./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF --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 4074842a6d6900f214884b5b0ef94aa1b36f37c81b70cefd0198f88d1e717beb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:41:06,295 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:41:06,298 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:41:06,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:41:06,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:41:06,382 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:41:06,384 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:41:06,389 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:41:06,392 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:41:06,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:41:06,400 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:41:06,402 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:41:06,402 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:41:06,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:41:06,408 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:41:06,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:41:06,420 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:41:06,421 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:41:06,423 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:41:06,433 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:41:06,436 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:41:06,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:41:06,441 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:41:06,442 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:41:06,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:41:06,454 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:41:06,455 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:41:06,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:41:06,459 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:41:06,461 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:41:06,461 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:41:06,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:41:06,465 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:41:06,466 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:41:06,468 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:41:06,469 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:41:06,470 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:41:06,470 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:41:06,471 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:41:06,472 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:41:06,473 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:41:06,474 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-13 01:41:06,534 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:41:06,535 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:41:06,537 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:41:06,537 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:41:06,538 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:41:06,538 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:41:06,538 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:41:06,539 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:41:06,547 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:41:06,547 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:41:06,549 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:41:06,549 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:41:06,549 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:41:06,550 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:41:06,550 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:41:06,550 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:41:06,551 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:41:06,551 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:41:06,552 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:41:06,552 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:41:06,552 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:41:06,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:41:06,553 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:41:06,553 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:41:06,553 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:41:06,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:41:06,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:41:06,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:41:06,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:41:06,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:41:06,557 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:41:06,557 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:41:06,558 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:41:06,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:41:06,558 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:41:06,559 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:41:06,559 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:41:06,559 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_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4074842a6d6900f214884b5b0ef94aa1b36f37c81b70cefd0198f88d1e717beb [2021-11-13 01:41:06,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:41:06,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:41:06,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:41:06,856 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:41:06,857 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:41:06,858 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i [2021-11-13 01:41:06,923 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/data/cbb9b1e07/01848fccb5f849839ed0b7b75f56520f/FLAG088cde414 [2021-11-13 01:41:07,785 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:41:07,786 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i [2021-11-13 01:41:07,858 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/data/cbb9b1e07/01848fccb5f849839ed0b7b75f56520f/FLAG088cde414 [2021-11-13 01:41:08,238 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/data/cbb9b1e07/01848fccb5f849839ed0b7b75f56520f [2021-11-13 01:41:08,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:41:08,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:41:08,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:41:08,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:41:08,250 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:41:08,251 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:41:08" (1/1) ... [2021-11-13 01:41:08,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13701a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:08, skipping insertion in model container [2021-11-13 01:41:08,252 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:41:08" (1/1) ... [2021-11-13 01:41:08,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:41:08,412 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:41:08,723 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i[4495,4508] [2021-11-13 01:41:08,731 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i[4555,4568] [2021-11-13 01:41:08,758 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 01:41:08,765 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 01:41:09,927 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 01:41:10,062 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:10,067 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:10,068 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:10,069 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:10,071 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:10,100 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:10,102 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:10,105 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:10,106 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:10,109 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:10,110 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:10,113 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:10,116 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:10,512 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 01:41:10,513 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 01:41:10,514 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 01:41:10,516 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 01:41:10,517 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 01:41:10,518 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 01:41:10,519 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 01:41:10,520 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 01:41:10,520 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 01:41:10,521 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 01:41:10,679 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:10,687 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:10,800 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:10,809 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:10,813 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:41:10,853 