./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_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_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/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_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/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_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/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 1d3eb02e894c2acef7732d0e57c112cc2c197f8f03d7c13822f169fbed4dc5e5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:16:46,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:16:46,929 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:16:46,960 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:16:46,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:16:46,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:16:46,964 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:16:46,967 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:16:46,970 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:16:46,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:16:46,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:16:46,975 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:16:46,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:16:46,977 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:16:46,979 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:16:46,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:16:46,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:16:46,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:16:46,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:16:46,989 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:16:46,991 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:16:46,993 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:16:46,995 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:16:46,996 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:16:47,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:16:47,001 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:16:47,002 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:16:47,003 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:16:47,004 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:16:47,005 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:16:47,006 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:16:47,007 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:16:47,008 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:16:47,010 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:16:47,011 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:16:47,012 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:16:47,013 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:16:47,013 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:16:47,014 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:16:47,015 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:16:47,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:16:47,017 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:16:47,041 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:16:47,042 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:16:47,043 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:16:47,043 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:16:47,044 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:16:47,044 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:16:47,045 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:16:47,045 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:16:47,046 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:16:47,046 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:16:47,046 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:16:47,047 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:16:47,047 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:16:47,048 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:16:47,048 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:16:47,049 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:16:47,050 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:16:47,050 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:16:47,051 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:16:47,051 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:16:47,051 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:16:47,052 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:16:47,052 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:16:47,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:16:47,053 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:16:47,054 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:16:47,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:16:47,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:16:47,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:16:47,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:16:47,055 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:16:47,056 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:16:47,056 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:16:47,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:16:47,056 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:16:47,057 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:16:47,057 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:16:47,057 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_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d3eb02e894c2acef7732d0e57c112cc2c197f8f03d7c13822f169fbed4dc5e5 [2021-11-19 14:16:47,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:16:47,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:16:47,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:16:47,350 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:16:47,350 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:16:47,352 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i [2021-11-19 14:16:47,440 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/data/e02673c9c/318c2ca2fc2c43c8964f0e2fefc03047/FLAGe5247303e [2021-11-19 14:16:48,398 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:16:48,400 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i [2021-11-19 14:16:48,456 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/data/e02673c9c/318c2ca2fc2c43c8964f0e2fefc03047/FLAGe5247303e [2021-11-19 14:16:48,836 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/data/e02673c9c/318c2ca2fc2c43c8964f0e2fefc03047 [2021-11-19 14:16:48,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:16:48,839 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:16:48,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:16:48,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:16:48,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:16:48,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:16:48" (1/1) ... [2021-11-19 14:16:48,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6842be4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:48, skipping insertion in model container [2021-11-19 14:16:48,848 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:16:48" (1/1) ... [2021-11-19 14:16:48,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:16:48,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:16:49,252 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_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4504,4517] [2021-11-19 14:16:49,259 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_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4564,4577] [2021-11-19 14:16:49,282 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:16:49,287 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:16:50,210 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:50,211 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:50,211 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:50,212 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:50,214 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:50,229 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:50,230 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:50,233 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:50,233 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:50,236 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:50,237 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:50,238 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:50,239 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:50,683 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:16:50,685 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:16:50,686 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:16:50,688 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:16:50,690 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:16:50,691 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:16:50,692 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:16:50,692 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:16:50,693 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:16:50,694 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:16:50,866 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:16:50,894 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:50,894 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:50,901 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:50,909 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:51,031 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:51,050 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:51,050 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:51,051 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:51,051 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:51,051 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:51,052 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:51,053 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:51,053 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:51,053 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:51,054 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:51,054 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:51,054 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:51,070 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:51,071 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:51,072 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:51,072 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:51,077 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:51,080 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:51,099 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:51,102 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:51,102 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:51,128 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:16:51,188 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 14:16:51,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@220018d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:51, skipping insertion in model container [2021-11-19 14:16:51,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:16:51,190 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:16:51,194 INFO L158 Benchmark]: Toolchain (without parser) took 2351.73ms. Allocated memory was 96.5MB in the beginning and 127.9MB in the end (delta: 31.5MB). Free memory was 53.7MB in the beginning and 88.3MB in the end (delta: -34.6MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. [2021-11-19 14:16:51,195 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 96.5MB. Free memory was 68.4MB in the beginning and 68.3MB in the end (delta: 27.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:16:51,197 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2348.89ms. Allocated memory was 96.5MB in the beginning and 127.9MB in the end (delta: 31.5MB). Free memory was 53.6MB in the beginning and 88.3MB in the end (delta: -34.7MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. [2021-11-19 14:16:51,200 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 96.5MB. Free memory was 68.4MB in the beginning and 68.3MB in the end (delta: 27.