./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_size_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_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/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_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/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_5ba4c3a2-f955-4c18-98a6-3db3c4539242/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 1baae56bade188786b6c048f5a5545dd6165460ea50e58a0310e4360c89d1838 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:51:19,548 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:51:19,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:51:19,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:51:19,583 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:51:19,584 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:51:19,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:51:19,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:51:19,599 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:51:19,601 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:51:19,602 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:51:19,605 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:51:19,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:51:19,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:51:19,613 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:51:19,616 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:51:19,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:51:19,626 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:51:19,629 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:51:19,633 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:51:19,639 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:51:19,641 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:51:19,642 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:51:19,645 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:51:19,650 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:51:19,652 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:51:19,652 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:51:19,654 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:51:19,655 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:51:19,656 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:51:19,657 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:51:19,658 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:51:19,660 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:51:19,661 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:51:19,664 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:51:19,664 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:51:19,665 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:51:19,665 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:51:19,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:51:19,666 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:51:19,667 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:51:19,668 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:51:19,712 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:51:19,713 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:51:19,713 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:51:19,714 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:51:19,714 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:51:19,714 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:51:19,715 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:51:19,715 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:51:19,715 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:51:19,715 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:51:19,715 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:51:19,716 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:51:19,716 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:51:19,716 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:51:19,717 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:51:19,717 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:51:19,718 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:51:19,718 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:51:19,718 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:51:19,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:51:19,719 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:51:19,719 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:51:19,719 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:51:19,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:51:19,719 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:51:19,720 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:51:19,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:51:19,720 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:51:19,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:51:19,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:51:19,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:51:19,721 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:51:19,722 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:51:19,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:51:19,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:51:19,722 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:51:19,722 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:51:19,723 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_5ba4c3a2-f955-4c18-98a6-3db3c4539242/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1baae56bade188786b6c048f5a5545dd6165460ea50e58a0310e4360c89d1838 [2021-11-19 14:51:20,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:51:20,067 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:51:20,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:51:20,072 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:51:20,073 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:51:20,074 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i [2021-11-19 14:51:20,158 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/data/992bbbbae/c569eefaec124795a2d07b73a1d834d2/FLAGfedfd7291 [2021-11-19 14:51:21,038 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:51:21,042 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i [2021-11-19 14:51:21,105 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/data/992bbbbae/c569eefaec124795a2d07b73a1d834d2/FLAGfedfd7291 [2021-11-19 14:51:21,502 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/data/992bbbbae/c569eefaec124795a2d07b73a1d834d2 [2021-11-19 14:51:21,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:51:21,506 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:51:21,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:51:21,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:51:21,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:51:21,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:51:21" (1/1) ... [2021-11-19 14:51:21,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14fb482b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:21, skipping insertion in model container [2021-11-19 14:51:21,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:51:21" (1/1) ... [2021-11-19 14:51:21,521 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:51:21,640 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:51:21,951 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_5ba4c3a2-f955-4c18-98a6-3db3c4539242/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4497,4510] [2021-11-19 14:51:21,958 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_5ba4c3a2-f955-4c18-98a6-3db3c4539242/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4557,4570] [2021-11-19 14:51:21,982 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:51:21,990 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:51:22,946 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:51:23,014 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:23,015 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:23,016 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:23,017 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:23,018 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:23,032 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:23,032 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:23,034 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:23,035 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:23,383 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:51:23,385 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:51:23,386 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:51:23,387 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:51:23,389 