./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 23ef598a219073b4e1ea2c3302ab5b9fcd0bd41db1d8d7141c8967f07530c02d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:28:18,678 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:28:18,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:28:18,738 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:28:18,739 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:28:18,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:28:18,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:28:18,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:28:18,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:28:18,758 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:28:18,759 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:28:18,761 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:28:18,761 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:28:18,764 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:28:18,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:28:18,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:28:18,773 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:28:18,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:28:18,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:28:18,784 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:28:18,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:28:18,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:28:18,791 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:28:18,792 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:28:18,797 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:28:18,797 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:28:18,797 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:28:18,799 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:28:18,800 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:28:18,802 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:28:18,802 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:28:18,803 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:28:18,805 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:28:18,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:28:18,808 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:28:18,809 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:28:18,809 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:28:18,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:28:18,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:28:18,811 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:28:18,812 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:28:18,813 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 13:28:18,858 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:28:18,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:28:18,860 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:28:18,861 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:28:18,861 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:28:18,861 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:28:18,861 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:28:18,862 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:28:18,868 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:28:18,868 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:28:18,869 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:28:18,870 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:28:18,870 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:28:18,870 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:28:18,870 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:28:18,871 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:28:18,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:28:18,872 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:28:18,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:28:18,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:28:18,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:28:18,873 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:28:18,873 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:28:18,873 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:28:18,874 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:28:18,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:28:18,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:28:18,874 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:28:18,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:28:18,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:28:18,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:28:18,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:28:18,876 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:28:18,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:28:18,876 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:28:18,877 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:28:18,877 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:28:18,877 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_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23ef598a219073b4e1ea2c3302ab5b9fcd0bd41db1d8d7141c8967f07530c02d [2021-11-19 13:28:19,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:28:19,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:28:19,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:28:19,246 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:28:19,247 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:28:19,248 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i [2021-11-19 13:28:19,310 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/data/5449c38c5/d62a7d685ca7458e8df4348025d08351/FLAG588f50d40 [2021-11-19 13:28:20,174 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:28:20,175 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i [2021-11-19 13:28:20,216 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/data/5449c38c5/d62a7d685ca7458e8df4348025d08351/FLAG588f50d40 [2021-11-19 13:28:20,708 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/data/5449c38c5/d62a7d685ca7458e8df4348025d08351 [2021-11-19 13:28:20,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:28:20,715 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:28:20,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:28:20,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:28:20,723 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:28:20,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:28:20" (1/1) ... [2021-11-19 13:28:20,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b6d2845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:20, skipping insertion in model container [2021-11-19 13:28:20,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:28:20" (1/1) ... [2021-11-19 13:28:20,733 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:28:20,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:28:21,125 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4504,4517] [2021-11-19 13:28:21,131 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4564,4577] [2021-11-19 13:28:21,150 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 13:28:21,155 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 13:28:21,935 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 13:28:22,001 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:22,002 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:22,003 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:22,004 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:22,005 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:22,019 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:22,020 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:22,022 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:22,023 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:22,422 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 13:28:22,424 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 13:28:22,425 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 13:28:22,426 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 13:28:22,428 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 13:28:22,429 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 13:28:22,430 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 13:28:22,430 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 13:28:22,431 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 13:28:22,432 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 13:28:22,605 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:22,606 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:22,665 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:28:22,697 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 13:28:22,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@53943f5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:22, skipping insertion in model container [2021-11-19 13:28:22,698 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:28:22,699 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 13:28:22,701 INFO L158 Benchmark]: Toolchain (without parser) took 1984.32ms. Allocated memory was 88.1MB in the beginning and 132.1MB in the end (delta: 44.0MB). Free memory was 62.4MB in the beginning and 69.0MB in the end (delta: -6.6MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2021-11-19 13:28:22,702 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 88.1MB. Free memory was 67.9MB in the beginning and 67.9MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:28:22,703 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1979.04ms. Allocated memory was 88.1MB in the beginning and 132.1MB in the end (delta: 44.0MB). Free memory was 62.2MB in the beginning and 69.0MB in the end (delta: -6.8MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2021-11-19 13:28:22,705 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 88.1MB. Free memory was 67.9MB in the beginning and 67.9MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1979.04ms. Allocated memory was 88.1MB in the beginning and 132.1MB in the end (delta: 44.0MB). Free memory was 62.2MB in the beginning and 69.0MB in the end (delta: -6.8MB). Peak memory consumption was 38.8MB. 