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2348.89ms. Allocated memory was 96.5MB in the beginning and 127.9MB in the end (delta: 31.5MB). Free memory was 53.6MB in the beginning and 88.3MB in the end (delta: -34.7MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7039]: 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_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/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_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/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_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/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 1d3eb02e894c2acef7732d0e57c112cc2c197f8f03d7c13822f169fbed4dc5e5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:16:53,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:16:53,773 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:16:53,830 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:16:53,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:16:53,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:16:53,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:16:53,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:16:53,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:16:53,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:16:53,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:16:53,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:16:53,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:16:53,861 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:16:53,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:16:53,867 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:16:53,869 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:16:53,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:16:53,873 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:16:53,886 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:16:53,888 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:16:53,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:16:53,894 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:16:53,896 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:16:53,905 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:16:53,905 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:16:53,906 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:16:53,908 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:16:53,909 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:16:53,910 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:16:53,911 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:16:53,912 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:16:53,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:16:53,915 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:16:53,917 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:16:53,917 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:16:53,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:16:53,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:16:53,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:16:53,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:16:53,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:16:53,929 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:16:53,973 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:16:53,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:16:53,975 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:16:53,975 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:16:53,976 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:16:53,976 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:16:53,977 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:16:53,977 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:16:53,977 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:16:53,977 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:16:53,980 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:16:53,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:16:53,980 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:16:53,981 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:16:53,981 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:16:53,981 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:16:53,981 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:16:53,982 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:16:53,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:16:53,982 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:16:53,982 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:16:53,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:16:53,983 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:16:53,983 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:16:53,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:16:53,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:16:53,984 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:16:53,984 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:16:53,984 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:16:53,985 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:16:53,985 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:16:53,985 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:16:53,985 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:16:53,986 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_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d3eb02e894c2acef7732d0e57c112cc2c197f8f03d7c13822f169fbed4dc5e5 [2021-11-19 14:16:54,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:16:54,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:16:54,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:16:54,401 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:16:54,402 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:16:54,404 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i [2021-11-19 14:16:54,474 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/data/6474bafcd/c27e99ce6184432ea5fa86c032f06655/FLAG57ee820f4 [2021-11-19 14:16:55,474 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:16:55,476 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i [2021-11-19 14:16:55,521 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/data/6474bafcd/c27e99ce6184432ea5fa86c032f06655/FLAG57ee820f4 [2021-11-19 14:16:55,935 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/data/6474bafcd/c27e99ce6184432ea5fa86c032f06655 [2021-11-19 14:16:55,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:16:55,938 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:16:55,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:16:55,942 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:16:55,945 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:16:55,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:16:55" (1/1) ... [2021-11-19 14:16:55,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ec9d6b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:55, skipping insertion in model container [2021-11-19 14:16:55,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:16:55" (1/1) ... [2021-11-19 14:16:55,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:16:56,110 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:16:56,393 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_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4504,4517] [2021-11-19 14:16:56,404 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_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4564,4577] [2021-11-19 14:16:56,439 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:16:56,447 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:16:57,775 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:57,778 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:57,779 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:57,780 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:57,781 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:57,807 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:57,809 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:57,812 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:57,814 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:57,818 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:57,819 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:57,821 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:57,822 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,312 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:16:58,314 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:16:58,315 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:16:58,316 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:16:58,318 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:16:58,319 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:16:58,320 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:16:58,320 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:16:58,321 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:16:58,322 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:16:58,493 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:16:58,520 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,520 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,526 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,535 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,649 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,650 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,650 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,651 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,651 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,652 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,652 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,657 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,657 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,659 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,660 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,661 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,661 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,667 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,668 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,668 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,669 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,672 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,685 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,705 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,707 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,707 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,725 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:16:58,763 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:16:58,862 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:16:58,866 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_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4504,4517] [2021-11-19 14:16:58,867 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_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4564,4577] [2021-11-19 14:16:58,869 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:16:58,870 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:16:58,910 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,910 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,911 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,911 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,912 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,921 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,921 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,922 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,923 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,924 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,925 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,926 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:58,926 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,003 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:16:59,004 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:16:59,005 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:16:59,006 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:16:59,007 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:16:59,008 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:16:59,008 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:16:59,009 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:16:59,010 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:16:59,010 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:16:59,033 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:16:59,049 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,050 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,051 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,056 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,085 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,088 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,089 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,090 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,090 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,091 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,092 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,093 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,094 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,094 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,095 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,096 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,097 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,097 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,098 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,098 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,099 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,104 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,105 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,115 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,117 