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:51:23,390 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:51:23,391 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:51:23,391 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:51:23,392 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:51:23,393 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:51:23,545 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:23,545 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:23,620 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:51:23,652 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 14:51:23,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2c2d1959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:23, skipping insertion in model container [2021-11-19 14:51:23,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:51:23,653 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:51:23,655 INFO L158 Benchmark]: Toolchain (without parser) took 2147.88ms. Allocated memory was 90.2MB in the beginning and 130.0MB in the end (delta: 39.8MB). Free memory was 45.6MB in the beginning and 67.3MB in the end (delta: -21.7MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2021-11-19 14:51:23,656 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 90.2MB. Free memory was 69.8MB in the beginning and 69.7MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:51:23,657 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2145.01ms. Allocated memory was 90.2MB in the beginning and 130.0MB in the end (delta: 39.8MB). Free memory was 45.4MB in the beginning and 67.3MB in the end (delta: -21.9MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2021-11-19 14:51:23,659 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 90.2MB. Free memory was 69.8MB in the beginning and 69.7MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2145.01ms. Allocated memory was 90.2MB in the beginning and 130.0MB in the end (delta: 39.8MB). Free memory was 45.4MB in the beginning and 67.3MB in the end (delta: -21.9MB). Peak memory consumption was 19.2MB. 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_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/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_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/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_5ba4c3a2-f955-4c18-98a6-3db3c4539242/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 1baae56bade188786b6c048f5a5545dd6165460ea50e58a0310e4360c89d1838 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:51:25,952 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:51:25,954 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:51:25,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:51:25,985 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:51:25,987 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:51:25,988 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:51:25,990 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:51:25,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:51:25,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:51:25,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:51:25,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:51:25,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:51:25,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:51:25,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:51:26,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:51:26,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:51:26,004 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:51:26,008 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:51:26,013 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:51:26,018 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:51:26,022 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:51:26,024 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:51:26,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:51:26,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:51:26,029 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:51:26,029 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:51:26,030 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:51:26,031 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:51:26,032 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:51:26,032 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:51:26,033 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:51:26,034 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:51:26,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:51:26,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:51:26,036 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:51:26,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:51:26,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:51:26,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:51:26,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:51:26,039 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:51:26,040 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:51:26,077 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:51:26,077 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:51:26,079 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:51:26,079 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:51:26,079 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:51:26,079 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:51:26,080 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:51:26,080 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:51:26,081 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:51:26,081 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:51:26,083 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:51:26,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:51:26,084 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:51:26,084 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:51:26,084 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:51:26,084 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:51:26,084 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:51:26,085 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:51:26,085 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:51:26,085 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:51:26,085 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:51:26,086 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:51:26,086 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:51:26,086 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:51:26,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:51:26,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:51:26,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:51:26,087 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:51:26,087 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:51:26,087 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:51:26,088 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:51:26,088 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:51:26,088 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:51:26,088 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_5ba4c3a2-f955-4c18-98a6-3db3c4539242/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1baae56bade188786b6c048f5a5545dd6165460ea50e58a0310e4360c89d1838 [2021-11-19 14:51:26,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:51:26,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:51:26,518 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:51:26,519 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:51:26,519 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:51:26,520 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i [2021-11-19 14:51:26,603 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/data/f1c403075/92579e2d6b2a46b08f2cb207ef52cd29/FLAG3f1da3d0e [2021-11-19 14:51:27,499 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:51:27,504 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i [2021-11-19 14:51:27,547 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/data/f1c403075/92579e2d6b2a46b08f2cb207ef52cd29/FLAG3f1da3d0e [2021-11-19 14:51:28,046 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/data/f1c403075/92579e2d6b2a46b08f2cb207ef52cd29 [2021-11-19 14:51:28,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:51:28,050 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:51:28,052 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:51:28,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:51:28,055 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:51:28,056 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:51:28" (1/1) ... [2021-11-19 