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_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 23ef598a219073b4e1ea2c3302ab5b9fcd0bd41db1d8d7141c8967f07530c02d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:28:24,990 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:28:24,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:28:25,051 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:28:25,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:28:25,056 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:28:25,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:28:25,063 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:28:25,067 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:28:25,077 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:28:25,079 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:28:25,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:28:25,081 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:28:25,084 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:28:25,086 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:28:25,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:28:25,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:28:25,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:28:25,094 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:28:25,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:28:25,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:28:25,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:28:25,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:28:25,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:28:25,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:28:25,105 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:28:25,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:28:25,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:28:25,107 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:28:25,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:28:25,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:28:25,110 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:28:25,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:28:25,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:28:25,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:28:25,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:28:25,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:28:25,114 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:28:25,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:28:25,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:28:25,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:28:25,117 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 13:28:25,142 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:28:25,142 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:28:25,143 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:28:25,144 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:28:25,144 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:28:25,144 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:28:25,144 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:28:25,144 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:28:25,144 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:28:25,145 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:28:25,145 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:28:25,146 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:28:25,146 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:28:25,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:28:25,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:28:25,146 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:28:25,147 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:28:25,147 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:28:25,147 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:28:25,147 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:28:25,147 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:28:25,147 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:28:25,148 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:28:25,148 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:28:25,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:28:25,148 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:28:25,148 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:28:25,149 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:28:25,149 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:28:25,149 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:28:25,149 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:28:25,149 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:28:25,150 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:28:25,150 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_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23ef598a219073b4e1ea2c3302ab5b9fcd0bd41db1d8d7141c8967f07530c02d [2021-11-19 13:28:25,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:28:25,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:28:25,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:28:25,592 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:28:25,593 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:28:25,594 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i [2021-11-19 13:28:25,664 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/data/22489643c/0578009822e34b5989423ff7c67d8bd4/FLAGd3ff7d915 [2021-11-19 13:28:26,604 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:28:26,605 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i [2021-11-19 13:28:26,653 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/data/22489643c/0578009822e34b5989423ff7c67d8bd4/FLAGd3ff7d915 [2021-11-19 13:28:27,090 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/data/22489643c/0578009822e34b5989423ff7c67d8bd4 [2021-11-19 13:28:27,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:28:27,097 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:28:27,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:28:27,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:28:27,103 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:28:27,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:28:27" (1/1) ... [2021-11-19 13:28:27,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76740d2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:27, skipping insertion in model container [2021-11-19 13:28:27,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:28:27" (1/1) ... [2021-11-19 13:28:27,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:28:27,236 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:28:27,531 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4504,4517] [2021-11-19 13:28:27,537 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4564,4577] [2021-11-19 13:28:27,560 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 13:28:27,566 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 13:28:28,346 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 13:28:28,421 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:28,422 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:28,423 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:28,423 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:28,424 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:28,439 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:28,440 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:28,443 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:28,444 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:28,865 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 13:28:28,866 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 13:28:28,867 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 13:28:28,868 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 13:28:28,870 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 13:28:28,870 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 13:28:28,871 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 13:28:28,872 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 13:28:28,872 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 13:28:28,873 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 13:28:29,053 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:29,054 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:29,117 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:28:29,181 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 13:28:29,225 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:28:29,230 