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,117 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,136 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:16:59,204 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:16:59,232 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_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4504,4517] [2021-11-19 14:16:59,232 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_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4564,4577] [2021-11-19 14:16:59,234 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:16:59,235 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:16:59,277 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,279 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,279 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,280 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,280 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,288 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,289 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,290 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,290 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,291 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,292 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,292 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,293 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,331 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:16:59,332 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:16:59,333 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:16:59,334 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:16:59,335 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:16:59,336 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:16:59,336 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:16:59,337 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:16:59,338 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:16:59,338 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:16:59,394 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:16:59,410 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,410 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,411 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,416 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,449 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,454 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,455 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,455 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,456 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,457 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,461 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,462 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,462 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,462 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,463 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,464 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,464 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,465 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,466 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,472 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,473 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,476 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,476 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,483 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,484 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,484 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:16:59,509 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:16:59,988 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:16:59,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:59 WrapperNode [2021-11-19 14:16:59,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:16:59,990 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:16:59,991 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:16:59,992 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:16:59,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:59" (1/1) ... [2021-11-19 14:17:00,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:59" (1/1) ... [2021-11-19 14:17:00,241 INFO L137 Inliner]: procedures = 719, calls = 1907, calls flagged for inlining = 59, calls inlined = 14, statements flattened = 831 [2021-11-19 14:17:00,253 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:17:00,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:17:00,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:17:00,260 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:17:00,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:59" (1/1) ... [2021-11-19 14:17:00,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:59" (1/1) ... [2021-11-19 14:17:00,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:59" (1/1) ... [2021-11-19 14:17:00,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:59" (1/1) ... [2021-11-19 14:17:00,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:59" (1/1) ... [2021-11-19 14:17:00,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:59" (1/1) ... [2021-11-19 14:17:00,368 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:59" (1/1) ... [2021-11-19 14:17:00,383 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:17:00,394 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:17:00,394 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:17:00,394 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:17:00,395 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:59" (1/1) ... [2021-11-19 14:17:00,403 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:17:00,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:17:00,431 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:17:00,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:17:00,486 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2021-11-19 14:17:00,486 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2021-11-19 14:17:00,487 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2021-11-19 14:17:00,487 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2021-11-19 14:17:00,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:17:00,487 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2021-11-19 14:17:00,487 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2021-11-19 14:17:00,488 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-11-19 14:17:00,488 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-11-19 14:17:00,488 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-19 14:17:00,488 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-19 14:17:00,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:17:00,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:17:00,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 14:17:00,489 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-19 14:17:00,489 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-19 14:17:00,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-19 14:17:00,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-19 14:17:00,490 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-19 14:17:00,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-19 14:17:00,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:17:00,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:17:00,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:17:00,491 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2021-11-19 14:17:00,491 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2021-11-19 14:17:00,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:17:00,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:17:00,494 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-19 14:17:00,494 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-19 14:17:00,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:17:00,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:17:00,495 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2021-11-19 14:17:00,495 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2021-11-19 14:17:00,495 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-19 14:17:00,495 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-19 14:17:00,495 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2021-11-19 14:17:00,495 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2021-11-19 14:17:00,496 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2021-11-19 14:17:00,496 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2021-11-19 14:17:00,496 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2021-11-19 14:17:00,496 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2021-11-19 14:17:00,496 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-19 14:17:00,497 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-19 14:17:00,497 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2021-11-19 14:17:00,497 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2021-11-19 14:17:00,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:17:00,497 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-19 14:17:00,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:17:00,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:17:00,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:17:00,498 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_down [2021-11-19 14:17:00,498 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_down [2021-11-19 14:17:00,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:17:00,498 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2021-11-19 14:17:00,499 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2021-11-19 14:17:00,499 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-19 14:17:00,499 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-19 14:17:00,499 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-19 14:17:00,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-19 14:17:00,500 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2021-11-19 14:17:00,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2021-11-19 14:17:00,500 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2021-11-19 14:17:00,500 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2021-11-19 14:17:00,938 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:17:00,940 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:17:05,778 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:17:05,790 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:17:05,790 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-19 14:17:05,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:17:05 BoogieIcfgContainer [2021-11-19 14:17:05,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:17:05,795 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:17:05,795 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:17:05,798 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:17:05,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:16:55" (1/3) ... [2021-11-19 14:17:05,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f8deb3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:17:05, skipping insertion in model container [2021-11-19 14:17:05,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:59" (2/3) ... [2021-11-19 14:17:05,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f8deb3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:17:05, skipping insertion in model container [2021-11-19 14:17:05,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:17:05" (3/3) ... [2021-11-19 14:17:05,801 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_down_harness.i [2021-11-19 14:17:05,807 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:17:05,807 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:17:05,867 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:17:05,872 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:17:05,873 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:17:05,905 INFO L276 IsEmpty]: Start isEmpty. Operand has 324 states, 195 states have (on average 1.235897435897436) internal successors, (241), 196 states have internal predecessors, (241), 104 states have call successors, (104), 23 states have call predecessors, (104), 23 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2021-11-19 14:17:05,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-19 14:17:05,942 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:05,943 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:17:05,944 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:17:05,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:05,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1926734945, now seen corresponding path program 1 times [2021-11-19 14:17:05,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:05,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1223502630] [2021-11-19 14:17:05,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:05,971 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:05,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:05,977 