14:51:28,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3df56d7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:28, skipping insertion in model container [2021-11-19 14:51:28,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:51:28" (1/1) ... [2021-11-19 14:51:28,065 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:51:28,187 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:51:28,437 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_5ba4c3a2-f955-4c18-98a6-3db3c4539242/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4497,4510] [2021-11-19 14:51:28,447 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_5ba4c3a2-f955-4c18-98a6-3db3c4539242/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4557,4570] [2021-11-19 14:51:28,482 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:51:28,489 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:51:29,373 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:51:29,478 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:29,481 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:29,482 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:29,483 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:29,485 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:29,515 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:29,516 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:29,517 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:29,518 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:29,930 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:51:29,931 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:51:29,932 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:51:29,933 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:51:29,935 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:51:29,936 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:51:29,936 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:51:29,937 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:51:29,938 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:51:29,939 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:51:30,103 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:30,104 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:30,166 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:51:30,230 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:51:30,319 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:51:30,327 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_5ba4c3a2-f955-4c18-98a6-3db3c4539242/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4497,4510] [2021-11-19 14:51:30,327 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_5ba4c3a2-f955-4c18-98a6-3db3c4539242/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4557,4570] [2021-11-19 14:51:30,330 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:51:30,333 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:51:30,393 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:51:30,424 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:30,424 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:30,425 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:30,425 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:30,426 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:30,437 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:30,437 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:30,439 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:30,439 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:30,507 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:51:30,508 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:51:30,509 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:51:30,511 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:51:30,512 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:51:30,512 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:51:30,513 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:51:30,513 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:51:30,514 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:51:30,517 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:51:30,575 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:30,576 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:30,625 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:51:30,649 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:51:30,674 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_5ba4c3a2-f955-4c18-98a6-3db3c4539242/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4497,4510] [2021-11-19 14:51:30,675 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_5ba4c3a2-f955-4c18-98a6-3db3c4539242/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4557,4570] [2021-11-19 14:51:30,677 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:51:30,678 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:51:30,710 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:51:30,725 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:30,725 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:30,725 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:30,727 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:30,729 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:30,734 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:30,734 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:30,735 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:30,736 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:30,794 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:51:30,795 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:51:30,796 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:51:30,796 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:51:30,797 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:51:30,798 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:51:30,799 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:51:30,799 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:51:30,800 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:51:30,800 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:51:30,844 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:30,845 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:51:30,865 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:51:31,216 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:51:31,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:31 WrapperNode [2021-11-19 14:51:31,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:51:31,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:51:31,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:51:31,220 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:51:31,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:31" (1/1) ... [2021-11-19 14:51:31,343 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:31" (1/1) ... [2021-11-19 14:51:31,450 INFO L137 Inliner]: procedures = 711, calls = 1533, calls flagged for inlining = 55, calls inlined = 10, statements flattened = 663 [2021-11-19 14:51:31,451 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:51:31,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:51:31,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:51:31,452 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:51:31,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:31" (1/1) ... [2021-11-19 14:51:31,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:31" (1/1) ... [2021-11-19 14:51:31,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:31" (1/1) ... [2021-11-19 14:51:31,491 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:31" (1/1) ... [2021-11-19 14:51:31,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:31" (1/1) ... [2021-11-19 14:51:31,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:31" (1/1) ... [2021-11-19 14:51:31,587 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:31" (1/1) ... [2021-11-19 14:51:31,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:51:31,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:51:31,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:51:31,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:51:31,613 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:31" (1/1) ... [2021-11-19 14:51:31,621 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:51:31,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:51:31,645 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:51:31,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:51:31,692 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2021-11-19 14:51:31,692 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2021-11-19 14:51:31,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:51:31,693 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2021-11-19 14:51:31,693 