./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --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 3b33a1dc558667a4fcb18529533ebc713d63e8618dba1b7e6d3f152565826fd1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:15:01,429 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:15:01,560 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 07:15:01,565 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:15:01,566 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:15:01,589 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:15:01,590 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:15:01,590 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:15:01,591 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:15:01,591 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:15:01,592 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:15:01,592 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:15:01,593 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:15:01,593 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:15:01,594 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:15:01,594 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:15:01,595 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:15:01,595 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:15:01,595 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:15:01,596 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:15:01,596 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:15:01,597 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:15:01,598 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:15:01,598 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:15:01,599 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:15:01,599 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:15:01,599 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:15:01,600 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:15:01,600 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:15:01,600 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:15:01,601 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:15:01,601 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:15:01,602 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:15:01,602 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:15:01,602 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:15:01,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:15:01,603 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:15:01,603 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:15:01,603 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:15:01,604 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:15:01,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:15:01,605 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:15:01,605 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:15:01,605 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:15:01,606 INFO L153 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_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b33a1dc558667a4fcb18529533ebc713d63e8618dba1b7e6d3f152565826fd1 [2024-11-09 07:15:01,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:15:01,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:15:01,957 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:15:01,959 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:15:01,959 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:15:01,961 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i Unable to find full path for "g++" [2024-11-09 07:15:04,201 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:15:04,970 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:15:04,971 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2024-11-09 07:15:05,039 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/data/20722a885/28c896ae8dfe4da0a1210ce284caa348/FLAG3b70748c3 [2024-11-09 07:15:05,280 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/data/20722a885/28c896ae8dfe4da0a1210ce284caa348 [2024-11-09 07:15:05,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:15:05,284 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:15:05,285 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:15:05,285 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:15:05,291 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:15:05,292 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:15:05" (1/1) ... [2024-11-09 07:15:05,293 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25e3c46f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:05, skipping insertion in model container [2024-11-09 07:15:05,293 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:15:05" (1/1) ... [2024-11-09 07:15:05,453 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:15:05,814 WARN L250 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_9ba00388-adea-4cf7-85b0-73329f55ffde/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2024-11-09 07:15:05,824 WARN L250 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_9ba00388-adea-4cf7-85b0-73329f55ffde/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2024-11-09 07:15:06,982 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:06,983 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:06,988 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:06,990 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:06,992 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:07,018 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:07,019 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:07,026 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:07,027 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:07,030 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:07,031 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:07,033 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:07,033 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:07,931 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:07,932 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:07,987 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,002 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,106 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,107 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,107 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,108 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,108 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,109 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,109 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,110 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,111 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,111 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,112 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,112 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,112 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,116 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,117 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,117 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,118 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,122 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,123 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,132 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,134 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,134 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:15:08,238 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:15:08,256 WARN L250 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_9ba00388-adea-4cf7-85b0-73329f55ffde/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2024-11-09 07:15:08,261 WARN L250 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_9ba00388-adea-4cf7-85b0-73329f55ffde/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2024-11-09 07:15:08,321 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,322 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,322 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,323 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,323 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,338 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,342 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,344 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,344 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,346 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,350 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,350 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,351 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,475 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,476 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,480 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,490 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,500 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7776-7787] [2024-11-09 07:15:08,543 