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-13 01:41:10,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@76e27f07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:10, skipping insertion in model container [2021-11-13 01:41:10,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:41:10,854 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-13 01:41:10,858 INFO L158 Benchmark]: Toolchain (without parser) took 2611.53ms. Allocated memory was 115.3MB in the beginning and 140.5MB in the end (delta: 25.2MB). Free memory was 70.4MB in the beginning and 102.9MB in the end (delta: -32.4MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. [2021-11-13 01:41:10,859 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 115.3MB. Free memory was 85.4MB in the beginning and 85.4MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:41:10,861 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2608.20ms. Allocated memory was 115.3MB in the beginning and 140.5MB in the end (delta: 25.2MB). Free memory was 70.4MB in the beginning and 102.9MB in the end (delta: -32.4MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. [2021-11-13 01:41:10,864 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 115.3MB. Free memory was 85.4MB in the beginning and 85.4MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2608.20ms. Allocated memory was 115.3MB in the beginning and 140.5MB in the end (delta: 25.2MB). Free memory was 70.4MB in the beginning and 102.9MB in the end (delta: -32.4MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2886]: 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_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF --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 4074842a6d6900f214884b5b0ef94aa1b36f37c81b70cefd0198f88d1e717beb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:41:13,466 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:41:13,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:41:13,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:41:13,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:41:13,550 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:41:13,554 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:41:13,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:41:13,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:41:13,572 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:41:13,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:41:13,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:41:13,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:41:13,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:41:13,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:41:13,587 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:41:13,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:41:13,592 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:41:13,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:41:13,604 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:41:13,606 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:41:13,611 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:41:13,616 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:41:13,618 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:41:13,625 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:41:13,626 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:41:13,626 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:41:13,627 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:41:13,628 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:41:13,629 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:41:13,629 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:41:13,630 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:41:13,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:41:13,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:41:13,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:41:13,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:41:13,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:41:13,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:41:13,641 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:41:13,643 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:41:13,644 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:41:13,645 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-13 01:41:13,716 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:41:13,716 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:41:13,718 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:41:13,718 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:41:13,718 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:41:13,718 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:41:13,719 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:41:13,719 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:41:13,720 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:41:13,720 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:41:13,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:41:13,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:41:13,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:41:13,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:41:13,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:41:13,725 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:41:13,725 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 01:41:13,725 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 01:41:13,725 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:41:13,726 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:41:13,726 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:41:13,727 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:41:13,727 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 01:41:13,727 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:41:13,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:41:13,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:41:13,728 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:41:13,728 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:41:13,728 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 01:41:13,729 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 01:41:13,729 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:41:13,729 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:41:13,730 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:41:13,730 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_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4074842a6d6900f214884b5b0ef94aa1b36f37c81b70cefd0198f88d1e717beb [2021-11-13 01:41:14,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:41:14,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:41:14,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:41:14,194 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:41:14,195 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:41:14,197 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i [2021-11-13 01:41:14,280 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/data/8c0633246/561fad35fc23426fa8344620cc36ec31/FLAG9d6dc1cc8 [2021-11-13 01:41:15,367 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:41:15,368 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i [2021-11-13 01:41:15,444 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/data/8c0633246/561fad35fc23426fa8344620cc36ec31/FLAG9d6dc1cc8 [2021-11-13 01:41:15,816 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/data/8c0633246/561fad35fc23426fa8344620cc36ec31 [2021-11-13 01:41:15,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:41:15,821 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:41:15,823 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:41:15,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:41:15,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:41:15,843 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:41:15" (1/1) ... [2021-11-13 01:41:15,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b260245 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:15, skipping insertion in model container [2021-11-13 01:41:15,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:41:15" (1/1) ... [2021-11-13 01:41:15,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:41:16,057 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:41:16,477 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i[4495,4508] [2021-11-13 01:41:16,486 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i[4555,4568] [2021-11-13 01:41:16,508 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 01:41:16,515 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 01:41:17,694 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 01:41:17,771 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:17,772 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:17,772 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:17,773 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:17,774 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:17,791 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:17,791 