./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_back_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_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/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_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/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_7944508f-afd6-4838-a2ff-a8c51dce2f66/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 43b2ef256b4d1a93a084f86d3d9a0522c1b29c695f7bf9f8438f4c917cc80da0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:34:09,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:34:09,478 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:34:09,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:34:09,543 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:34:09,548 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:34:09,552 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:34:09,557 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:34:09,560 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:34:09,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:34:09,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:34:09,571 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:34:09,571 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:34:09,574 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:34:09,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:34:09,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:34:09,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:34:09,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:34:09,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:34:09,600 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:34:09,602 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:34:09,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:34:09,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:34:09,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:34:09,613 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:34:09,613 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:34:09,614 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:34:09,616 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:34:09,616 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:34:09,618 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:34:09,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:34:09,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:34:09,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:34:09,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:34:09,625 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:34:09,626 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:34:09,626 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:34:09,627 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:34:09,627 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:34:09,628 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:34:09,629 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:34:09,630 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-13 02:34:09,680 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:34:09,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:34:09,682 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:34:09,682 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:34:09,682 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:34:09,682 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:34:09,683 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:34:09,683 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 02:34:09,683 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:34:09,683 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:34:09,684 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 02:34:09,685 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 02:34:09,685 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:34:09,685 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 02:34:09,686 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 02:34:09,686 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 02:34:09,687 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:34:09,687 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 02:34:09,687 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:34:09,687 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:34:09,688 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:34:09,688 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:34:09,688 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:34:09,688 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:34:09,689 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:34:09,689 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:34:09,689 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:34:09,689 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:34:09,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:34:09,691 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:34:09,692 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:34:09,692 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:34:09,692 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 02:34:09,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 02:34:09,693 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:34:09,693 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:34:09,693 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:34:09,693 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_7944508f-afd6-4838-a2ff-a8c51dce2f66/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43b2ef256b4d1a93a084f86d3d9a0522c1b29c695f7bf9f8438f4c917cc80da0 [2021-11-13 02:34:09,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:34:09,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:34:09,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:34:09,981 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:34:09,982 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:34:09,984 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i [2021-11-13 02:34:10,064 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/data/4e808cb79/1a43c0a4f02241e38165b93f0b421878/FLAG0b28ed417 [2021-11-13 02:34:10,905 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:34:10,905 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i [2021-11-13 02:34:10,948 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/data/4e808cb79/1a43c0a4f02241e38165b93f0b421878/FLAG0b28ed417 [2021-11-13 02:34:11,374 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/data/4e808cb79/1a43c0a4f02241e38165b93f0b421878 [2021-11-13 02:34:11,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:34:11,382 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:34:11,385 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:34:11,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:34:11,389 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:34:11,390 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:34:11" (1/1) ... [2021-11-13 02:34:11,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62ff82aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:11, skipping insertion in model container [2021-11-13 02:34:11,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:34:11" (1/1) ... [2021-11-13 02:34:11,402 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:34:11,518 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:34:11,739 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i[4493,4506] [2021-11-13 02:34:11,746 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_7944508f-afd6-4838-a2ff-a8c51dce2f66/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i[4553,4566] [2021-11-13 02:34:11,768 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 02:34:11,774 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 02:34:12,738 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 02:34:12,870 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:12,872 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:12,873 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:12,875 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:12,877 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:12,900 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:12,901 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:12,905 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:12,905 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:12,908 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:12,912 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:12,913 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:12,915 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:13,337 