./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 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/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_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8 --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-47ea020 [2021-11-07 02:07:25,212 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:07:25,214 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:07:25,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:07:25,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:07:25,281 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:07:25,284 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:07:25,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:07:25,291 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:07:25,300 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:07:25,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:07:25,303 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:07:25,304 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:07:25,307 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:07:25,311 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:07:25,314 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:07:25,316 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:07:25,317 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:07:25,323 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:07:25,330 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:07:25,333 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:07:25,334 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:07:25,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:07:25,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:07:25,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:07:25,346 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:07:25,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:07:25,349 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:07:25,350 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:07:25,351 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:07:25,352 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:07:25,353 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:07:25,355 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:07:25,356 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:07:25,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:07:25,358 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:07:25,359 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:07:25,360 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:07:25,360 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:07:25,361 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:07:25,362 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:07:25,363 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 02:07:25,418 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:07:25,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:07:25,420 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:07:25,420 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:07:25,420 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:07:25,421 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:07:25,421 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:07:25,421 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:07:25,421 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:07:25,422 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:07:25,429 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:07:25,429 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:07:25,430 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:07:25,430 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:07:25,431 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:07:25,431 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:07:25,432 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:07:25,432 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:07:25,432 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:07:25,432 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:07:25,432 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:07:25,433 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:07:25,433 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:07:25,433 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:07:25,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:07:25,434 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:07:25,434 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:07:25,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:07:25,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:07:25,436 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:07:25,436 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:07:25,437 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:07:25,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:07:25,437 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:07:25,438 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:07:25,438 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:07:25,438 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_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d3eb02e894c2acef7732d0e57c112cc2c197f8f03d7c13822f169fbed4dc5e5 [2021-11-07 02:07:25,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:07:25,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:07:25,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:07:25,790 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:07:25,791 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:07:25,792 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i [2021-11-07 02:07:25,878 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/data/5b6d0699b/302d63a8fd3e420ab7e725fdb7187eb0/FLAG6cfe9d3b9 [2021-11-07 02:07:26,802 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:07:26,804 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i [2021-11-07 02:07:26,867 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/data/5b6d0699b/302d63a8fd3e420ab7e725fdb7187eb0/FLAG6cfe9d3b9 [2021-11-07 02:07:27,233 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/data/5b6d0699b/302d63a8fd3e420ab7e725fdb7187eb0 [2021-11-07 02:07:27,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:07:27,237 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:07:27,241 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:07:27,241 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:07:27,245 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:07:27,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:07:27" (1/1) ... [2021-11-07 02:07:27,248 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7464fb36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:27, skipping insertion in model container [2021-11-07 02:07:27,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:07:27" (1/1) ... [2021-11-07 02:07:27,258 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:07:27,393 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:07:27,733 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4504,4517] [2021-11-07 02:07:27,743 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4564,4577] [2021-11-07 02:07:27,773 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:07:27,782 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:07:28,807 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:28,812 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:28,813 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:28,814 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:28,819 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:28,847 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:28,848 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:28,862 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:28,863 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:28,867 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:28,868 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:28,869 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:28,870 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:29,355 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:07:29,356 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:07:29,358 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:07:29,359 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:07:29,367 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:07:29,368 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:07:29,370 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:07:29,371 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:07:29,387 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:07:29,388 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:07:29,585 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:07:29,613 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:29,613 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:29,620 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:29,627 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:29,760 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:29,774 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:29,775 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:29,775 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:29,776 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:29,776 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:29,777 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:29,778 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:29,778 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:29,779 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:29,779 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:29,779 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:29,780 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:29,784 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:29,784 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:29,785 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:29,785 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:29,807 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:29,814 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:29,823 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:29,830 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:29,832 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:29,854 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:07:29,893 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) [2021-11-07 02:07:29,894 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5e2af0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:29, skipping insertion in model container [2021-11-07 02:07:29,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:07:29,895 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:07:29,897 INFO L168 Benchmark]: Toolchain (without parser) took 2659.05 ms. Allocated memory is still 100.7 MB. Free memory was 56.4 MB in the beginning and 62.0 MB in the end (delta: -5.6 MB). Peak memory consumption was 25.7 MB. Max. memory is 16.1 GB. [2021-11-07 02:07:29,899 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 100.7 MB. Free memory is still 81.