11-19 14:17:10,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 128 transitions. [2021-11-19 14:17:10,124 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 128 transitions. Word has length 102 [2021-11-19 14:17:10,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:10,125 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 128 transitions. [2021-11-19 14:17:10,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-19 14:17:10,126 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 128 transitions. [2021-11-19 14:17:10,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-19 14:17:10,130 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:10,130 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:17:10,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:17:10,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:10,360 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:17:10,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:10,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1053923504, now seen corresponding path program 1 times [2021-11-19 14:17:10,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:10,363 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1512588453] [2021-11-19 14:17:10,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:10,363 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:10,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:10,367 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:10,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:17:11,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:11,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 1346 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:17:11,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:11,478 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-19 14:17:11,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:11,972 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-11-19 14:17:11,973 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:11,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1512588453] [2021-11-19 14:17:11,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1512588453] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:17:11,973 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:17:11,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2021-11-19 14:17:11,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105815758] [2021-11-19 14:17:11,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:11,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:17:11,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:11,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:17:11,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:17:11,976 INFO L87 Difference]: Start difference. First operand 109 states and 128 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-19 14:17:12,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:12,129 INFO L93 Difference]: Finished difference Result 208 states and 243 transitions. [2021-11-19 14:17:12,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:17:12,130 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 114 [2021-11-19 14:17:12,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:12,133 INFO L225 Difference]: With dead ends: 208 [2021-11-19 14:17:12,134 INFO L226 Difference]: Without dead ends: 111 [2021-11-19 14:17:12,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:17:12,136 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 2 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:17:12,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 557 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:17:12,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-19 14:17:12,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2021-11-19 14:17:12,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 68 states have (on average 1.1323529411764706) internal successors, (77), 70 states have internal predecessors, (77), 26 states have call successors, (26), 14 states have call predecessors, (26), 16 states have return successors, (27), 26 states have call predecessors, (27), 25 states have call successors, (27) [2021-11-19 14:17:12,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 130 transitions. [2021-11-19 14:17:12,151 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 130 transitions. Word has length 114 [2021-11-19 14:17:12,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:12,151 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 130 transitions. [2021-11-19 14:17:12,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-19 14:17:12,152 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 130 transitions. [2021-11-19 14:17:12,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-19 14:17:12,154 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:12,155 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:17:12,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:17:12,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:12,383 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:17:12,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:12,384 INFO L85 PathProgramCache]: Analyzing trace with hash -314306709, now seen corresponding path program 1 times [2021-11-19 14:17:12,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:12,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1592258209] [2021-11-19 14:17:12,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:12,386 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:12,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:12,387 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:12,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:17:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:13,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 1393 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-19 14:17:13,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:13,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-19 14:17:14,540 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-19 14:17:14,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:15,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-19 14:17:15,483 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-19 14:17:15,484 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:15,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1592258209] [2021-11-19 14:17:15,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1592258209] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:17:15,484 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:17:15,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 15 [2021-11-19 14:17:15,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810880548] [2021-11-19 14:17:15,484 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:15,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-19 14:17:15,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:15,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-19 14:17:15,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-11-19 14:17:15,487 INFO L87 Difference]: Start difference. First operand 111 states and 130 transitions. Second operand has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 13 states have internal predecessors, (80), 4 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2021-11-19 14:17:17,597 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:17:19,606 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:17:21,609 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:17:23,616 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:17:24,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:24,923 INFO L93 Difference]: Finished difference Result 219 states and 254 transitions. [2021-11-19 14:17:24,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-19 14:17:24,925 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 13 states have internal predecessors, (80), 4 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 119 [2021-11-19 14:17:24,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:24,930 INFO L225 Difference]: With dead ends: 219 [2021-11-19 14:17:24,931 INFO L226 Difference]: Without dead ends: 128 [2021-11-19 14:17:24,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2021-11-19 14:17:24,933 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 26 mSDsluCounter, 1067 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 60 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:17:24,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 1188 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 4 Unknown, 60 Unchecked, 9.3s Time] [2021-11-19 14:17:24,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-19 14:17:24,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 123. [2021-11-19 14:17:24,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 78 states have (on average 1.141025641025641) internal successors, (89), 81 states have internal