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 02:34:13,339 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 02:34:13,340 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 02:34:13,344 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 02:34:13,348 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 02:34:13,349 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 02:34:13,350 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 02:34:13,352 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 02:34:13,354 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 02:34:13,355 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 02:34:13,522 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:13,530 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:13,602 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:34:13,640 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 02:34:13,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@119cba3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:13, skipping insertion in model container [2021-11-13 02:34:13,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:34:13,642 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-13 02:34:13,644 INFO L158 Benchmark]: Toolchain (without parser) took 2260.37ms. Allocated memory is still 96.5MB. Free memory was 63.8MB in the beginning and 41.3MB in the end (delta: 22.5MB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB. [2021-11-13 02:34:13,644 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 79.7MB. Free memory is still 45.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:34:13,645 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2256.30ms. Allocated memory is still 96.5MB. Free memory was 63.7MB in the beginning and 41.3MB in the end (delta: 22.4MB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB. [2021-11-13 02:34:13,647 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 79.7MB. Free memory is still 45.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2256.30ms. Allocated memory is still 96.5MB. Free memory was 63.7MB in the beginning and 41.3MB in the end (delta: 22.4MB). Peak memory consumption was 31.6MB. 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_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/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_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/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_7944508f-afd6-4838-a2ff-a8c51dce2f66/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 43b2ef256b4d1a93a084f86d3d9a0522c1b29c695f7bf9f8438f4c917cc80da0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:34:15,936 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:34:15,938 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:34:15,987 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:34:15,988 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:34:15,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:34:15,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:34:16,000 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:34:16,003 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:34:16,012 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:34:16,014 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:34:16,015 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:34:16,015 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:34:16,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:34:16,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:34:16,026 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:34:16,032 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:34:16,034 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:34:16,036 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:34:16,043 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:34:16,046 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:34:16,048 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:34:16,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:34:16,053 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:34:16,061 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:34:16,066 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:34:16,066 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:34:16,067 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:34:16,070 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:34:16,071 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:34:16,071 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:34:16,072 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:34:16,075 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:34:16,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:34:16,078 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:34:16,078 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:34:16,079 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:34:16,079 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:34:16,080 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:34:16,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:34:16,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:34:16,089 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-13 02:34:16,131 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:34:16,131 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:34:16,133 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:34:16,133 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:34:16,134 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:34:16,134 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:34:16,134 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:34:16,134 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:34:16,134 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:34:16,135 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:34:16,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:34:16,138 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:34:16,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:34:16,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:34:16,139 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:34:16,139 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:34:16,139 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 02:34:16,139 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 02:34:16,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:34:16,140 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:34:16,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:34:16,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:34:16,140 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 02:34:16,141 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:34:16,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:34:16,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:34:16,141 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:34:16,142 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:34:16,142 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 02:34:16,142 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 02:34:16,142 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:34:16,143 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:34:16,143 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:34:16,143 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_7944508f-afd6-4838-a2ff-a8c51dce2f66/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43b2ef256b4d1a93a084f86d3d9a0522c1b29c695f7bf9f8438f4c917cc80da0 [2021-11-13 02:34:16,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:34:16,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:34:16,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:34:16,603 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:34:16,604 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:34:16,605 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i [2021-11-13 02:34:16,663 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/data/c3f4f2384/5d46b8ad4b4c4cf7824405b5243b9227/FLAGeda59fb9f [2021-11-13 02:34:17,623 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:34:17,624 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i [2021-11-13 02:34:17,670 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/data/c3f4f2384/5d46b8ad4b4c4cf7824405b5243b9227/FLAGeda59fb9f [2021-11-13 02:34:18,080 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/data/c3f4f2384/5d46b8ad4b4c4cf7824405b5243b9227 [2021-11-13 02:34:18,083 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:34:18,085 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:34:18,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:34:18,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:34:18,091 