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:05,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:17:06,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:06,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 1429 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 14:17:06,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:07,236 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-19 14:17:07,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:07,642 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2021-11-19 14:17:07,643 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:07,643 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1223502630] [2021-11-19 14:17:07,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1223502630] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:17:07,645 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:17:07,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 14:17:07,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524591085] [2021-11-19 14:17:07,647 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:07,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 14:17:07,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:07,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 14:17:07,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:17:07,697 INFO L87 Difference]: Start difference. First operand has 324 states, 195 states have (on average 1.235897435897436) internal successors, (241), 196 states have internal predecessors, (241), 104 states have call successors, (104), 23 states have call predecessors, (104), 23 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-19 14:17:07,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:07,822 INFO L93 Difference]: Finished difference Result 625 states and 944 transitions. [2021-11-19 14:17:07,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 14:17:07,825 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 156 [2021-11-19 14:17:07,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:07,851 INFO L225 Difference]: With dead ends: 625 [2021-11-19 14:17:07,851 INFO L226 Difference]: Without dead ends: 319 [2021-11-19 14:17:07,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 310 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 14:17:07,866 INFO L933 BasicCegarLoop]: 442 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, 442 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 14:17:07,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:17:07,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-11-19 14:17:07,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2021-11-19 14:17:07,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 191 states have (on average 1.2041884816753927) internal successors, (230), 192 states have internal predecessors, (230), 104 states have call successors, (104), 23 states have call predecessors, (104), 23 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2021-11-19 14:17:07,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 437 transitions. [2021-11-19 14:17:07,954 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 437 transitions. Word has length 156 [2021-11-19 14:17:07,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:07,956 INFO L470 AbstractCegarLoop]: Abstraction has 319 states and 437 transitions. [2021-11-19 14:17:07,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-19 14:17:07,957 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 437 transitions. [2021-11-19 14:17:07,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-19 14:17:07,965 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:07,966 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:17:07,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:17:08,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:08,184 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:17:08,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:08,185 INFO L85 PathProgramCache]: Analyzing trace with hash -860999513, now seen corresponding path program 1 times [2021-11-19 14:17:08,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:08,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1772254075] [2021-11-19 14:17:08,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:08,188 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:08,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:08,189 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:08,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:17:08,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:08,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 1429 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:17:09,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:09,512 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-19 14:17:09,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:10,062 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2021-11-19 14:17:10,063 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:10,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1772254075] [2021-11-19 14:17:10,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1772254075] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:17:10,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:17:10,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2021-11-19 14:17:10,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374407569] [2021-11-19 14:17:10,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:10,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:17:10,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:10,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:17:10,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:17:10,067 INFO L87 Difference]: Start difference. First operand 319 states and 437 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-19 14:17:10,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:10,461 INFO L93 Difference]: Finished difference Result 592 states and 816 transitions. [2021-11-19 14:17:10,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:17:10,462 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 156 [2021-11-19 14:17:10,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:10,469 INFO L225 Difference]: With dead ends: 592 [2021-11-19 14:17:10,469 INFO L226 Difference]: Without dead ends: 321 [2021-11-19 14:17:10,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 306 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 14:17:10,473 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 47 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 1582 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:17:10,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 1582 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 14:17:10,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2021-11-19 14:17:10,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2021-11-19 14:17:10,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 192 states have (on average 1.203125) internal successors, (231), 194 states have internal predecessors, (231), 104 states have call successors, (104), 23 states have call predecessors, (104), 24 states have return successors, (107), 103 states have call predecessors, (107), 103 states have call successors, (107) [2021-11-19 14:17:10,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 442 transitions. [2021-11-19 14:17:10,516 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 442 transitions. Word has length 156 [2021-11-19 14:17:10,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:10,517 INFO L470 AbstractCegarLoop]: Abstraction has 321 states and 442 transitions. [2021-11-19 14:17:10,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-19 14:17:10,517 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 442 transitions. [2021-11-19 14:17:10,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-19 14:17:10,521 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:10,521 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:17:10,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:17:10,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:10,743 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:17:10,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:10,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1740163981, now seen corresponding path program 1 times [2021-11-19 14:17:10,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:10,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1292262399] [2021-11-19 14:17:10,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:10,747 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:10,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:10,750 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:10,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:17:11,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:11,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 1459 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:17:11,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:12,165 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-19 14:17:12,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:12,870 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2021-11-19 14:17:12,870 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:12,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1292262399] [2021-11-19 14:17:12,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1292262399] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:17:12,871 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:17:12,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2021-11-19 14:17:12,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277081812] [2021-11-19 14:17:12,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:12,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:17:12,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:12,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:17:12,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:17:12,873 INFO L87 Difference]: Start difference. First operand 321 states and 442 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2021-11-19 14:17:13,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:13,769 INFO L93 Difference]: Finished difference Result 615 states and 863 transitions. [2021-11-19 14:17:13,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:17:13,771 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 164 [2021-11-19 14:17:13,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:13,779 INFO L225 Difference]: With dead ends: 615 [2021-11-19 14:17:13,779 INFO L226 Difference]: Without dead ends: 342 [2021-11-19 14:17:13,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 319 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 14:17:13,784 INFO L933 BasicCegarLoop]: 417 mSDtfsCounter, 83 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 2360 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:17:13,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 2360 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-19 14:17:13,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-11-19 14:17:13,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 340. [2021-11-19 14:17:13,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 208 states have (on average 1.2163461538461537) internal successors, (253), 210 states have internal predecessors, (253), 106 states have call successors, (106), 23 states have call predecessors, (106), 25 states have return successors, (120), 106 states have call predecessors, (120), 105 states have call successors, (120) [2021-11-19 14:17:13,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 479 transitions. [2021-11-19 14:17:13,817 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 479 transitions. Word has length 164 [2021-11-19 14:17:13,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:13,818 INFO L470 AbstractCegarLoop]: Abstraction has 340 states and 479 transitions. [2021-11-19 14:17:13,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2021-11-19 14:17:13,819 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 479 transitions. [2021-11-19 14:17:13,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-11-19 14:17:13,823 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:13,823 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:17:13,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:17:14,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:14,046 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:17:14,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:14,046 INFO L85 PathProgramCache]: Analyzing trace with hash 2064550921, now seen corresponding path program 1 times [2021-11-19 14:17:14,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:14,048 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [368938261] [2021-11-19 14:17:14,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:14,049 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:14,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:14,053 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:14,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:17:15,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:15,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 