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2021-11-19 14:51:31,693 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-11-19 14:51:31,693 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-11-19 14:51:31,693 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-19 14:51:31,694 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-19 14:51:31,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:51:31,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:51:31,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 14:51:31,694 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-19 14:51:31,694 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-19 14:51:31,695 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-19 14:51:31,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-19 14:51:31,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:51:31,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:51:31,695 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2021-11-19 14:51:31,695 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2021-11-19 14:51:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:51:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:51:31,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:51:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-19 14:51:31,710 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-19 14:51:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:51:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-19 14:51:31,711 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-19 14:51:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:51:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-19 14:51:31,711 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-19 14:51:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2021-11-19 14:51:31,712 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2021-11-19 14:51:31,712 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2021-11-19 14:51:31,712 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2021-11-19 14:51:31,712 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-19 14:51:31,712 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-19 14:51:31,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:51:31,713 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-19 14:51:31,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:51:31,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:51:31,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:51:31,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:51:31,713 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-19 14:51:31,714 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-19 14:51:31,714 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-19 14:51:31,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-19 14:51:31,714 INFO L130 BoogieDeclarations]: Found specification of procedure assert_array_list_equivalence [2021-11-19 14:51:31,714 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_array_list_equivalence [2021-11-19 14:51:31,714 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2021-11-19 14:51:31,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2021-11-19 14:51:32,081 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:51:32,083 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:51:36,160 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:51:36,178 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:51:36,180 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 14:51:36,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:51:36 BoogieIcfgContainer [2021-11-19 14:51:36,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:51:36,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:51:36,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:51:36,191 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:51:36,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:51:28" (1/3) ... [2021-11-19 14:51:36,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c90c9b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:51:36, skipping insertion in model container [2021-11-19 14:51:36,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:31" (2/3) ... [2021-11-19 14:51:36,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c90c9b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:51:36, skipping insertion in model container [2021-11-19 14:51:36,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:51:36" (3/3) ... [2021-11-19 14:51:36,194 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_size_harness.i [2021-11-19 14:51:36,200 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:51:36,200 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:51:36,274 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:51:36,280 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:51:36,281 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:51:36,302 INFO L276 IsEmpty]: Start isEmpty. Operand has 171 states, 113 states have (on average 1.2300884955752212) internal successors, (139), 114 states have internal predecessors, (139), 39 states have call successors, (39), 17 states have call predecessors, (39), 17 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2021-11-19 14:51:36,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-19 14:51:36,315 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:51:36,316 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:51:36,317 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:51:36,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:51:36,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1923135121, now seen corresponding path program 1 times [2021-11-19 14:51:36,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:51:36,339 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2099116503] [2021-11-19 14:51:36,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:51:36,341 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:51:36,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:51:36,344 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:51:36,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:51:37,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:51:37,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 1384 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 14:51:37,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:51:37,497 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-11-19 14:51:37,498 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:51:37,751 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2021-11-19 14:51:37,752 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:51:37,753 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2099116503] [2021-11-19 14:51:37,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2099116503] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:51:37,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:51:37,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-19 14:51:37,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907932394] [2021-11-19 14:51:37,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:51:37,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 14:51:37,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:51:37,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 14:51:37,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:51:37,804 INFO L87 Difference]: Start difference. First operand has 171 states, 113 states have (on average 1.2300884955752212) internal successors, (139), 114 states have internal predecessors, (139), 39 states have call successors, (39), 17 states have call predecessors, (39), 17 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 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-19 14:51:37,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:51:37,902 INFO L93 Difference]: Finished difference Result 331 states and 448 transitions. [2021-11-19 14:51:37,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 14:51:37,904 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 107 [2021-11-19 14:51:37,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:51:37,914 INFO L225 Difference]: With dead ends: 331 [2021-11-19 14:51:37,915 INFO L226 Difference]: Without dead ends: 166 [2021-11-19 14:51:37,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 212 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 14:51:37,923 INFO L933 BasicCegarLoop]: 214 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, 214 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 14:51:37,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:51:37,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-11-19 14:51:37,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2021-11-19 