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:17,793 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:17,794 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:17,795 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:17,797 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:17,797 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:17,798 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,204 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 01:41:18,205 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 01:41:18,206 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 01:41:18,207 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 01:41:18,209 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 01:41:18,210 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 01:41:18,211 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 01:41:18,211 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 01:41:18,212 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 01:41:18,213 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 01:41:18,381 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,388 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,438 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,438 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:41:18,474 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 01:41:18,511 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:41:18,515 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i[4495,4508] [2021-11-13 01:41:18,515 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i[4555,4568] [2021-11-13 01:41:18,516 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 01:41:18,517 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 01:41:18,546 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 01:41:18,563 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,563 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,564 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,564 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,565 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,572 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,572 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,573 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,574 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,575 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,575 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,576 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,576 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,630 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 01:41:18,631 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 01:41:18,632 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 01:41:18,633 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 01:41:18,634 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 01:41:18,634 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 01:41:18,635 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 01:41:18,635 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 01:41:18,636 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 01:41:18,636 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 01:41:18,664 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,669 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,688 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,688 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:41:18,708 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:41:18,720 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i[4495,4508] [2021-11-13 01:41:18,721 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i[4555,4568] [2021-11-13 01:41:18,722 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 01:41:18,723 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 01:41:18,751 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 01:41:18,763 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,764 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,764 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,765 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,765 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,771 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,772 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,773 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,773 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,774 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,775 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,775 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,775 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,844 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 01:41:18,845 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 01:41:18,846 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 01:41:18,846 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 01:41:18,847 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 01:41:18,848 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 01:41:18,848 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 01:41:18,849 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 01:41:18,849 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 01:41:18,850 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 01:41:18,874 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,879 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,896 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,896 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:41:18,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:41:19,129 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:41:19,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:19 WrapperNode [2021-11-13 01:41:19,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:41:19,131 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:41:19,131 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:41:19,131 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:41:19,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:19" (1/1) ... [2021-11-13 01:41:19,231 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:19" (1/1) ... [2021-11-13 01:41:19,347 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:41:19,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:41:19,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:41:19,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:41:19,360 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:19" (1/1) ... [2021-11-13 01:41:19,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:19" (1/1) ... [2021-11-13 01:41:19,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:19" (1/1) ... [2021-11-13 01:41:19,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:19" (1/1) ... [2021-11-13 01:41:19,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:19" (1/1) ... [2021-11-13 01:41:19,466 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:19" (1/1) ... [2021-11-13 01:41:19,479 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:19" (1/1) ... [2021-11-13 01:41:19,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:41:19,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:41:19,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:41:19,504 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:41:19,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:19" (1/1) ... [2021-11-13 01:41:19,515 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:41:19,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:41:19,537 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:41:19,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:41:19,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 01:41:19,593 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2021-11-13 01:41:19,593 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2021-11-13 01:41:19,593 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-11-13 01:41:19,593 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-11-13 01:41:19,593 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-13 01:41:19,594 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-13 01:41:19,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 01:41:19,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-13 01:41:19,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-13 01:41:19,595 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-13 01:41:19,595 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-13 01:41:19,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-13 01:41:19,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-13 01:41:19,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 01:41:19,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 01:41:19,596 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2021-11-13 01:41:19,596 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2021-11-13 01:41:19,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:41:19,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:41:19,598 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-13 01:41:19,601 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-13 01:41:19,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-13 