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:07:29,900 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2654.12 ms. Allocated memory is still 100.7 MB. Free memory was 56.2 MB in the beginning and 62.0 MB in the end (delta: -5.8 MB). Peak memory consumption was 25.7 MB. Max. memory is 16.1 GB. [2021-11-07 02:07:29,902 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 100.7 MB. Free memory is still 81.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2654.12 ms. Allocated memory is still 100.7 MB. Free memory was 56.2 MB in the beginning and 62.0 MB in the end (delta: -5.8 MB). Peak memory consumption was 25.7 MB. Max. memory is 16.1 GB. * 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_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/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_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8 --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-47ea020 [2021-11-07 02:07:32,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:07:32,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:07:32,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:07:32,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:07:32,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:07:32,460 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:07:32,462 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:07:32,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:07:32,466 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:07:32,467 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:07:32,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:07:32,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:07:32,471 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:07:32,473 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:07:32,474 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:07:32,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:07:32,477 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:07:32,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:07:32,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:07:32,484 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:07:32,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:07:32,488 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:07:32,489 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:07:32,493 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:07:32,494 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:07:32,494 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:07:32,495 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:07:32,496 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:07:32,497 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:07:32,498 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:07:32,499 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:07:32,500 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:07:32,501 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:07:32,502 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:07:32,503 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:07:32,504 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:07:32,504 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:07:32,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:07:32,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:07:32,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:07:32,508 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 02:07:32,537 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:07:32,537 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:07:32,538 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:07:32,539 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:07:32,539 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:07:32,539 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:07:32,540 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:07:32,540 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:07:32,540 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:07:32,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:07:32,541 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:07:32,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:07:32,542 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:07:32,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:07:32,542 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:07:32,543 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:07:32,543 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:07:32,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:07:32,544 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:07:32,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:07:32,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:07:32,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:07:32,545 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:07:32,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:07:32,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:07:32,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:07:32,546 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:07:32,546 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:07:32,546 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:07:32,547 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:07:32,547 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:07:32,547 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:07:32,548 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_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d3eb02e894c2acef7732d0e57c112cc2c197f8f03d7c13822f169fbed4dc5e5 [2021-11-07 02:07:32,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:07:32,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:07:33,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:07:33,005 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:07:33,006 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:07:33,008 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i [2021-11-07 02:07:33,092 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/data/669172b6d/ca4d6059f60a4317809767ee2f0d04f6/FLAG5a0e93c01 [2021-11-07 02:07:34,256 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:07:34,259 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i [2021-11-07 02:07:34,304 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/data/669172b6d/ca4d6059f60a4317809767ee2f0d04f6/FLAG5a0e93c01 [2021-11-07 02:07:34,625 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/data/669172b6d/ca4d6059f60a4317809767ee2f0d04f6 [2021-11-07 02:07:34,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:07:34,631 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:07:34,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:07:34,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:07:34,637 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:07:34,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:07:34" (1/1) ... [2021-11-07 02:07:34,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59290734 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:34, skipping insertion in model container [2021-11-07 02:07:34,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:07:34" (1/1) ... [2021-11-07 02:07:34,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:07:34,774 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:07:35,119 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4504,4517] [2021-11-07 02:07:35,128 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4564,4577] [2021-11-07 02:07:35,167 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:07:35,185 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:07:36,849 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:36,851 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:36,852 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:36,854 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:36,856 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:36,879 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:36,880 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:36,882 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:36,882 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:36,885 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:36,886 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:36,887 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:36,887 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,393 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:07:37,394 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:07:37,395 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:07:37,396 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:07:37,398 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:07:37,399 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:07:37,399 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:07:37,400 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:07:37,401 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:07:37,401 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:07:37,566 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:07:37,625 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,626 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,634 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,642 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,738 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,739 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,740 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,740 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,740 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,741 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,741 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,742 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,743 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,743 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,743 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,744 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,744 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,747 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,748 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,749 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,749 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,753 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,754 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,762 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,764 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,764 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:07:37,816 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:07:37,885 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:07:37,889 