14:51:37,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 109 states have (on average 1.2110091743119267) internal successors, (132), 110 states have internal predecessors, (132), 39 states have call successors, (39), 17 states have call predecessors, (39), 17 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2021-11-19 14:51:37,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 209 transitions. [2021-11-19 14:51:37,975 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 209 transitions. Word has length 107 [2021-11-19 14:51:37,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:51:37,976 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 209 transitions. [2021-11-19 14:51:37,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-19 14:51:37,977 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 209 transitions. [2021-11-19 14:51:37,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-19 14:51:37,981 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:51:37,981 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:51:38,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:51:38,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:51:38,197 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:51:38,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:51:38,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1898390481, now seen corresponding path program 1 times [2021-11-19 14:51:38,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:51:38,202 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1403091989] [2021-11-19 14:51:38,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:51:38,202 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:51:38,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:51:38,205 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:51:38,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:51:38,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:51:39,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 1384 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:51:39,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:51:39,407 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-19 14:51:39,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:51:39,806 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-11-19 14:51:39,807 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:51:39,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1403091989] [2021-11-19 14:51:39,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1403091989] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:51:39,807 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:51:39,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-19 14:51:39,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71105232] [2021-11-19 14:51:39,808 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:51:39,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:51:39,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:51:39,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:51:39,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:51:39,811 INFO L87 Difference]: Start difference. First operand 166 states and 209 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-19 14:51:40,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:51:40,031 INFO L93 Difference]: Finished difference Result 290 states and 367 transitions. [2021-11-19 14:51:40,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:51:40,032 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 107 [2021-11-19 14:51:40,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:51:40,036 INFO L225 Difference]: With dead ends: 290 [2021-11-19 14:51:40,036 INFO L226 Difference]: Without dead ends: 166 [2021-11-19 14:51:40,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:51:40,039 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 56 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:51:40,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 574 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:51:40,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-11-19 14:51:40,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2021-11-19 14:51:40,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 109 states have (on average 1.201834862385321) internal successors, (131), 110 states have internal predecessors, (131), 39 states have call successors, (39), 17 states have call predecessors, (39), 17 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2021-11-19 14:51:40,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 208 transitions. [2021-11-19 14:51:40,068 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 208 transitions. Word has length 107 [2021-11-19 14:51:40,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:51:40,070 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 208 transitions. [2021-11-19 14:51:40,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-19 14:51:40,071 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 208 transitions. [2021-11-19 14:51:40,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-19 14:51:40,080 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:51:40,080 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:51:40,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:51:40,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:51:40,281 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:51:40,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:51:40,283 INFO L85 PathProgramCache]: Analyzing trace with hash 413511437, now seen corresponding path program 1 times [2021-11-19 14:51:40,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:51:40,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1101293476] [2021-11-19 14:51:40,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:51:40,286 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:51:40,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:51:40,290 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:51:40,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:51:41,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:51:41,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 1414 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:51:41,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:51:41,529 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-19 14:51:41,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:51:42,059 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2021-11-19 14:51:42,059 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:51:42,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1101293476] [2021-11-19 14:51:42,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1101293476] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:51:42,060 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:51:42,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2021-11-19 14:51:42,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494114863] [2021-11-19 14:51:42,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:51:42,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:51:42,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:51:42,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:51:42,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:51:42,062 INFO L87 Difference]: Start difference. First operand 166 states and 208 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-19 14:51:42,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:51:42,725 INFO L93 Difference]: Finished difference Result 309 states and 396 transitions. [2021-11-19 14:51:42,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:51:42,734 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 115 [2021-11-19 14:51:42,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:51:42,738 INFO L225 Difference]: With dead ends: 309 [2021-11-19 14:51:42,738 INFO L226 Difference]: Without dead ends: 168 [2021-11-19 14:51:42,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:51:42,740 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 81 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:51:42,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 1075 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-19 14:51:42,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-11-19 14:51:42,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2021-11-19 14:51:42,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 110 states have (on average 1.2) internal successors, (132), 112 states have internal predecessors, (132), 39 states have call successors, (39), 17 states have call predecessors, (39), 18 states have return successors, (41), 38 states have call predecessors, (41), 38 states have call successors, (41) [2021-11-19 