01:41:19,602 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-13 01:41:19,602 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-13 01:41:19,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-13 01:41:19,603 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-13 01:41:19,605 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-13 01:41:19,605 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2021-11-13 01:41:19,605 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2021-11-13 01:41:19,609 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2021-11-13 01:41:19,610 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2021-11-13 01:41:19,610 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-13 01:41:19,610 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-13 01:41:19,610 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2021-11-13 01:41:19,610 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2021-11-13 01:41:19,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:41:19,611 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-13 01:41:19,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 01:41:19,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-13 01:41:19,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-13 01:41:19,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 01:41:19,611 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-13 01:41:19,612 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-13 01:41:19,612 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-13 01:41:19,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-13 01:41:19,612 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2021-11-13 01:41:19,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2021-11-13 01:41:32,824 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:41:32,825 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 01:41:32,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:41:32 BoogieIcfgContainer [2021-11-13 01:41:32,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:41:32,829 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:41:32,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:41:32,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:41:32,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:41:15" (1/3) ... [2021-11-13 01:41:32,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d7e38f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:41:32, skipping insertion in model container [2021-11-13 01:41:32,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:19" (2/3) ... [2021-11-13 01:41:32,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d7e38f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:41:32, skipping insertion in model container [2021-11-13 01:41:32,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:41:32" (3/3) ... [2021-11-13 01:41:32,835 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_get_at_harness.i [2021-11-13 01:41:32,840 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:41:32,840 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 01:41:32,885 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:41:32,892 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 [2021-11-13 01:41:32,892 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 01:41:32,912 INFO L276 IsEmpty]: Start isEmpty. Operand has 178 states, 108 states have (on average 1.212962962962963) internal successors, (131), 109 states have internal predecessors, (131), 52 states have call successors, (52), 16 states have call predecessors, (52), 16 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2021-11-13 01:41:32,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-13 01:41:32,925 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:41:32,926 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:41:32,927 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:41:32,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:41:32,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1881445885, now seen corresponding path program 1 times [2021-11-13 01:41:32,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:41:32,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [229306752] [2021-11-13 01:41:32,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:32,952 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:41:32,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:41:32,955 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:41:32,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 01:41:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:36,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 1771 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-13 01:41:36,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:41:37,350 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-11-13 01:41:37,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:41:37,677 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2021-11-13 01:41:37,678 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:41:37,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [229306752] [2021-11-13 01:41:37,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [229306752] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:41:37,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:41:37,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-13 01:41:37,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031493937] [2021-11-13 01:41:37,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:41:37,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 01:41:37,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:41:37,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 01:41:37,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 01:41:37,713 INFO L87 Difference]: Start difference. First operand has 178 states, 108 states have (on average 1.212962962962963) internal successors, (131), 109 states have internal predecessors, (131), 52 states have call successors, (52), 16 states have call predecessors, (52), 16 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-13 01:41:37,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:41:37,757 INFO L93 Difference]: Finished difference Result 349 states and 497 transitions. [2021-11-13 01:41:37,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 01:41:37,759 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 124 [2021-11-13 01:41:37,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:41:37,769 INFO L225 Difference]: With dead ends: 349 [2021-11-13 01:41:37,769 INFO L226 Difference]: Without dead ends: 169 [2021-11-13 01:41:37,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 01:41:37,778 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.59ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 01:41:37,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 2.59ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 01:41:37,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2021-11-13 01:41:37,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2021-11-13 01:41:37,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 101 states have (on average 1.1683168316831682) internal successors, (118), 102 states have internal predecessors, (118), 52 states have call successors, (52), 16 states have call predecessors, (52), 15 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2021-11-13 01:41:37,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 220 transitions. [2021-11-13 01:41:37,835 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 220 transitions. Word has length 124 [2021-11-13 01:41:37,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:41:37,836 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 220 transitions. [2021-11-13 01:41:37,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-13 01:41:37,836 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 220 transitions. [2021-11-13 01:41:37,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-13 01:41:37,840 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:41:37,840 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:41:37,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 01:41:38,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:41:38,056 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:41:38,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:41:38,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1730209477, now seen corresponding path program 1 times [2021-11-13 01:41:38,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:41:38,065 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [632839006] [2021-11-13 01:41:38,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:38,066 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:41:38,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:41:38,067 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:41:38,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 01:41:41,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:41,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 1771 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:41:41,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:41:42,349 