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4504,4517] [2021-11-07 02:07:37,889 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4564,4577] [2021-11-07 02:07:37,891 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:07:37,891 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:07:37,925 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,926 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,926 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,927 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,928 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,934 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,935 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,936 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,936 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,937 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,938 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,939 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,939 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:37,973 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:07:37,974 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:07:37,975 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:07:37,976 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:07:37,977 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:07:37,978 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:07:37,978 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:07:37,979 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:07:37,979 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:07:37,980 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:07:38,002 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:07:38,017 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,017 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,018 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,023 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,078 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,079 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,079 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,080 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,080 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,080 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,081 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,081 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,082 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,082 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,082 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,083 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,083 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,084 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,084 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,084 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,085 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,087 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,088 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,093 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,094 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,095 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:07:38,117 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:07:38,136 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4504,4517] [2021-11-07 02:07:38,142 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4564,4577] [2021-11-07 02:07:38,143 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:07:38,144 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:07:38,185 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,185 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,185 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,186 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,186 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,191 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,192 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,193 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,193 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,194 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,194 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,195 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,195 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,225 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:07:38,226 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:07:38,226 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:07:38,227 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:07:38,228 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:07:38,228 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:07:38,229 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:07:38,229 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:07:38,230 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:07:38,230 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:07:38,274 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:07:38,290 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,291 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,292 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,297 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,321 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,321 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,322 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,322 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,323 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,323 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,324 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,324 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,325 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,325 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,325 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,326 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,326 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,327 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,328 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,328 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,328 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,331 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,332 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,338 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,345 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,346 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:38,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:07:38,672 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:07:38,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:38 WrapperNode [2021-11-07 02:07:38,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:07:38,675 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:07:38,675 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:07:38,675 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:07:38,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:38" (1/1) ... [2021-11-07 02:07:38,861 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:38" (1/1) ... [2021-11-07 02:07:39,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:07:39,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:07:39,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:07:39,125 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:07:39,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:38" (1/1) ... [2021-11-07 02:07:39,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:38" (1/1) ... [2021-11-07 02:07:39,155 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:38" (1/1) ... [2021-11-07 02:07:39,156 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:38" (1/1) ... [2021-11-07 02:07:39,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:38" (1/1) ... [2021-11-07 02:07:39,369 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:38" (1/1) ... [2021-11-07 02:07:39,402 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:38" (1/1) ... [2021-11-07 02:07:39,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:07:39,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:07:39,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:07:39,439 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:07:39,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:38" (1/1) ... [2021-11-07 02:07:39,447 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:07:39,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:07:39,472 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:07:39,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:07:39,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:07:39,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:07:39,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 02:07:39,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 02:07:39,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 02:07:39,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 02:07:39,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:07:39,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:07:39,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 02:07:39,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 02:07:39,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:07:39,530 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-07 02:07:39,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 02:07:39,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 02:07:39,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 02:07:39,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 02:08:08,768 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:08:08,769 INFO L299 CfgBuilder]: Removed 924 assume(true) statements. [2021-11-07 02:08:08,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:08:08 BoogieIcfgContainer [2021-11-07 02:08:08,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:08:08,776 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:08:08,776 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:08:08,780 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:08:08,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:07:34" (1/3) ... [2021-11-07 02:08:08,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c8df79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:08:08, skipping insertion in model container [2021-11-07 02:08:08,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:38" (2/3) ... [2021-11-07 02:08:08,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c8df79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:08:08, skipping insertion in model container [2021-11-07 02:08:08,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:08:08" (3/3) ... [2021-11-07 02:08:08,783 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_down_harness.i [2021-11-07 02:08:08,790 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:08:08,790 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2021-11-07 02:08:08,849 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:08:08,855 