14:51:42,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 212 transitions. [2021-11-19 14:51:42,773 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 212 transitions. Word has length 115 [2021-11-19 14:51:42,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:51:42,774 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 212 transitions. [2021-11-19 14:51:42,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-19 14:51:42,775 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 212 transitions. [2021-11-19 14:51:42,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-19 14:51:42,777 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:51:42,777 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:51:42,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:51:43,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:51:43,005 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:51:43,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:51:43,006 INFO L85 PathProgramCache]: Analyzing trace with hash -445935835, now seen corresponding path program 1 times [2021-11-19 14:51:43,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:51:43,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1929215257] [2021-11-19 14:51:43,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:51:43,009 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:51:43,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:51:43,012 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:51:43,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:51:43,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:51:44,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 1491 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:51:44,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:51:44,424 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-19 14:51:44,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:51:44,773 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-11-19 14:51:44,774 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:51:44,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1929215257] [2021-11-19 14:51:44,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1929215257] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:51:44,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:51:44,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2021-11-19 14:51:44,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082579936] [2021-11-19 14:51:44,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:51:44,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:51:44,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:51:44,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:51:44,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:51:44,777 INFO L87 Difference]: Start difference. First operand 168 states and 212 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-19 14:51:44,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:51:44,882 INFO L93 Difference]: Finished difference Result 297 states and 384 transitions. [2021-11-19 14:51:44,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:51:44,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 130 [2021-11-19 14:51:44,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:51:44,886 INFO L225 Difference]: With dead ends: 297 [2021-11-19 14:51:44,887 INFO L226 Difference]: Without dead ends: 173 [2021-11-19 14:51:44,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:51:44,889 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 10 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:51:44,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 611 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:51:44,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-11-19 14:51:44,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 170. [2021-11-19 14:51:44,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 112 states have (on average 1.1964285714285714) internal successors, (134), 114 states have internal predecessors, (134), 39 states have call successors, (39), 17 states have call predecessors, (39), 18 states have return successors, (41), 38 states have call predecessors, (41), 38 states have call successors, (41) [2021-11-19 14:51:44,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 214 transitions. [2021-11-19 14:51:44,907 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 214 transitions. Word has length 130 [2021-11-19 14:51:44,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:51:44,908 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 214 transitions. [2021-11-19 14:51:44,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-19 14:51:44,909 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 214 transitions. [2021-11-19 14:51:44,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-19 14:51:44,911 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:51:44,911 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:51:44,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:51:45,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:51:45,134 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:51:45,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:51:45,134 INFO L85 PathProgramCache]: Analyzing trace with hash -879664921, now seen corresponding path program 1 times [2021-11-19 14:51:45,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:51:45,136 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [687214241] [2021-11-19 14:51:45,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:51:45,137 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:51:45,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:51:45,138 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:51:45,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:51:46,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:51:46,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 1494 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:51:46,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:51:46,582 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-19 14:51:46,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:51:47,091 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-11-19 14:51:47,091 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:51:47,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [687214241] [2021-11-19 14:51:47,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [687214241] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:51:47,092 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:51:47,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-19 14:51:47,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41400402] [2021-11-19 14:51:47,092 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:51:47,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:51:47,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:51:47,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:51:47,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:51:47,094 INFO L87 Difference]: Start difference. First operand 170 states and 214 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 5 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2021-11-19 14:51:47,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:51:47,421 INFO L93 Difference]: Finished difference Result 299 states and 378 transitions. [2021-11-19 14:51:47,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:51:47,427 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 5 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 130 [2021-11-19 14:51:47,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:51:47,429 INFO L225 Difference]: With dead ends: 299 [2021-11-19 14:51:47,429 INFO L226 Difference]: Without dead ends: 170 [2021-11-19 14:51:47,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:51:47,431 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 100 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:51:47,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 726 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 14:51:47,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-11-19 14:51:47,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2021-11-19 14:51:47,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 112 states have (on average 1.1875) internal successors, (133), 114 states have internal predecessors, (133), 39 states have call successors, (39), 17 states have call predecessors, (39), 18 states have return successors, (41), 38 states have call predecessors, (41), 38 states have call successors, (41) [2021-11-19 14:51:47,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 213 transitions. [2021-11-19 14:51:47,467 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 213 transitions. Word has length 