1539 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:17:15,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:15,637 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-19 14:17:15,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:16,331 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-19 14:17:16,331 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:16,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [368938261] [2021-11-19 14:17:16,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [368938261] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:17:16,332 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:17:16,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2021-11-19 14:17:16,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381120266] [2021-11-19 14:17:16,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:16,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:17:16,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:16,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:17:16,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:17:16,335 INFO L87 Difference]: Start difference. First operand 340 states and 479 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2021-11-19 14:17:16,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:16,976 INFO L93 Difference]: Finished difference Result 640 states and 912 transitions. [2021-11-19 14:17:16,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:17:16,977 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 179 [2021-11-19 14:17:16,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:16,982 INFO L225 Difference]: With dead ends: 640 [2021-11-19 14:17:16,982 INFO L226 Difference]: Without dead ends: 348 [2021-11-19 14:17:16,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:17:16,986 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 70 mSDsluCounter, 1539 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 1949 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:17:16,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 1949 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 14:17:16,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2021-11-19 14:17:17,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 340. [2021-11-19 14:17:17,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 208 states have (on average 1.2163461538461537) internal successors, (253), 210 states have internal predecessors, (253), 106 states have call successors, (106), 23 states have call predecessors, (106), 25 states have return successors, (120), 106 states have call predecessors, (120), 105 states have call successors, (120) [2021-11-19 14:17:17,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 479 transitions. [2021-11-19 14:17:17,015 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 479 transitions. Word has length 179 [2021-11-19 14:17:17,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:17,016 INFO L470 AbstractCegarLoop]: Abstraction has 340 states and 479 transitions. [2021-11-19 14:17:17,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2021-11-19 14:17:17,016 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 479 transitions. [2021-11-19 14:17:17,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-11-19 14:17:17,020 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:17,020 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 7, 7, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:17:17,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:17:17,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:17,245 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:17:17,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:17,246 INFO L85 PathProgramCache]: Analyzing trace with hash 587208436, now seen corresponding path program 1 times [2021-11-19 14:17:17,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:17,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1014478405] [2021-11-19 14:17:17,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:17,250 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:17,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:17,251 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:17,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:17:18,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:18,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 1587 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:17:18,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:19,019 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2021-11-19 14:17:19,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:19,835 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2021-11-19 14:17:19,835 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:19,835 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1014478405] [2021-11-19 14:17:19,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1014478405] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:17:19,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:17:19,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 11 [2021-11-19 14:17:19,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292470694] [2021-11-19 14:17:19,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:19,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:17:19,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:19,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:17:19,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:17:19,838 INFO L87 Difference]: Start difference. First operand 340 states and 479 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2021-11-19 14:17:21,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:21,257 INFO L93 Difference]: Finished difference Result 662 states and 941 transitions. [2021-11-19 14:17:21,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 14:17:21,258 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) Word has length 195 [2021-11-19 14:17:21,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:21,262 INFO L225 Difference]: With dead ends: 662 [2021-11-19 14:17:21,262 INFO L226 Difference]: Without dead ends: 370 [2021-11-19 14:17:21,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2021-11-19 14:17:21,265 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 142 mSDsluCounter, 2266 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 2667 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:17:21,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 2667 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-19 14:17:21,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2021-11-19 14:17:21,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 352. [2021-11-19 14:17:21,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 218 states have (on average 1.224770642201835) internal successors, (267), 220 states have internal predecessors, (267), 107 states have call successors, (107), 24 states have call predecessors, (107), 26 states have return successors, (121), 107 states have call predecessors, (121), 106 states have call successors, (121) [2021-11-19 14:17:21,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 495 transitions. [2021-11-19 14:17:21,298 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 495 transitions. Word has length 195 [2021-11-19 14:17:21,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:21,299 INFO L470 AbstractCegarLoop]: Abstraction has 352 states and 495 transitions. [2021-11-19 14:17:21,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2021-11-19 14:17:21,300 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 495 transitions. [2021-11-19 14:17:21,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-19 14:17:21,304 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:21,305 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:17:21,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:17:21,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:21,520 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:17:21,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:21,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1829094874, now seen corresponding path program 2 times [2021-11-19 14:17:21,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:21,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2000730866] [2021-11-19 14:17:21,523 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 14:17:21,523 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:21,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:21,524 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:21,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:17:31,082 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 14:17:31,083 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:17:31,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 1667 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 14:17:31,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:32,265 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2021-11-19 14:17:32,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:33,068 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-11-19 14:17:33,068 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:33,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2000730866] [2021-11-19 14:17:33,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2000730866] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:17:33,069 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:17:33,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2021-11-19 14:17:33,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667545502] [2021-11-19 14:17:33,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:33,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:17:33,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:33,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:17:33,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:17:33,071 INFO L87 Difference]: Start difference. First operand 352 states and 495 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 14:17:35,159 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:17:37,167 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:17:39,181 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:17:42,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:42,474 INFO L93 Difference]: Finished difference Result 692 states and 993 transitions. [2021-11-19 14:17:42,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 14:17:42,490 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 210 [2021-11-19 14:17:42,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:42,495 INFO L225 Difference]: With dead ends: 692 [2021-11-19 14:17:42,495 INFO L226 Difference]: Without dead ends: 388 [2021-11-19 14:17:42,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:17:42,498 INFO L933 BasicCegarLoop]: 437 mSDtfsCounter, 21 mSDsluCounter, 1579 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2016 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:17:42,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 2016 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 203 Invalid, 3 Unknown, 0 Unchecked, 9.0s Time] [2021-11-19 14:17:42,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2021-11-19 14:17:42,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 360. [2021-11-19 14:17:42,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 226 states have (on average 1.2256637168141593) internal successors, (277), 228 states have internal predecessors, (277), 107 states have call successors, (107), 24 states have call predecessors, (107), 26 states have return successors, (121), 107 states have call predecessors, (121), 106 states have call successors, (121) [2021-11-19 14:17:42,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 505 transitions. [2021-11-19 14:17:42,522 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 505 transitions. Word has length 210 [2021-11-19 14:17:42,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:42,523 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 505 transitions. [2021-11-19 14:17:42,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 14:17:42,524 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 505 transitions. [2021-11-19 14:17:42,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-19 14:17:42,527 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:42,527 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:17:42,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:17:42,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:42,742 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:17:42,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:42,742 INFO L85 PathProgramCache]: Analyzing trace with hash -731767972, now seen corresponding path program 1 times [2021-11-19 14:17:42,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:42,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [250517002] [2021-11-19 14:17:42,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:42,744 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:42,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:42,745 