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:34:18,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:34:18" (1/1) ... [2021-11-13 02:34:18,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14c7a41a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:18, skipping insertion in model container [2021-11-13 02:34:18,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:34:18" (1/1) ... [2021-11-13 02:34:18,118 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:34:18,221 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:34:18,557 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_7944508f-afd6-4838-a2ff-a8c51dce2f66/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i[4493,4506] [2021-11-13 02:34:18,563 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_7944508f-afd6-4838-a2ff-a8c51dce2f66/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i[4553,4566] [2021-11-13 02:34:18,582 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 02:34:18,587 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 02:34:19,450 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 02:34:19,532 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:19,533 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:19,534 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:19,535 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:19,536 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:19,556 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:19,560 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:19,562 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:19,565 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:19,573 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:19,574 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:19,577 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:19,578 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:20,050 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 02:34:20,051 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 02:34:20,052 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 02:34:20,054 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 02:34:20,055 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 02:34:20,064 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 02:34:20,066 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 02:34:20,066 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 02:34:20,067 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 02:34:20,068 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 02:34:20,302 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:20,309 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:20,365 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:34:20,414 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 02:34:20,477 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:34:20,485 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_7944508f-afd6-4838-a2ff-a8c51dce2f66/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i[4493,4506] [2021-11-13 02:34:20,486 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_7944508f-afd6-4838-a2ff-a8c51dce2f66/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i[4553,4566] [2021-11-13 02:34:20,491 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 02:34:20,492 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 02:34:20,563 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 02:34:20,581 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:20,582 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:20,582 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:20,583 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:20,584 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:20,592 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:20,592 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:20,594 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:20,594 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:20,596 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:20,597 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:20,597 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:20,598 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:20,639 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 02:34:20,640 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 02:34:20,641 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 02:34:20,642 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 02:34:20,643 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 02:34:20,644 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 02:34:20,645 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 02:34:20,646 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 02:34:20,646 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 02:34:20,647 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 02:34:20,695 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:20,705 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:20,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:34:20,745 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 02:34:20,758 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_7944508f-afd6-4838-a2ff-a8c51dce2f66/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i[4493,4506] [2021-11-13 02:34:20,759 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_7944508f-afd6-4838-a2ff-a8c51dce2f66/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i[4553,4566] [2021-11-13 02:34:20,761 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 02:34:20,761 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 02:34:20,788 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 02:34:20,801 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:20,801 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:20,802 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:20,802 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:20,803 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:20,809 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:20,810 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:20,811 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:20,812 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:20,813 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:20,814 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:20,814 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:20,815 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:20,877 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 02:34:20,878 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 02:34:20,879 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 02:34:20,880 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 02:34:20,881 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 02:34:20,881 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 02:34:20,882 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 02:34:20,882 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 02:34:20,883 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 02:34:20,884 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 02:34:20,911 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:20,917 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:34:20,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:34:21,326 INFO L208 MainTranslator]: Completed translation [2021-11-13 02:34:21,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:21 WrapperNode [2021-11-13 02:34:21,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:34:21,328 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 02:34:21,329 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 02:34:21,329 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 02:34:21,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:21" (1/1) ... [2021-11-13 02:34:21,487 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:21" (1/1) ... [2021-11-13 02:34:21,591 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 02:34:21,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 02:34:21,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 02:34:21,593 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 02:34:21,603 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:21" (1/1) ... [2021-11-13 02:34:21,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:21" (1/1) ... [2021-11-13 02:34:21,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:21" (1/1) ... [2021-11-13 02:34:21,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:21" (1/1) ... [2021-11-13 02:34:21,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:21" (1/1) ... [2021-11-13 