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,545 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,545 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,546 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,546 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,546 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,547 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,547 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,548 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,548 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,548 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,549 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,549 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,551 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,551 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,551 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,552 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,555 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,556 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,565 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,566 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,567 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:15:08,583 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:15:08,925 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:15:08,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:08 WrapperNode [2024-11-09 07:15:08,926 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:15:08,927 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:15:08,927 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:15:08,927 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:15:08,936 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:08" (1/1) ... [2024-11-09 07:15:09,034 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:08" (1/1) ... [2024-11-09 07:15:09,198 INFO L138 Inliner]: procedures = 686, calls = 1900, calls flagged for inlining = 59, calls inlined = 15, statements flattened = 951 [2024-11-09 07:15:09,199 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:15:09,200 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:15:09,200 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:15:09,201 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:15:09,215 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:08" (1/1) ... [2024-11-09 07:15:09,215 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:08" (1/1) ... [2024-11-09 07:15:09,240 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:08" (1/1) ... [2024-11-09 07:15:09,241 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:08" (1/1) ... [2024-11-09 07:15:09,335 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:08" (1/1) ... [2024-11-09 07:15:09,351 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:08" (1/1) ... [2024-11-09 07:15:09,369 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:08" (1/1) ... [2024-11-09 07:15:09,382 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:08" (1/1) ... [2024-11-09 07:15:09,413 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:15:09,414 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:15:09,414 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:15:09,414 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:15:09,415 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:08" (1/1) ... [2024-11-09 07:15:09,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:15:09,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:15:09,469 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:15:09,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:15:09,513 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_either [2024-11-09 07:15:09,514 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_either [2024-11-09 07:15:09,514 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2024-11-09 07:15:09,514 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2024-11-09 07:15:09,515 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-11-09 07:15:09,516 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-11-09 07:15:09,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 07:15:09,516 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-09 07:15:09,516 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-09 07:15:09,516 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-09 07:15:09,517 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-09 07:15:09,517 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-09 07:15:09,517 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-09 07:15:09,517 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2024-11-09 07:15:09,517 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2024-11-09 07:15:09,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 07:15:09,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 07:15:09,518 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-09 07:15:09,518 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-09 07:15:09,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 07:15:09,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 07:15:09,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 07:15:09,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:15:09,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 07:15:09,519 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2024-11-09 07:15:09,519 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2024-11-09 07:15:09,519 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-09 07:15:09,520 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-09 07:15:09,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:15:09,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:15:09,520 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-09 07:15:09,520 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-09 07:15:09,521 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-09 07:15:09,522 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-09 07:15:09,522 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-09 07:15:09,522 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-09 07:15:09,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 07:15:09,523 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-09 07:15:09,523 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-09 07:15:09,523 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2024-11-09 07:15:09,523 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2024-11-09 07:15:09,524 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-09 07:15:09,524 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-09 07:15:09,525 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 07:15:09,525 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 07:15:09,525 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-09 07:15:09,525 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-09 07:15:09,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 07:15:09,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 07:15:09,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 07:15:09,526 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2024-11-09 07:15:09,526 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2024-11-09 07:15:09,527 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-09 07:15:09,527 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-09 07:15:09,527 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-09 07:15:09,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-09 07:15:09,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 07:15:09,528 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-09 07:15:09,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-09 07:15:09,528 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2024-11-09 07:15:09,528 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2024-11-09 07:15:09,529 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-09 07:15:09,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-09 07:15:09,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:15:10,040 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:15:10,044 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:15:14,671 INFO L? ?]: Removed 225 outVars from TransFormulas that were not future-live. [2024-11-09 07:15:14,671 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:15:15,142 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:15:15,142 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 07:15:15,142 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:15:15 BoogieIcfgContainer [2024-11-09 07:15:15,142 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:15:15,145 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:15:15,145 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:15:15,149 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:15:15,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:15:05" (1/3) ... [2024-11-09 07:15:15,154 