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4504,4517] [2021-11-19 13:28:29,231 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4564,4577] [2021-11-19 13:28:29,233 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 13:28:29,234 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 13:28:29,279 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 13:28:29,297 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:29,298 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:29,298 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:29,299 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:29,300 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:29,309 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:29,309 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:29,311 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:29,311 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:29,356 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 13:28:29,357 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 13:28:29,358 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 13:28:29,359 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 13:28:29,360 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 13:28:29,361 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 13:28:29,361 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 13:28:29,362 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 13:28:29,362 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 13:28:29,363 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 13:28:29,416 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:29,417 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:29,446 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:28:29,474 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:28:29,500 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4504,4517] [2021-11-19 13:28:29,500 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4564,4577] [2021-11-19 13:28:29,502 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 13:28:29,503 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 13:28:29,545 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 13:28:29,564 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:29,564 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:29,564 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:29,565 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:29,565 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:29,572 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:29,572 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:29,573 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:29,573 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:29,654 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 13:28:29,655 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 13:28:29,655 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 13:28:29,656 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 13:28:29,657 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 13:28:29,658 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 13:28:29,658 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 13:28:29,659 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 13:28:29,659 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 13:28:29,660 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 13:28:29,697 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:29,697 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:28:29,728 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:28:30,058 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:28:30,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:30 WrapperNode [2021-11-19 13:28:30,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:28:30,060 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:28:30,060 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:28:30,060 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:28:30,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:30" (1/1) ... [2021-11-19 13:28:30,181 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:30" (1/1) ... [2021-11-19 13:28:30,247 INFO L137 Inliner]: procedures = 711, calls = 1511, calls flagged for inlining = 54, calls inlined = 9, statements flattened = 647 [2021-11-19 13:28:30,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:28:30,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:28:30,249 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:28:30,249 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:28:30,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:30" (1/1) ... [2021-11-19 13:28:30,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:30" (1/1) ... [2021-11-19 13:28:30,279 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:30" (1/1) ... [2021-11-19 13:28:30,279 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:30" (1/1) ... [2021-11-19 13:28:30,315 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:30" (1/1) ... [2021-11-19 13:28:30,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:30" (1/1) ... [2021-11-19 13:28:30,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:30" (1/1) ... [2021-11-19 13:28:30,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:28:30,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:28:30,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:28:30,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:28:30,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:30" (1/1) ... [2021-11-19 13:28:30,352 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:28:30,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:28:30,378 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:28:30,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:28:30,426 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2021-11-19 13:28:30,426 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2021-11-19 13:28:30,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:28:30,426 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-11-19 13:28:30,426 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-11-19 13:28:30,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 13:28:30,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 13:28:30,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 13:28:30,427 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-19 13:28:30,427 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-19 13:28:30,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-19 13:28:30,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-19 13:28:30,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 13:28:30,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:28:30,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 13:28:30,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:28:30,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:28:30,428 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-19 13:28:30,428 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-19 13:28:30,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 13:28:30,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 13:28:30,429 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-19 13:28:30,429 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-19 13:28:30,429 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2021-11-19 13:28:30,429 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2021-11-19 13:28:30,429 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-19 13:28:30,429 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-19 13:28:30,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:28:30,430 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-19 13:28:30,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 13:28:30,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 13:28:30,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 13:28:30,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 13:28:30,430 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-19 13:28:30,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-19 13:28:30,431 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-19 13:28:30,431 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-19 13:28:30,431 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2021-11-19 13:28:30,431 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2021-11-19 13:28:30,431 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2021-11-19 13:28:30,431 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2021-11-19 13:28:30,820 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:28:30,821 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:28:36,429 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:28:36,437 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:28:36,437 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-19 13:28:36,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:28:36 BoogieIcfgContainer [2021-11-19 13:28:36,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:28:36,441 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:28:36,442 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:28:36,444 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:28:36,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:28:27" (1/3) ... [2021-11-19 13:28:36,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62c73cca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:28:36, skipping insertion in model