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2021-11-13 01:41:42,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:41:42,796 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2021-11-13 01:41:42,796 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:41:42,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [632839006] [2021-11-13 01:41:42,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [632839006] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:41:42,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:41:42,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2021-11-13 01:41:42,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947687321] [2021-11-13 01:41:42,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:41:42,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:41:42,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:41:42,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:41:42,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:41:42,799 INFO L87 Difference]: Start difference. First operand 169 states and 220 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-13 01:41:43,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:41:43,265 INFO L93 Difference]: Finished difference Result 311 states and 411 transitions. [2021-11-13 01:41:43,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 01:41:43,266 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 124 [2021-11-13 01:41:43,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:41:43,270 INFO L225 Difference]: With dead ends: 311 [2021-11-13 01:41:43,271 INFO L226 Difference]: Without dead ends: 171 [2021-11-13 01:41:43,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:41:43,273 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 49 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 317.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.53ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 403.43ms IncrementalHoareTripleChecker+Time [2021-11-13 01:41:43,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 712 Invalid, 87 Unknown, 0 Unchecked, 8.53ms Time], IncrementalHoareTripleChecker [2 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 403.43ms Time] [2021-11-13 01:41:43,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2021-11-13 01:41:43,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2021-11-13 01:41:43,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 102 states have (on average 1.1666666666666667) internal successors, (119), 104 states have internal predecessors, (119), 52 states have call successors, (52), 16 states have call predecessors, (52), 16 states have return successors, (55), 50 states have call predecessors, (55), 50 states have call successors, (55) [2021-11-13 01:41:43,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 226 transitions. [2021-11-13 01:41:43,295 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 226 transitions. Word has length 124 [2021-11-13 01:41:43,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:41:43,296 INFO L470 AbstractCegarLoop]: Abstraction has 171 states and 226 transitions. [2021-11-13 01:41:43,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-13 01:41:43,296 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 226 transitions. [2021-11-13 01:41:43,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-13 01:41:43,299 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:41:43,299 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:41:43,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-13 01:41:43,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:41:43,501 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:41:43,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:41:43,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1300515237, now seen corresponding path program 1 times [2021-11-13 01:41:43,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:41:43,532 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1985386945] [2021-11-13 01:41:43,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:43,533 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:41:43,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:41:43,535 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:41:43,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 01:41:47,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:47,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 1931 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-13 01:41:47,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:41:48,326 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-11-13 01:41:48,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:41:48,828 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-13 01:41:48,829 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:41:48,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1985386945] [2021-11-13 01:41:48,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1985386945] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:41:48,829 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:41:48,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-13 01:41:48,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568969126] [2021-11-13 01:41:48,829 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:41:48,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 01:41:48,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:41:48,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 01:41:48,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:41:48,832 INFO L87 Difference]: Start difference. First operand 171 states and 226 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-13 01:41:49,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:41:49,101 INFO L93 Difference]: Finished difference Result 339 states and 463 transitions. [2021-11-13 01:41:49,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 01:41:49,102 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 154 [2021-11-13 01:41:49,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:41:49,106 INFO L225 Difference]: With dead ends: 339 [2021-11-13 01:41:49,106 INFO L226 Difference]: Without dead ends: 228 [2021-11-13 01:41:49,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:41:49,108 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 29 mSDsluCounter, 1208 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 186.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 1457 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.77ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 209.32ms IncrementalHoareTripleChecker+Time [2021-11-13 01:41:49,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 1457 Invalid, 38 Unknown, 0 Unchecked, 8.77ms Time], IncrementalHoareTripleChecker [4 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 209.32ms Time] [2021-11-13 01:41:49,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-11-13 01:41:49,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 184. [2021-11-13 01:41:49,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 111 states have (on average 1.162162162162162) internal successors, (129), 113 states have internal predecessors, (129), 55 states have call successors, (55), 16 states have call predecessors, (55), 17 states have return successors, (59), 54 states have call predecessors, (59), 53 states have call successors, (59) [2021-11-13 01:41:49,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 243 transitions. [2021-11-13 01:41:49,132 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 243 transitions. Word has length 154 [2021-11-13 01:41:49,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:41:49,133 INFO L470 AbstractCegarLoop]: Abstraction has 184 states and 243 transitions. [2021-11-13 01:41:49,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-13 01:41:49,133 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 243 transitions. [2021-11-13 01:41:49,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-13 01:41:49,136 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:41:49,136 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:41:49,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 01:41:49,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:41:49,358 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:41:49,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:41:49,360 INFO L85 PathProgramCache]: Analyzing trace with hash -424496231, now seen corresponding path program 1 times [2021-11-13 01:41:49,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:41:49,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1865801619] [2021-11-13 01:41:49,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:49,374 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:41:49,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:41:49,377 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:41:49,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 01:41:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:53,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 1929 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-13 01:41:53,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:41:54,180 