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 [2021-11-07 02:08:08,862 INFO L340 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2021-11-07 02:08:08,913 INFO L276 IsEmpty]: Start isEmpty. Operand has 1139 states, 1108 states have (on average 1.4214801444043321) internal successors, (1575), 1138 states have internal predecessors, (1575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:08:08,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-07 02:08:08,921 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:08:08,922 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:08:08,923 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-07 02:08:08,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:08:08,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1715157979, now seen corresponding path program 1 times [2021-11-07 02:08:08,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:08:08,948 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [568057503] [2021-11-07 02:08:08,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:08:08,949 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:08:08,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:08:08,953 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:08:08,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:08:13,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:08:13,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 1615 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 02:08:13,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:08:13,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:08:13,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:08:13,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:08:13,631 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:08:13,632 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [568057503] [2021-11-07 02:08:13,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [568057503] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:08:13,632 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:08:13,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 02:08:13,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638897197] [2021-11-07 02:08:13,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 02:08:13,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:08:13,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 02:08:13,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:08:13,656 INFO L87 Difference]: Start difference. First operand has 1139 states, 1108 states have (on average 1.4214801444043321) internal successors, (1575), 1138 states have internal predecessors, (1575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:08:13,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:08:13,776 INFO L93 Difference]: Finished difference Result 2266 states and 3137 transitions. [2021-11-07 02:08:13,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 02:08:13,778 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-11-07 02:08:13,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:08:13,805 INFO L225 Difference]: With dead ends: 2266 [2021-11-07 02:08:13,805 INFO L226 Difference]: Without dead ends: 1134 [2021-11-07 02:08:13,814 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:08:13,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1134 states. [2021-11-07 02:08:13,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1134 to 1134. [2021-11-07 02:08:13,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1134 states, 1104 states have (on average 1.3206521739130435) internal successors, (1458), 1133 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:08:13,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1458 transitions. [2021-11-07 02:08:13,974 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1458 transitions. Word has length 53 [2021-11-07 02:08:13,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:08:13,974 INFO L470 AbstractCegarLoop]: Abstraction has 1134 states and 1458 transitions. [2021-11-07 02:08:13,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:08:13,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1458 transitions. [2021-11-07 02:08:13,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-07 02:08:13,987 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:08:13,992 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:08:14,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:08:14,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:08:14,194 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-07 02:08:14,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:08:14,195 INFO L85 PathProgramCache]: Analyzing trace with hash -799846195, now seen corresponding path program 1 times [2021-11-07 02:08:14,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:08:14,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [399456869] [2021-11-07 02:08:14,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:08:14,199 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:08:14,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:08:14,213 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:08:14,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:08:18,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:08:18,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 1615 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:08:18,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:08:18,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:08:18,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:08:18,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:08:18,759 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:08:18,759 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [399456869] [2021-11-07 02:08:18,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [399456869] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:08:18,760 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:08:18,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 02:08:18,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417764091] [2021-11-07 02:08:18,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:08:18,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:08:18,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:08:18,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:08:18,763 INFO L87 Difference]: Start difference. First operand 1134 states and 1458 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:08:18,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:08:18,945 INFO L93 Difference]: Finished difference Result 2248 states and 2895 transitions. [2021-11-07 02:08:18,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:08:18,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-11-07 02:08:18,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:08:18,953 INFO L225 Difference]: With dead ends: 2248 [2021-11-07 02:08:18,954 INFO L226 Difference]: Without dead ends: 1136 [2021-11-07 02:08:18,956 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:08:18,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2021-11-07 02:08:18,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 1136. [2021-11-07 02:08:18,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 1106 states have (on average 1.3200723327305606) internal successors, (1460), 1135 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:08:18,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1460 transitions. [2021-11-07 02:08:18,992 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1460 transitions. Word has length 53 [2021-11-07 02:08:18,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:08:18,993 INFO L470 AbstractCegarLoop]: Abstraction has 1136 states and 1460 transitions. [2021-11-07 02:08:18,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:08:18,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1460 transitions. [2021-11-07 02:08:18,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-07 02:08:18,995 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:08:18,995 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:08:19,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:08:19,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:08:19,196 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-07 02:08:19,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:08:19,197 INFO L85 PathProgramCache]: Analyzing trace with hash 571961103, now seen corresponding path program 1 times [2021-11-07 02:08:19,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:08:19,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1480844235] [2021-11-07 02:08:19,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:08:19,201 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:08:19,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:08:19,202 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:08:19,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:08:23,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:08:23,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 1617 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:08:23,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:08:23,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:08:23,587 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:08:23,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:08:23,857 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:08:23,857 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1480844235] [2021-11-07 02:08:23,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1480844235] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:08:23,858 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:08:23,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 02:08:23,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283689724] [2021-11-07 02:08:23,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:08:23,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:08:23,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:08:23,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:08:23,860 INFO L87 Difference]: Start difference. First operand 1136 states and 1460 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:08:24,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:08:24,233 INFO L93 Difference]: Finished difference Result 2503 states and 3212 transitions. [2021-11-07 02:08:24,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:08:24,234 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-11-07 02:08:24,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:08:24,242 INFO L225 Difference]: With dead ends: 2503 [2021-11-07 02:08:24,243 INFO L226 Difference]: Without dead ends: 1455 [2021-11-07 02:08:24,245 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:08:24,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2021-11-07 02:08:24,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1136. [2021-11-07 02:08:24,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 1106 states have (on average 