container [2021-11-19 13:28:36,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:30" (2/3) ... [2021-11-19 13:28:36,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62c73cca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:28:36, skipping insertion in model container [2021-11-19 13:28:36,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:28:36" (3/3) ... [2021-11-19 13:28:36,447 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_static_harness.i [2021-11-19 13:28:36,452 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:28:36,453 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 13:28:36,500 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:28:36,507 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 13:28:36,507 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 13:28:36,527 INFO L276 IsEmpty]: Start isEmpty. Operand has 146 states, 94 states have (on average 1.2446808510638299) internal successors, (117), 94 states have internal predecessors, (117), 39 states have call successors, (39), 12 states have call predecessors, (39), 12 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2021-11-19 13:28:36,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-19 13:28:36,538 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:28:36,539 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 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] [2021-11-19 13:28:36,540 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:28:36,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:28:36,545 INFO L85 PathProgramCache]: Analyzing trace with hash 60239536, now seen corresponding path program 1 times [2021-11-19 13:28:36,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:28:36,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [472471823] [2021-11-19 13:28:36,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:28:36,563 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:28:36,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:28:36,568 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:28:36,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 13:28:37,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:28:37,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 1293 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 13:28:37,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:28:37,784 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2021-11-19 13:28:37,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:28:38,073 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2021-11-19 13:28:38,074 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:28:38,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [472471823] [2021-11-19 13:28:38,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [472471823] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:28:38,075 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:28:38,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 13:28:38,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919023337] [2021-11-19 13:28:38,078 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:28:38,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 13:28:38,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:28:38,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 13:28:38,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 13:28:38,125 INFO L87 Difference]: Start difference. First operand has 146 states, 94 states have (on average 1.2446808510638299) internal successors, (117), 94 states have internal predecessors, (117), 39 states have call successors, (39), 12 states have call predecessors, (39), 12 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-19 13:28:38,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:28:38,166 INFO L93 Difference]: Finished difference Result 289 states and 416 transitions. [2021-11-19 13:28:38,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 13:28:38,169 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 109 [2021-11-19 13:28:38,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:28:38,179 INFO L225 Difference]: With dead ends: 289 [2021-11-19 13:28:38,179 INFO L226 Difference]: Without dead ends: 140 [2021-11-19 13:28:38,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 13:28:38,187 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:28:38,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:28:38,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-11-19 13:28:38,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2021-11-19 13:28:38,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 88 states have (on average 1.1931818181818181) internal successors, (105), 89 states have internal predecessors, (105), 39 states have call successors, (39), 12 states have call predecessors, (39), 12 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2021-11-19 13:28:38,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 182 transitions. [2021-11-19 13:28:38,242 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 182 transitions. Word has length 109 [2021-11-19 13:28:38,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:28:38,242 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 182 transitions. [2021-11-19 13:28:38,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-19 13:28:38,243 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 182 transitions. [2021-11-19 13:28:38,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-19 13:28:38,246 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:28:38,247 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 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] [2021-11-19 13:28:38,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 13:28:38,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:28:38,448 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:28:38,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:28:38,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1229861763, now seen corresponding path program 1 times [2021-11-19 13:28:38,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:28:38,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [92453817] [2021-11-19 13:28:38,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:28:38,452 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:28:38,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:28:38,454 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:28:38,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 13:28:39,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:28:39,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 1340 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 13:28:39,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:28:39,682 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2021-11-19 13:28:39,683 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:28:40,256 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2021-11-19 13:28:40,257 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:28:40,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [92453817] [2021-11-19 13:28:40,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [92453817] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:28:40,258 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:28:40,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2021-11-19 13:28:40,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327682369] [2021-11-19 13:28:40,258 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:28:40,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 13:28:40,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:28:40,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 13:28:40,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-19 13:28:40,262 INFO L87 Difference]: Start difference. First operand 140 states and 182 transitions. Second operand has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 9 states have internal predecessors, (53), 6 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) [2021-11-19 13:28:40,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:28:40,448 INFO L93 Difference]: Finished difference Result 253 states and 325 transitions. [2021-11-19 13:28:40,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:28:40,451 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 9 states have internal predecessors, (53), 6 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) Word has length 126 [2021-11-19 13:28:40,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:28:40,455 INFO L225 Difference]: With dead ends: 253 [2021-11-19 13:28:40,455 INFO L226 Difference]: Without dead ends: 140 [2021-11-19 13:28:40,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-11-19 13:28:40,462 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 22 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:28:40,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 695 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:28:40,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-11-19 13:28:40,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2021-11-19 13:28:40,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 88 states have (on average 1.1818181818181819) internal successors, (104), 89 states have internal predecessors, (104), 39 states have call successors, (39), 12 states have call predecessors, (39), 12 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2021-11-19 13:28:40,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 