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:42,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:17:43,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:44,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 1665 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:17:44,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:45,127 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2021-11-19 14:17:45,127 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:45,994 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-11-19 14:17:45,994 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:45,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [250517002] [2021-11-19 14:17:45,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [250517002] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:17:45,995 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:17:45,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2021-11-19 14:17:45,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590536105] [2021-11-19 14:17:45,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:45,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:17:45,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:45,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:17:45,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:17:45,998 INFO L87 Difference]: Start difference. First operand 360 states and 505 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 14:17:48,130 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:17:50,136 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:17:52,143 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:17:55,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:55,858 INFO L93 Difference]: Finished difference Result 702 states and 1003 transitions. [2021-11-19 14:17:55,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 14:17:55,861 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 210 [2021-11-19 14:17:55,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:55,864 INFO L225 Difference]: With dead ends: 702 [2021-11-19 14:17:55,865 INFO L226 Difference]: Without dead ends: 390 [2021-11-19 14:17:55,867 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-11-19 14:17:55,868 INFO L933 BasicCegarLoop]: 437 mSDtfsCounter, 17 mSDsluCounter, 2011 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 2448 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:17:55,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 2448 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 220 Invalid, 3 Unknown, 0 Unchecked, 9.3s Time] [2021-11-19 14:17:55,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2021-11-19 14:17:55,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 364. [2021-11-19 14:17:55,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 230 states have (on average 1.2217391304347827) internal successors, (281), 232 states have internal predecessors, (281), 107 states have call successors, (107), 24 states have call predecessors, (107), 26 states have return successors, (121), 107 states have call predecessors, (121), 106 states have call successors, (121) [2021-11-19 14:17:55,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 509 transitions. [2021-11-19 14:17:55,892 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 509 transitions. Word has length 210 [2021-11-19 14:17:55,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:55,893 INFO L470 AbstractCegarLoop]: Abstraction has 364 states and 509 transitions. [2021-11-19 14:17:55,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 14:17:55,893 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 509 transitions. [2021-11-19 14:17:55,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-19 14:17:55,897 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:55,897 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:17:55,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 14:17:56,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:56,125 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:17:56,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:56,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1652156766, now seen corresponding path program 1 times [2021-11-19 14:17:56,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:56,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1514456487] [2021-11-19 14:17:56,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:56,127 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:56,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:56,128 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:56,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 14:17:57,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:57,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 14:17:57,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:18:17,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2021-11-19 14:18:17,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-19 14:18:17,384 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-11-19 14:18:17,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:18:23,367 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:18:23,368 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 40 treesize of output 43 [2021-11-19 14:18:23,399 INFO L354 Elim1Store]: treesize reduction 8, result has 46.7 percent of original size [2021-11-19 14:18:23,400 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 39 treesize of output 34 [2021-11-19 14:18:23,760 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2021-11-19 14:18:23,760 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:18:23,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1514456487] [2021-11-19 14:18:23,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1514456487] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:18:23,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:18:23,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 13 [2021-11-19 14:18:23,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656430828] [2021-11-19 14:18:23,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:18:23,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-19 14:18:23,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:18:23,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-19 14:18:23,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=124, Unknown=2, NotChecked=0, Total=156 [2021-11-19 14:18:23,762 INFO L87 Difference]: Start difference. First operand 364 states and 509 transitions. Second operand has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 5 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2021-11-19 14:18:25,847 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:18:27,856 WARN L515 Checker$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 14:18:29,863 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:18:31,869 WARN L515 Checker$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 14:18:37,862 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:18:39,866 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:18:41,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:18:41,582 INFO L93 Difference]: Finished difference Result 709 states and 1005 transitions. [2021-11-19 14:18:41,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-19 14:18:41,584 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 5 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) Word has length 210 [2021-11-19 14:18:41,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:18:41,588 INFO L225 Difference]: With dead ends: 709 [2021-11-19 14:18:41,588 INFO L226 Difference]: Without dead ends: 424 [2021-11-19 14:18:41,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 403 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 24.7s TimeCoverageRelationStatistics Valid=83, Invalid=294, Unknown=3, NotChecked=0, Total=380 [2021-11-19 14:18:41,591 INFO L933 BasicCegarLoop]: 424 mSDtfsCounter, 89 mSDsluCounter, 3101 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 11 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 3525 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 71 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:18:41,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 3525 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 461 Invalid, 6 Unknown, 71 Unchecked, 14.7s Time] [2021-11-19 14:18:41,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2021-11-19 14:18:41,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 390. [2021-11-19 14:18:41,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 250 states have (on average 1.216) internal successors, (304), 252 states have internal predecessors, (304), 110 states have call successors, (110), 26 states have call predecessors, (110), 29 states have return successors, (130), 111 states have call predecessors, (130), 109 states have call successors, (130) [2021-11-19 14:18:41,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 544 transitions. [2021-11-19 14:18:41,616 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 544 transitions. Word has length 210 [2021-11-19 14:18:41,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:18:41,617 INFO L470 AbstractCegarLoop]: Abstraction has 390 states and 544 transitions. [2021-11-19 14:18:41,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 5 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2021-11-19 14:18:41,618 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 544 transitions. [2021-11-19 14:18:41,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-19 14:18:41,621 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:18:41,621 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:18:41,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 14:18:41,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:18:41,842 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:18:41,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:18:41,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1856160476, now seen corresponding path program 1 times [2021-11-19 14:18:41,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:18:41,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1318035790] [2021-11-19 14:18:41,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:18:41,845 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:18:41,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:18:41,846 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:18:41,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 14:18:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:18:43,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 1664 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:18:43,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:18:43,505 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2021-11-19 14:18:43,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:18:43,951 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-11-19 14:18:43,951 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:18:43,951 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1318035790] [2021-11-19 14:18:43,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1318035790] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:18:43,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:18:43,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-11-19 14:18:43,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889662239] [2021-11-19 14:18:43,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:18:43,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:18:43,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:18:43,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:18:43,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:18:43,954 INFO L87 Difference]: Start difference. First operand 390 states and 544 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 14:18:44,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:18:44,117 INFO L93 Difference]: Finished difference Result 738 states and 1052 transitions. [2021-11-19 14:18:44,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:18:44,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 210 [2021-11-19 14:18:44,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:18:44,122 INFO L225 Difference]: With dead ends: 738 [2021-11-19 14:18:44,123 INFO L226 Difference]: Without dead ends: 410 [2021-11-19 14:18:44,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:18:44,128 INFO L933 BasicCegarLoop]: 452 mSDtfsCounter, 8 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1782 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:18:44,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 1782 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:18:44,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2021-11-19 14:18:44,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 398. [2021-11-19 14:18:44,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 258 states have (on average 1.2131782945736433) internal successors, (313), 260 states have internal predecessors, (313), 110 states have call successors, (110), 26 states