02:34:21,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:21" (1/1) ... [2021-11-13 02:34:21,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:21" (1/1) ... [2021-11-13 02:34:21,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 02:34:21,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 02:34:21,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 02:34:21,754 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 02:34:21,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:21" (1/1) ... [2021-11-13 02:34:21,762 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:34:21,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:34:21,784 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 02:34:21,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 02:34:21,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 02:34:21,839 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2021-11-13 02:34:21,840 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2021-11-13 02:34:21,840 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-11-13 02:34:21,840 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-11-13 02:34:21,840 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-13 02:34:21,841 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-13 02:34:21,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 02:34:21,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-13 02:34:21,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-13 02:34:21,841 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-13 02:34:21,842 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-13 02:34:21,842 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-13 02:34:21,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-13 02:34:21,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 02:34:21,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 02:34:21,842 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2021-11-13 02:34:21,843 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2021-11-13 02:34:21,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 02:34:21,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 02:34:21,843 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-13 02:34:21,844 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-13 02:34:21,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-13 02:34:21,844 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-13 02:34:21,844 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-13 02:34:21,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-13 02:34:21,846 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-13 02:34:21,848 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-13 02:34:21,849 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2021-11-13 02:34:21,849 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2021-11-13 02:34:21,849 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2021-11-13 02:34:21,849 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2021-11-13 02:34:21,850 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-13 02:34:21,850 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-13 02:34:21,851 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2021-11-13 02:34:21,851 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2021-11-13 02:34:21,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 02:34:21,859 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-13 02:34:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 02:34:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-13 02:34:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-13 02:34:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 02:34:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-13 02:34:21,860 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-13 02:34:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-13 02:34:21,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-13 02:34:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2021-11-13 02:34:21,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2021-11-13 02:34:35,926 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 02:34:35,926 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 02:34:35,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:34:35 BoogieIcfgContainer [2021-11-13 02:34:35,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 02:34:35,932 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 02:34:35,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 02:34:35,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 02:34:35,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:34:18" (1/3) ... [2021-11-13 02:34:35,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20367bc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:34:35, skipping insertion in model container [2021-11-13 02:34:35,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:21" (2/3) ... [2021-11-13 02:34:35,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20367bc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:34:35, skipping insertion in model container [2021-11-13 02:34:35,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:34:35" (3/3) ... [2021-11-13 02:34:35,943 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_back_harness.i [2021-11-13 02:34:35,949 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 02:34:35,949 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 02:34:36,022 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 02:34:36,035 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 02:34:36,035 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 02:34:36,059 INFO L276 IsEmpty]: Start isEmpty. Operand has 180 states, 109 states have (on average 1.2110091743119267) internal successors, (132), 110 states have internal predecessors, (132), 53 states have call successors, (53), 16 states have call predecessors, (53), 16 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2021-11-13 02:34:36,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-13 02:34:36,082 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:34:36,084 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 02:34:36,084 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:34:36,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:34:36,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1489749117, now seen corresponding path program 1 times [2021-11-13 02:34:36,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:34:36,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1061231578] [2021-11-13 02:34:36,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:34:36,115 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:34:36,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:34:36,120 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:34:36,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 02:34:40,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:34:40,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 1769 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-13 02:34:40,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:34:41,000 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 02:34:41,000 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:34:41,428 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 02:34:41,430 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:34:41,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1061231578] [2021-11-13 02:34:41,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1061231578] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:34:41,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:34:41,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-13 02:34:41,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541320585] [2021-11-13 02:34:41,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:34:41,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 02:34:41,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:34:41,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 02:34:41,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 02:34:41,485 INFO L87 Difference]: Start difference. First operand has 180 states, 109 states have (on average 1.2110091743119267) internal successors, (132), 110 states have internal predecessors, (132), 53 states have call successors, (53), 16 states have call predecessors, (53), 16 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) 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 02:34:41,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:34:41,579 INFO L93 Difference]: Finished difference Result 353 states and 504 transitions. [2021-11-13 