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-11-13 01:41:54,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:41:54,778 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2021-11-13 01:41:54,778 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:41:54,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1865801619] [2021-11-13 01:41:54,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1865801619] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:41:54,778 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:41:54,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 10 [2021-11-13 01:41:54,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72640510] [2021-11-13 01:41:54,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:41:54,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 01:41:54,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:41:54,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 01:41:54,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-13 01:41:54,781 INFO L87 Difference]: Start difference. First operand 184 states and 243 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2021-11-13 01:41:55,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:41:55,400 INFO L93 Difference]: Finished difference Result 296 states and 393 transitions. [2021-11-13 01:41:55,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 01:41:55,407 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 154 [2021-11-13 01:41:55,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:41:55,409 INFO L225 Difference]: With dead ends: 296 [2021-11-13 01:41:55,409 INFO L226 Difference]: Without dead ends: 171 [2021-11-13 01:41:55,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-11-13 01:41:55,411 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 7 mSDsluCounter, 1364 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 457.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1565 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.95ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 545.22ms IncrementalHoareTripleChecker+Time [2021-11-13 01:41:55,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 1565 Invalid, 210 Unknown, 0 Unchecked, 6.95ms Time], IncrementalHoareTripleChecker [1 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 545.22ms Time] [2021-11-13 01:41:55,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2021-11-13 01:41:55,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2021-11-13 01:41:55,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 102 states have (on average 1.1470588235294117) internal successors, (117), 104 states have internal predecessors, (117), 52 states have call successors, (52), 16 states have call predecessors, (52), 16 states have return successors, (55), 50 states have call predecessors, (55), 50 states have call successors, (55) [2021-11-13 01:41:55,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 224 transitions. [2021-11-13 01:41:55,432 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 224 transitions. Word has length 154 [2021-11-13 01:41:55,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:41:55,432 INFO L470 AbstractCegarLoop]: Abstraction has 171 states and 224 transitions. [2021-11-13 01:41:55,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2021-11-13 01:41:55,433 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 224 transitions. [2021-11-13 01:41:55,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-13 01:41:55,436 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:41:55,436 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 5, 5, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:41:55,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 01:41:55,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:41:55,653 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:41:55,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:41:55,654 INFO L85 PathProgramCache]: Analyzing trace with hash 806434654, now seen corresponding path program 1 times [2021-11-13 01:41:55,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:41:55,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [774134319] [2021-11-13 01:41:55,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:55,666 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:41:55,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:41:55,673 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:41:55,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 01:41:59,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:59,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 1953 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 01:41:59,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:42:00,231 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2021-11-13 01:42:00,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:42:00,752 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-11-13 01:42:00,752 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:42:00,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [774134319] [2021-11-13 01:42:00,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [774134319] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:42:00,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:42:00,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2021-11-13 01:42:00,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454703849] [2021-11-13 01:42:00,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:42:00,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 01:42:00,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:42:00,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 01:42:00,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:42:00,754 INFO L87 Difference]: Start difference. First operand 171 states and 224 transitions. Second operand has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2021-11-13 01:42:01,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:42:01,262 INFO L93 Difference]: Finished difference Result 279 states and 366 transitions. [2021-11-13 01:42:01,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:42:01,262 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 165 [2021-11-13 01:42:01,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:42:01,265 INFO L225 Difference]: With dead ends: 279 [2021-11-13 01:42:01,265 INFO L226 Difference]: Without dead ends: 171 [2021-11-13 01:42:01,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-13 01:42:01,266 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 64 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 371.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.45ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 451.39ms IncrementalHoareTripleChecker+Time [2021-11-13 01:42:01,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 860 Invalid, 145 Unknown, 0 Unchecked, 3.45ms Time], IncrementalHoareTripleChecker [40 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 451.39ms Time] [2021-11-13 01:42:01,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2021-11-13 01:42:01,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2021-11-13 01:42:01,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 102 states have (on average 1.1470588235294117) internal successors, (117), 104 states have internal predecessors, (117), 52 states have call successors, (52), 16 states have call predecessors, (52), 16 states have return successors, (52), 50 states have call predecessors, (52), 50 states have call successors, (52) [2021-11-13 01:42:01,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 221 transitions. [2021-11-13 01:42:01,283 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 221 transitions. Word has length 165 [2021-11-13 01:42:01,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:42:01,284 INFO L470 AbstractCegarLoop]: Abstraction has 171 states and 221 transitions. [2021-11-13 01:42:01,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2021-11-13 01:42:01,285 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 221 transitions. [2021-11-13 01:42:01,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-13 01:42:01,287 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:42:01,288 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1] [2021-11-13 01:42:01,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 01:42:01,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:42:01,505 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:42:01,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:42:01,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1818508238, now seen corresponding path program 2 times [2021-11-13 01:42:01,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:42:01,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [711172559] [2021-11-13 01:42:01,519 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 01:42:01,519 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:42:01,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:42:01,522 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:42:01,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5a57f5d-4e07-43c6-b11c-1a26ff69af6f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process