have call predecessors, (110), 29 states have return successors, (130), 111 states have call predecessors, (130), 109 states have call successors, (130) [2021-11-19 14:18:44,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 553 transitions. [2021-11-19 14:18:44,157 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 553 transitions. Word has length 210 [2021-11-19 14:18:44,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:18:44,158 INFO L470 AbstractCegarLoop]: Abstraction has 398 states and 553 transitions. [2021-11-19 14:18:44,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 14:18:44,159 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 553 transitions. [2021-11-19 14:18:44,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-11-19 14:18:44,163 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:18:44,163 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:18:44,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 14:18:44,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:18:44,384 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:18:44,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:18:44,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1292849073, now seen corresponding path program 1 times [2021-11-19 14:18:44,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:18:44,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1306746781] [2021-11-19 14:18:44,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:18:44,386 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:18:44,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:18:44,387 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:18:44,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 14:18:45,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:18:45,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 1664 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:18:45,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:18:46,126 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2021-11-19 14:18:46,126 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:18:46,718 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2021-11-19 14:18:46,718 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:18:46,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1306746781] [2021-11-19 14:18:46,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1306746781] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:18:46,719 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:18:46,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2021-11-19 14:18:46,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546605026] [2021-11-19 14:18:46,719 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:18:46,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:18:46,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:18:46,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:18:46,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:18:46,721 INFO L87 Difference]: Start difference. First operand 398 states and 553 transitions. Second operand has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 4 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (34), 3 states have call predecessors, (34), 4 states have call successors, (34) [2021-11-19 14:18:47,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:18:47,524 INFO L93 Difference]: Finished difference Result 702 states and 987 transitions. [2021-11-19 14:18:47,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:18:47,525 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 4 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (34), 3 states have call predecessors, (34), 4 states have call successors, (34) Word has length 212 [2021-11-19 14:18:47,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:18:47,529 INFO L225 Difference]: With dead ends: 702 [2021-11-19 14:18:47,529 INFO L226 Difference]: Without dead ends: 400 [2021-11-19 14:18:47,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:18:47,532 INFO L933 BasicCegarLoop]: 411 mSDtfsCounter, 82 mSDsluCounter, 2299 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 2710 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:18:47,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 2710 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-19 14:18:47,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2021-11-19 14:18:47,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2021-11-19 14:18:47,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 259 states have (on average 1.2123552123552124) internal successors, (314), 262 states have internal predecessors, (314), 110 states have call successors, (110), 26 states have call predecessors, (110), 30 states have return successors, (132), 111 states have call predecessors, (132), 109 states have call successors, (132) [2021-11-19 14:18:47,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 556 transitions. [2021-11-19 14:18:47,556 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 556 transitions. Word has length 212 [2021-11-19 14:18:47,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:18:47,557 INFO L470 AbstractCegarLoop]: Abstraction has 400 states and 556 transitions. [2021-11-19 14:18:47,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 4 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (34), 3 states have call predecessors, (34), 4 states have call successors, (34) [2021-11-19 14:18:47,557 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 556 transitions. [2021-11-19 14:18:47,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-11-19 14:18:47,559 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:18:47,560 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 7, 7, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 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 14:18:47,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 14:18:47,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:18:47,773 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:18:47,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:18:47,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1705802895, now seen corresponding path program 1 times [2021-11-19 14:18:47,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:18:47,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1040124466] [2021-11-19 14:18:47,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:18:47,777 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:18:47,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:18:47,778 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:18:47,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 14:18:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:18:49,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 1774 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:18:49,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:18:50,030 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2021-11-19 14:18:50,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:18:50,767 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2021-11-19 14:18:50,767 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:18:50,767 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1040124466] [2021-11-19 14:18:50,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1040124466] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:18:50,767 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:18:50,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 10 [2021-11-19 14:18:50,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045467844] [2021-11-19 14:18:50,768 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:18:50,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 14:18:50,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:18:50,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 14:18:50,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:18:50,769 INFO L87 Difference]: Start difference. First operand 400 states and 556 transitions. Second operand has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 6 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (36), 5 states have call predecessors, (36), 6 states have call successors, (36) [2021-11-19 14:18:51,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:18:51,707 INFO L93 Difference]: Finished difference Result 707 states and 994 transitions. [2021-11-19 14:18:51,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 14:18:51,709 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 6 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (36), 5 states have call predecessors, (36), 6 states have call successors, (36) Word has length 235 [2021-11-19 14:18:51,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:18:51,713 INFO L225 Difference]: With dead ends: 707 [2021-11-19 14:18:51,713 INFO L226 Difference]: Without dead ends: 403 [2021-11-19 14:18:51,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 463 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2021-11-19 14:18:51,716 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 131 mSDsluCounter, 2275 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 2680 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:18:51,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 2680 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-19 14:18:51,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2021-11-19 14:18:51,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 401. [2021-11-19 14:18:51,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 260 states have (on average 1.2115384615384615) internal successors, (315), 263 states have internal predecessors, (315), 110 states have call successors, (110), 26 states have call predecessors, (110), 30 states have return successors, (132), 111 states have call predecessors, (132), 109 states have call successors, (132) [2021-11-19 14:18:51,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 557 transitions. [2021-11-19 14:18:51,763 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 557 transitions. Word has length 235 [2021-11-19 14:18:51,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:18:51,763 INFO L470 AbstractCegarLoop]: Abstraction has 401 states and 557 transitions. [2021-11-19 14:18:51,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 6 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (36), 5 states have call predecessors, (36), 6 states have call successors, (36) [2021-11-19 14:18:51,764 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 557 transitions. [2021-11-19 14:18:51,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-11-19 14:18:51,766 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:18:51,767 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 7, 7, 6, 6, 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, 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] [2021-11-19 14:18:51,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-19 14:18:51,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:18:51,981 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:18:51,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:18:51,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1402500186, now seen corresponding path program 1 times [2021-11-19 14:18:51,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:18:51,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [737113050] [2021-11-19 14:18:51,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:18:51,985 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:18:51,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:18:51,986 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:18:52,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-19 14:18:53,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:18:53,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 1737 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:18:53,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:18:54,032 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 137 proven. 3 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2021-11-19 14:18:54,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:18:54,874 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2021-11-19 14:18:54,875 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:18:54,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [737113050] [2021-11-19 14:18:54,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [737113050] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:18:54,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1778802652] [2021-11-19 14:18:54,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:18:54,875 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:18:54,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:18:54,877 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:18:54,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-11-19 14:18:55,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:18:55,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 1737 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:18:55,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:18:56,245 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 137 proven. 