02:34:41,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 02:34:41,583 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 02:34:41,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:34:41,598 INFO L225 Difference]: With dead ends: 353 [2021-11-13 02:34:41,598 INFO L226 Difference]: Without dead ends: 171 [2021-11-13 02:34:41,610 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 02:34:41,616 INFO L933 BasicCegarLoop]: 235 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, 235 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.35ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 02:34:41,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 6.35ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 02:34:41,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2021-11-13 02:34:41,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2021-11-13 02:34:41,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 102 states have (on average 1.1666666666666667) internal successors, (119), 103 states have internal predecessors, (119), 53 states have call successors, (53), 16 states have call predecessors, (53), 15 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2021-11-13 02:34:41,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 223 transitions. [2021-11-13 02:34:41,733 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 223 transitions. Word has length 124 [2021-11-13 02:34:41,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:34:41,733 INFO L470 AbstractCegarLoop]: Abstraction has 171 states and 223 transitions. [2021-11-13 02:34:41,734 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 02:34:41,734 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 223 transitions. [2021-11-13 02:34:41,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-13 02:34:41,742 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:34:41,742 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 02:34:41,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 02:34:41,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:34:41,943 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:34:41,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:34:41,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1640985525, now seen corresponding path program 1 times [2021-11-13 02:34:41,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:34:41,949 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [288933231] [2021-11-13 02:34:41,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:34:41,949 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:34:41,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:34:41,950 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:34:41,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 02:34:45,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:34:46,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 1769 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:34:46,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:34:46,549 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 02:34:46,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:34:47,043 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 02:34:47,043 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:34:47,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [288933231] [2021-11-13 02:34:47,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [288933231] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:34:47,044 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:34:47,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2021-11-13 02:34:47,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573576197] [2021-11-13 02:34:47,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:34:47,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:34:47,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:34:47,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:34:47,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:34:47,047 INFO L87 Difference]: Start difference. First operand 171 states and 223 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 02:34:47,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:34:47,544 INFO L93 Difference]: Finished difference Result 315 states and 417 transitions. [2021-11-13 02:34:47,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 02:34:47,545 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 02:34:47,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:34:47,550 INFO L225 Difference]: With dead ends: 315 [2021-11-13 02:34:47,550 INFO L226 Difference]: Without dead ends: 173 [2021-11-13 02:34:47,551 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 02:34:47,552 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 50 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 355.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.82ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 421.19ms IncrementalHoareTripleChecker+Time [2021-11-13 02:34:47,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 722 Invalid, 87 Unknown, 0 Unchecked, 11.82ms Time], IncrementalHoareTripleChecker [2 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 421.19ms Time] [2021-11-13 02:34:47,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-11-13 02:34:47,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2021-11-13 02:34:47,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 103 states have (on average 1.1650485436893203) internal successors, (120), 105 states have internal predecessors, (120), 53 states have call successors, (53), 16 states have call predecessors, (53), 16 states have return successors, (56), 51 states have call predecessors, (56), 51 states have call successors, (56) [2021-11-13 02:34:47,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 229 transitions. [2021-11-13 02:34:47,577 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 229 transitions. Word has length 124 [2021-11-13 02:34:47,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:34:47,578 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 229 transitions. [2021-11-13 02:34:47,578 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 02:34:47,578 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 229 transitions. [2021-11-13 02:34:47,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-13 02:34:47,581 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:34:47,582 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 02:34:47,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 02:34:47,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:34:47,804 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:34:47,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:34:47,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1623021021, now seen corresponding path program 1 times [2021-11-13 02:34:47,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:34:47,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [866965469] [2021-11-13 02:34:47,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:34:47,808 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:34:47,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:34:47,809 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:34:47,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 02:34:52,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:34:52,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 1929 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-13 02:34:52,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:34:53,021 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 02:34:53,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:34:53,695 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 02:34:53,695 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:34:53,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [866965469] [2021-11-13 02:34:53,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [866965469] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:34:53,696 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:34:53,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-13 02:34:53,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660398892] [2021-11-13 02:34:53,696 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:34:53,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 02:34:53,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:34:53,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 02:34:53,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:34:53,700 INFO L87 Difference]: Start difference. First operand 173 states and 229 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 02:34:54,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:34:54,019 INFO L93 Difference]: Finished difference Result 345 states and 472 transitions. [2021-11-13 02:34:54,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 02:34:54,020 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 02:34:54,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:34:54,025 INFO L225 Difference]: With dead ends: 345 [2021-11-13 02:34:54,025 INFO L226 Difference]: Without dead ends: 232 [2021-11-13 02:34:54,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-13 02:34:54,027 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 30 mSDsluCounter, 1263 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 210.