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fed4649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:15:15, skipping insertion in model container [2024-11-09 07:15:15,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:08" (2/3) ... [2024-11-09 07:15:15,155 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fed4649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:15:15, skipping insertion in model container [2024-11-09 07:15:15,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:15:15" (3/3) ... [2024-11-09 07:15:15,156 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_either_harness.i [2024-11-09 07:15:15,179 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:15:15,179 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 07:15:15,300 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:15:15,311 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2c6514c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:15:15,312 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 07:15:15,318 INFO L276 IsEmpty]: Start isEmpty. Operand has 313 states, 165 states have (on average 1.2303030303030302) internal successors, (203), 168 states have internal predecessors, (203), 120 states have call successors, (120), 25 states have call predecessors, (120), 25 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2024-11-09 07:15:15,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-09 07:15:15,335 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:15:15,336 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:15:15,336 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:15:15,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:15:15,343 INFO L85 PathProgramCache]: Analyzing trace with hash 313539148, now seen corresponding path program 1 times [2024-11-09 07:15:15,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:15:15,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015870545] [2024-11-09 07:15:15,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:15:15,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:15:24,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:15:25,968 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-09 07:15:25,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:15:25,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015870545] [2024-11-09 07:15:25,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015870545] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:15:25,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574728560] [2024-11-09 07:15:25,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:15:25,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:15:25,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:15:25,974 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:15:25,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 07:15:33,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:15:33,978 INFO L255 TraceCheckSpWp]: Trace formula consists of 4303 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 07:15:33,992 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:15:34,089 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-09 07:15:34,089 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:15:34,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574728560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:15:34,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:15:34,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-09 07:15:34,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298296687] [2024-11-09 07:15:34,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:15:34,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:15:34,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:15:34,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:15:34,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:15:34,147 INFO L87 Difference]: Start difference. First operand has 313 states, 165 states have (on average 1.2303030303030302) internal successors, (203), 168 states have internal predecessors, (203), 120 states have call successors, (120), 25 states have call predecessors, (120), 25 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-09 07:15:36,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:15:38,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:15:39,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:15:39,556 INFO L93 Difference]: Finished difference Result 558 states and 830 transitions. [2024-11-09 07:15:39,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:15:39,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 108 [2024-11-09 07:15:39,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:15:39,574 INFO L225 Difference]: With dead ends: 558 [2024-11-09 07:15:39,574 INFO L226 Difference]: Without dead ends: 311 [2024-11-09 07:15:39,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:15:39,586 INFO L432 NwaCegarLoop]: 404 mSDtfsCounter, 0 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:15:39,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 803 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 2 Unknown, 0 Unchecked, 5.3s Time] [2024-11-09 07:15:39,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-11-09 07:15:39,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2024-11-09 07:15:39,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 165 states have (on average 1.206060606060606) internal successors, (199), 167 states have internal predecessors, (199), 120 states have call successors, (120), 25 states have call predecessors, (120), 24 states have return successors, (118), 118 states have call predecessors, (118), 118 states have call successors, (118) [2024-11-09 07:15:39,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 437 transitions. [2024-11-09 07:15:39,681 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 437 transitions. Word has length 108 [2024-11-09 07:15:39,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:15:39,684 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 437 transitions. [2024-11-09 07:15:39,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-09 07:15:39,685 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 437 transitions. [2024-11-09 07:15:39,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-09 07:15:39,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:15:39,692 INFO L215 NwaCegarLoop]: trace histogram [9, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:15:39,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 07:15:39,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-09 07:15:39,894 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:15:39,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:15:39,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1466247437, now seen corresponding path program 1 times [2024-11-09 07:15:39,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:15:39,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644933290] [2024-11-09 07:15:39,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:15:39,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:15:46,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:15:48,339 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2024-11-09 07:15:48,343 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:15:48,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644933290] [2024-11-09 07:15:48,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644933290] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:15:48,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029827066] [2024-11-09 07:15:48,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:15:48,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:15:48,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:15:48,347 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:15:48,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 07:15:56,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:15:56,272 INFO L255 TraceCheckSpWp]: Trace formula consists of 4405 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 07:15:56,282 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:15:57,047 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-09 07:15:57,047 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:15:57,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029827066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:15:57,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:15:57,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-09 07:15:57,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099833675] [2024-11-09 07:15:57,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:15:57,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:15:57,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:15:57,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:15:57,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-09 07:15:57,056 INFO L87 Difference]: Start difference. First operand 311 states and 437 