181 transitions. [2021-11-19 13:28:40,490 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 181 transitions. Word has length 126 [2021-11-19 13:28:40,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:28:40,494 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 181 transitions. [2021-11-19 13:28:40,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 9 states have internal predecessors, (53), 6 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) [2021-11-19 13:28:40,495 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 181 transitions. [2021-11-19 13:28:40,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-19 13:28:40,510 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:28:40,510 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 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] [2021-11-19 13:28:40,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 13:28:40,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:28:40,711 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:28:40,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:28:40,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1506740151, now seen corresponding path program 1 times [2021-11-19 13:28:40,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:28:40,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1272615893] [2021-11-19 13:28:40,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:28:40,716 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:28:40,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:28:40,717 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:28:40,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 13:28:41,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:28:41,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 1344 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 13:28:41,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:28:42,011 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2021-11-19 13:28:42,011 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:28:42,778 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2021-11-19 13:28:42,778 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:28:42,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1272615893] [2021-11-19 13:28:42,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1272615893] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:28:42,779 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:28:42,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-11-19 13:28:42,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132626048] [2021-11-19 13:28:42,779 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:28:42,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-19 13:28:42,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:28:42,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-19 13:28:42,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-11-19 13:28:42,781 INFO L87 Difference]: Start difference. First operand 140 states and 181 transitions. Second operand has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 11 states have internal predecessors, (55), 6 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) [2021-11-19 13:28:43,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:28:43,061 INFO L93 Difference]: Finished difference Result 255 states and 327 transitions. [2021-11-19 13:28:43,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 13:28:43,062 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 11 states have internal predecessors, (55), 6 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) Word has length 127 [2021-11-19 13:28:43,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:28:43,065 INFO L225 Difference]: With dead ends: 255 [2021-11-19 13:28:43,065 INFO L226 Difference]: Without dead ends: 142 [2021-11-19 13:28:43,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-11-19 13:28:43,069 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 21 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:28:43,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 1032 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 13:28:43,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-11-19 13:28:43,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 141. [2021-11-19 13:28:43,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 89 states have (on average 1.1797752808988764) internal successors, (105), 90 states have internal predecessors, (105), 39 states have call successors, (39), 12 states have call predecessors, (39), 12 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2021-11-19 13:28:43,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 182 transitions. [2021-11-19 13:28:43,086 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 182 transitions. Word has length 127 [2021-11-19 13:28:43,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:28:43,087 INFO L470 AbstractCegarLoop]: Abstraction has 141 states and 182 transitions. [2021-11-19 13:28:43,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 11 states have internal predecessors, (55), 6 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) [2021-11-19 13:28:43,088 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 182 transitions. [2021-11-19 13:28:43,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-19 13:28:43,090 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:28:43,090 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 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] [2021-11-19 13:28:43,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 13:28:43,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:28:43,303 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:28:43,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:28:43,304 INFO L85 PathProgramCache]: Analyzing trace with hash 647415719, now seen corresponding path program 1 times [2021-11-19 13:28:43,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:28:43,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [330274975] [2021-11-19 13:28:43,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:28:43,306 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:28:43,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:28:43,307 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:28:43,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 13:28:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:28:44,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 1349 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 13:28:44,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:28:44,671 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 189 proven. 1 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2021-11-19 13:28:44,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:28:45,543 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2021-11-19 13:28:45,544 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:28:45,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [330274975] [2021-11-19 13:28:45,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [330274975] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:28:45,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1891253438] [2021-11-19 13:28:45,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:28:45,545 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:28:45,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:28:45,548 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:28:45,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-11-19 13:28:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:28:46,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 1349 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 13:28:46,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:28:46,708 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2021-11-19 13:28:46,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:28:47,163 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2021-11-19 13:28:47,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1891253438] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:28:47,163 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 13:28:47,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [8, 8] total 19 [2021-11-19 13:28:47,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991771481] [2021-11-19 13:28:47,164 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:28:47,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:28:47,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:28:47,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:28:47,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-11-19 13:28:47,165 INFO L87 Difference]: Start difference. First operand 141 states and 182 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 5 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2021-11-19 13:28:49,364 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:28:49,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:28:49,683 INFO L93 Difference]: Finished difference Result 237 states and 303 transitions. [2021-11-19 13:28:49,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 13:28:49,686 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 5 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) Word has length 129 [2021-11-19 13:28:49,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:28:49,690 INFO L225 Difference]: With dead ends: 237 [2021-11-19 13:28:49,690 INFO L226 