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 1524 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.39ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 241.56ms IncrementalHoareTripleChecker+Time [2021-11-13 02:34:54,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 1524 Invalid, 39 Unknown, 0 Unchecked, 10.39ms Time], IncrementalHoareTripleChecker [4 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 241.56ms Time] [2021-11-13 02:34:54,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-11-13 02:34:54,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 186. [2021-11-13 02:34:54,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 112 states have (on average 1.1607142857142858) internal successors, (130), 114 states have internal predecessors, (130), 56 states have call successors, (56), 16 states have call predecessors, (56), 17 states have return successors, (60), 55 states have call predecessors, (60), 54 states have call successors, (60) [2021-11-13 02:34:54,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 246 transitions. [2021-11-13 02:34:54,059 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 246 transitions. Word has length 154 [2021-11-13 02:34:54,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:34:54,060 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 246 transitions. [2021-11-13 02:34:54,061 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 02:34:54,061 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 246 transitions. [2021-11-13 02:34:54,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-13 02:34:54,065 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:34:54,065 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 02:34:54,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 02:34:54,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:34:54,266 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:34:54,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:34:54,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1795927269, now seen corresponding path program 1 times [2021-11-13 02:34:54,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:34:54,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2117477756] [2021-11-13 02:34:54,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:34:54,270 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:34:54,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:34:54,271 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:34:54,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 02:34:58,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:34:58,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 1927 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-13 02:34:58,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:34:59,673 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 02:34:59,673 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:35:00,391 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 02:35:00,391 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:35:00,391 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2117477756] [2021-11-13 02:35:00,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2117477756] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:35:00,392 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:35:00,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 10 [2021-11-13 02:35:00,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210781302] [2021-11-13 02:35:00,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:35:00,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 02:35:00,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:35:00,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 02:35:00,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-13 02:35:00,394 INFO L87 Difference]: Start difference. First operand 186 states and 246 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 02:35:01,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:35:01,355 INFO L93 Difference]: Finished difference Result 300 states and 399 transitions. [2021-11-13 02:35:01,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 02:35:01,357 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 02:35:01,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:35:01,361 INFO L225 Difference]: With dead ends: 300 [2021-11-13 02:35:01,362 INFO L226 Difference]: Without dead ends: 173 [2021-11-13 02:35:01,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-11-13 02:35:01,364 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 7 mSDsluCounter, 1385 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 758.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.18ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 848.06ms IncrementalHoareTripleChecker+Time [2021-11-13 02:35:01,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 1589 Invalid, 210 Unknown, 0 Unchecked, 11.18ms Time], IncrementalHoareTripleChecker [1 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 848.06ms Time] [2021-11-13 02:35:01,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-11-13 02:35:01,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2021-11-13 02:35:01,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 103 states have (on average 1.145631067961165) internal successors, (118), 105 states have internal predecessors, (118), 53 states have call successors, (53), 16 states have call predecessors, (53), 16 states have return successors, (56), 51 states have call predecessors, (56), 51 states have call successors, (56) [2021-11-13 02:35:01,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 227 transitions. [2021-11-13 02:35:01,388 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 227 transitions. Word has length 154 [2021-11-13 02:35:01,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:35:01,389 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 227 transitions. [2021-11-13 02:35:01,389 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 02:35:01,390 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 227 transitions. [2021-11-13 02:35:01,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-13 02:35:01,393 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:35:01,393 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 02:35:01,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 02:35:01,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:35:01,594 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:35:01,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:35:01,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1806717720, now seen corresponding path program 1 times [2021-11-13 02:35:01,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:35:01,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1053030126] [2021-11-13 02:35:01,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:35:01,597 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:35:01,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:35:01,598 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:35:01,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 02:35:06,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:35:06,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 1951 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 02:35:06,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:35:06,738 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 02:35:06,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:35:07,356 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 02:35:07,356 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:35:07,356 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1053030126] [2021-11-13 02:35:07,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1053030126] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:35:07,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:35:07,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2021-11-13 02:35:07,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856144575] [2021-11-13 02:35:07,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:35:07,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 02:35:07,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:35:07,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 02:35:07,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:35:07,359 INFO L87 Difference]: Start difference. First operand 173 states and 227 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 02:35:08,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:35:08,086 INFO L93 Difference]: Finished difference Result 283 states and 372 transitions. [2021-11-13 02:35:08,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:35:08,088 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 02:35:08,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:35:08,090 INFO L225 Difference]: With dead ends: 283 [2021-11-13 02:35:08,091 INFO L226 Difference]: Without dead ends: 173 [2021-11-13 02:35:08,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-13 02:35:08,092 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 66 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 551.