predecessors, (89), 26 states have call successors, (26), 15 states have call predecessors, (26), 18 states have return successors, (29), 26 states have call predecessors, (29), 25 states have call successors, (29) [2021-11-19 14:17:24,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 144 transitions. [2021-11-19 14:17:24,949 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 144 transitions. Word has length 119 [2021-11-19 14:17:24,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:24,950 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 144 transitions. [2021-11-19 14:17:24,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 13 states have internal predecessors, (80), 4 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2021-11-19 14:17:24,951 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 144 transitions. [2021-11-19 14:17:24,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-19 14:17:24,953 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:24,953 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:17:24,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:17:25,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:25,159 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:17:25,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:25,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1952074477, now seen corresponding path program 1 times [2021-11-19 14:17:25,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:25,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1135145132] [2021-11-19 14:17:25,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:25,162 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:25,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:25,162 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:25,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:17:26,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:26,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 1390 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:17:26,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:26,476 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-19 14:17:26,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:26,938 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-19 14:17:26,939 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:26,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1135145132] [2021-11-19 14:17:26,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1135145132] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:17:26,939 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:17:26,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-19 14:17:26,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777802267] [2021-11-19 14:17:26,939 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:26,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:17:26,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:26,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:17:26,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:17:26,941 INFO L87 Difference]: Start difference. First operand 123 states and 144 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-19 14:17:27,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:27,028 INFO L93 Difference]: Finished difference Result 224 states and 260 transitions. [2021-11-19 14:17:27,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:17:27,032 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 119 [2021-11-19 14:17:27,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:27,034 INFO L225 Difference]: With dead ends: 224 [2021-11-19 14:17:27,034 INFO L226 Difference]: Without dead ends: 118 [2021-11-19 14:17:27,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:17:27,036 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 17 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:17:27,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 454 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:17:27,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-19 14:17:27,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2021-11-19 14:17:27,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 74 states have (on average 1.1081081081081081) internal successors, (82), 76 states have internal predecessors, (82), 26 states have call successors, (26), 15 states have call predecessors, (26), 17 states have return successors, (28), 26 states have call predecessors, (28), 25 states have call successors, (28) [2021-11-19 14:17:27,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 136 transitions. [2021-11-19 14:17:27,059 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 136 transitions. Word has length 119 [2021-11-19 14:17:27,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:27,060 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 136 transitions. [2021-11-19 14:17:27,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-19 14:17:27,060 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 136 transitions. [2021-11-19 14:17:27,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-19 14:17:27,068 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:27,068 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:17:27,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:17:27,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:27,273 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:17:27,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:27,274 INFO L85 PathProgramCache]: Analyzing trace with hash 318660162, now seen corresponding path program 1 times [2021-11-19 14:17:27,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:27,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1919659184] [2021-11-19 14:17:27,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:27,276 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:27,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:27,277 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:27,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:17:28,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:28,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 1407 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-19 14:17:28,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:28,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-19 14:17:29,456 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-19 14:17:29,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:30,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-19 14:17:30,687 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-19 14:17:30,688 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:30,688 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1919659184] [2021-11-19 14:17:30,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1919659184] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:17:30,688 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:17:30,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 17 [2021-11-19 14:17:30,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118014990] [2021-11-19 14:17:30,689 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:30,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-19 14:17:30,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:30,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-19 14:17:30,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2021-11-19 14:17:30,690 INFO L87 Difference]: Start difference. First operand 118 states and 136 transitions. Second operand has 17 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 6 states have call successors, (29), 3 states have call predecessors, (29), 7 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) [2021-11-19 14:17:32,773 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:17:34,781 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:17:36,788 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:17:38,792 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:17:40,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:40,141 INFO L93 Difference]: Finished difference Result 224 states and 255 transitions. [2021-11-19 14:17:40,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-19 14:17:40,144 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 6 states have call successors, (29), 3 states have call predecessors, (29), 7 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) Word has length 125 [2021-11-19 14:17:40,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:40,146 INFO L225 Difference]: With dead ends: 224 [2021-11-19 14:17:40,146 INFO L226 Difference]: Without dead ends: 127 [2021-11-19 14:17:40,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2021-11-19 14:17:40,148 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 35 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 6 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 1315 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 81 