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-09 07:15:59,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:16:01,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:16:03,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:16:05,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:16:05,930 INFO L93 Difference]: Finished difference Result 582 states and 827 transitions. [2024-11-09 07:16:05,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:16:05,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 123 [2024-11-09 07:16:05,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:16:05,940 INFO L225 Difference]: With dead ends: 582 [2024-11-09 07:16:05,940 INFO L226 Difference]: Without dead ends: 313 [2024-11-09 07:16:05,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-09 07:16:05,944 INFO L432 NwaCegarLoop]: 381 mSDtfsCounter, 21 mSDsluCounter, 1083 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2024-11-09 07:16:05,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 1464 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 222 Invalid, 3 Unknown, 0 Unchecked, 8.8s Time] [2024-11-09 07:16:05,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-09 07:16:05,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2024-11-09 07:16:05,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 166 states have (on average 1.2048192771084338) internal successors, (200), 169 states have internal predecessors, (200), 120 states have call successors, (120), 25 states have call predecessors, (120), 25 states have return successors, (126), 118 states have call predecessors, (126), 118 states have call successors, (126) [2024-11-09 07:16:05,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 446 transitions. [2024-11-09 07:16:05,995 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 446 transitions. Word has length 123 [2024-11-09 07:16:05,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:16:05,996 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 446 transitions. [2024-11-09 07:16:05,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-09 07:16:05,997 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 446 transitions. [2024-11-09 07:16:06,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-09 07:16:06,000 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:16:06,001 INFO L215 NwaCegarLoop]: trace histogram [9, 7, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:16:06,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 07:16:06,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:16:06,202 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:16:06,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:16:06,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1782098452, now seen corresponding path program 1 times [2024-11-09 07:16:06,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:16:06,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923194538] [2024-11-09 07:16:06,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:06,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:16:12,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:14,574 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2024-11-09 07:16:14,575 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:16:14,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923194538] [2024-11-09 07:16:14,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923194538] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:16:14,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1039515936] [2024-11-09 07:16:14,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:14,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:16:14,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:16:14,579 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:16:14,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 07:16:21,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:21,623 INFO L255 TraceCheckSpWp]: Trace formula consists of 4455 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 07:16:21,631 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:16:22,723 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-09 07:16:22,724 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:16:22,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1039515936] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:16:22,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:16:22,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2024-11-09 07:16:22,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342159990] [2024-11-09 07:16:22,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:16:22,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 07:16:22,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:16:22,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 07:16:22,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-09 07:16:22,728 INFO L87 Difference]: Start difference. First operand 313 states and 446 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-09 07:16:24,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:16:27,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:16:29,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:16:31,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:16:33,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:16:38,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:16:38,760 INFO L93 Difference]: Finished difference Result 597 states and 870 transitions. [2024-11-09 07:16:38,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 07:16:38,761 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 131 [2024-11-09 07:16:38,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:16:38,766 INFO L225 Difference]: With dead ends: 597 [2024-11-09 07:16:38,767 INFO L226 Difference]: Without dead ends: 326 [2024-11-09 07:16:38,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-09 07:16:38,771 INFO L432 NwaCegarLoop]: 378 mSDtfsCounter, 17 mSDsluCounter, 1816 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 2194 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2024-11-09 07:16:38,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 2194 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 423 Invalid, 5 Unknown, 0 Unchecked, 15.8s Time] [2024-11-09 07:16:38,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-09 07:16:38,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 324. [2024-11-09 07:16:38,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 174 states have (on average 1.206896551724138) internal successors, (210), 177 states have internal predecessors, (210), 122 states have call successors, (122), 25 states have call predecessors, (122), 26 states have return successors, (139), 121 states have call predecessors, (139), 120 states have call successors, (139) [2024-11-09 07:16:38,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 471 transitions. [2024-11-09 07:16:38,854 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 471 transitions. Word has length 131 [2024-11-09 07:16:38,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:16:38,855 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 471 transitions. [2024-11-09 07:16:38,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-09 07:16:38,855 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 471 transitions. [2024-11-09 07:16:38,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-09 07:16:38,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:16:38,859 INFO L215 NwaCegarLoop]: trace histogram [9, 7, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:16:38,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 07:16:39,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:16:39,060 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:16:39,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:16:39,061 INFO L85 PathProgramCache]: Analyzing trace with hash -894048310, now seen corresponding path program 1 times [2024-11-09 07:16:39,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:16:39,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815684373] [2024-11-09 07:16:39,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:39,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:16:46,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:48,056 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2024-11-09 07:16:48,056 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:16:48,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815684373] [2024-11-09 07:16:48,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815684373] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:16:48,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230920905] [2024-11-09 07:16:48,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:48,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:16:48,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:16:48,059 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:16:48,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 