130 [2021-11-19 14:51:47,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:51:47,467 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 213 transitions. [2021-11-19 14:51:47,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 5 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2021-11-19 14:51:47,468 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 213 transitions. [2021-11-19 14:51:47,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-11-19 14:51:47,470 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:51:47,471 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:51:47,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:51:47,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:51:47,679 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:51:47,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:51:47,680 INFO L85 PathProgramCache]: Analyzing trace with hash 391202648, now seen corresponding path program 1 times [2021-11-19 14:51:47,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:51:47,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1416153256] [2021-11-19 14:51:47,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:51:47,682 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:51:47,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:51:47,683 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:51:47,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:51:48,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:51:48,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 1542 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:51:48,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:51:49,209 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-11-19 14:51:49,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:51:49,956 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2021-11-19 14:51:49,956 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:51:49,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1416153256] [2021-11-19 14:51:49,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1416153256] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:51:49,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:51:49,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 11 [2021-11-19 14:51:49,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271213273] [2021-11-19 14:51:49,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:51:49,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:51:49,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:51:49,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:51:49,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:51:49,959 INFO L87 Difference]: Start difference. First operand 170 states and 213 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 5 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2021-11-19 14:51:50,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:51:50,712 INFO L93 Difference]: Finished difference Result 312 states and 395 transitions. [2021-11-19 14:51:50,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 14:51:50,718 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 5 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) Word has length 146 [2021-11-19 14:51:50,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:51:50,720 INFO L225 Difference]: With dead ends: 312 [2021-11-19 14:51:50,720 INFO L226 Difference]: Without dead ends: 170 [2021-11-19 14:51:50,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-11-19 14:51:50,722 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 104 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 1200 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:51:50,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 1200 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-19 14:51:50,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-11-19 14:51:50,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2021-11-19 14:51:50,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 112 states have (on average 1.1875) internal successors, (133), 114 states have internal predecessors, (133), 39 states have call successors, (39), 17 states have call predecessors, (39), 18 states have return successors, (40), 38 states have call predecessors, (40), 38 states have call successors, (40) [2021-11-19 14:51:50,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 212 transitions. [2021-11-19 14:51:50,742 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 212 transitions. Word has length 146 [2021-11-19 14:51:50,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:51:50,743 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 212 transitions. [2021-11-19 14:51:50,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 5 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2021-11-19 14:51:50,744 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 212 transitions. [2021-11-19 14:51:50,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-19 14:51:50,746 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:51:50,747 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-19 14:51:50,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:51:50,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:51:50,948 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:51:50,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:51:50,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1071073244, now seen corresponding path program 2 times [2021-11-19 14:51:50,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:51:50,950 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [429357047] [2021-11-19 14:51:50,950 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 14:51:50,950 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:51:50,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:51:50,951 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:51:50,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:51:57,522 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 14:51:57,522 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:51:57,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 1622 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 14:51:57,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:51:58,530 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-11-19 14:51:58,530 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:51:59,298 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-11-19 14:51:59,299 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:51:59,299 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [429357047] [2021-11-19 14:51:59,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [429357047] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:51:59,300 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:51:59,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-19 14:51:59,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100526315] [2021-11-19 14:51:59,300 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:51:59,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:51:59,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:51:59,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:51:59,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:51:59,302 INFO L87 Difference]: Start difference. First operand 170 states and 212 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-19 14:52:01,391 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:52:03,401 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:52:05,408 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:52:08,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:52:08,971 INFO L93 Difference]: Finished difference Result 315 states and 398 transitions. [2021-11-19 14:52:08,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 14:52:08,975 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 161 [2021-11-19 14:52:08,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:52:08,977 INFO L225 Difference]: With dead ends: 315 [2021-11-19 14:52:08,977 INFO L226 Difference]: Without dead ends: 189 [2021-11-19 14:52:08,978 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:52:08,979 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 27 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 1086 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:52:08,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 1086 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 176 Invalid, 3 Unknown, 0 Unchecked, 9.1s Time] [2021-11-19 14:52:08,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-11-19 14:52:08,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 172. [2021-11-19 14:52:08,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 114 states have (on average 