1.317359855334539) internal successors, (1457), 1135 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:08:24,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1457 transitions. [2021-11-07 02:08:24,290 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1457 transitions. Word has length 53 [2021-11-07 02:08:24,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:08:24,290 INFO L470 AbstractCegarLoop]: Abstraction has 1136 states and 1457 transitions. [2021-11-07 02:08:24,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:08:24,291 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1457 transitions. [2021-11-07 02:08:24,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-07 02:08:24,292 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:08:24,293 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:08:24,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:08:24,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:08:24,514 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-07 02:08:24,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:08:24,515 INFO L85 PathProgramCache]: Analyzing trace with hash 834729775, now seen corresponding path program 1 times [2021-11-07 02:08:24,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:08:24,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1236166140] [2021-11-07 02:08:24,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:08:24,518 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:08:24,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:08:24,519 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:08:24,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:08:28,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:08:28,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 1649 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 02:08:28,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:08:28,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:08:28,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:08:29,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:08:29,265 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:08:29,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1236166140] [2021-11-07 02:08:29,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1236166140] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:08:29,265 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:08:29,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 02:08:29,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472898393] [2021-11-07 02:08:29,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 02:08:29,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:08:29,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 02:08:29,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:08:29,268 INFO L87 Difference]: Start difference. First operand 1136 states and 1457 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:08:33,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:08:33,970 INFO L93 Difference]: Finished difference Result 3003 states and 3828 transitions. [2021-11-07 02:08:33,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:08:33,971 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-11-07 02:08:33,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:08:33,982 INFO L225 Difference]: With dead ends: 3003 [2021-11-07 02:08:33,982 INFO L226 Difference]: Without dead ends: 1923 [2021-11-07 02:08:33,984 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-07 02:08:33,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1923 states. [2021-11-07 02:08:34,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1923 to 1136. [2021-11-07 02:08:34,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 1106 states have (on average 1.3146473779385173) internal successors, (1454), 1135 states have internal predecessors, (1454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:08:34,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1454 transitions. [2021-11-07 02:08:34,043 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1454 transitions. Word has length 61 [2021-11-07 02:08:34,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:08:34,044 INFO L470 AbstractCegarLoop]: Abstraction has 1136 states and 1454 transitions. [2021-11-07 02:08:34,044 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:08:34,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1454 transitions. [2021-11-07 02:08:34,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-07 02:08:34,045 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:08:34,046 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:08:34,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 02:08:34,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:08:34,270 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-07 02:08:34,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:08:34,271 INFO L85 PathProgramCache]: Analyzing trace with hash -2045544657, now seen corresponding path program 1 times [2021-11-07 02:08:34,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:08:34,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1688724060] [2021-11-07 02:08:34,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:08:34,274 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:08:34,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:08:34,275 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:08:34,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 02:08:38,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:08:38,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 1767 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 02:08:38,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:08:39,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:08:39,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:08:39,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:08:39,694 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:08:39,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1688724060] [2021-11-07 02:08:39,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1688724060] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:08:39,695 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:08:39,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 02:08:39,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254667643] [2021-11-07 02:08:39,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:08:39,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:08:39,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:08:39,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:08:39,696 INFO L87 Difference]: Start difference. First operand 1136 states and 1454 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:08:40,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:08:40,691 INFO L93 Difference]: Finished difference Result 3297 states and 4202 transitions. [2021-11-07 02:08:40,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 02:08:40,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-11-07 02:08:40,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:08:40,705 INFO L225 Difference]: With dead ends: 3297 [2021-11-07 02:08:40,705 INFO L226 Difference]: Without dead ends: 2248 [2021-11-07 02:08:40,708 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:08:40,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2248 states. [2021-11-07 02:08:40,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2248 to 1136. [2021-11-07 02:08:40,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 1106 states have (on average 1.3119349005424954) internal successors, (1451), 1135 states have internal predecessors, (1451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:08:40,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1451 transitions. [2021-11-07 02:08:40,781 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1451 transitions. Word has length 77 [2021-11-07 02:08:40,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:08:40,782 INFO L470 AbstractCegarLoop]: Abstraction has 1136 states and 1451 transitions. [2021-11-07 02:08:40,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:08:40,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1451 transitions. [2021-11-07 02:08:40,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-07 02:08:40,784 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:08:40,784 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:08:40,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 02:08:41,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:08:41,006 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-07 02:08:41,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:08:41,007 INFO L85 PathProgramCache]: Analyzing trace with hash 324665997, now seen corresponding path program 1 times [2021-11-07 02:08:41,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:08:41,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [906357214] [2021-11-07 02:08:41,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:08:41,012 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:08:41,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:08:41,013 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:08:41,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 02:08:45,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:08:45,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 1834 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 02:08:45,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:08:45,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:08:45,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:08:46,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:08:46,356 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:08:46,356 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [906357214] [2021-11-07 02:08:46,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [906357214] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:08:46,356 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:08:46,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-07 02:08:46,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030084335] [2021-11-07 02:08:46,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 02:08:46,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:08:46,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 02:08:46,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 02:08:46,358 INFO L87 Difference]: Start difference. First operand 1136 states and 1451 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:08:50,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:08:50,707 INFO L93 Difference]: Finished difference Result 3313 states and 4220 transitions. [2021-11-07 02:08:50,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 02:08:50,708 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-11-07 02:08:50,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:08:50,718 INFO L225 Difference]: With dead ends: 3313 [2021-11-07 02:08:50,719 INFO L226 Difference]: Without dead ends: 