07:16:56,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:56,067 INFO L255 TraceCheckSpWp]: Trace formula consists of 4559 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 07:16:56,073 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:16:57,090 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-09 07:16:57,091 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:16:57,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230920905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:16:57,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:16:57,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2024-11-09 07:16:57,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463290739] [2024-11-09 07:16:57,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:16:57,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:16:57,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:16:57,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:16:57,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-09 07:16:57,094 INFO L87 Difference]: Start difference. First operand 324 states and 471 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2024-11-09 07:16:59,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:17:01,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:17:03,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:17:06,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:17:09,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:09,430 INFO L93 Difference]: Finished difference Result 612 states and 906 transitions. [2024-11-09 07:17:09,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:17:09,431 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 140 [2024-11-09 07:17:09,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:09,435 INFO L225 Difference]: With dead ends: 612 [2024-11-09 07:17:09,436 INFO L226 Difference]: Without dead ends: 330 [2024-11-09 07:17:09,438 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-09 07:17:09,439 INFO L432 NwaCegarLoop]: 380 mSDtfsCounter, 26 mSDsluCounter, 1435 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 1815 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:17:09,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 1815 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 300 Invalid, 4 Unknown, 0 Unchecked, 12.3s Time] [2024-11-09 07:17:09,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2024-11-09 07:17:09,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 324. [2024-11-09 07:17:09,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 174 states have (on average 1.206896551724138) internal successors, (210), 177 states have internal predecessors, (210), 122 states have call successors, (122), 25 states have call predecessors, (122), 26 states have return successors, (139), 121 states have call predecessors, (139), 120 states have call successors, (139) [2024-11-09 07:17:09,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 471 transitions. [2024-11-09 07:17:09,469 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 471 transitions. Word has length 140 [2024-11-09 07:17:09,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:17:09,470 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 471 transitions. [2024-11-09 07:17:09,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2024-11-09 07:17:09,471 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 471 transitions. [2024-11-09 07:17:09,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-09 07:17:09,473 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:09,474 INFO L215 NwaCegarLoop]: trace histogram [9, 7, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:17:09,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 07:17:09,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:17:09,675 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:17:09,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:09,676 INFO L85 PathProgramCache]: Analyzing trace with hash -336348507, now seen corresponding path program 1 times [2024-11-09 07:17:09,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:17:09,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852696293] [2024-11-09 07:17:09,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:09,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:17:15,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:17,808 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2024-11-09 07:17:17,808 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:17:17,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852696293] [2024-11-09 07:17:17,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852696293] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:17:17,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650817168] [2024-11-09 07:17:17,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:17,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:17:17,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:17:17,812 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:17:17,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 07:17:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:26,605 INFO L255 TraceCheckSpWp]: Trace formula consists of 4599 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 07:17:26,610 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:28,303 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-09 07:17:28,303 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:17:28,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650817168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:17:28,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:17:28,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2024-11-09 07:17:28,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776770925] [2024-11-09 07:17:28,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:17:28,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 07:17:28,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:17:28,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 07:17:28,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2024-11-09 07:17:28,306 INFO L87 Difference]: Start difference. First operand 324 states and 471 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2024-11-09 07:17:30,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:17:32,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:17:34,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:17:37,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:17:39,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:17:41,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:17:47,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:47,186 INFO L93 Difference]: Finished difference Result 623 states and 921 transitions. [2024-11-09 07:17:47,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 07:17:47,186 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) Word has length 148 [2024-11-09 07:17:47,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:47,190 INFO L225 Difference]: With dead ends: 623 [2024-11-09 07:17:47,190 INFO L226 Difference]: Without dead ends: 341 [2024-11-09 07:17:47,192 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-09 07:17:47,193 INFO L432 NwaCegarLoop]: 377 mSDtfsCounter, 23 mSDsluCounter, 2169 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 3 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 2546 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:17:47,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 2546 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 513 Invalid, 6 Unknown, 0 Unchecked, 18.7s Time] [2024-11-09 07:17:47,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-11-09 07:17:47,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 324. [2024-11-09 07:17:47,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 174 states have (on average 1.206896551724138) internal successors, (210), 177 states have internal predecessors, (210), 122 states have call successors, (122), 25 states have call predecessors, (122), 26 states have return successors, (139), 121 states have call predecessors, (139), 120 states have call successors, (139) [2024-11-09 07:17:47,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 471 transitions. [2024-11-09 07:17:47,216 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 471 transitions. Word has length 148 [2024-11-09 07:17:47,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:17:47,217 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 471 transitions. [2024-11-09 07:17:47,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2024-11-09 07:17:47,217 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 471 transitions. [2024-11-09 07:17:47,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-09 07:17:47,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:47,220 INFO L215 NwaCegarLoop]: trace histogram [9, 7, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:17:47,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 