Difference]: Without dead ends: 143 [2021-11-19 13:28:49,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 515 GetRequests, 495 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=67, Invalid=395, Unknown=0, NotChecked=0, Total=462 [2021-11-19 13:28:49,692 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 50 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:28:49,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 754 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 68 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-19 13:28:49,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-11-19 13:28:49,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2021-11-19 13:28:49,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 90 states have (on average 1.1777777777777778) internal successors, (106), 92 states have internal predecessors, (106), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (40), 38 states have call predecessors, (40), 38 states have call successors, (40) [2021-11-19 13:28:49,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 185 transitions. [2021-11-19 13:28:49,715 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 185 transitions. Word has length 129 [2021-11-19 13:28:49,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:28:49,716 INFO L470 AbstractCegarLoop]: Abstraction has 143 states and 185 transitions. [2021-11-19 13:28:49,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 5 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2021-11-19 13:28:49,716 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 185 transitions. [2021-11-19 13:28:49,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-19 13:28:49,718 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:28:49,719 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:28:49,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-19 13:28:49,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2021-11-19 13:28:50,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 13:28:50,134 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:28:50,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:28:50,135 INFO L85 PathProgramCache]: Analyzing trace with hash -2144851837, now seen corresponding path program 1 times [2021-11-19 13:28:50,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:28:50,136 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [62358851] [2021-11-19 13:28:50,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:28:50,137 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:28:50,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:28:50,138 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:28:50,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 13:28:50,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:28:51,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 1429 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 13:28:51,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:28:51,489 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 198 proven. 1 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2021-11-19 13:28:51,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:28:52,265 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2021-11-19 13:28:52,265 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:28:52,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [62358851] [2021-11-19 13:28:52,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [62358851] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:28:52,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [966764691] [2021-11-19 13:28:52,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:28:52,266 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:28:52,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:28:52,267 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:28:52,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-11-19 13:28:54,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:28:54,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 1429 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 13:28:54,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:28:54,971 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 198 proven. 1 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2021-11-19 13:28:54,972 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:28:55,527 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2021-11-19 13:28:55,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [966764691] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:28:55,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121311034] [2021-11-19 13:28:55,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:28:55,528 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:28:55,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:28:55,530 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:28:55,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-19 13:28:56,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:28:56,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 1429 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 13:28:56,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:28:56,769 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 198 proven. 1 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2021-11-19 13:28:56,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:28:57,362 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2021-11-19 13:28:57,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [121311034] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:28:57,362 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 13:28:57,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 13 [2021-11-19 13:28:57,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492740936] [2021-11-19 13:28:57,363 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 13:28:57,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-19 13:28:57,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:28:57,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 13:28:57,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-11-19 13:28:57,366 INFO L87 Difference]: Start difference. First operand 143 states and 185 transitions. Second operand has 13 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 13 states have internal predecessors, (69), 6 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2021-11-19 13:28:57,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:28:57,661 INFO L93 Difference]: Finished difference Result 261 states and 335 transitions. [2021-11-19 13:28:57,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 13:28:57,667 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 13 states have internal predecessors, (69), 6 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) Word has length 144 [2021-11-19 13:28:57,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:28:57,669 INFO L225 Difference]: With dead ends: 261 [2021-11-19 13:28:57,669 INFO L226 Difference]: Without dead ends: 146 [2021-11-19 13:28:57,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 861 GetRequests, 847 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2021-11-19 13:28:57,671 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 29 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:28:57,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 1208 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 13:28:57,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-11-19 13:28:57,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 145. [2021-11-19 13:28:57,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 92 states have (on average 1.173913043478261) internal successors, (108), 94 states have internal predecessors, (108), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (40), 38 states have call predecessors, (40), 38 states have call successors, (40) [2021-11-19 13:28:57,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 187 transitions. [2021-11-19 13:28:57,687 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 187 transitions. Word has length 144 [2021-11-19 13:28:57,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:28:57,688 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 187 transitions. [2021-11-19 13:28:57,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 13 states have internal predecessors, (69), 6 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2021-11-19 13:28:57,688 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 187 transitions. [2021-11-19 13:28:57,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-11-19 13:28:57,690 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:28:57,691 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-19 13:28:57,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 13:28:57,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-11-19 13:28:58,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2021-11-19 13:28:58,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 13:28:58,312 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:28:58,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:28:58,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1506492645, now seen corresponding path program 2 times [2021-11-19 13:28:58,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:28:58,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [45932325] [2021-11-19 13:28:58,314 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 13:28:58,314 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:28:58,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:28:58,315 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:28:58,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 13:29:42,129 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 13:29:42,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:29:43,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 1434 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 13:29:43,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:29:43,565 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 198 proven. 