3 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2021-11-19 14:18:56,245 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:18:57,044 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2021-11-19 14:18:57,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1778802652] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:18:57,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006943132] [2021-11-19 14:18:57,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:18:57,045 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:18:57,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:18:57,047 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:18:57,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-19 14:18:57,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:18:58,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 1737 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:18:58,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:18:58,557 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 137 proven. 3 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2021-11-19 14:18:58,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:18:59,400 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2021-11-19 14:18:59,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006943132] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:18:59,400 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 14:18:59,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 9, 9] total 11 [2021-11-19 14:18:59,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709438018] [2021-11-19 14:18:59,401 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 14:18:59,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-19 14:18:59,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:18:59,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-19 14:18:59,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:18:59,403 INFO L87 Difference]: Start difference. First operand 401 states and 557 transitions. Second operand has 11 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 7 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (37), 4 states have call predecessors, (37), 7 states have call successors, (37) [2021-11-19 14:19:00,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:19:00,645 INFO L93 Difference]: Finished difference Result 739 states and 1036 transitions. [2021-11-19 14:19:00,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 14:19:00,646 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 7 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (37), 4 states have call predecessors, (37), 7 states have call successors, (37) Word has length 236 [2021-11-19 14:19:00,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:19:00,651 INFO L225 Difference]: With dead ends: 739 [2021-11-19 14:19:00,651 INFO L226 Difference]: Without dead ends: 434 [2021-11-19 14:19:00,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1414 GetRequests, 1402 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-11-19 14:19:00,654 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 182 mSDsluCounter, 1859 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 2254 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:19:00,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 2254 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-19 14:19:00,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2021-11-19 14:19:00,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 428. [2021-11-19 14:19:00,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 286 states have (on average 1.2202797202797202) internal successors, (349), 288 states have internal predecessors, (349), 111 states have call successors, (111), 26 states have call predecessors, (111), 30 states have return successors, (133), 113 states have call predecessors, (133), 110 states have call successors, (133) [2021-11-19 14:19:00,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 593 transitions. [2021-11-19 14:19:00,680 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 593 transitions. Word has length 236 [2021-11-19 14:19:00,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:19:00,682 INFO L470 AbstractCegarLoop]: Abstraction has 428 states and 593 transitions. [2021-11-19 14:19:00,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 7 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (37), 4 states have call predecessors, (37), 7 states have call successors, (37) [2021-11-19 14:19:00,683 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 593 transitions. [2021-11-19 14:19:00,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2021-11-19 14:19:00,685 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:19:00,685 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2021-11-19 14:19:00,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2021-11-19 14:19:00,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-19 14:19:01,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2021-11-19 14:19:01,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:19:01,296 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:19:01,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:19:01,297 INFO L85 PathProgramCache]: Analyzing trace with hash -556391816, now seen corresponding path program 2 times [2021-11-19 14:19:01,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:19:01,299 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [190055277] [2021-11-19 14:19:01,299 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 14:19:01,299 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:19:01,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:19:01,301 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:19:01,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-19 14:19:08,058 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 14:19:08,058 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:19:08,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 1897 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:19:08,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:19:08,898 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-11-19 14:19:08,898 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:19:09,639 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-11-19 14:19:09,639 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:19:09,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [190055277] [2021-11-19 14:19:09,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [190055277] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:19:09,639 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:19:09,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 10 [2021-11-19 14:19:09,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053892756] [2021-11-19 14:19:09,640 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:19:09,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 14:19:09,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:19:09,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 14:19:09,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:19:09,641 INFO L87 Difference]: Start difference. First operand 428 states and 593 transitions. Second operand has 10 states, 10 states have (on average 8.2) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 5 states have call predecessors, (28), 4 states have call successors, (28) [2021-11-19 14:19:10,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:19:10,942 INFO L93 Difference]: Finished difference Result 767 states and 1074 transitions. [2021-11-19 14:19:10,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 14:19:10,943 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 5 states have call predecessors, (28), 4 states have call successors, (28) Word has length 266 [2021-11-19 14:19:10,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:19:10,947 INFO L225 Difference]: With dead ends: 767 [2021-11-19 14:19:10,948 INFO L226 Difference]: Without dead ends: 440 [2021-11-19 14:19:10,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 533 GetRequests, 522 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-11-19 14:19:10,951 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 79 mSDsluCounter, 3063 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 3465 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:19:10,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 3465 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-19 14:19:10,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2021-11-19 14:19:10,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 440. [2021-11-19 14:19:10,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 292 states have (on average 1.2191780821917808) internal successors, (356), 294 states have internal predecessors, (356), 116 states have call successors, (116), 27 states have call predecessors, (116), 31 states have return successors, (138), 118 states have call predecessors, (138), 115 states have call successors, (138) [2021-11-19 14:19:10,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 610 transitions. [2021-11-19 14:19:10,976 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 610 transitions. Word has length 266 [2021-11-19 14:19:10,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:19:10,977 INFO L470 AbstractCegarLoop]: Abstraction has 440 states and 610 transitions. [2021-11-19 14:19:10,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 5 states have call predecessors, (28), 4 states have call successors, (28) [2021-11-19 14:19:10,977 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 610 transitions. [2021-11-19 14:19:10,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-11-19 14:19:10,980 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:19:10,980 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2021-11-19 14:19:11,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-19 14:19:11,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:19:11,193 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:19:11,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:19:11,194 INFO L85 PathProgramCache]: Analyzing trace with hash 454522368, now seen corresponding path program 3 times [2021-11-19 14:19:11,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:19:11,196 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1619639959] [2021-11-19 14:19:11,196 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 14:19:11,196 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:19:11,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:19:11,197 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:19:11,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d414e1fe-9b95-4be7-92d3-2c2ee9880ba3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-19 14:21:05,055 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-19 14:21:05,055 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:21:07,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 1292 conjuncts, 98 conjunts are in the unsatisfiable core [2021-11-19 14:21:07,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:21:10,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,914 INFO L244 Elim1Store]: Index analysis took 283 ms [2021-11-19 14:21:10,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:10,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:11,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:11,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:11,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:11,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:11,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:11,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:11,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:11,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:11,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:11,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:11,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:11,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:11,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:11,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:11,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:11,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:11,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:11,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:11,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:11,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:21:11,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:22:56,984 WARN L227 SmtUtils]: Spent 1.76m on a formula simplification. DAG size of input: 1046 DAG size of output: 647 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 14:22:56,994 INFO L354 Elim1Store]: treesize reduction 12856, result has 15.6 percent of original size [2021-11-19 14:22:56,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 24 select indices, 24 select index equivalence classes, 148 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 172 case distinctions, treesize of input 1141 treesize of output 2727