07:17:47,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:17:47,420 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:17:47,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:47,421 INFO L85 PathProgramCache]: Analyzing trace with hash -2079527809, now seen corresponding path program 1 times [2024-11-09 07:17:47,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:17:47,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357404431] [2024-11-09 07:17:47,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:47,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:17:52,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:54,746 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-09 07:17:54,748 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:17:54,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357404431] [2024-11-09 07:17:54,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357404431] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:17:54,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499198198] [2024-11-09 07:17:54,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:54,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:17:54,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:17:54,750 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:17:54,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 07:18:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:18:02,989 INFO L255 TraceCheckSpWp]: Trace formula consists of 4703 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 07:18:02,996 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:18:04,326 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-09 07:18:04,326 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:18:04,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499198198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:18:04,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:18:04,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2024-11-09 07:18:04,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55873139] [2024-11-09 07:18:04,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:18:04,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 07:18:04,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:18:04,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 07:18:04,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-09 07:18:04,329 INFO L87 Difference]: Start difference. First operand 324 states and 471 transitions. Second operand has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 4 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-09 07:18:06,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:18:08,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:18:10,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:18:13,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:18:15,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:18:18,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:18:18,900 INFO L93 Difference]: Finished difference Result 578 states and 855 transitions. [2024-11-09 07:18:18,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 07:18:18,901 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 4 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 157 [2024-11-09 07:18:18,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:18:18,910 INFO L225 Difference]: With dead ends: 578 [2024-11-09 07:18:18,911 INFO L226 Difference]: Without dead ends: 326 [2024-11-09 07:18:18,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-09 07:18:18,914 INFO L432 NwaCegarLoop]: 379 mSDtfsCounter, 70 mSDsluCounter, 1765 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 41 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 2144 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:18:18,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 2144 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 321 Invalid, 5 Unknown, 0 Unchecked, 14.4s Time] [2024-11-09 07:18:18,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-09 07:18:18,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326. [2024-11-09 07:18:18,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 175 states have (on average 1.2057142857142857) internal successors, (211), 179 states have internal predecessors, (211), 122 states have call successors, (122), 25 states have call predecessors, (122), 27 states have return successors, (145), 121 states have call predecessors, (145), 120 states have call successors, (145) [2024-11-09 07:18:18,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 478 transitions. [2024-11-09 07:18:18,947 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 478 transitions. Word has length 157 [2024-11-09 07:18:18,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:18:18,949 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 478 transitions. [2024-11-09 07:18:18,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 4 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-09 07:18:18,950 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 478 transitions. [2024-11-09 07:18:18,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-09 07:18:18,953 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:18:18,954 INFO L215 NwaCegarLoop]: trace histogram [9, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:18:19,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 07:18:19,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:18:19,154 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:18:19,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:18:19,155 INFO L85 PathProgramCache]: Analyzing trace with hash -889172474, now seen corresponding path program 1 times [2024-11-09 07:18:19,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:18:19,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596323946] [2024-11-09 07:18:19,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:18:19,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:18:25,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:18:27,903 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-09 07:18:27,903 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:18:27,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596323946] [2024-11-09 07:18:27,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596323946] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:18:27,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030151022] [2024-11-09 07:18:27,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:18:27,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:18:27,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:18:27,905 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:18:27,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 07:18:36,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:18:36,315 INFO L255 TraceCheckSpWp]: Trace formula consists of 4753 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 07:18:36,321 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:18:38,437 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-09 07:18:38,438 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:18:38,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030151022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:18:38,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:18:38,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2024-11-09 07:18:38,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74084985] [2024-11-09 07:18:38,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:18:38,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 07:18:38,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:18:38,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 07:18:38,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2024-11-09 07:18:38,440 INFO L87 Difference]: Start difference. First operand 326 states and 478 transitions. Second operand has 9 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 5 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2024-11-09 07:18:40,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:18:42,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:18:45,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:18:47,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:18:49,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:18:51,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:18:54,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:18:59,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:18:59,907 INFO L93 Difference]: Finished difference Result 588 states and 877 transitions. [2024-11-09 07:18:59,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 07:18:59,908 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 5 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) Word has length 165 [2024-11-09 07:18:59,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:18:59,912 INFO L225 Difference]: With