4 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2021-11-19 13:29:43,565 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:29:44,464 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2021-11-19 13:29:44,464 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:29:44,464 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [45932325] [2021-11-19 13:29:44,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [45932325] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:29:44,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1480383096] [2021-11-19 13:29:44,465 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 13:29:44,465 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:29:44,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:29:44,466 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:29:44,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-11-19 13:32:55,897 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 13:32:55,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:32:56,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 1434 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 13:32:56,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:32:56,411 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 198 proven. 4 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2021-11-19 13:32:56,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:32:57,012 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2021-11-19 13:32:57,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1480383096] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:32:57,013 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [600200747] [2021-11-19 13:32:57,013 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 13:32:57,013 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:32:57,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:32:57,014 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:32:57,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-19 13:36:00,297 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 13:36:00,297 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:36:00,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 1434 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 13:36:00,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:36:01,029 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 198 proven. 4 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2021-11-19 13:36:01,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:36:02,404 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2021-11-19 13:36:02,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [600200747] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:36:02,405 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 13:36:02,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 10, 10] total 25 [2021-11-19 13:36:02,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150373055] [2021-11-19 13:36:02,405 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 13:36:02,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-19 13:36:02,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:36:02,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-19 13:36:02,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=490, Unknown=0, NotChecked=0, Total=600 [2021-11-19 13:36:02,417 INFO L87 Difference]: Start difference. First operand 145 states and 187 transitions. Second operand has 25 states, 22 states have (on average 4.0) internal successors, (88), 25 states have internal predecessors, (88), 8 states have call successors, (36), 2 states have call predecessors, (36), 7 states have return successors, (38), 8 states have call predecessors, (38), 8 states have call successors, (38) [2021-11-19 13:36:03,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:36:03,328 INFO L93 Difference]: Finished difference Result 263 states and 337 transitions. [2021-11-19 13:36:03,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-19 13:36:03,332 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 22 states have (on average 4.0) internal successors, (88), 25 states have internal predecessors, (88), 8 states have call successors, (36), 2 states have call predecessors, (36), 7 states have return successors, (38), 8 states have call predecessors, (38), 8 states have call successors, (38) Word has length 146 [2021-11-19 13:36:03,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:36:03,334 INFO L225 Difference]: With dead ends: 263 [2021-11-19 13:36:03,334 INFO L226 Difference]: Without dead ends: 148 [2021-11-19 13:36:03,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 875 GetRequests, 847 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=165, Invalid=705, Unknown=0, NotChecked=0, Total=870 [2021-11-19 13:36:03,336 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 47 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 1722 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 13:36:03,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 1722 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 13:36:03,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-11-19 13:36:03,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 147. [2021-11-19 13:36:03,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 94 states have (on average 1.1702127659574468) internal successors, (110), 96 states have internal predecessors, (110), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (40), 38 states have call predecessors, (40), 38 states have call successors, (40) [2021-11-19 13:36:03,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 189 transitions. [2021-11-19 13:36:03,350 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 189 transitions. Word has length 146 [2021-11-19 13:36:03,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:36:03,351 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 189 transitions. [2021-11-19 13:36:03,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 22 states have (on average 4.0) internal successors, (88), 25 states have internal predecessors, (88), 8 states have call successors, (36), 2 states have call predecessors, (36), 7 states have return successors, (38), 8 states have call predecessors, (38), 8 states have call successors, (38) [2021-11-19 13:36:03,351 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 189 transitions. [2021-11-19 13:36:03,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-19 13:36:03,353 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:36:03,354 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:36:03,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 13:36:03,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2021-11-19 13:36:03,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-19 13:36:03,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:36:03,963 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:36:03,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:36:03,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1460259015, now seen corresponding path program 3 times [2021-11-19 13:36:03,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:36:03,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685783937] [2021-11-19 13:36:03,965 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 13:36:03,965 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:36:03,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:36:03,966 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:36:03,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b961b8-defd-43aa-8965-04a69b8a30da/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-19 13:41:26,950 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-19 13:41:26,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:41:31,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 1201 conjuncts, 50 conjunts are in the unsatisfiable core [2021-11-19 13:41:31,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:32,065 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:41:32,066 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:41:32,066 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:41:32,067 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:41:32,067 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:41:32,068 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:41:32,068 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:41:36,103 INFO L354 Elim1Store]: treesize reduction 8400, result has 1.8 percent of original size [2021-11-19 13:41:36,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 16 case distinctions, treesize of input 119 treesize of output 156 [2021-11-19 13:41:55,457 WARN L227 SmtUtils]: Spent 8.56s on a formula simplification that was a NOOP. DAG size: 108 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)