2248 [2021-11-07 02:08:50,721 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-07 02:08:50,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2248 states. [2021-11-07 02:08:50,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2248 to 1136. [2021-11-07 02:08:50,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 1106 states have (on average 1.3092224231464737) internal successors, (1448), 1135 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:08:50,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1448 transitions. [2021-11-07 02:08:50,781 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1448 transitions. Word has length 101 [2021-11-07 02:08:50,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:08:50,782 INFO L470 AbstractCegarLoop]: Abstraction has 1136 states and 1448 transitions. [2021-11-07 02:08:50,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:08:50,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1448 transitions. [2021-11-07 02:08:50,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-07 02:08:50,783 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:08:50,784 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:08:50,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-07 02:08:50,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:08:50,998 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-07 02:08:50,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:08:50,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1191929715, now seen corresponding path program 1 times [2021-11-07 02:08:51,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:08:51,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1167851704] [2021-11-07 02:08:51,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:08:51,002 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:08:51,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:08:51,003 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:08:51,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 02:08:55,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:08:55,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 1952 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 02:08:55,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:08:57,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:08:57,017 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:08:57,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:08:57,702 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:08:57,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1167851704] [2021-11-07 02:08:57,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1167851704] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:08:57,703 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:08:57,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-07 02:08:57,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051467176] [2021-11-07 02:08:57,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 02:08:57,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:08:57,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 02:08:57,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:08:57,704 INFO L87 Difference]: Start difference. First operand 1136 states and 1448 transitions. Second operand has 8 states, 8 states have (on average 15.0) internal successors, (120), 8 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:11:06,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:11:06,807 INFO L93 Difference]: Finished difference Result 3114 states and 3966 transitions. [2021-11-07 02:11:06,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 02:11:06,811 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.0) internal successors, (120), 8 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-11-07 02:11:06,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:11:06,823 INFO L225 Difference]: With dead ends: 3114 [2021-11-07 02:11:06,824 INFO L226 Difference]: Without dead ends: 2055 [2021-11-07 02:11:06,826 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-11-07 02:11:06,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2055 states. [2021-11-07 02:11:06,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2055 to 1148. [2021-11-07 02:11:06,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1148 states, 1118 states have (on average 1.3059033989266546) internal successors, (1460), 1147 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:11:06,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1148 states to 1148 states and 1460 transitions. [2021-11-07 02:11:06,908 INFO L78 Accepts]: Start accepts. Automaton has 1148 states and 1460 transitions. Word has length 117 [2021-11-07 02:11:06,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:11:06,909 INFO L470 AbstractCegarLoop]: Abstraction has 1148 states and 1460 transitions. [2021-11-07 02:11:06,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.0) internal successors, (120), 8 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:11:06,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1148 states and 1460 transitions. [2021-11-07 02:11:06,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-07 02:11:06,910 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:11:06,911 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:11:06,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 02:11:07,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:11:07,126 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-07 02:11:07,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:11:07,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1282844237, now seen corresponding path program 1 times [2021-11-07 02:11:07,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:11:07,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [198932989] [2021-11-07 02:11:07,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:11:07,130 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:11:07,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:11:07,131 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:11:07,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 02:11:12,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:11:12,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 1948 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 02:11:12,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:11:13,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:11:13,518 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:11:14,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:11:14,342 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:11:14,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [198932989] [2021-11-07 02:11:14,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [198932989] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:11:14,342 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:11:14,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-11-07 02:11:14,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603017513] [2021-11-07 02:11:14,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 02:11:14,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:11:14,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 02:11:14,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-07 02:11:14,344 INFO L87 Difference]: Start difference. First operand 1148 states and 1460 transitions. Second operand has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:13:41,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:13:41,324 INFO L93 Difference]: Finished difference Result 3128 states and 3973 transitions. [2021-11-07 02:13:41,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 02:13:41,349 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-11-07 02:13:41,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:13:41,357 INFO L225 Difference]: With dead ends: 3128 [2021-11-07 02:13:41,357 INFO L226 Difference]: Without dead ends: 2061 [2021-11-07 02:13:41,359 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-11-07 02:13:41,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2061 states. [2021-11-07 02:13:41,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2061 to 1160. [2021-11-07 02:13:41,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1160 states, 1130 states have (on average 1.3026548672566372) internal successors, (1472), 1159 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:13:41,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1472 transitions. [2021-11-07 02:13:41,435 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1472 transitions. Word has length 117 [2021-11-07 02:13:41,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:13:41,435 INFO L470 AbstractCegarLoop]: Abstraction has 1160 states and 1472 transitions. [2021-11-07 02:13:41,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:13:41,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1472 transitions. [2021-11-07 02:13:41,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-07 02:13:41,437 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:13:41,437 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:13:41,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 02:13:41,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:13:41,650 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-07 02:13:41,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:13:41,651 INFO L85 PathProgramCache]: Analyzing trace with hash 865447631, now seen corresponding path program 1 times [2021-11-07 02:13:41,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:13:41,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [195074045] [2021-11-07 02:13:41,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:13:41,654 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:13:41,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:13:41,655 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:13:41,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 02:13:46,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:13:46,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 1945 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-07 02:13:46,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:13:48,069 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 [2021-11-07 02:13:48,078 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 [2021-11-07 02:13:48,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:13:48,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:13:51,237 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:13:51,238 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 [2021-11-07 02:13:51,289 INFO L354 Elim1Store]: treesize reduction 8, result has 46.7 percent of original size [2021-11-07 02:13:51,290 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 [2021-11-07 02:13:51,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:13:51,733 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:13:51,734 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [195074045] [2021-11-07 