dead ends: 588 [2024-11-09 07:18:59,912 INFO L226 Difference]: Without dead ends: 334 [2024-11-09 07:18:59,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2024-11-09 07:18:59,915 INFO L432 NwaCegarLoop]: 374 mSDtfsCounter, 66 mSDsluCounter, 2470 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 37 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 2844 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:18:59,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 2844 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 550 Invalid, 7 Unknown, 0 Unchecked, 21.1s Time] [2024-11-09 07:18:59,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-09 07:18:59,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 332. [2024-11-09 07:18:59,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 180 states have (on average 1.2055555555555555) internal successors, (217), 183 states have internal predecessors, (217), 123 states have call successors, (123), 25 states have call predecessors, (123), 27 states have return successors, (146), 123 states have call predecessors, (146), 121 states have call successors, (146) [2024-11-09 07:18:59,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 486 transitions. [2024-11-09 07:18:59,942 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 486 transitions. Word has length 165 [2024-11-09 07:18:59,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:18:59,943 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 486 transitions. [2024-11-09 07:18:59,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 5 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2024-11-09 07:18:59,943 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 486 transitions. [2024-11-09 07:18:59,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-09 07:18:59,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:18:59,947 INFO L215 NwaCegarLoop]: trace histogram [9, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:18:59,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 07:19:00,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:19:00,148 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:19:00,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:19:00,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1381219414, now seen corresponding path program 1 times [2024-11-09 07:19:00,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:19:00,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493698505] [2024-11-09 07:19:00,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:19:00,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:19:05,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:19:08,042 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-09 07:19:08,042 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:19:08,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493698505] [2024-11-09 07:19:08,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493698505] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:19:08,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890329811] [2024-11-09 07:19:08,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:19:08,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:19:08,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:19:08,046 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:19:08,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 07:19:16,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:19:16,909 INFO L255 TraceCheckSpWp]: Trace formula consists of 4857 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 07:19:16,916 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:19:18,594 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-09 07:19:18,594 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:19:18,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890329811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:19:18,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:19:18,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2024-11-09 07:19:18,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764187346] [2024-11-09 07:19:18,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:19:18,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 07:19:18,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:19:18,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 07:19:18,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-09 07:19:18,598 INFO L87 Difference]: Start difference. First operand 332 states and 486 transitions. Second operand has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 5 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2024-11-09 07:19:20,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:19:22,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:19:25,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:19:27,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:19:29,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:19:31,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:19:37,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:19:37,174 INFO L93 Difference]: Finished difference Result 598 states and 894 transitions. [2024-11-09 07:19:37,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 07:19:37,175 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 5 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) Word has length 174 [2024-11-09 07:19:37,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:19:37,179 INFO L225 Difference]: With dead ends: 598 [2024-11-09 07:19:37,180 INFO L226 Difference]: Without dead ends: 338 [2024-11-09 07:19:37,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-09 07:19:37,183 INFO L432 NwaCegarLoop]: 378 mSDtfsCounter, 75 mSDsluCounter, 2113 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 42 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 2491 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:19:37,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 2491 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 405 Invalid, 6 Unknown, 0 Unchecked, 18.4s Time] [2024-11-09 07:19:37,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2024-11-09 07:19:37,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 332. [2024-11-09 07:19:37,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 180 states have (on average 1.2055555555555555) internal successors, (217), 183 states have internal predecessors, (217), 123 states have call successors, (123), 25 states have call predecessors, (123), 27 states have return successors, (146), 123 states have call predecessors, (146), 121 states have call successors, (146) [2024-11-09 07:19:37,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 486 transitions. [2024-11-09 07:19:37,211 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 486 transitions. Word has length 174 [2024-11-09 07:19:37,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:19:37,212 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 486 transitions. [2024-11-09 07:19:37,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 5 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2024-11-09 07:19:37,212 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 486 transitions. [2024-11-09 07:19:37,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-09 07:19:37,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:19:37,216 INFO L215 NwaCegarLoop]: trace histogram [9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:19:37,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 07:19:37,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:19:37,417 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:19:37,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:19:37,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1651476815, now seen corresponding path program 2 times [2024-11-09 07:19:37,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:19:37,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262257979] [2024-11-09 07:19:37,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:19:37,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:19:42,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:19:45,417 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2024-11-09 07:19:45,418 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:19:45,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262257979] [2024-11-09 07:19:45,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262257979] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:19:45,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309831726] [2024-11-09 07:19:45,418 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:19:45,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:19:45,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:19:45,421 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:19:45,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba00388-adea-4cf7-85b0-73329f55ffde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process