1.1842105263157894) internal successors, (135), 116 states have internal predecessors, (135), 39 states have call successors, (39), 17 states have call predecessors, (39), 18 states have return successors, (40), 38 states have call predecessors, (40), 38 states have call successors, (40) [2021-11-19 14:52:08,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 214 transitions. [2021-11-19 14:52:08,993 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 214 transitions. Word has length 161 [2021-11-19 14:52:08,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:52:08,994 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 214 transitions. [2021-11-19 14:52:08,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-19 14:52:08,994 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 214 transitions. [2021-11-19 14:52:08,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-19 14:52:08,997 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:52:08,997 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-19 14:52:09,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 14:52:09,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:52:09,210 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:52:09,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:52:09,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1111747994, now seen corresponding path program 1 times [2021-11-19 14:52:09,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:52:09,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1361189935] [2021-11-19 14:52:09,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:52:09,212 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:52:09,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:52:09,213 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:52:09,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 14:52:10,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:52:10,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 1620 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:52:10,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:52:11,358 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-11-19 14:52:11,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:52:12,107 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-11-19 14:52:12,108 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:52:12,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1361189935] [2021-11-19 14:52:12,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1361189935] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:52:12,108 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:52:12,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-11-19 14:52:12,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730577095] [2021-11-19 14:52:12,109 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:52:12,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 14:52:12,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:52:12,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 14:52:12,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:52:12,111 INFO L87 Difference]: Start difference. First operand 172 states and 214 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-19 14:52:14,198 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:52:16,211 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:52:18,219 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:52:21,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:52:21,032 INFO L93 Difference]: Finished difference Result 318 states and 400 transitions. [2021-11-19 14:52:21,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-19 14:52:21,035 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 161 [2021-11-19 14:52:21,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:52:21,037 INFO L225 Difference]: With dead ends: 318 [2021-11-19 14:52:21,037 INFO L226 Difference]: Without dead ends: 190 [2021-11-19 14:52:21,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-11-19 14:52:21,039 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 42 mSDsluCounter, 905 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 15 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:52:21,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 1106 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 158 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2021-11-19 14:52:21,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-11-19 14:52:21,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 174. [2021-11-19 14:52:21,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 116 states have (on average 1.1810344827586208) internal successors, (137), 118 states have internal predecessors, (137), 39 states have call successors, (39), 17 states have call predecessors, (39), 18 states have return successors, (40), 38 states have call predecessors, (40), 38 states have call successors, (40) [2021-11-19 14:52:21,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 216 transitions. [2021-11-19 14:52:21,051 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 216 transitions. Word has length 161 [2021-11-19 14:52:21,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:52:21,052 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 216 transitions. [2021-11-19 14:52:21,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-19 14:52:21,052 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 216 transitions. [2021-11-19 14:52:21,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-19 14:52:21,055 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:52:21,055 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-19 14:52:21,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 14:52:21,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:52:21,270 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:52:21,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:52:21,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1987767000, now seen corresponding path program 1 times [2021-11-19 14:52:21,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:52:21,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [290232595] [2021-11-19 14:52:21,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:52:21,272 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:52:21,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:52:21,273 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:52:21,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba4c3a2-f955-4c18-98a6-3db3c4539242/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 14:52:22,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:52:22,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 1617 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-19 14:52:22,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:52:26,792 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-19 14:52:26,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 625 treesize of output 605 [2021-11-19 14:52:29,807 INFO L354 Elim1Store]: treesize reduction 560, result has 54.6 percent of original size [2021-11-19 14:52:29,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 28 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 599 treesize of output 887 [2021-11-19 14:52:29,886 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-19 14:52:29,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1703 treesize of output 1683 [2021-11-19 14:52:31,530 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 60 proven. 4 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-19 14:52:31,531 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:55:23,102 INFO L354 Elim1Store]: treesize reduction 1632, result has 0.1 percent of original size [2021-11-19 14:55:23,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 853 treesize of output 1 [2021-11-19 14:55:50,633 INFO L354 Elim1Store]: treesize reduction 21, result has 54.3 percent of original size [2021-11-19 14:55:50,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 788 treesize of output 788 [2021-11-19 14:55:51,042 INFO L354 Elim1Store]: treesize reduction 21, result has 54.3 percent of original size [2021-11-19 14:55:51,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 784 treesize of output 784 [2021-11-19 14:57:44,771 WARN L227 SmtUtils]: Spent 1.75m on a formula simplification. DAG size of input: 1178 DAG size of output: 750 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 14:57:44,781 INFO L354 Elim1Store]: treesize reduction 1688, result has 56.6 percent of original size [2021-11-19 14:57:44,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 24 select indices, 24 select index equivalence classes, 0 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 276 case distinctions, treesize of input 733 treesize of output 2405