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.76ms SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 650.78ms IncrementalHoareTripleChecker+Time [2021-11-13 02:35:08,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 868 Invalid, 150 Unknown, 0 Unchecked, 5.76ms Time], IncrementalHoareTripleChecker [42 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 650.78ms Time] [2021-11-13 02:35:08,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-11-13 02:35:08,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2021-11-13 02:35:08,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 103 states have (on average 1.145631067961165) internal successors, (118), 105 states have internal predecessors, (118), 53 states have call successors, (53), 16 states have call predecessors, (53), 16 states have return successors, (53), 51 states have call predecessors, (53), 51 states have call successors, (53) [2021-11-13 02:35:08,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 224 transitions. [2021-11-13 02:35:08,114 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 224 transitions. Word has length 165 [2021-11-13 02:35:08,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:35:08,115 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 224 transitions. [2021-11-13 02:35:08,115 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 02:35:08,116 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 224 transitions. [2021-11-13 02:35:08,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-13 02:35:08,119 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:35:08,119 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 02:35:08,177 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-13 02:35:08,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:35:08,332 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:35:08,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:35:08,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1308288628, now seen corresponding path program 2 times [2021-11-13 02:35:08,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:35:08,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [657513264] [2021-11-13 02:35:08,336 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 02:35:08,337 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:35:08,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:35:08,338 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:35:08,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 02:43:15,515 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 02:43:15,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:43:18,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 2031 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 02:43:18,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:43:18,893 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2021-11-13 02:43:18,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:43:19,510 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2021-11-13 02:43:19,511 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:43:19,511 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [657513264] [2021-11-13 02:43:19,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [657513264] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:43:19,511 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:43:19,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 9 [2021-11-13 02:43:19,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669616841] [2021-11-13 02:43:19,512 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:43:19,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 02:43:19,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:43:19,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 02:43:19,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-13 02:43:19,513 INFO L87 Difference]: Start difference. First operand 173 states and 224 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 5 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2021-11-13 02:43:20,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:43:20,391 INFO L93 Difference]: Finished difference Result 277 states and 359 transitions. [2021-11-13 02:43:20,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 02:43:20,392 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 5 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) Word has length 180 [2021-11-13 02:43:20,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:43:20,394 INFO L225 Difference]: With dead ends: 277 [2021-11-13 02:43:20,394 INFO L226 Difference]: Without dead ends: 171 [2021-11-13 02:43:20,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-13 02:43:20,395 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 87 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 671.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.40ms SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 762.22ms IncrementalHoareTripleChecker+Time [2021-11-13 02:43:20,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 1038 Invalid, 195 Unknown, 0 Unchecked, 5.40ms Time], IncrementalHoareTripleChecker [47 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 762.22ms Time] [2021-11-13 02:43:20,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2021-11-13 02:43:20,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2021-11-13 02:43:20,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 102 states have (on average 1.1372549019607843) internal successors, (116), 103 states have internal predecessors, (116), 53 states have call successors, (53), 16 states have call predecessors, (53), 15 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2021-11-13 02:43:20,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 220 transitions. [2021-11-13 02:43:20,428 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 220 transitions. Word has length 180 [2021-11-13 02:43:20,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:43:20,429 INFO L470 AbstractCegarLoop]: Abstraction has 171 states and 220 transitions. [2021-11-13 02:43:20,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 5 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2021-11-13 02:43:20,430 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 220 transitions. [2021-11-13 02:43:20,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-13 02:43:20,433 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:43:20,434 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:43:20,656 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forcibly destroying the process [2021-11-13 02:43:20,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 137 [2021-11-13 02:43:20,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:43:20,755 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:43:20,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:43:20,755 INFO L85 PathProgramCache]: Analyzing trace with hash -32665988, now seen corresponding path program 1 times [2021-11-13 02:43:20,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:43:20,758 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1697556604] [2021-11-13 02:43:20,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:43:20,759 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:43:20,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:43:20,759 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:43:20,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7944508f-afd6-4838-a2ff-a8c51dce2f66/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process