02:13:51,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [195074045] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:13:51,734 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:13:51,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2021-11-07 02:13:51,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586847118] [2021-11-07 02:13:51,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 02:13:51,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:13:51,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 02:13:51,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-11-07 02:13:51,736 INFO L87 Difference]: Start difference. First operand 1160 states and 1472 transitions. Second operand has 11 states, 11 states have (on average 11.181818181818182) internal successors, (123), 11 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:14:12,397 WARN L207 SmtUtils]: Spent 12.17 s on a formula simplification that was a NOOP. DAG size: 33 [2021-11-07 02:14:24,763 WARN L207 SmtUtils]: Spent 12.18 s on a formula simplification that was a NOOP. DAG size: 40 [2021-11-07 02:15:22,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:15:22,216 INFO L93 Difference]: Finished difference Result 7153 states and 9043 transitions. [2021-11-07 02:15:22,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-07 02:15:22,218 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.181818181818182) internal successors, (123), 11 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-11-07 02:15:22,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:15:22,243 INFO L225 Difference]: With dead ends: 7153 [2021-11-07 02:15:22,243 INFO L226 Difference]: Without dead ends: 6102 [2021-11-07 02:15:22,246 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 26.6s TimeCoverageRelationStatistics Valid=209, Invalid=547, Unknown=0, NotChecked=0, Total=756 [2021-11-07 02:15:22,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6102 states. [2021-11-07 02:15:22,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6102 to 1169. [2021-11-07 02:15:22,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1169 states, 1139 states have (on average 1.3002633889376647) internal successors, (1481), 1168 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:15:22,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 1169 states and 1481 transitions. [2021-11-07 02:15:22,370 INFO L78 Accepts]: Start accepts. Automaton has 1169 states and 1481 transitions. Word has length 117 [2021-11-07 02:15:22,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:15:22,370 INFO L470 AbstractCegarLoop]: Abstraction has 1169 states and 1481 transitions. [2021-11-07 02:15:22,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.181818181818182) internal successors, (123), 11 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:15:22,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1169 states and 1481 transitions. [2021-11-07 02:15:22,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-07 02:15:22,372 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:15:22,372 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:15:22,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 02:15:22,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:15:22,589 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-07 02:15:22,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:15:22,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1992075728, now seen corresponding path program 1 times [2021-11-07 02:15:22,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:15:22,593 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [140364389] [2021-11-07 02:15:22,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:15:22,593 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:15:22,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:15:22,594 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:15:22,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 02:15:27,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:15:27,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 1947 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 02:15:27,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:15:28,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:15:28,788 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:15:29,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:15:29,605 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:15:29,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [140364389] [2021-11-07 02:15:29,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [140364389] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:15:29,605 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:15:29,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-07 02:15:29,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634577705] [2021-11-07 02:15:29,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 02:15:29,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:15:29,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 02:15:29,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-07 02:15:29,607 INFO L87 Difference]: Start difference. First operand 1169 states and 1481 transitions. Second operand has 10 states, 10 states have (on average 23.0) internal successors, (230), 10 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:15:33,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:15:33,627 INFO L93 Difference]: Finished difference Result 2303 states and 2928 transitions. [2021-11-07 02:15:33,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 02:15:33,628 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 23.0) internal successors, (230), 10 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-11-07 02:15:33,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:15:33,633 INFO L225 Difference]: With dead ends: 2303 [2021-11-07 02:15:33,633 INFO L226 Difference]: Without dead ends: 1325 [2021-11-07 02:15:33,635 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2021-11-07 02:15:33,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2021-11-07 02:15:33,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 1169. [2021-11-07 02:15:33,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1169 states, 1139 states have (on average 1.295873573309921) internal successors, (1476), 1168 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:15:33,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 1169 states and 1476 transitions. [2021-11-07 02:15:33,732 INFO L78 Accepts]: Start accepts. Automaton has 1169 states and 1476 transitions. Word has length 119 [2021-11-07 02:15:33,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:15:33,732 INFO L470 AbstractCegarLoop]: Abstraction has 1169 states and 1476 transitions. [2021-11-07 02:15:33,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 23.0) internal successors, (230), 10 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:15:33,733 INFO L276 IsEmpty]: Start isEmpty. Operand 1169 states and 1476 transitions. [2021-11-07 02:15:33,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-07 02:15:33,734 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:15:33,735 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:15:33,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 02:15:33,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:15:33,950 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-07 02:15:33,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:15:33,951 INFO L85 PathProgramCache]: Analyzing trace with hash -732443752, now seen corresponding path program 1 times [2021-11-07 02:15:33,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:15:33,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [163830739] [2021-11-07 02:15:33,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:15:33,954 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:15:33,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:15:33,955 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:15:33,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 02:15:54,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:15:54,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 2065 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 02:15:54,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:15:55,119 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 02:15:55,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 132 treesize of output 36 [2021-11-07 02:15:55,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:15:55,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:15:56,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:15:56,404 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:15:56,404 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [163830739] [2021-11-07 02:15:56,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [163830739] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:15:56,405 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:15:56,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2021-11-07 02:15:56,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315875891] [2021-11-07 02:15:56,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 02:15:56,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:15:56,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 02:15:56,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 02:15:56,407 INFO L87 Difference]: Start difference. First operand 1169 states and 1476 transitions. Second operand has 9 states, 9 states have (on average 15.555555555555555) internal successors, (140), 9 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:21,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:18:21,326 INFO L93 Difference]: Finished difference Result 3429 states and 4352 transitions. [2021-11-07 02:18:21,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 02:18:21,333 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.555555555555555) internal successors, (140), 9 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2021-11-07 02:18:21,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:18:21,341 INFO L225 Difference]: With dead ends: 3429 [2021-11-07 02:18:21,341 INFO L226 Difference]: Without dead ends: 2378 [2021-11-07 02:18:21,343 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 260 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-11-07 02:18:21,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2378 states. [2021-11-07 02:18:21,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2378 to 1171. [2021-11-07 02:18:21,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 1141 states have (on average 1.2953549517966696) internal successors, (1478), 1170 states have internal predecessors, (1478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:21,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1478 transitions. [2021-11-07 02:18:21,450 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1478 transitions. Word has length 135 [2021-11-07 02:18:21,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:18:21,450 