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:17:40,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 1315 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 105 Invalid, 4 Unknown, 81 Unchecked, 9.3s Time] [2021-11-19 14:17:40,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-11-19 14:17:40,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 124. [2021-11-19 14:17:40,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 78 states have (on average 1.1025641025641026) internal successors, (86), 80 states have internal predecessors, (86), 27 states have call successors, (27), 16 states have call predecessors, (27), 18 states have return successors, (30), 27 states have call predecessors, (30), 26 states have call successors, (30) [2021-11-19 14:17:40,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 143 transitions. [2021-11-19 14:17:40,165 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 143 transitions. Word has length 125 [2021-11-19 14:17:40,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:40,165 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 143 transitions. [2021-11-19 14:17:40,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 6 states have call successors, (29), 3 states have call predecessors, (29), 7 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) [2021-11-19 14:17:40,166 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 143 transitions. [2021-11-19 14:17:40,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-19 14:17:40,168 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:40,169 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:17:40,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-19 14:17:40,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:40,383 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:17:40,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:40,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1468569993, now seen corresponding path program 1 times [2021-11-19 14:17:40,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:40,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2102075483] [2021-11-19 14:17:40,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:40,386 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:40,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:40,386 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:40,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:17:41,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:41,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 1424 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:17:41,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:41,729 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-19 14:17:41,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:42,160 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-19 14:17:42,160 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:42,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2102075483] [2021-11-19 14:17:42,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2102075483] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:17:42,160 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:17:42,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2021-11-19 14:17:42,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616812196] [2021-11-19 14:17:42,161 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:42,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 14:17:42,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:42,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 14:17:42,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:17:42,163 INFO L87 Difference]: Start difference. First operand 124 states and 143 transitions. Second operand has 9 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (23), 2 states have call predecessors, (23), 5 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2021-11-19 14:17:42,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:42,304 INFO L93 Difference]: Finished difference Result 176 states and 200 transitions. [2021-11-19 14:17:42,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:17:42,305 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (23), 2 states have call predecessors, (23), 5 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 130 [2021-11-19 14:17:42,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:42,307 INFO L225 Difference]: With dead ends: 176 [2021-11-19 14:17:42,307 INFO L226 Difference]: Without dead ends: 122 [2021-11-19 14:17:42,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:17:42,308 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 2 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:17:42,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 552 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:17:42,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-19 14:17:42,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 118. [2021-11-19 14:17:42,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 74 states have (on average 1.0810810810810811) internal successors, (80), 75 states have internal predecessors, (80), 27 states have call successors, (27), 16 states have call predecessors, (27), 16 states have return successors, (28), 26 states have call predecessors, (28), 26 states have call successors, (28) [2021-11-19 14:17:42,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 135 transitions. [2021-11-19 14:17:42,322 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 135 transitions. Word has length 130 [2021-11-19 14:17:42,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:42,323 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 135 transitions. [2021-11-19 14:17:42,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (23), 2 states have call predecessors, (23), 5 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2021-11-19 14:17:42,324 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 135 transitions. [2021-11-19 14:17:42,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-19 14:17:42,325 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:42,326 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:17:42,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:17:42,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:42,542 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:17:42,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:42,542 INFO L85 PathProgramCache]: Analyzing trace with hash -2007938044, now seen corresponding path program 1 times [2021-11-19 14:17:42,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:42,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1676028596] [2021-11-19 14:17:42,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:42,544 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:42,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:42,545 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:42,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a62c5c5-9867-4ae7-85c0-aef32c30d379/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:17:52,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:53,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 1471 conjuncts, 96 conjunts are in the unsatisfiable core [2021-11-19 14:17:53,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:53,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-19 14:17:53,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 14:18:01,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 509 treesize of output 377 [2021-11-19 14:18:01,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 310 treesize of output 206 [2021-11-19 14:18:01,547 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:18:01,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 75 [2021-11-19 14:18:03,625 INFO L354 Elim1Store]: treesize reduction 1099, result has 7.0 percent of original size [2021-11-19 14:18:03,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 7 case distinctions, treesize of input 70 treesize of output 95 [2021-11-19 14:18:08,924 INFO L354 Elim1Store]: treesize reduction 322, result has 0.3 percent of original size [2021-11-19 14:18:08,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 158 treesize of output 66 [2021-11-19 14:18:10,372 INFO L354 Elim1Store]: treesize reduction 1099, result has 7.0 percent of original size [2021-11-19 14:18:10,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 7 case distinctions, treesize of input 70 treesize of output 95 [2021-11-19 14:18:21,544 INFO L354 Elim1Store]: treesize reduction 322, result has 0.3 percent of original size [2021-11-19 14:18:21,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 1411 treesize of output 1319 [2021-11-19 14:18:22,723 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 51 proven. 4 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:18:22,723 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:18:32,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28481 treesize of output 27683