INFO L470 AbstractCegarLoop]: Abstraction has 1171 states and 1478 transitions. [2021-11-07 02:18:21,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.555555555555555) internal successors, (140), 9 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:21,450 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1478 transitions. [2021-11-07 02:18:21,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-07 02:18:21,451 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:18:21,452 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:18:21,510 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-11-07 02:18:21,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:18:21,654 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-07 02:18:21,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:18:21,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1358477613, now seen corresponding path program 1 times [2021-11-07 02:18:21,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:18:21,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1667777161] [2021-11-07 02:18:21,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:18:21,658 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:18:21,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:18:21,659 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:18:21,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-07 02:18:26,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:18:27,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 2076 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:18:27,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:18:27,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:18:27,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:18:28,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:18:28,089 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:18:28,089 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1667777161] [2021-11-07 02:18:28,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1667777161] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:18:28,089 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:18:28,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:18:28,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221752568] [2021-11-07 02:18:28,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:18:28,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:18:28,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:18:28,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:18:28,092 INFO L87 Difference]: Start difference. First operand 1171 states and 1478 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:28,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:18:28,870 INFO L93 Difference]: Finished difference Result 4351 states and 5508 transitions. [2021-11-07 02:18:28,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:18:28,871 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2021-11-07 02:18:28,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:18:28,886 INFO L225 Difference]: With dead ends: 4351 [2021-11-07 02:18:28,886 INFO L226 Difference]: Without dead ends: 3277 [2021-11-07 02:18:28,889 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:18:28,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3277 states. [2021-11-07 02:18:29,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3277 to 1219. [2021-11-07 02:18:29,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1219 states, 1189 states have (on average 1.2935239697224559) internal successors, (1538), 1218 states have internal predecessors, (1538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:29,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1219 states to 1219 states and 1538 transitions. [2021-11-07 02:18:29,027 INFO L78 Accepts]: Start accepts. Automaton has 1219 states and 1538 transitions. Word has length 136 [2021-11-07 02:18:29,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:18:29,027 INFO L470 AbstractCegarLoop]: Abstraction has 1219 states and 1538 transitions. [2021-11-07 02:18:29,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:29,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1219 states and 1538 transitions. [2021-11-07 02:18:29,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-07 02:18:29,029 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:18:29,030 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:18:29,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-07 02:18:29,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:18:29,230 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-07 02:18:29,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:18:29,231 INFO L85 PathProgramCache]: Analyzing trace with hash -179405219, now seen corresponding path program 1 times [2021-11-07 02:18:29,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:18:29,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1031769186] [2021-11-07 02:18:29,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:18:29,234 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:18:29,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:18:29,235 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:18:29,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-07 02:18:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:18:34,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 2078 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 02:18:34,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:18:35,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:18:35,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:18:35,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:18:35,755 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:18:35,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1031769186] [2021-11-07 02:18:35,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1031769186] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:18:35,756 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:18:35,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-07 02:18:35,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217822636] [2021-11-07 02:18:35,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 02:18:35,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:18:35,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 02:18:35,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:18:35,758 INFO L87 Difference]: Start difference. First operand 1219 states and 1538 transitions. Second operand has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:38,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:18:38,268 INFO L93 Difference]: Finished difference Result 4830 states and 6087 transitions. [2021-11-07 02:18:38,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 02:18:38,268 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2021-11-07 02:18:38,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:18:38,277 INFO L225 Difference]: With dead ends: 4830 [2021-11-07 02:18:38,277 INFO L226 Difference]: Without dead ends: 3696 [2021-11-07 02:18:38,281 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2021-11-07 02:18:38,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3696 states. [2021-11-07 02:18:38,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3696 to 1219. [2021-11-07 02:18:38,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1219 states, 1189 states have (on average 1.2867956265769553) internal successors, (1530), 1218 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:38,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1219 states to 1219 states and 1530 transitions. [2021-11-07 02:18:38,485 INFO L78 Accepts]: Start accepts. Automaton has 1219 states and 1530 transitions. Word has length 136 [2021-11-07 02:18:38,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:18:38,485 INFO L470 AbstractCegarLoop]: Abstraction has 1219 states and 1530 transitions. [2021-11-07 02:18:38,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:38,485 INFO L276 IsEmpty]: Start isEmpty. Operand 1219 states and 1530 transitions. [2021-11-07 02:18:38,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-07 02:18:38,487 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:18:38,487 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:18:38,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-11-07 02:18:38,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:18:38,702 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-07 02:18:38,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:18:38,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1133165007, now seen corresponding path program 1 times [2021-11-07 02:18:38,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:18:38,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [634028379] [2021-11-07 02:18:38,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:18:38,706 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:18:38,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:18:38,708 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:18:38,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7635bda-41e6-4b89-949e-f470c00cbaf7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-07 02:18:58,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:18:58,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 2081 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-07 02:18:58,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:19:00,301 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 02:19:00,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:19:03,366 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:19:03,366 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 [2021-11-07 02:19:03,427 INFO L354 Elim1Store]: treesize reduction 6, result has 60.0 percent of original size [2021-11-07 02:19:03,427 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 36 [2021-11-07 02:19:03,730 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 02:19:03,730 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:19:03,730 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [634028379] [2021-11-07 02:19:03,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [634028379] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:19:03,731 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:19:03,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 9] imperfect sequences [] total 17 [2021-11-07 02:19:03,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656925820] [2021-11-07 02:19:03,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-07 02:19:03,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:19:03,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-07 02:19:03,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2021-11-07 02:19:03,733 INFO L87 Difference]: Start difference. First operand 1219 states and 1530 transitions. Second operand has 17 states, 17 states have (on average 11.235294117647058) internal successors, (191), 17 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)